Motorola GP Series Detailed Service Manual
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Motorola GP Series Detailed Service Manual

Professional portable radio uhf 800mhz dsm
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Table of Contents

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Professional
Portable Radio
Detailed Service Manual
6866558D03-P

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Summary of Contents for Motorola GP Series

  • Page 1 Professional Portable Radio Detailed Service Manual 6866558D03-P...
  • Page 3 Professional Radio GP Series Detailed Service Manual 6866558D03-P Contents Section 1 Service Maintainability Section 2 Keypad Service Information Section 3 Power Distribution and Controller Information Section 4 UHF1 Service Information Section 5 UHF2 Service Information Section 6 800MHz Service Information EMEA Publications Department, Jays Close, Viables Industrial Estate, Basingstoke, Hampshire, RG22 4PD, UK.
  • Page 4 Document History The following major changes have been implemented in this manual since the previous edition: Edition Description Date 6866558D03-P UHF Narrow Band (450-470 MHz) June 2007 Contoller Board & Digital Architecture added to June 2007 UHF Theory UHF Narrow Band (450-470 MHz) PCB June 2007 Schematics/Parts List added PCB 8415234H05 UHF Narrow Band...
  • Page 5 Professional Radio GP Series Service Maintainability Issue: July 2007...
  • Page 6 Accordingly, any copyrighted Motorola computer programs contained in the Motorola products described in this manual may not be copied or reproduced in any manner without the express written permission of Motorola. Furthermore, the purchase of Motorola...

  • Page 7: Safety Information

    Read this information before using the radio. PRODUCT SAFETY AND RF EXPOSURE FOR PORTABLE TWO-WAY RADIOS. This document provides information and instructions for the safe and efficient operation of Motorola Portable Two-Way Radios. RF Energy Exposure Awareness and Control Information and Operational...

  • Page 8: Operating Instructions

    Compliance with RF Exposure Standards Your Motorola two-way radio is designed and tested to comply with a number of national and International standards and guidelines (listed below) for human exposure to radio frequency electromagnetic energy. This radio complies with the IEEE (FCC) and ICNIRP exposure limits for occupational/controlled RF exposure environments at operating duty factors of up to 50% talk- 50% listen and is authorized by the IEEE/ICNIRP for occupational use only.

  • Page 9: Approved Accessories

    Motorola - approved antennas, batteries and accessories may exceed IEEE/ICNIRP RF exposure guidelines. For a list of Motorola-approved antennas, batteries, and other accessories please see your dealer or local Motorola contact. Your nearest dealer can be found at the following web site: http://www.motorola.com/cgiss/emea/dealerlocator.html Additional Information For additional information on exposure requirements or other training information, visit http://www.motorola.com/rfhealth.

  • Page 10: Medical Devices

    ELECTROMAGNETIC INTERFERENCE/COMPATIBILITY NOTE: Nearly every electronic device is susceptible to electromagnetic interference (EMI) if inadequately shielded, designed or otherwise configured for electromagnetic compatibility. Facilities To avoid electromagnetic interference and/or compatibility conflicts, turn off your radio in any facility where posted notices instruct you to do so. Hospitals or health care facilities may be using equipment that is sensitive to external RF energy.

  • Page 11: Potentially Explosive Atmospheres

    OPERATIONAL WARNINGS Vehicles with an air bag Refer to vehicle manufacturer's manual prior to installation of electronic equipment to avoid interference with air bag wiring. WARNING: Do not place a portable radio in the area over an air bag or in the air bag deployment area.
  • Page 12 Warnings for Radios Approved as Intrinsically Safe Radios must ship from the Motorola manufacturing facility with the hazardous atmosphere capability and the intrinsic safety approval labelling (FM, UL, CSA, CENELEC or ATEX). Radios will not be upgraded to this capability and labeled once they have been shipped to the field.
  • Page 13 The manual PN referenced on the Intrinsically Safe Approval Label identifies the approved Accessories and or options that can be used with that portable radio unit. Using a non Motorola intrinsically safe battery and or accessory with the Motorola approved radio unit will void the intrinsically safe approval of that radio unit.
  • Page 14 THIS PAGE INTENTIONALLY LEFT BLANK...

  • Page 15: Table Of Contents

    Table of Contents Chapter 1 INTRODUCTION 1.0 Scope of Manual ....................1-1 2.0 Warranty and Service Support................1-1 2.1 Warranty Period and Return Instructions ............1-1 2.2 After Warranty Period ..................1-1 2.3 European Radio Support Centre (ERSC)............1-2 2.4 Piece Parts .....................1-2 2.5 Technical Support...................1-3 2.6 Related Documents ..................1-3 3.0 Radio Model Information..................1-4 Chapter 2...
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  • Page 17: Chapter 1 Introduction

    In instances where the product is covered under a "return for replacement" or "return for repair" warranty, a check of the product should be performed prior to shipping the unit back to Motorola. This is to ensure that the product has been correctly programmed or has not been subjected to damage outside the terms of the warranty.

  • Page 18: European Radio Support Centre (Ersc)

    Aftermarket and Accessory Division (AAD). If no part number is assigned, the part is not normally available from Motorola. If the part number is appended with an asterisk, the part is serviceable by Motorola Depot only. If a parts list is not included, this generally means that no user-serviceable parts are available for that kit or assembly.

  • Page 19: Technical Support

    Warranty and Service Support Technical Support Motorola Product Services is available to assist the dealer/distributors in resolving any malfunctions which may be encountered. North Europe - Stephen Woodrow Central and East Europe - Siggy Punzenberger Telephone: +44 (0) 1256 488 082...

  • Page 20: Radio Model Information

    INTRODUCTION Radio Model Information The model number and serial number are located on a label attached to the back of your radio. You can determine the RF output power, frequency band, protocols, and physical packages. The example below shows one portable radio model number and its specific characteristics. Table 1-1 Radio Model Number (Example: MDH25KDC9AA3AE) Type of Model...

  • Page 21: Chapter 2 Maintenance

    The Servicing of your Intrinsically Safe Radios. In order to maintain compliance, radios that are FM Approved to intrinsically safe standards MUST be repaired at FM audited service centers. See Further Assistance From Motorola on page 1-2 for more information.

  • Page 22: Safe Handling Of Cmos And Ldmos

    (Waste Electrical and Electronic Equipment (WEEE) Directive 2002/96/EC and Restriction of Hazardous Subtances (ROHS) Directive 2002/95/EC). To maintain product compliance and reliability, use only the Motorola specified parts in this manual. For the identification of lead (Pb) free assemblies, all EPP products will carry the EPP Marking, shown below, on the printed circuit board (PCB).
  • Page 23 When damaged parts are replaced, identical parts should be used. If the identical replacement component is not locally available, check the parts list for the proper Motorola part number and order the component from the nearest Motorola Communications parts center listed in the “Piece Parts”...
  • Page 24 MAINTENANCE Select the appropriate micro-tipped soldering iron and apply fresh solder to one of the solder pads. Using a pair of tweezers, position the new chip component in place while heating the fresh solder. Once solder wicks onto the new component, remove the heat from the solder. Heat the remaining pad with the soldering iron and apply solder until it wicks to the component.

  • Page 25: Notes For All Schematics And Circuit Boards

    1. Unless otherwise stated, resistances are in Ohms (k = 1000), and capacitances are in picofarads (pF) or microfarads (µF). 2. DC voltages are measured from point indicated to chassis ground using a Motorola DC multimeter or equivalent. Transmitter measurements should be made with a 1.2 µF choke in series with the voltage probe to prevent circuit loading.
  • Page 26 MAINTENANCE THIS PAGE INTENTIONALLY LEFT BLANK...

  • Page 27: Chapter 3 Service Aids

    Table 3-1 lists the service aids recommended for working on the radio. While all of these items are available from Motorola, most are standard workshop equipment items, and any equivalent item capable of the same performance may be substituted for the item listed.
  • Page 28 SERVICE AIDS Table 3-2 lists the recommended tools used for maintaining this family of radios. These tools are also available from Motorola.. Table 3-2 Recommended Test Tools Motorola Part Description Application Number 6680702Z01 Chassis opener and knob Disassembly tool removal tool.

  • Page 29: Recommended Test Equipment

    Test Equipment Test Equipment Table 3-3 lists test equipment required to service the radio and other two-way radios. Table 3-3 Recommended Test Equipment Motorola Part Description Characteristics Application Number R2600_ Comms System Analyzer This monitor will Frequency/deviation meter and (non MPT).
  • Page 30 SERVICE AIDS Motorola Part Description Characteristics Application Number * R1440_ Wattmeter, Thruline 50-Ohm, Transmitter power output ±5% accuracy measurements. * 0180305F14 Plug-in Element 10W, 25 - 60MHz * 0180305F29 Plug-in Element 5W, 100-250MHz * 0180305F38 Plug-in Element 5W, 200-500MHz * 0180305F46...

  • Page 31: Power Up Self-Test

    Section 4 POWER UP SELF-TEST Error Codes Turning on the radio using the on/off volume control starts a self-test routine which checks the RAM, ROM checksum, EEPROM hardware and EEPROM checksum. If these checks are successfully completed, the radio will generate the Self-Test Pass Tone. If the self-test is not successful, a “bonk” is heard.
  • Page 32 Error Codes Notes...
  • Page 33 Professional Radio GP Series Keypad and Flex Service Information Issue: July 2007...
  • Page 34 Accordingly, any copyrighted Motorola computer programs contained in the Motorola products described in this manual may not be copied or reproduced in any manner without the express written permission of Motorola. Furthermore, the purchase of Motorola...
  • Page 35 Table of Contents Chapter 1 THEORY OF OPERATION 1.0 Keypad and Flexible Connectors .................1-1 1.1 Keypad ......................1-1 1.2 Flexible Connectors..................1-1 2.0 Troubleshooting Chart ..................1-2 3.0 Parts List (Keypad Basic)..................1-3 Chapter 2 PCB / SCHEMATICS / PARTS LISTS 1.0 Allocation of Schematics and Circuit Boards ............2-1 1.1 Flexible Connectors..................2-1 1.2 Keypad PCBs ....................2-1 2.0 PCB/Schematic Diagrams and Parts List: Flexes..........2-3...
  • Page 36 THIS PAGE INTENTIONALLY LEFT BLANK...

  • Page 37: Chapter 1 Theory Of Operation

    Chapter 1 THEORY OF OPERATION Keypad and Flexible Connectors Keypad The keypad block diagram is shown in Figure 1-1. U602 is a comparator that will compare the voltage when any one of the keypad row or keypad column keys is being pressed. Therefore when a key is being pressed, it will send a message to the microprocessor through the output (KEY_INT) telling it that a key has been pressed.

  • Page 38: Troubleshooting Chart

    THEORY OF OPERATION Troubleshooting Chart Disconnect and Display reconnect 18-pin flex if still Off Disconnect and Keypad reconnect 40-pin flex Figure 1-2 Keypad Board Troubleshooting Chart...

  • Page 39: Parts List (Keypad Basic)

    Parts List (Keypad Basic) Parts List (Keypad Basic) Motorola Circuit Ref Description Part No. Motorola Circuit Ref Description R602 0662057A66 Part No. R603 0662057M82 2.2K C601 2113743N50 100 pF R605 0662057M01 0 ohm C602 2311049A86 1 uF R610 0662057M01 0 ohm...
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  • Page 41: Allocation Of Schematics And Circuit Boards

    Chapter 2 PCB / SCHEMATICS / PARTS LISTS Allocation of Schematics and Circuit Boards The printed circuit boards (PCB) and schematic diagrams related to the Flexible Connectors and the Keypads are shown in the tables below: Flexible Connectors Table 2-1: Keypad /Controller Flex Flex : 8480475Z02 Flex...
  • Page 42 PCB / SCHEMATICS / PARTS LISTS Table 2-5: GP1280 Keypad PCB : 8480682Z04 Flex Page 2-13 Schematic Page 2-14 Parts List Page 2-15 Table 2-6: Standard Keypad PCB : 8480574Z05 Flex Page 2-17 Schematic Page 2-18 Parts List Page 2-19 Table 2-7: GP1280 Keypad PCB : 8480682Z01...

  • Page 43: Pcb/Schematic Diagrams And Parts List: Flexes

    PCB/Schematic Diagrams and Parts List: Flexes PCB/Schematic Diagrams and Parts List: Flexes Keypad - Controller Flex KEYPAD CONTROLLER J200 J100 EXT_MIC EXT_MIC VS_CS VS_CS SW_B+ SW_B+ <- TO KP Vddd Vddd VS_AUDSEL VS_AUDSEL Det_Aud_Snd Det_Aud_Snd Rx_Aud_Rtn Rx_Aud_Rtn Tx_Aud_Snd Tx_Aud_Snd TO CTRL -> Tx_Aud_Rtn 8480475Z02 REV A Tx_Aud_Rtn...

  • Page 44: Universal Connector Flex

    PCB/Schematic Diagrams and Parts List: Flexes Universal Connector Flex J403 20 PIN CONN SPKR_20 INT_SPK+ 3 PIN UNIVERSAL CONN INT_SPK- SPKR_20 EXT_SPKR+ J404 J404 SPKR_20 EXT_SPK- J405 J405 J406 OPT_B+30 J407 DPT_B+ J406 J408 J409 J407 EXT_MIC J410 J411 OPT_SEL_2 J408 J412 J413...
  • Page 45 PCB/Schematic Diagrams and Parts List: Flexes Universal Connector Flex UNIVERSAL FLEX M400 SPKR_20 J403 20 PIN CONN SPKR_20 INT_SPK+ 13 PIN UNIVERSAL CONN INT_SPK- SPKR_20 EXT_SPKR+ EXT_SPKR+ J404 SPKR_20 EXT_SPK- EXT_SPKR- J405 OPT_B+30 OPT_B+ OPT_B+ J406 EXT_MIC EXT_MIC J407 OPT_SEL_2 OPT_SEL_2 J408 OPT_SEL_1...

  • Page 46: Keypad Board And Schematic Diagram

    PCB/Schematic Diagrams and Parts List: Flexes Keypad Board And Schematic Diagram R620 R626 R606 J602 Q603 Q602 Q601 R632 R629 R622 R627 R623 C611 J601 C612 C613 Keypad Board Top and Bottom View for GP380 (PCB No. 8480574Z02)
  • Page 47 PCB/Schematic Diagrams and Parts List: Flexes Vddd R637 40 PINS CONNECTOR EXT_MIC J601-1 EXT_MIC ROW3 ROW4 ROW5 VS_CS J601-2 VS_CS M604 M605 M606 C610 SWB+ J601-3 SW_B+ R614 SWITCH SWITCH SWITCH R632 100pF J601-4 Vddd R615 100K 1 OUT1 OUT1 1 OUT1 VS_AUDSEL J601-5...
  • Page 48 PCB/Schematic Diagrams and Parts List: Flexes THIS PAGE INTENTIONALLY LEFT BLANK...

  • Page 49: Pcb/Schematic Diagrams And Parts List: Keypad

    PCB/Schematic Diagrams and Parts List: Keypad PCB 8480682Z04 - Diagrams M601 M602 M603 R643 R629 M604 M606 M605 R631 R633 R634 R641 M607 M609 R626 R624 E616 E620 R630 R627 R606 E614 M608 E613 E618 R632 E609 Q604 R602 R603 J602 C601 M612...
  • Page 50 2-10 PCB/Schematic Diagrams and Parts List: Keypad ROW5 ROW3 ROW4 M601 M602 M603 SWITCH SWITCH SWITCH OUT1 OUT1 OUT1 OUT2 OUT2 OUT2 C606 100pF 40 PINS CONNECTOR SWB+ COL4 EXT_MIC EXT_MIC J601-1 VS_CS VS_CS J601-2 C607 SW_B+ ROW3 ROW4 ROW5 SWB+ J601-3 1000pF...

  • Page 51: Pcb 8480682Z04 - Parts List

    PCB/Schematic Diagrams and Parts List: Keypad 2-11 GP1280 PCB 8480682Z04 - Parts List Circuit Motorola Description Part No. Circuit Motorola Description Q604 4813824A10 NPN 40V .2A GEN PURP Part No. Q605 4813824A10 NPN 40V .2A GEN PURP C601 2113743N50 100 PF 5%...
  • Page 52 2-12 PCB/Schematic Diagrams and Parts List: Keypad THIS PAGE INTENTIONALLY LEFT BLANK...

  • Page 53: Pcb 8480574Z05 - Diagram

    PCB/Schematic Diagrams and Parts List: Keypad 2-13 PCB 8480574Z05 - Diagrams R620 R626 R606 Q603 C621 Q602 Q601 R632 R629 R622 R623 E637 R627 C619 C611 C617 J601 C618 C612 C613 ZMY0130489-O ZMY0130490-O Keypad Board (PCB No. 8480574Z05)
  • Page 54 2-14 PCB/Schematic Diagrams and Parts List: Keypad Vddd C618 C617 100pF E637 40 PIN CONNECTOR C622 100pF C610 EXT_MIC EXT_MIC J601-1 ROW3 ROW4 ROW5 M606 VS_CS J601-2 VS_CS M604 M605 100pF SWITCH SWB+ J601-3 SW_B+ R614 SWITCH SWITCH R632 C621 C620 C619 R615...

  • Page 55: Pcb 8480574Z05 - Parts List

    PCB/Schematic Diagrams and Parts List: Keypad 2-15 PCB 8480574Z05 - Parts List Motorola Circuit Ref Description Part No. Q601 4805128M67 MMBT3906 Motorola Circuit Ref Description transistor (PNP) Part No. Q602 4880214G02 MMBT3904 C610 2113743N50 100 pF transistor (NPN) C611 2113743N50...
  • Page 56 2-16 PCB/Schematic Diagrams and Parts List: Keypad THIS PAGE INTENTIONALLY LEFT BLANK...

  • Page 57: Pcb 8480682Z01 - Diagram

    PCB/Schematic Diagrams and Parts List: Keypad 2-17 PCB 8480682Z01 - Diagrams D602 D606 M601 M603 M602 Q606 R643 R629 M604 M605 M606 R631 R633 D601 D605 Q605 R634 R641 M607 M609 M608 R626 R624 R614 R613 Q604 R602 R603 J602 M610 M611 M612...
  • Page 58 2-18 PCB/Schematic Diagrams and Parts List: Keypad Keypad row available only on Prime radio models ROW3 ROW4 ROW5 M601 M602 M603 SWITCH SWITCH SWITCH OUT1 OUT1 OUT1 OUT2 OUT2 OUT2 C606 40 PINS CONNECTOR COL4 100pF EXT_MIC EXT_MIC J601-1 VS_CS J601-2 VS_CS SWB+...
  • Page 59 Professional Radio GP Series Power Distribution and Controller Service Information Issue: July 2007...
  • Page 60 Accordingly, any copyrighted Motorola computer programs contained in the Motorola products described in this manual may not be copied or reproduced in any manner without the express written permission of Motorola. Furthermore, the purchase of Motorola...
  • Page 61 Table of Contents Chapter 1 THEORY OF OPERATION 1.0 Overview ......................1-1 2.0 Radio Power Distribution ..................1-1 3.0 Controller Circuits ....................1-2 3.1 Controller Architecture..................1-2 3.2 MCU Digital Architecture ................1-2 3.3 Real Time Clock .....................1-3 3.4 ModB/Vstby Supply ..................1-4 3.5 Audio/Signaling Architecture ................1-4 Chapter 2 TROUBLESHOOTING CHARTS 1.0 UHF/ UHF2 Controller..................2-1...
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  • Page 63: Chapter 1 Theory Of Operation

    Chapter 1 THEORY OF OPERATION Overview This Chapter provides a detailed theory of operation for the power distribution and controller circuits in the radio. The components for these circuits are contained on the Main Board. Refer to the RF sections of this manual for the component location details and the parts lists for these circuits. Radio Power Distribution Accessories 20 pin Connector...

  • Page 64: Controller Circuits

    THEORY OF OPERATION Controller Circuits Controller Architecture The controller board is the central interface between the various subsystems of the radio. It is separated into MCU digital and audio/signalling architectures as shown in Figure 1-2. External Microphone To Synthesizer Internal Microphone 16.8 MHz Reference Clock...

  • Page 65: Real Time Clock

    Controller Circuits Table 1-1 Radio Memory Requirements EXT RAM EEPROM RADIO ROM (KB) (KB) (KB) Conventional MDC GP140 128K Conventional 5 Tone GP320, GP330, 512K GP340 Conventional 5 Tone GP360, GP380 512K Privacy Plus GP240, GP280 512K SmartZone GP540, GP580 512K GP640, GP680 512K...

  • Page 66: Modb/Vstby Supply

    THEORY OF OPERATION As the RTC module is powered separately from the processor Vdd, the RTC is kept active through the ModB / Vstby pin which provides the Lithium battery back-up power when the radio is switched off. A MOSFET Q416 switches in the LiO supply when Vdd is removed. Q416 also provides isolation from BOOT_CTRL function in the event of radio program flashing.

  • Page 67: All Models Except Those With Pcb 8486458Z03

    Chapter 2 TROUBLESHOOTING CHARTS UHF/ UHF2/ 800MHz Controller All models except those with PCB 8486458Z03 MCU Check Press PTT. Red LED does not Before replacing light up Power Up Not able to pro- MCU, check SPI Alert Tone gram RF Board AUDIO Audio at clock, SPI data,...

  • Page 68: Models With Pcb 8486458Z03

    TROUBLESHOOTING CHARTS Models with PCB 8486458Z03 MCU Check Press PTT. Red LED does not Before replacing light up Not able to pro- Power Up MCU, check SPI gram RF Board AUDIO Audio at Alert Tone clock, SPI data, J403 Audio AudioPA and RF IC select at Pin 2 &...
  • Page 69 Chapter 3 CONTROLLER SCHEMATICS Allocation of Schematics and Circuit Boards The Controller circuits are contained on the printed circuit board (PCB) containing the RF circuits. This Chapter shows the schematics for the Controller circuits only, refer to the relevant RF section for details of the related RF circuits, the PCB component layouts and the Parts Lists.
  • Page 70 CONTROLLER SCHEMATICS Table 3-2 Schematics - Set 2 PCBs : 8480450Z13/14 8480587Z05 8415234H01 8415234H02 8415234H05 8485641Z06 UHF2 8415235H01 UHF2 8415235H03 UHF2 SCHEMATICS Overall Controller Schematic Page 3-13 ASFIC ON_OFF Page 3-14 Microprocessor Page 3-15 Memory Page 3-16 Interface Page 3-16 Audio Power Amplifer Page 3-17 Voice Storage Schematic Diagram...
  • Page 71 Allocation of Schematics and Circuit Boards Table 3-4 Schematics - Set 4 PCBs : 8416256H02 SCHEMATICS Overall Controller Schematic Page 3-25 ASFIC ON_OFF Page 3-26 Microprocessor Page 3-27 Memory Page 3-28 Interface Page 3-29 Audio Power Amplifer Page 3-30 Table 3-5 Schematics - Set 5 PCBs : 8486743Z02 SCHEMATICS...
  • Page 72 CONTROLLER SCHEMATICS THIS PAGE INTENTIONALLY LEFT BLANK...
  • Page 73 Controller - Set 1 (PCB 8480450Z03 (UHF), 8485641Z02 (UHF2), 8480587Z01/Z03 (UHF), 8485677Z01 (UHF2 GP1280), 8485677/Z02 (UHF2), 8480641Z03/Z09/Z10 (800 MHz) Controller - Set 1 (PCB 8480450Z03 (UHF), 8485641Z02 (UHF2), 8480587Z01/Z03 (UHF), 8485677Z01 (UHF2 GP1280), 8485677/Z02 (UHF2), 8480641Z03/Z09/Z10 (800 MHz) TO/FROM RF RED_LED IF_RED_LED_CTRL RED_LED...
  • Page 74 Controller - Set 1 (PCB 8480450Z03 (UHF), 8485641Z02 (UHF2), 8480587Z01/Z03 (UHF), 8485677Z01 (UHF2 GP1280), 8485677/Z02 4V_3.3V R405 R402 SWB+ TP410 Vddd Q400 BATT_CODE Vddd TP406 C405 UNSWB+ 100pF C401 C400 800 MHz only 0.1uF R401 100pF R406 R427 2.7K U400 LP2951ACMM-3.3 C402 C403...
  • Page 75 Controller - Set 1 (PCB 8480450Z03 (UHF), 8485641Z02 (UHF2), 8480587Z01/Z03 (UHF), 8485677Z01 (UHF2 GP1280), 8485677/Z02 (UHF2), 8480641Z03/Z09/Z10 (800 MHz) 4V_3.3V R405 R402 SWB+ Vddd Q400 TP406 BATT_CODE Vddd UNSWB+ C401 C400 R401 0.1uF .01uF R406 R427 2.7K U400 C402 LP2951ACMM-3.3 0.1uF C403 CR412...
  • Page 76 Controller - Set 1 (PCB 8480450Z03 (UHF), 8485641Z02 (UHF2), 8480587Z01/Z03 (UHF), 8485677Z01 (UHF2 GP1280), 8485677/Z02 FLASH ROM FL0830279-O Controller Memory...
  • Page 77 Controller - Set 1 (PCB 8480450Z03 (UHF), 8485641Z02 (UHF2), 8480587Z01/Z03 (UHF), 8485677Z01 (UHF2 GP1280), 8485677/Z02 (UHF2), 8480641Z03/Z09/Z10 (800 MHz) C466 100pF C458 100pF C404 800 MHz only 100pF C459 100pF R481 C526 C527 100pF 100pF J400 40 - PIND CONNECTOR EXT_MIC J400-40 EXT_MIC...
  • Page 78 3-10 Controller - Set 1 (PCB 8480450Z03 (UHF), 8485641Z02 (UHF2), 8480587Z01/Z03 (UHF), 8485677Z01 (UHF2 GP1280), 8485677/Z02 UNSWB+ OPT_SEL2 C475 SWB+ OPT_SEL1 VR445 VR446 VR447 10uF 10.0V 10.0V 10.0V VR449 10.0V VR448 R473 10.0V R450 J403 U420 C442 C471 20 PIN CONNECTOR R499 C472 R423...
  • Page 79 Controller - Set 1 (PCB 8480450Z03 (UHF), 8485641Z02 (UHF2), 8480587Z01/Z03 (UHF), 8485677Z01 (UHF2 GP1280), 8485677/Z02 (UHF2), 8480641Z03/Z09/Z10 (800 MHz) 3-11 Vddd CR700 3.299V C703 100pF C701 C702 0.1uF IF_CLK_1_VOICE XCLK SCLK C704 0.1uF ANA_NEG AUDOUT ANA_POS IF_VS_CS_1_VOICE Vddd VS_CS IF_DATA_1_VOICE MOSI U700 DATA...
  • Page 80 3-12 Controller - Set 1 (PCB 8480450Z03 (UHF), 8485641Z02 (UHF2), 8480587Z01/Z03 (UHF), 8485677Z01 (UHF2 GP1280), 8485677/Z02 THIS PAGE INTENTIONALLY LEFT BLANK...
  • Page 81 Controller - Set 2 (PCB 8480450Z13/14 (UHF), 8480587Z05 (UHF), 8485641Z06 (UHF2), 8415234H01/H02/H05 (UHF), 8415235H01/H03 (UHF2) 3-13 Controller - Set 2 (PCB 8480450Z13/14 (UHF), 8480587Z05 (UHF), 8485641Z06 (UHF2), 8415234H01/H02/H05 (UHF), 8415235H01/H03 (UHF2) TO/FROM RF RED_LED IF_RED_LED_CTRL RED_LED GREEN_LED IF_GREEN_LED_CTRL GREEN_LED IF_SB1_CTRL AUDIO IF_SB2_CTRL INT_MIC...
  • Page 82 3-14 Controller - Set 2 (PCB 8480450Z13/14 (UHF), 8480587Z05 (UHF), 8485641Z06 (UHF2), 8415234H01/H02/H05 (UHF), 8415235H01/ 4V_3.3V R405 R402 SWB+ TP410 Q400 Vddd BATT_CODE TP406 Vddd C405 100pF UNSWB+ C401 C400 R401 800 MHz only 0.1uF .01uF R406 R427 2.7K U400 C402 C403 LP2951ACMM-3.3...
  • Page 83 Controller - Set 2 (PCB 8480450Z13/14 (UHF), 8480587Z05 (UHF), 8485641Z06 (UHF2), 8415234H01/H02/H05 (UHF), 8415235H01/H03 (UHF2) 3-15 Vddd F1200 R409 R457 SCI_TX SCI_RX TP401 TP402 TEST_POINT TEST_POINT R418 UNSWB+ Vddd Vddd Vddd R437 C431 C449 C453 C423 100pF 100pF 100pF 100pF L411 U410 390nH...
  • Page 84 3-16 Controller - Set 2 (PCB 8480450Z13/14 (UHF), 8480587Z05 (UHF), 8485641Z06 (UHF2), 8415234H01/H02/H05 (UHF), 8415235H01/ ZMY0130089-B ZMY0130087-B Controller Memory Controller Interface...
  • Page 85 Controller - Set 2 (PCB 8480450Z13/14 (UHF), 8480587Z05 (UHF), 8485641Z06 (UHF2), 8415234H01/H02/H05 (UHF), 8415235H01/H03 (UHF2) 3-17 UNSWB+ OPT_SEL2 C475 SWB+ OPT_SEL1 VR446 VR447 VR445 10uF 10.0V 10.0V 10.0V VR449 10.0V VR448 R473 10.0V R450 J403 U420 C442 C471 20 PIN CONNECTOR R499 C472 R423...
  • Page 86 3-18 Controller - Set 2 (PCB 8480450Z13/14 (UHF), 8480587Z05 (UHF), 8485641Z06 (UHF2), 8415234H01/H02/H05 (UHF), 8415235H01/ Vddd CR700 3.299V C703 100pF C701 C702 0.1uF IF_CLK_1_VOICE XCLK SCLK C704 0.1uF ANA_NEG AUDOUT ANA_POS IF_VS_CS_1_VOICE Vddd VS_CS IF_DATA_1_VOICE MOSI U700 DATA MISO C707 C706 ISD33000 0.1uF...
  • Page 87 Controller - Set 3 (PCB 8486458Z03 (UHF), 8486686Z02 (UHF2) 3-19 Controller - Set 3 (PCB 8486458Z03 (UHF), 8486686Z02 (UHF2) TO/FROM RF RED_LED IF_RED_LED_CTRL RED_LED GREEN_LED IF_GREEN_LED_CTRL GREEN_LED IF_SB1_CTRL AUDIO IF_SB2_CTRL INT_MIC IF_SB3_CTRL 4V_3.3V 4V_3.3V EMER IF_EMER_CTRL EMER EXT_MIC RTA0 IF_RTA0_CTRL Vddd Vddd RTA0...
  • Page 88 3-20 Controller - Set 3 (PCB 8486458Z03 (UHF), 8486686Z02 (UHF2) 4V_3.3V R405 R402 1MEG 1MEG SWB+ Not placed Not placed TP410 Q400 TP406 BATT_CODE Vddd UNSWB+ C405 Vddd C401 C400 800 MHz only 0.1uF R401 .01uF 100pF R406 R427 2.7K U400 LP2951ACMM-3.3 C402...
  • Page 89 Controller - Set 3 (PCB 8486458Z03 (UHF), 8486686Z02 (UHF2) 3-21 Vddd F1200 R409 R457 SCI_TX SCI_RX TP401 TP402 TEST_POINT TEST_POINT R418 UNSWB+ Vddd Vddd Vddd R437 C431 C449 C453 C423 100pF 100pF 100pF 100pF L411 U410 390nH ILC7062CM-33 L410 3.3V 390nH C456 R411...
  • Page 90 3-22 Controller - Set 3 (PCB 8486458Z03 (UHF), 8486686Z02 (UHF2) ZMY0130089-B ZMY0130087-B Controller Memory Controller Interface...
  • Page 91 Controller - Set 3 (PCB 8486458Z03 (UHF), 8486686Z02 (UHF2) 3-23 UNSWB+ OPT_SEL2 C475 SWB+ OPT_SEL1 VR447 VR445 VR446 10uF 10.0V 10.0V VR449 10.0V 10.0V VR448 R473 10.0V R450 J403 U420 C471 C442 20 PIN CONNECTOR R499 C472 R423 TDA8547 0.1uF 100pF C473 J403-1...
  • Page 92 3-24 Controller - Set 3 (PCB 8486458Z03 (UHF), 8486686Z02 (UHF2) THIS PAGE INTENTIONALLY LEFT BLANK...

  • Page 93: Controller - Set 4 (Pcb 8416256H02)

    Controller - Set 4 (PCB 8416256H02) UHF 3-25 Controller - Set 4 (PCB 8416256H02) UHF TO/FROM RF IF_RED_LED_CTRL RED_LED RED_LED IF_GREEN_LED_CTRL GREEN_LED GREEN_LED IF_SB1_CTRL AUDIO IF_SB2_CTRL IF_SB3_CTRL INT_MIC 4V_3.3V 4V_3.3V IF_EMER_CTRL EMER EMER IF_RTA0_CTRL EXT_MIC RTA0 RTA0 Vddd Vddd IF_RTA1_CTRL RTA1 RTA1 IF_RTA2_CTRL...
  • Page 94 3-26 Controller - Set 4 (PCB 8416256H02) UHF V S S V D D G N D V C C Controller ASFIC / ON-OFF...
  • Page 95 Controller - Set 4 (PCB 8416256H02) UHF 3-27 Vddd F1200 R457 R409 SCI_TX SCI_RX TP401 TP402 TEST_POINT TEST_POINT R418 UNSWB+ Vddd Vddd Vddd R437 C431 C449 C453 C423 100pF 100pF 100pF 100pF L411 390nH U410 L410 ILC7062CM-33 3.3V 390nH C456 R411 VOUT 100pF...
  • Page 96 3-28 Controller - Set 4 (PCB 8416256H02) UHF Controller Memory Schematic Diagram...
  • Page 97 Controller - Set 4 (PCB 8416256H02) UHF 3-29 C466 100pF C458 C404 100pF 800 MHz onl y 100pF C459 100pF R481 C526 C527 100pF 100pF J400 40-PINS CONNECTOR EXT_MI C J400-40 EXT_MIC VS_CS J400-39 VS_CS SWB+ J400-38 SW_B+ E400 Vddd J400-37 Vddd VS_AUDSEL...
  • Page 98 3-30 Controller - Set 4 (PCB 8416256H02) UHF Controller Audio Power Amplifier Schematic Diagram...

  • Page 99: Controller - Set 5 (Pcb 8486743Z02)

    Controller - Set 5 (PCB 8486743Z02) UHF 3-31 Controller - Set 5 (PCB 8486743Z02) UHF Overall Controller Schematic Diagram...
  • Page 100 3-32 Controller - Set 5 (PCB 8486743Z02) UHF Intentionally left blank Controller ASFIC/ON_OFF Schematic Diagram...
  • Page 101 Controller - Set 5 (PCB 8486743Z02) UHF 3-33 Controller Micro Processor Schematic Diagram...
  • Page 102 3-34 Controller - Set 5 (PCB 8486743Z02) UHF Controller Interface Schematic Diagram...
  • Page 103 Controller - Set 5 (PCB 8486743Z02) UHF 3-35 Controller Audio Power Amplifier Schematic Diagram...
  • Page 104 3-36 Controller - Set 5 (PCB 8486743Z02) UHF THIS PAGE INTENTIONALLY LEFT BLANK...
  • Page 105 Controller Schematics - Set 6 (PCB 8415234H05) Narrow Band 3-37 Controller Schematics - Set 6 (PCB 8415234H05) Narrow Band TO/FROM RF RED_LED IF_RED_LED_CTRL RED_LED IF_GREEN_LED_CTRL GREEN_LED GREEN_LED IF_SB1_CTRL AUDIO IF_SB2_CTRL IF_SB3_CTRL 4V_3.3V 4V_3.3V INT_MIC IF_EMER_CTRL EMER EMER Vddd EXT_MIC RTA0 IF_ RTA0_CTR L Vddd RTA0...
  • Page 106 3-38 Controller Schematics - Set 6 (PCB 8415234H05) Narrow Band 4V_3.3V R402 R405 TP410 SWB+ Vddd Q400 TP406 BATT_CODE Vddd UNSWB+ C405 C401 C400 0.1uF 800MHz only R401 .01uF 100pF R406 R427 2.7K U400 LP2951ACMM-3. 3 C402 C403 CR412 0.1uF 2.2uF Vdda INPUT...
  • Page 107 Controller Schematics - Set 6 (PCB 8415234H05) Narrow Band 3-39 Vddd F1200 R457 R409 SCI_ TX SCI_RX TP402 TP401 TEST_POINT TEST_POINT R418 UNSWB+ Vddd Vddd Vddd R437 C431 C449 C453 C423 100pF 100pF 100pF 100pF L411 390nH U410 3.3V ILC7062CM-3 3 L410 390nH R411...
  • Page 108 3-40 Controller Schematics - Set 6 (PCB 8415234H05) Narrow Band THIS PAGE INTENTIONALLY LEFT BLANK...
  • Page 109 Professional Radio GP Series UHF (403 - 470MHz) Narrow Band (450 - 470MHz) Service Information Issue: July 2007...
  • Page 110 Accordingly, any copyrighted Motorola computer programs contained in the Motorola products described in this manual may not be copied or reproduced in any manner without the express written permission of Motorola. Furthermore, the purchase of Motorola...
  • Page 111 Table of Contents Chapter 1 THEORY OF OPERATION 1.0 Introduction ......................1-1 2.0 UHF Transmitter ....................1-1 2.1 Power Amplifier ....................1-1 2.2 Antenna Switch....................1-2 2.3 Harmonic Filter ....................1-2 2.4 Antenna Matching Network ................1-2 2.5 Power Control Integrated Circuit (PCIC) ............1-2 3.0 UHF Transmitter (for ATEX specified models).............1-3 3.1 General......................1-3 4.0 UHF Receiver (All models except those with PCB 8486458Z03 &...
  • Page 112 Chapter 2 TROUBLESHOOTING CHARTS 1.0 Troubleshooting Flow Chart for Controller............2-1 2.0 Troubleshooting Flow Chart for Receiver (All models except those with PCB 8486458Z03) (Sheet 1 of 2)................. 2-2 3.0 Troubleshooting Flow Chart for Receiver (All models except those with PCB 8486458Z03)(Sheet 2 of 2)..................

  • Page 113: Chapter 1 Theory Of Operation

    Chapter 1 THEORY OF OPERATION Introduction This Chapter provides a detailed theory of operation for the UHF circuits in the radio. For details of the theory of operation and trouble shooting for the the associated Controller circuits refer to the Controller Section of this manual.

  • Page 114: Antenna Switch

    THEORY OF OPERATION The LDMOS PA is capable of supplying an output power of 7W with an input signal of 0.3W. The current drain is typically 1300mA while operating in the frequency range of 403-470MHz. The power output can be varied by changing the bias voltage. Antenna Switch The antenna switch circuit consists of two pin diodes (CR101 and CR102), a pi network (C107, L104 and C106) and, in 403-470 Mhz, two current limiting resistors (R101 and R170).

  • Page 115: General

    Transmitter (for ATEX specified models) Transmitter (for ATEX specified models) P C I C Antenna Vcontrol Vcontrol Jack Antenna Switch/ From VCO PA-Final Harmonic Filter/ Driver Stage Matching Network Figure 1-2: Transmitter Block Diagram General (Refer to Figure 6-1) The UHF transmitter contains five basic circuits: 1.
  • Page 116 THEORY OF OPERATION 3.1.2 Antenna Switch The antenna switch circuit consists of two PIN diodes (CR101 and CR102), a pi network (C107, L104 and C106). In the transmit mode, B+ at PCIC (U102) pin 23 will go low and turn on Q111 where a B+ bias is applied to the antenna switch circuit to bias the diodes "on".

  • Page 117: Uhf Receiver (All Models Except Those With Pcb 8486458Z03 & 8486743Z02)1-5

    UHF Receiver (all models except those with PCB 8486458Z03, 8486743Z02) UHF Receiver (all models except those with PCB 8486458Z03, 8486743Z02) The UHF receiver consists of a front end, back end, and automatic gain control circuits. A block diagram of the receiver is shown in Figure 2-2. Detailed descriptions of these features are contained in the paragraphs that follow.

  • Page 118: Receiver Back-End

    THEORY OF OPERATION The output of the bandpass filter is coupled to the RF amplifier transistor Q301 via C307. After being amplified by the RF amplifier, the RF signal is further filtered by a second varactor tuned bandpass filter, consisting of L306, L307, C313, C317, CR304 and CR305. Both the pre and post-RF amplifier varactor tuned filters have similar responses.

  • Page 119: Automatic Gain Control (Agc)

    UHF Receiver (all models except those with PCB 8486458Z03, 8486743Z02) Automatic Gain Control (AGC) (Refer to the UHF Receiver Front End and Receiver Back End schematic diagrams) The front end automatic gain control circuit provides automatic reduction of gain, of the front end RF amplifier via feedback.
  • Page 120 THEORY OF OPERATION Receiver (for ATEX specified models) Antenna Pin Diode Varactor Varactor Antenna Crystal RF Amp Mixer IF Amp Tuned Filter Tuned Filter Switch RF Jack Filter First LO from VCO Control Voltage from ASFIC U301 Demodulator Limiter Recovered Audio RSSI 455kHz Filter...
  • Page 121 Receiver (for ATEX specified models) The output of the post-RF amplifier filter which is connected to the passive double balanced mixer consists of T301, T302 and CR306. Matching of the filter to the mixer is provided by C381. After mixing with the first LO signal from the voltage controlled oscillator (VCO) using low side injection, the RF signal is down-converted to the 44.85 MHz IF signal.

  • Page 122: Uhf Receiver (Models With Pcb 8486458Z03)

    1-10 THEORY OF OPERATION UHF Receiver (Models with PCB 8486458Z03) The UHF receiver consists of a front end, back end, and automatic gain control circuits. A block diagram of the receiver is shown in Figure 2-3. Detailed descriptions of these features are contained in the paragraphs that follow.

  • Page 123: Receiver Back-End

    UHF Receiver (Models with PCB 8486458Z03) 1-11 The output of the bandpass filter is coupled to the RF amplifier transistor Q301 via C307. After being amplified by the RF amplifier, the RF signal is further filtered by a second varactor tuned bandpass filter, consisting of L306, L307, C313, C317, CR304 and CR305.

  • Page 124: Frequency Generation Circuit

    1-12 THEORY OF OPERATION Frequency Generation Circuit (Refer to Figure 2-4 and the UHF Frequency Synthesizer schematic diagram) The frequency generation circuit, shown in Figure 2-4, is composed of Fractional-N synthesizer U201 and VCO/Buffer IC U241. Designed in conjunction to maximize compatibility, the two ICs provide many of the functions that normally require additional circuitry.

  • Page 125: Synthesizer

    Frequency Generation Circuit 1-13 Synthesizer (Refer to Figure 2-5 and the UHF Synthesizer schematic diagram) The Fractional-N synthesizer, shown in Figure 2-5, uses a 16.8MHz crystal (FL201) to provide a reference for the system. The LVFractN IC (U201) further divides this to 2.1MHz, 2.225MHz, and 2.4MHz to be used as reference frequencies.

  • Page 126: Voltage Controlled Oscillator (Vco)

    1-14 THEORY OF OPERATION Voltage Controlled Oscillator (VCO) (Refer to Figure 2-6 and the UHF Voltage Controlled Oscillator schematic diagram) The VCOB IC (U241), shown in Figure 2-6, in conjunction with the Fractional-N synthesizer (U201) generates RF in both the receive and the transmit modes of operation. The TRB line (U241 pin 19) determines which oscillator and buffer are enabled.
  • Page 127 Frequency Generation Circuit 1-15 Table 1-1 Level Shifter Logic Desired AUX 4 AUX 3 Mode High (@3.2V) High (@4.8V) High Battery Saver Hi-Z/Float (@2.5V) In the receive mode, U241 pin 19 is low or grounded. This activates the receive VCO by enabling the receive oscillator and the receive buffer of U241.

  • Page 128: Controller Information

    1-16 THEORY OF OPERATION Controller Information Radio Power Distribution Accessories 20 pin Connector Keypad/Option Board Prime Expansion Board Switching Reg. Audio PA Int/Ext Vdd 4.0V/3.3V Vdda UNSWB+ Vdda Reg. Fuse SWB+ 7.5V Vddd Vddd Battery Reg. FRACTN ASFIC_CMP MCU Micro P, ROM LVZIF Driver VCOBIC...

  • Page 129: Controller Board

    The controller board is the central interface between the various subsytems of the radio. It is separated into digital and audio architectures. The digital portion consists of a special Motorola microcontroller (HC11FL0). The audio power amplifier (Audio PA) and audio/signalling/filter/ companding IC (ASFIC_CMP) form the backbone of the audio/signalling architecture.
  • Page 130 1-18 THEORY OF OPERATION 8.2.2 Digital Architecture MCU Configuration There is one common MCU architecture for low-tier as well as for the high-tier products. It covers the Conventional and Trunking portables. An open architecture system with the new HC11FL0 as the processor is used.
  • Page 131 Controller Information 1-19 ModB/Vstby Supply Under various conditions, the supply to the ModB/Vstby would vary. Table 7-2 shows these conditions and circuits in operation. Table 1-2: ModB/Vstby Supply Modes Condition Circuit Operation Vdd supply voltage via CR411 Radio Off • Vdd turned off •...

  • Page 132: Voice Storage (Gp1280 Only)

    1-20 THEORY OF OPERATION Voice Storage (GP1280 Only) (Refer to Figure 2-7 and the UHF Voice Storage schematic diagram) The Voice Storage feature is offered as standard in the GP1280 and as an Option board for GP340/GP360/GP380, GP140and GP640/GP680 models. The Voice Storage feature enables users to: ■...
  • Page 133 Voice Storage (GP1280 Only) 1-21 Audio routing to the Voice Storage circuitry during receive message recording, message playback, personal memo recording and voice prompt transmit over the air are as follows: Received Message Recording The receive audio is tapped from the Rx_Aud_Rtn pin of the ASFIC_CMP during receive mode. Message Playback Message playback is via the FLAT_RX_SND pin of ASFIC_CMP.
  • Page 134 1-22 THEORY OF OPERATION THIS PAGE INTENTIONALLY LEFT BLANK...

  • Page 135: Troubleshooting Flow Chart For Controller

    Chapter 2 TROUBLESHOOTING CHARTS Troubleshooting Charts MCU Check Press PTT. Red LED does not Before replacing light up Power Up Not able to pro- MCU, check SPI Alert Tone gram RF Board AUDIO Audio at clock, SPI data, J403 Audio AudioPA and RF IC select at Pin 2 &...

  • Page 136: Troubleshooting Flow Chart For Receiver (All Models Except Those With Pcb 8486458Z03) (Sheet 1 Of 2)

    TROUBLESHOOTING CHARTS Troubleshooting Flow Chart for Receiver (All models except those with PCB 8486458Z03) (Sheet 1 of 2) START Bad SINAD Bad 20dB Quieting No Recovered Audio udio Check Controller at pin 27 of U301? Spray of inject 1st IF into XTAL Filter IF Freq: 45.1MHz Check Q320 bias...
  • Page 137 Troubleshooting Flow Chart for Receiver (All models except those with PCB 8486458Z03) (Sheet 2 of 2) Troubleshooting Flow Chart for Receiver (All models except those with PCB 8486458Z03) (Sheet 2 of 2) Inject RF into J101 Q302 Trace IF signal collector OK? IF Signal from L311 to...

  • Page 138: Troubleshooting Flow Chart For Receiver (Models With Pcb 8486458Z03) (Sheet 1 Of 2)

    TROUBLESHOOTING CHARTS Troubleshooting Flow Chart for Receiver (Models with PCB 8486458Z03) (Sheet 1 of 2) START Bad SINAD Bad 20dB Quieting No Recovered Audio Check Controller Audio at pin 8 of U301? Spray or inject 1st IF 44.85 MHz into XTAL Filter Check Q302 bias circuitry for faults.

  • Page 139: Troubleshooting Flow Chart For Receiver (Models With Pcb 8486458Z03) (Sheet 2 Of 2)

    Troubleshooting Flow Chart for Receiver (Models with PCB 8486458Z03) (Sheet 2 of 2) Troubleshooting Flow Chart for Receiver (Models with PCB 8486458Z03) (Sheet 2 of 2) Inject RF into J101 Trace IF signal Q302 collec- from L311 to IF Signal at tor OK? Q302.

  • Page 140: Troubleshooting Flow Chart For Transmitter

    TROUBLESHOOTING CHARTS Troubleshooting Flow Chart for Transmitter START No Power Is There B+ Bias for Check Q111 Ant switch CR101 Is Control Voltage Is Current Check PCIC High or Low at C119 High 1. Check Pin Diodes Check Drive to 2.

  • Page 141: Troubleshooting Flow Chart For Synthesizer

    Troubleshooting Flow Chart for Synthesizer Troubleshooting Flow Chart for Synthesizer 3.3V at Check U248, Start U201 pins 5, L201 & L202 20, 34& Check CR201, Visual U210, U211, Correct check of the C258, C259 & Problem Board OK? C228 Is U201 16.8MHz 16.8MHz at pin 6 of...

  • Page 142: Troubleshooting Flow Chart For Vco

    TROUBLESHOOTING CHARTS Troubleshooting Flow Chart for VCO START No LO? U241 Check R245 TRB = Pin 10 for dry joint 5V? @U241 Carrier? >1V? or faulty Pin 19 VCO OK L253 Change Open L253 Circuit? AUX 3 Check High? R260 Change U241 Check U201...

  • Page 143: Troubleshooting Flow Chart For Receive Message/Personal Memo Recording

    Troubleshooting Flow Chart for Receive Message/Personal Memo Recording Troubleshooting Flow Chart for Receive Message/Personal Memo Recording Cannot Receive Message Personal Memo Recording Check menu Turn on Check Mic I/P at whether record “Record Incoming J403-18 any audio? incoming messages Call” turned on Check Spkr/Mic Flex Connection...

  • Page 144: Troubleshooting Flow Chart For Message Playback

    2-10 TROUBLESHOOTING CHARTS 10.0 Troubleshooting Flow Chart for Message Playback Cannot Playback Message Check keypad/ Assemble controller flex properly interconnect ok? Change U700 or Voice Storage Audio at J400-35? Option Board Change U404...

  • Page 145: Allocation Of Schematics And Circuit Boards

    Chapter. The Voice Storage facility may be fitted to other radios in the GP Series as an option board; reference must be made to the Option Board manual in this case. The Voice Storage schematic and the related PCBs are shown in Tables 3-2, 3-3 and 3-4 below.
  • Page 146 UHF PCB/SCHEMATICS/PARTS LISTS Table 3-2 UHF GP1280 Diagrams and Parts Lists PCB : 8480587Z01 Main Board Top Side Page 3-21 Main Board Bottom Side Page 3-22 SCHEMATICS Controls and Switches Page 3-9 Receiver Front End Page 3-10 Receiver Back End Page 3-11 Synthesizer Page 3-12...
  • Page 147 Allocation of Schematics and Circuit Boards Table 3-4 UHF GP1280 Diagrams and Parts Lists PCB : 8480587Z05 Main Board Top Side Page 3-39 Main Board Bottom Side Page 3-40 SCHEMATICS Controls and Switches Page 3-27 Receiver Front End Page 3-28 Receiver Back End Page 3-29 Synthesizer...
  • Page 148 UHF PCB/SCHEMATICS/PARTS LISTS Table 3-7 UHF Diagrams and Parts Lists PCB : 8415234H01 Main Board Top Side Page 3-75 Main Board Bottom Side Page 3-76 SCHEMATICS Controls and Switches Page 3-77 Receiver Front End Page 3-78 Receiver Back End Page 3-79 Synthesizer Page 3-80 Voltage Controlled Oscillator...
  • Page 149 Allocation of Schematics and Circuit Boards Table 3-10 UHF Diagrams and Parts Lists PCB : 8415234H08 Main Board Top Side Page 3-127 Main Board Bottom Side Page 3-128 SCHEMATICS Receiver Front End Page 3-129 Receiver Back End Page 3-130 Synthesizer Page 3-131 Voltage Controlled Oscillator Page 3-132...
  • Page 150 UHF PCB/SCHEMATICS/PARTS LISTS THIS PAGE INTENTIONALLY LEFT BLANK...

  • Page 151: Uhf Pcb 8480450Z03 Schematics

    UHF PCB 8480450Z03 Schematics UHF PCB 8480450Z03 Schematics SH400 R410 E407 E409 PB504 R437 PB503 PB502 PB501 VR440 C521 SH323 R300 R352 C397 FL201 RT301 R314 SH321 R321 CR310 FL301 C362 VR501 C328 R335 C363 C325 U405 L332 TP201 R338 L325 R506 J400...
  • Page 152 UHF PCB 8480450Z03 Schematics C522 VR442 C523 SH402 E405 C437 L505 SH322 E404 L330 C359 E406 C338 S502 C358 C357 E402 C390 R350 C344 R344 C383 C360 C346 R311 R415 C361 R312 C433 C343 C431 C263 C208 SH202 L261 C204 C264 C466 C223...
  • Page 153 UHF PCB 8480450Z03 Schematics B501 L505 BATTERY_CONTACT 390nH RADIO_CODE 2 DATA UNSWB+ BATT_CODE 1 NEG BATT + F501 3 POS S502 CONN_J SWITCH BATT Ð MECH_SWB+ LI_ION B503 VR506 B504 C502 CR501 VR439 C503 0.47uF 6.8V 100pF Vdda R507 Vdda C505 6.8V VR501...
  • Page 154 3-10 UHF PCB 8480450Z03 Schematics DACRx C322 82pF R342 -65.5dBm@45.1MHz 100K L310 150nH R310 C315 R308 R305 C314 100pF 0.1uF R304 R309 C380 .01uF L304 C321 -63.4dBm@403.355MHz CR306 180nH 100pF T301 C306 XFMR -54.4dBm@403.355MHz C309 C308 R306 R307 -60.5dBm@469.985MHz 100pF 100pF 100K 100K...
  • Page 155 UHF PCB 8480450Z03 Schematics 3-11 L331 R343 2.20uH Vdd_FILTERED Vdda C382 (SOURCE) 10uF DEMOD R350 C344 C347 C346 C345 C348 100K 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF C390 100pF C329 0.1uF C343 0.22uF R344 R345 R355 C383 100pF 2.628V 3.185V C342 C357 C384 0.22uF...
  • Page 156 3-12 UHF PCB 8480450Z03 Schematics U211 U210 TC7ST04FU C296 TC7ST04FU C265 0.1uF C257 100pF VCC 5 C258 7.697V .01uF U247 ADP3300 SWB+ C259 .01uF (SOURCE) C291 C294 CR201 100pF 10uF C293 4V_3.3V L202 0.47uF U248 2.2uH LP2980 L203 C277 C278 2.2uH C229 100pF...
  • Page 157 UHF PCB 8480450Z03 Schematics 3-13 C281 R245 100pF R242 C250 L243 C276 C286 C285 7.5pF 4.567V (Rx) 2.2uF 0.1uF 100pF RESONATOR C246 L281 L273 R241 100pF 4.613V (Tx) 390nH 33nH C242 7.5pF C272 C273 0.1uF C243 L271 L242 R244 7.5pF 68nH 220nH RX_INJ...
  • Page 158 3-14 UHF PCB 8480450Z03 Schematics E101 BEAD R102 0.075 UNSWB+ L107 C114 C123 33.47nH 100pF 10uF C172 UNSWB+ 100pF R106 C109 L106 100pF 7.66nH Microstrip Microstrip R172 TX_OUT C121 C160 L108 L109 L112 100pF 100pF Q110 Microstrip 4.22nH 11.03nH 390nH C118 100pF C113...
  • Page 159 UHF PCB 8480450Z03 Schematics 3-15 ANT_BIAS C108 SH100 100pF SHIELD L105 390nH TX_OUT HF SHIELD CR101 L102 L101 L104 19.61nH 19.61nH 19.61nH RX_IN CR102 C102 C101 C103 C104 C106 C107 6.2pF 4.7pF 100pF 10pF 6.2pF 3.3pF R170 C175 RF_JACK 20pF R101 ZMY0130486-O UHF (403-470 MHz) Voice Storage Circuit...
  • Page 160 3-16 UHF PCB 8480450Z03 Schematics THIS PAGE INTENTIONALLY LEFT BLANK...

  • Page 161: Uhf Pcb 8480450Z03/8480587Z01 Parts List

    UHF PCB 8480450Z03 / PCB 8480587Z01 Parts List 3-17 UHF PCB 8480450Z03 / Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description PCB 8480587Z01 Parts List Part No. Part No. Part No. Circuit Motorola C138 2113743N50 100pF C241 2113743N50 100pF...
  • Page 162 3-18 UHF PCB 8480450Z03 / PCB 8480587Z01 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. C351 2113743N33 20pF C422 2113743M24 100000pF C482 2113928N01 0.1uF CR440 4813833C02...
  • Page 163 UHF PCB 8480450Z03 / PCB 8480587Z01 Parts List 3-19 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. L232 2462587P25 12000nH Q111 4802245J50 Dual NPN/PNP Transistor R232 0662057M69 R328...
  • Page 164 180 (not used in GP140/ GP240) T302 2580541Z02 Balun transformer R462 0662057M98 10k (not used in GP140/ U101 5105109Z67 LDMOS driver IC * Motorola Depot Servicing only GP240) U102 5185765B28 PCIC Reference designators with an asterisk indicate R463 0662057M61 U201 5185963A27 LVFRACN Synthesizer IC...

  • Page 165: Uhf Pcb 8480587Z01 (Gp1280) Schematics

    UHF PCB 8480587Z01 (GP1280) Schematics 3-21 UHF PCB 8480587Z01 (GP1280) Schematics R410 E407 E409 PB504 PB503 PB502 PB501 R437 VR440 C521 SH323 R300 R352 C397 FL201 RT301 R314 R321 FL301 VR501 C328 C362 C363 C325 R335 C710 U405 L332 U406 R338 J400 R506...
  • Page 166 3-22 UHF PCB 8480587Z01 (GP1280) Schematics SH402 C522 C523 VR442 E405 C437 L505 E404 C359 L330 E406 R703 C709 C708 C338 S502 C358 B501 C357 E402 R350 C390 R344 C344 C383 C360 C719 R415 U301 C346 R311 U710 C361 C433 U409 R708 R312...
  • Page 167 UHF PCB 8480587Z01 (GP1280) Schematics 3-23 Vddd CR700 3.29V C703 100pF C701 C702 0.1uF IF_CLK_1_VOICE XCLK SCLK C704 0.1uF ANA_NEG AUDOUT ANA_POS IF_VS_CS_1_VOICE Vddd VS_CS IF_DATA_1_VOICE MOSI DATA U700 MISO C707 C706 ISD33000 0.1uF IF_MISO_1_VOICE MISO IF_VS_INT_1_VOICE AMCAP R708 VS_INT 560K IF_VS_RAC_1_VOICE IF_RX_AUD_RTN_1_VOICE...
  • Page 168 5102463J52 MC74HC4066 U720 5180932W01 LM2904 * Motorola Depot Servicing only Reference designators with an asterisk indicate components which are not fieldreplaceable because they need to be calibrated with specialized factory equipment after installation. Radios in which these parts have been replaced in the field will be off frequency at temperature extremes.

  • Page 169: Uhf Pcb 8480587Z03 (Gp1280) Schematics

    UHF PCB 8480587Z03 Schematics 3-25 UHF PCB 8480587Z03 Schematics R410 E407 E409 PB504 PB503 PB502 PB501 R437 VR440 SH323 C521 R300 R352 C397 FL201 RT301 R314 R321 C328 C363 VR501 C325 R335 C362 U405 R338 L325 J400 R506 R325 TP201 C385 C351 C353...
  • Page 170 3-26 UHF PCB 8480587Z03 Schematics M301 M101 M400 C522 VR442 C523 E405 C437 L505 SH701 E404 L330 C359 E406 R703 C709 C708 C338 S502 R415 C358 C357 R350 C344 C390 E402 R344 C383 C360 C438 C719 R311 C346 C361 C439 R708 C343 R312...
  • Page 171 UHF PCB 8480587Z03 Schematics 3-27 RADIO_CODE B501 L505 BATTERY_CONTACT UNSWB+ 390nH DATA BATT_CODE BATT+ F501 S502 MECH_SWB+ SWITCH BATT- LI_ION B503 TAB2 B504 C502 VR506 CR501 VR439 C503 0.47uF TAB1 6.8V 100pF R507 C505 6.8V 100pF VR501 Vdda PB501 SWITCH VR440 C521 6.8V...
  • Page 172 3-28 UHF PCB 8480587Z03 Schematics DACRx C322 82pF R342 -65.5dBm@45.1MHz 100K L310 150nH R310 C315 R308 R305 C314 100pF 0.1uF R304 R309 C380 .01uF L304 C321 -63.4dBm@403.355MHz CR306 100pF 180nH C306 T301 XFMR -54.4dBm@403.355MHz C309 C308 R306 R307 -60.5dBm@469.985MHz 100pF 100pF 100K 100K...
  • Page 173 UHF PCB 8480587Z03 Schematics 3-29 L331 R343 2.20uH Vdd_FILTERED Vdda C382 (SOURCE) 10uF DEMOD R350 C344 C347 C346 C345 C348 100K 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF C390 100pF C329 0.1uF C343 0.22uF R344 R345 R355 C383 100pF 2.628V 3.185V C342 C357 C384 0.22uF...
  • Page 174 3-30 UHF PCB 8480587Z03 Schematics U211 U210 TC7ST04FU TC7ST04FU C296 C265 0.1uF C257 100pF VCC 5 C258 7.697V .01uF U247 ADP3300 SWB+ C259 .01uF (SOURCE) C294 CR201 C291 100pF 10uF C293 4V_3.3V 0.47uF L202 U248 2.2uH LP2980 L203 C277 C278 2.2uH C229 100pF...
  • Page 175 UHF PCB 8480587Z03 Schematics 3-31 C281 R245 100pF R242 C250 L243 C276 C286 C285 7.5pF 4.567V (Rx) 2.2uF 0.1uF 100pF RESONATOR C246 L281 L273 R241 100pF 4.613V (Tx) 390nH 33nH C242 7.5pF C272 C273 0.1uF C243 L271 L242 R244 7.5pF 68nH 220nH RX_INJ...
  • Page 176 3-32 UHF PCB 8480587Z03 Schematics E101 BEAD R102 0.075 UNSWB+ L107 C114 C123 33.47nH 100pF 10uF C172 UNSWB+ 100pF R106 C109 L106 100pF 7.66nH Microstrip Microstrip R172 C121 C160 TX_OUT L108 L109 L112 100pF 100pF Q110 Microstrip 4.22nH 11.03nH 390nH C118 100pF C111...
  • Page 177 UHF PCB 8480587Z03 Schematics 3-33 ANT_BIAS C108 SH100 100pF SHIELD L105 390nH TX_OUT HF SHIELD CR101 L101 L102 L104 19.61nH 19.61nH 19.61nH RX_IN CR102 C102 C101 C106 C103 C104 C107 6.2pF 6.2pF 4.7pF 3.3pF 100pF 10pF R170 C175 RF_JACK 20pF R101 ZMY0130486-O UHF (403-470 MHz) Harmonic Filter...
  • Page 178 3-34 UHF PCB 8480587Z03 Schematics THIS PAGE INTENTIONALLY LEFT BLANK...
  • Page 179 UHF PCB 8480587Z03 Parts List 3-35 UHF PCB 8480587Z03 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Part No. Part No. Part No. Circuit Motorola Description C174 2113743N50 100pF C278 2311049A09 2.2uF C343 2113743A23 0.220uF Part No.
  • Page 180 3-36 UHF PCB 8480587Z03 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. C424 2311049A59 10uF C511 2113743N50 100pF E400- L330 2462587N64 680nH C425 2113743M24 0.1uF C512...
  • Page 181 SH323 2680553Z01 SHIELD, CRYSTAL FILTER R322 0662057N30 200K R448 0662057N33 270K SH400 2680505Z01 CNTRL MEMORY SHIELD * Motorola Depot Servicing only R324 0662057M81 R449 0662057N08 SH401 2680506Z01 ON/OFF CNTRL SHIELD Reference designators with an asterisk indicate R325 0662057M94 6.8K R450...
  • Page 182 3-38 UHF PCB 8480587Z03 Parts List THIS PAGE INTENTIONALLY LEFT BLANK...

  • Page 183: Uhf Pcb 8480587Z05 (Gp1280) Schematics

    UHF PCB 8480587Z05 Schematics 3-39 UHF PCB 8480587Z05 Schematics R410 E407 E409 PB504 PB503 PB502 PB501 R437 VR440 SH323 R300 C521 R352 C397 R334 RT301 R321 R314 VR501 C363 C362 R335 U405 C328 C325 L325 TP201 J400 R338 R506 C385 R325 C353 SH201...
  • Page 184 3-40 UHF PCB 8480587Z05 Schematics M401 M300 M100 R132 R131 SH403 R471 C415 CR105 Q410 R130 C440 C373 R109 C430 R349 C476 C133 C414 R436 C172 Q310 Q111 R172 C451 C450 R330 R331 C410 L281 J101 CR241 C409 R704 C371 C372 R716 R717 C408 CR243...
  • Page 185 UHF PCB 8480587Z05 Parts List 3-41 UHF PCB 8480587Z05 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Ref. Part No. Ref. Part No. Ref. Part No. Circuit Motorola Description Ref. Part No. C141 NOTPLACED C238 2113741F17 470pF...
  • Page 186 3-42 UHF PCB 8480587Z05 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Ref. Part No. Ref. Part No. Ref. Part No. Ref. Part No. C344 2113743M24 100000pF C4001 NOTPLACED C431 2113743N50 100pF C494 2113743N50...
  • Page 187 UHF PCB 8480587Z05 Parts List 3-43 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Ref. Part No. Ref. Part No. Ref. Part No. Ref. Part No. CR241 4805649Q13 Varactor J403 0905505Y02 20-Pin Connector L325 2480646Z20 2.20uH...
  • Page 188 3-44 UHF PCB 8480587Z05 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Ref. Part No. Ref. Part No. Ref. Part No. Ref. Part No. R254 0662057M95 7.5K R338 NOTPLACED R431 0662057N39 470K R701 0662057N05...
  • Page 189 Zener Diode 10V VR447 4802245J74 Zener Diode 10V VR448 4802245J74 Zener Diode 10V VR449 4802245J74 Zener Diode 10V VR450 4802245J75 Zener Diode 12V VR460 4802245J73 Zener Diode 6.8V VR501 4813830A18 DIODE 6.8V VR506 4802245J73 Zener Diode 6.8V * Motorola Depot Servicing only...
  • Page 190 3-46 UHF PCB 8480587Z05 Parts List THIS PAGE INTENTIONALLY LEFT BLANK...

  • Page 191: 10.0 Uhf Pcb 8480450Z13/14 Schematics

    UHF PCB 8480450Z13/14 Schematics 3-47 10.0 UHF PCB 8480450Z13/14 Schematics R410 E407 E409 PB503 PB502 PB504 PB501 R437 VR440 SH323 R300 C521 R352 C397 R334 R314 RT301 R321 VR501 C328 C363 C325 C362 R335 U405 R338 L325 TP201 J400 R506 R325 C385 C351...
  • Page 192 3-48 UHF PCB 8480450Z13/14 Schematics M301 M101 M400 C522 VR442 C523 E404 C437 L505 E406 L330 C359 S502 C338 C358 C357 R350 C344 E401 FL401 C390 R344 C383 C360 R415 C346 R311 C525 C361 C433 C449 C343 R312 C524 C431 SH202 C263 C208...
  • Page 193 UHF PCB 8480450Z13/14 Schematics 3-49 RADIO_CODE BATTERY_CONTACT L505 B501 UNSWB+ 390nH BATT_CODE DATA 1 NEG BATT+ S502 3 POS F501 SWITCH BATT- CONN_J MECH_SWB+ LI_ION B503 TAB2 CR501 B504 VR506 VR439 C503 C502 TAB1 6.8V 0.47uF 100pF R507 6.8V C505 VR501 100pF Vdda...
  • Page 194 3-50 UHF PCB 8480450Z13/14 Schematics DACRx C322 82pF R342 100K L310 150nH R308 R310 C315 C314 R305 100pF 0.1uF R304 R309 C380 .01uF CR306 L304 C321 T301 180nH 100pF C306 XFMR C309 R306 C308 100pF R307 100K 100pF C312 C318 100K C310 L305...
  • Page 195 UHF PCB 8480450Z13/14 Schematics 3-51 R343 L331 2.20uH Vdd_FILTERED Vdda C382 10uF (SOURCE) DEMOD C348 C344 C347 C346 R350 C345 0.1uF 100K 0.1uF 0.1uF 0.1uF 0.1uF C390 C329 100pF 0.1uF C343 0.22uF R344 R345 R355 C383 C357 Q320 100pF C342 C384 0.22uF BFQ67W...
  • Page 196 3-52 UHF PCB 8480450Z13/14 Schematics U210 U211 TC7ST04FU C296 TC7ST04FU C265 C257 0.1uF 100pF 3 GND C258 .01uF U247 ADP3300 C259 SWB+ .01uF (SOURCE) CR201 C291 3 K3 10uF C294 C293 4V_3.3V L202 U248 100pF 0.47uF 2 K2 A2 5 LP2980 2.2uH L203...
  • Page 197 UHF PCB 8480450Z13/14 Schematics 3-53 C281 R245 100pF R242 L243 C250 C286 RESONATOR C276 C285 7.5pF 0.1uF 2.2uF 100pF C246 L281 R241 L273 100pF 390nH 33nH C242 7.5pF C272 C273 0.1uF C243 L242 L271 R244 7.5pF 220nH 68nH RX_INJ C245 2.4pF TX_INJ TX_IADJ...
  • Page 198 3-54 UHF PCB 8480450Z13/14 Schematics E101 R102 BEAD 0.075 UNSWB+ L107 C114 C123 33.47nH 100pF 10uF C172 0.1uF C109 L106 UNSWB+ 100pF 7.66nH MicrostripMicrostrip X_OUT R106 R172 Q110 C121 C160 L112 R175 L109 L108 100pF 100pF 22nH Microstrip 4.22nH C111 C112 C113 C118...
  • Page 199 UHF PCB 8480450Z13/14 Schematics 3-55 ANT_BIAS SH100 C108 100pF SHIELD L105 390nH TX_OUT HF SHIELD CR101 L102 L101 L104 19.61nH 19.61nH 19.61nH RX_IN CR102 C101 C102 C103 C104 C106 C107 100pF 6.2pF 10pF 6.2pF 4.7pF 3.3pF R170 C175 20pF RF_JACK R101 ZMY0130486-A UHF (403-470 MHz) Harmonic Filter...
  • Page 200 3-56 UHF PCB 8480450Z13/14 Schematics THIS PAGE INTENTIONALLY LEFT BLANK...
  • Page 201 UHF PCB 8480450Z13/14 Parts List 3-57 11.0 UHF PCB 8480450Z13/14 Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Parts List Part No. Part No. Part No. C161 2113743M24 100000pF C254 2113743N15 3.6pF C322 2113743N48 82pF Circuit Motorola Description C165...
  • Page 202 3-58 UHF PCB 8480450Z13/14 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. C381 2113743N21 6.2pF C441 2113743N50 100pF C527 2113743N50 100pF CR304 4862824C08 Varactor C382 2311049A59...
  • Page 203 UHF PCB 8480450Z13/14 Parts List 3-59 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. L232 2462587P25 12000nH Q310 NOT PLACED R248 0662057M37 R343 0662057M26 L241 2462587V41 390nH Q315...
  • Page 204 GP1280 only T301 2580541Z01 Balun transformer R704 0662057N13 T302 2580541Z01 Balun transformer used in GP1280 only * Motorola Depot Servicing only R705 0662057N13 ** Not Field Serviceable used in GP1280 only R706 0662057N17 used in GP1280 only R707 0662057M91 5.1K...

  • Page 205: 12.0 Uhf Pcb 8486458Z03 Schematics

    UHF PCB 8486458Z03 Schematics 3-61 12.0 UHF PCB 8486458Z03 Schematics R410 C521 E407 E409 R437 SH323 C338 FL302 C325 C349 VR501 U405 TP201 J400 R506 SH201 U247 C324 Q505 C220 L311 R505 R355 L203 R324 C352 C426 C425 C512 C513 C260 Q502 Q210...
  • Page 206 3-62 UHF PCB 8486458Z03 Schematics R132 R131 SH403 C415 R130 Q410 CR105 R109 C430 C440 C373 C414 C133 C476 R349 R436 C172 Q111 Q310 R172 C451 C450 R330 R331 C410 L281 CR241 J101 C409 C371 C372 C138 C151 C445 CR243 U420 R242 C152...
  • Page 207 UHF PCB 8486458Z03 Schematics 3-63 RADIO_CODE BATTERY_CONTACT L505 B501 UNSWB+ 390nH BATT_CODE DATA 1 NEG BATT+ S502 3 POS F501 SWITCH BATT- CONN_J MECH_SWB+ LI_ION B503 TAB2 CR501 B504 VR506 VR439 C503 C502 6.8V TAB1 0.47uF 100pF R507 6.8V C505 VR501 100pF Vdda...
  • Page 208 3-64 UHF PCB 8486458Z03 Schematics DACRx C322 82pF R342 100K L310 150nH C315 R308 C314 R310 R305 100pF 0.1uF R304 C380 R309 .01uF CR306 L304 C321 T301 180nH 100pF C306 XFMR C309 C308 R306 100pF R307 100pF 100K 100K C310 C312 C316 C318...
  • Page 209 UHF PCB 8486458Z03 Schematics 3-65 U302-1 R345 R360 TC7W04F FL303 C352 CFWC455E 0.1uF 1 IN U302-3 TC7W04F U302-4 PWR_GND R355 100K BW_SEL U302-2 CR312 R321 R324 TC7W04F FL304 C362 CFWC455G 0.1uF OUT 2 R361 CR313 R350 R358 3.3K 2.4K C329 C357 0.1uF 0.1uF...
  • Page 210 3-66 UHF PCB 8486458Z03 Schematics U210 U211 TC7ST04FU C296 TC7ST04FU C265 C257 0.1uF 100pF 3 GND C258 .01uF U247 ADP3300 SWB+ C259 .01uF (SOURCE) CR201 C291 3 K3 10uF C294 C293 L202 U248 4V_3.3V 100pF 0.47uF 2 K2 A2 5 LP2980 2.2uH L203...
  • Page 211 UHF PCB 8486458Z03 Schematics 3-67 C281 R245 100pF R242 L243 C250 C276 C286 C285 RESONATOR 7.5pF 0.1uF 2.2uF 100pF C246 L281 R241 L273 100pF 390nH 33nH C242 C272 7.5pF C273 0.1uF C243 L242 L271 R244 7.5pF 220nH 68nH RX_INJ C245 2.4pF TX_INJ TX_OUT...
  • Page 212 3-68 UHF PCB 8486458Z03 Schematics E101 R102 BEAD 0.075 UNSWB+ L107 C114 C123 33.47nH 100pF 10uF C172 0.1uF C109 L106 UNSWB+ 100pF 7.66nH MicrostripMicrostrip X_OUT R106 R172 Q110 C121 C160 R175 L109 L112 L108 100pF 100pF 22nH Microstrip 4.22nH C111 C112 C113 C118...
  • Page 213 UHF PCB 8486458Z03 Schematics 3-69 4V_3.3V R405 R402 SWB+ TP410 Q400 Vddd BATT_CODE TP406 Vddd C405 100pF UNSWB+ C401 C400 R401 800 MHz only 0.1uF .01uF R406 R427 2.7K U400 C402 C403 LP2951ACMM-3.3 CR412 0.1uF 10uF Vdda INPUT OUTPUT R407 A1 4 BATT_DATA_IN ERROR...
  • Page 214 3-70 UHF PCB 8486458Z03 Schematics THIS PAGE INTENTIONALLY LEFT BLANK...
  • Page 215 UHF PCB 8486458Z03 Parts List 3-71 13.0 UHF PCB 8486458Z03 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Part No. Part No. Part No. Circuit Motorola Description C166 2113743N50 100pF C259 2113743L41 10000pF C329 2113743M24 100000pF Part No.
  • Page 216 3-72 UHF PCB 8486458Z03 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. C415 2185895Z01 0.01uF C492 2113743N50 100pF E400 2480640Z01 FERRITE BEAD L281 2462587V41 390nH C416 2113928N01 0.1uF...
  • Page 217 UHF PCB 8486458Z03 Parts List 3-73 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. R106 0662057M26 R311 0662057N11 R407 0662057N19 R498 0662057M98 R107 NOTPLACED R312 0662057M90 4700 R408...
  • Page 218 Zener Diode 12V VR460 4802245J73 Zener Diode 6.8V VR501 4813830A18 DIODE 6.8V VR506 4802245J73 Zener Diode 6.8V Y300 4802245J84 Xtal Oscillator 44.395MHz Y301 9186145B02 455kHz Ceramic Discriminator 1485777Z01 INSULATOR (KAPTON) 8486458Z03 LAZARUS UHF B1 PC Board * Motorola Depot Servicing only...

  • Page 219: 14.0 Uhf Pcb 8415234H01 Schematics

    UHF PCB 8415234H01 Schematics 3-75 14.0 UHF PCB 8415234H01 Schematics R410 C521 E407 E409 R437 SH323 C338 FL302 C325 C349 VR501 U405 J400 TP201 R506 SH201 C220 Q505 L311 C324 R355 L203 R505 U247 R324 C426 C425 C352 C260 Q502 C512 C513 SH303...
  • Page 220 3-76 UHF PCB 8415234H01 Schematics C522 VR442 SH322 E404 R376 C437 VR444 L505 C523 C334 E406 R373 C350 S502 L331 R372 R374 C383 R366 R368 R359 R371 C359 R378 C327 FL401 R375 E401 C348 R370 C390 L325 R312 Q302 C279 R415 R311 R377...
  • Page 221 UHF PCB 8415234H01 Schematics 3-77 RADIO_CODE BATTERY_CONTACT L505 B501 UNSWB+ 390nH BATT_CODE DATA 1 NEG BATT+ S502 3 POS F501 SWITCH BATT- CONN_J MECH_SWB+ LI_ION B503 TAB2 CR501 B504 VR506 VR439 C503 C502 TAB1 6.8V 100pF 0.47uF R507 6.8V C505 VR501 100pF Vdda...
  • Page 222 3-78 UHF PCB 8415234H01 Schematics DACRx C322 82pF R342 100K L310 150nH C315 R308 R310 C314 R305 100pF 0.1uF R304 R309 C380 .01uF CR306 L304 C321 180nH 100pF T301 C306 XFMR C309 R306 C308 100pF R307 100pF 100K 100K C312 C318 C310 C316...
  • Page 223 UHF PCB 8415234H01 Schematics 3-79 U302-1 R345 R360 TC7W04F FL303 C352 CFWC455E 0.1uF 1 IN U302-3 TC7W04F U302-4 PWR_GND R355 100K BW_SEL U302-2 CR312 R321 TC7W04F R324 FL304 C362 CFWC455G 0.1uF OUT 2 R361 CR313 R350 R358 3.3K 2.4K C329 C357 0.1uF 0.1uF...
  • Page 224 3-80 UHF PCB 8415234H01 Schematics U210 U211 TC7ST04FU C296 TC7ST04FU C265 C257 0.1uF 100pF 3 GND C258 .01uF U247 ADP3300 SWB+ C259 .01uF (SOURCE) CR201 C291 3 K3 10uF C294 C293 L202 U248 4V_3.3V 100pF 0.47uF 2 K2 A2 5 LP2980 2.2uH L203...
  • Page 225 UHF PCB 8415234H01 Schematics 3-81 C281 R245 100pF R242 L243 C250 C276 C286 C285 RESONATOR 7.5pF 2.2uF 0.1uF 100pF C246 L281 R241 L273 100pF 390nH 33nH C242 7.5pF C272 C273 0.1uF C243 L242 L271 R244 7.5pF 220nH 68nH RX_INJ C245 2.4pF TX_INJ TX_IADJ...
  • Page 226 3-82 UHF PCB 8415234H01 Schematics E101 R102 BEAD 0.075 UNSWB+ L107 C114 C123 33.47nH 100pF 10uF C172 0.1uF C109 L106 UNSWB+ 100pF 7.66nH MicrostripMicrostrip X_OUT R106 R172 Q110 C121 C160 R175 L109 L112 L108 100pF 100pF 22nH Microstrip 4.22nH C111 C112 C113 C118...
  • Page 227 UHF PCB 8415234H01 Schematics 3-83 ANT_BIAS SH100 C108 100pF SHIELD L105 390nH TX_OUT HF SHIELD CR101 L102 L101 L104 19.61nH 19.61nH 19.61nH RX_IN CR102 C101 C106 C102 C103 C104 C107 100pF 6.2pF 10pF 6.2pF 4.7pF 3.3pF R170 C175 20pF RF_JACK R101 ZMY0130486-A UHF (403-470 MHz) Harmonic Filter Schematic Diagram...
  • Page 228 3-84 UHF PCB 8415234H01 Schematics THIS PAGE INTENTIONALLY LEFT BLANK...
  • Page 229 UHF PCB 8415234H01 (EPP) Parts List 3-85 15.0 UHF PCB 8415234H01 (EPP) Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Parts List Part No. Part No. Part No. C123 2313960F04 CAP TANT 33 UF 10% 16V C174 2113944A40 CAP CER CHP 100.0PF 50V...
  • Page 230 3-86 UHF PCB 8415234H01 (EPP) Parts List Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. C286 2113946K02 CAP CER CHP 0.10UF 16V C320 2113944A79 CAP,FXD,16PF,+5%,-5%,50V- C375 2113944A40 CAP CER CHP 100.0PF 50V...
  • Page 231 UHF PCB 8415234H01 (EPP) Parts List 3-87 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. C466 2113944A40 CAP CER CHP 100.0PF 50V C514 2113944A40 CAP CER CHP 100.0PF 50V...
  • Page 232 3-88 UHF PCB 8415234H01 (EPP) Parts List Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. L115 2462587N22 CHIP IND 390 NH 10% PB502 4086470Z01 Tact Switch R108 0613952Q91...
  • Page 233 UHF PCB 8415234H01 (EPP) Parts List 3-89 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. R314 0613952Q78 CER CHIP RES 1600 OHM R364 0613952Q79 CER CHIP RES 1800 OHM...
  • Page 234 3-90 UHF PCB 8415234H01 (EPP) Parts List Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. R604 0613952Z58 RES,MF,22KOHM,1%,.0625 R648 0613952R25 CER CHIP RES 100K OHM U406 5115250H02 Need CGISS Description In...

  • Page 235: 16.0 Uhf Pcb 8415234H02 Schematics

    UHF PCB 8415234H02 Schematics 3-91 16.0 UHF PCB 8415234H02 Schematics R410 C521 C597 E407 E409 R437 SH323 C338 FL302 C349 VR501 C599 U405 C325 TP201 J400 R506 C598 SH201 C220 Q505 L311 C324 U247 R355 L203 R505 C426 C425 R324 C352 C260 Q502...
  • Page 236 3-92 UHF PCB 8415234H02 Schematics VR444 C522 VR442 C523 SH322 E404 R376 L505 C334 C437 E406 R373 R374 C350 S502 L331 R372 C383 R366 R368 R359 C359 R371 R378 C327 E401 FL401 C348 R370 R375 C390 L325 Q302 R312 C279 R344 R415 R377...
  • Page 237 UHF PCB 8415234H02 Schematics 3-93 HIGH UHF (403-470 MHz) Controls And Switches Schematic Diagram...
  • Page 238 3-94 UHF PCB 8415234H02 Schematics DACRx C322 82pF R342 -65.5dBm@45.1MHz 100K L310 150nH R310 C315 R308 R305 C314 100pF 0.1uF R304 R309 C380 .01uF L304 C321 -63.4dBm@403.355MHz CR306 180nH 100pF C306 T301 XFMR -54.4dBm@403.355MHz C309 C308 R306 R307 -60.5dBm@469.985MHz 100pF 100pF 100K 100K...
  • Page 239 UHF PCB 8415234H02 Schematics 3-95 L331 R343 2.20uH Vdd_FILTERED Vdda C382 (SOURCE) 10uF DEMOD R350 C344 C347 C348 C346 C345 100K 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF C390 100pF C329 0.1uF C343 0.22uF R344 R345 R355 C383 100pF 2.628V 3.185V C357 C342 C384 0.22uF...
  • Page 240 3-96 UHF PCB 8415234H02 Schematics U211 U210 TC7ST04FU C296 TC7ST04FU C265 0.1uF C257 100pF VCC 5 C258 7.697V .01uF U247 ADP3300 SWB+ C259 .01uF (SOURCE) CR201 C291 C294 100pF 10uF C293 4V_3.3V L202 0.47uF U248 2.2uH LP2980 L203 C277 C278 2.2uH C229 100pF...
  • Page 241 UHF PCB 8415234H02 Schematics 3-97 C281 R245 100pF R242 C250 L243 C276 C286 C285 7.5pF 4.567V (Rx) 2.2uF 0.1uF 100pF RESONATOR C246 L281 L273 R241 100pF 4.613V (Tx) 390nH 33nH C242 7.5pF C272 C273 0.1uF C243 L271 L242 R244 7.5pF 68nH 220nH RX_INJ...
  • Page 242 3-98 UHF PCB 8415234H02 Schematics E101 BEAD R102 0.075 UNSWB+ L107 C114 C123 33.47nH 100pF 10uF C172 100pF C109 L106 UNSWB+ 100pF 7.66nH Microstrip Microstrip TX_OUT R106 R172 Q110 L108 L109 C121 C160 L112 R175 100pF 4.22nH 100pF 22nH Microstrip C111 C112 C113...
  • Page 243 UHF PCB 8415234H02 Schematics 3-99 ANT_BIAS C108 SH100 100pF L105 SHIELD 390nH TX_OUT HF SHIELD CR101 L102 L101 L104 19.61nH 19.61nH 19.61nH RX_IN CR102 C102 C101 C103 C104 C106 C107 6.2pF 4.7pF 100pF 10pF 6.2pF 3.3pF R170 C175 RF_JACK 20pF R101 ZMY0130486-O UHF Harmonic Filter Schematic...
  • Page 244 3-100 UHF PCB 8415234H02 Schematics THIS PAGE INTENTIONALLY LEFT BLANK...
  • Page 245 UHF PCB 8415234H02 Parts List 3-101 17.0 UHF PCB 8415234H02 Parts List Circuit Motorola Description Circuit Motorola Description Circuit Motorola Description Ref. Part No. Ref. Part No. Ref. Part No. Circuit Motorola Description C120 2113944A77 CAP,FXD,11PF,+5%,- C165 2113944A40 CAP CER CHP 100.0PF 50V...
  • Page 246 3-102 UHF PCB 8415234H02 Parts List Circuit Motorola Description Circuit Motorola Description Circuit Motorola Description Circuit Motorola Description Ref. Part No. Ref. Part No. Ref. Part No. Ref. Part No. C260 2113944A40 CAP CER CHP 100.0PF 50V C305 2113944A80 CAP,FXD,20PF,+5%,-...
  • Page 247 UHF PCB 8415234H02 Parts List 3-103 Circuit Motorola Description Circuit Motorola Description Circuit Motorola Description Circuit Motorola Description Ref. Part No. Ref. Part No. Ref. Part No. Ref. Part No. C538 2113944A40 CAP CER CHP 100.0PF 50V CR301 4815279H01 BBY5503WE6327 FROM...
  • Page 248 3-104 UHF PCB 8415234H02 Parts List Circuit Motorola Description Circuit Motorola Description Circuit Motorola Description Circuit Motorola Description Ref. Part No. Ref. Part No. Ref. Part No. Ref. Part No. PB504 4070354A01 LIGHT TOUCH SWITCH- R130 0613952R01 CER CHIP RES 10K OHM 5%...
  • Page 249 UHF PCB 8415234H02 Parts List 3-105 Circuit Motorola Description Circuit Motorola Description Ref. Part No. Ref. Part No. R369 0613952Q69 CER CHIP RES 680 OHM 5% U101 5115678H01 VHF/UHF/800/900 MHZ 0402 LDMOS DRIVER IC R370 0613952R66 CER CHIP RES 0.0 +/-0.050...
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  • Page 251 Circuit Board/Schematic Diagrams and Parts List (PCB No. 8415234H05) 3-107 18.0 Circuit Board/Schematic Diagrams and Parts List (PCB No. 8415234H05) R410 C521 C597 E407 E409 R437 SH323 C338 FL302 C325 VR501 C599 U405 C349 J400 C598 R506 TP201 SH201 C324 Q505 C220 L311...
  • Page 252 3-108 Circuit Board/Schematic Diagrams and Parts List (PCB No. 8415234H05) C522 VR444 VR442 C523 SH322 R376 E404 C437 L505 C334 E406 R373 C350 S502 R359 R372 C383 R366 R368 R374 L331 R378 C359 R371 E401 C390 FL401 C327 R375 C348 R370 L325 Q302...
  • Page 253 Circuit Board/Schematic Diagrams and Parts List (PCB No. 8415234H05) 3-109 RADIO_CODE C598 B501 4.7pF L505 UNSWB+ BATTERY_CONTACT 390nH C597 C599 BATT_CODE 43pF DATA 3.9pF E102 BATT+ F501 BLM21PG221SN1 CONN_J S502 BATT- MECH_SWB+ SWITCH LI_ION B503 VR439 C503 TAB2 100pF B504 C502 VR506 CR501...
  • Page 254 3-110 Circuit Board/Schematic Diagrams and Parts List (PCB No. 8415234H05) DACRx C322 82pF C391 R342 24pF 100K L310 150nH C315 R308 R310 R305 C314 100pF 0.1uF R304 C380 R309 .01uF L304 C321 CR306 180nH 100pF C306 T301 XFMR C309 C308 100pF R306 R307...
  • Page 255 Circuit Board/Schematic Diagrams and Parts List (PCB No. 8415234H05) 3-111 U302-1 TC7W04F C352 R345 R360 0.1uF FL303 U302-4 CFWC455E PWR_GND U302-3 OUT 2 TC7W04F R355 100K U302-2 TC7W04F BW_SEL R321 CR312 R324 C362 CR313 0.1uF FL304 CFWC455G OUT 2 R361 R350 R358 3.3K...
  • Page 256 3-112 Circuit Board/Schematic Diagrams and Parts List (PCB No. 8415234H05) U211 U210 TC7ST04FU C296 TC7ST04FU C265 0.1uF C257 100pF VCC 5 C258 7.697V .01uF U247 ADP3300 SWB+ C259 .01uF (SOURCE) CR201 C291 C294 100pF 10uF C293 4V_3.3V L202 0.47uF U248 2.2uH LP2980 L203...
  • Page 257 Circuit Board/Schematic Diagrams and Parts List (PCB No. 8415234H05) 3-113 C281 R245 100pF R242 C250 L243 C276 C286 C285 7.5pF 2.2uF 4.567V (Rx) 0.1uF 100pF RESONATOR C246 L281 L273 R241 100pF 4.613V (Tx) 390nH 33nH C242 7.5pF C272 C273 0.1uF C243 L271 L242...
  • Page 258 3-114 Circuit Board/Schematic Diagrams and Parts List (PCB No. 8415234H05) UNSWB+ E101 R102 BEAD L107 C123 33.47nH 10uF C114 100pF C172 0.1uF C109 L106 100pF 7.66nH TX_OUT R106 Microstrip Microstrip Q110 R172 L108 R191 C121 C160 L112 4.22nH 100pF 390nH 56pF R175 Microstrip...
  • Page 259 Circuit Board/Schematic Diagrams and Parts List (PCB No. 8415234H05) 3-115 ANT_BIAS SH100 C108 L105 SHIELD 100pF 390nH TX_OUT HF SHIELD CR101 L101 L102 L104 16.28nH 17.02nH 19.61nH RX_IN CR102 C101 C102 C103 C104 C106 C107 100pF 8.2pF 13pF 7.5pF 4.7pF 3.3pF R170 C175...
  • Page 260 3-116 Circuit Board/Schematic Diagrams and Parts List (PCB No. 8415234H05) THIS PAGE INTENTIONALLY LEFT BLANK...

  • Page 261: Uhf Pcb 8415234H05 Epp Parts List

    UHF PCB 8415234H05 (EPP) Parts List 3-117 19.0 UHF PCB 8415234H05 (EPP) Circuit Motorola Circuit Motorola Circuit Motorola Parts List Description Description Description Part No. Part No. Part No. C115 2113944A81 CAP,FXD,24PF,+5%,- C135 2113945B04 CAP,FXD,.022UF,+10%,- C202 2113945A09 CAP CER CHP 1000PF...
  • Page 262 3-118 UHF PCB 8415234H05 (EPP) Parts List Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. C232 2113945D02 CAP CER CHP 47,000PF C257 2113944A40 CAP CER CHP 100.0PF C293 2113945G98 CAP,FXD,.47UF,+10%,-...
  • Page 263 UHF PCB 8415234H05 (EPP) Parts List 3-119 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. C348 2113946K02 CAP CER CHP 0.10UF 16V C378 NOTPLACE GCAM DUMMY PART C411 2113946K02 CAP CER CHP 0.10UF 16V...
  • Page 264 3-120 UHF PCB 8415234H05 (EPP) Parts List Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. C466 2113944A40 CAP CER CHP 100.0PF C498 NOTPLACE GCAM DUMMY PART C597 2113944A84...
  • Page 265 UHF PCB 8415234H05 (EPP) Parts List 3-121 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. CR412 4815067H01 DIODE SCHOTTKY, E408 2480640Z01 SURFACE MOUNT J102 0280519Z06 NUT, ANTENNA L202 2414017Q20 IDCTR,FXD,2.2UH,20%,30...
  • Page 266 3-122 UHF PCB 8415234H05 (EPP) Parts List Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. L307 2479990C01 COIL/GREEN Q111 4815055H01 TSTR DUAL NPN/PNP R101 0613952H58 CER CHIP RES 240 OHM 5...
  • Page 267 UHF PCB 8415234H05 (EPP) Parts List 3-123 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. R252 0613952Q61 CER CHIP RES 330 OHM 5 R313 0613952Q61 CER CHIP RES 330 OHM 5...
  • Page 268 3-124 UHF PCB 8415234H05 (EPP) Parts List Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. R416 0613952R01 CER CHIP RES 10K OHM R447 0613952R25 CER CHIP RES 100K OHM...
  • Page 269 UHF PCB 8415234H05 (EPP) Parts List 3-125 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. R633 0613952R25 CER CHIP RES 100K OHM SH402 2680515Z02 SHIELD, CONTROLLER U410 5115044H01...
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  • Page 271: 20.0 Uhf Pcb 8415234H08 Schematics

    UHF PCB 8415234H08 Schematics 3-127 20.0 UHF PCB 8415234H08 Schematics R410 C521 C597 C392 E407 E409 R437 SH323 C387 C338 FL302 C389 C604 C325 VR501 C599 U405 C349 TP201 J400 C598 R506 SH201 C324 Q505 C220 L311 R355 L203 R324 R505 U247 C426...
  • Page 272 3-128 UHF PCB 8415234H08 Schematics C522 VR444 VR442 C523 E404 SH322 R376 C437 L505 C334 E406 R373 C350 S502 R372 R374 R368 L331 C383 R366 R359 C359 R371 R378 FL401 C327 R370 R375 E401 C348 C390 L325 Q302 R312 C463 C279 R415 R311...
  • Page 273 UHF PCB 8415234H08 Schematics 3-129 S502_SWITCH_P5 UNSWB+ FUSE_B+ RADIO_CODE BATTERY_CONTACT E107 BLM18PG121SN1 L505 C599 B501 C598 E106 390nH 3.9pF 4.7pF C597 BLM18PG121SN1 BATT_CODE DATA 43pF BATT+ E102 F501 BLM21PG221SN1 FUSE_B+ S502 CONN_J MECH_SWB+ SWITCH BATT- LI_ION B503 VR439 C605 C503 TAB2 100pF 43pF...
  • Page 274 3-130 UHF PCB 8415234H08 Schematics DACRx C322 82pF C391 R342 24pF 100K L310 150nH C315 R308 R310 R305 C314 100pF 0.1uF R304 C380 R309 .01uF L304 C321 CR306 180nH 100pF C306 T301 XFMR C309 C308 100pF R306 R307 100pF 100K 100K C310 C312...
  • Page 275 UHF PCB 8415234H08 Schematics 3-131 U302-1 R345 R360 C352 TC7W04F 0.1uF FL303 CFWC455E U302-3 TC7W04F C603 C387 U302-4 24pF 24pF PWR_GND R355 100K BW_SEL U302-2 CR312 R324 R321 TC7W04F C362 0.1uF FL304 CFWC455G 1 IN R350 C389 R361 C388 CR313 24pF 3.3K 24pF...
  • Page 276 3-132 UHF PCB 8415234H08 Schematics U210 TC7ST04FU C265 C257 C296 U211 100pF 0.1uF TC7ST04FU C258 .01uF U247 ADP3300 C259 SWB+ .01uF (SOURCE) CR201 C291 10uF C294 C293 4V_3.3V L202 100pF 0.47uF U248 2.2uH L203 LP2980 C277 C278 2.2uH 100pF 2.2uF C230 C229 C228...
  • Page 277 UHF PCB 8415234H08 Schematics 3-133 C281 R245 100pF R242 C250 C276 C285 7.5pF C286 2.2uF 100pF 0.1uF L243 RESONATOR C246 L281 L273 100pF R241 390nH 33nH C242 7.5pF C272 C273 0.1uF C243 L271 L242 18 14 R244 7.5pF 68nH 220nH RX_INJ C245 2.4pF...
  • Page 278 UHF PCB 8415234H08 Schematics 3-134 FUSE_B+ E101 R102 BEAD 0.075 C114 L107 C123 100pF 10uF 33.47nH C172 100pF C109 L106 100pF 7.66nH Microstrip Microstrip TX_OUT R106 R172 Q110 C121 C160 L108 L109 L112 R175 4.22nH 100pF 100pF 22nH 11.03nH Microstrip C111 C112 C113...
  • Page 279 UHF PCB 8415234H08 Schematics 3-135 ANT_BIAS C108 SH100 100pF SHIELD L105 390nH TX_OUT HF SHIELD CR101 L102 L104 L101 17.02nH 16.28nH 19.61nH RX_IN CR102 C101 C102 C103 C104 C106 C107 100pF 8.2pF 13pF 7.5pF 4.7pF 3.3pF R170 C175 20pF RF_JACK R101 UHF (403-470 MHz) Harmonic Filter Schematic Diagram...
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  • Page 281: 21.0 Uhf Pcb 8415234H08 Parts List

    UHF PCB 8415234H08 Parts List 3-137 21.0 UHF PCB 8415234H08 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Part No. Part No. Part No. Circuit Motorola Description C115 2113944A81 CAP,FXD,24PF,+5%,- C138 2113944A40 CAP CER CHP 100.0PF C203 2113946H01 CAP CER CHP 4.7UF 10V...
  • Page 282 3-138 UHF PCB 8415234H08 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. C233 2313960A26 CAP,FXD,.1UF,+10%,- C258 2113945B02 CAP CER CHP 10,000PF C294 2113944A40 CAP CER CHP 100.0PF...
  • Page 283 UHF PCB 8415234H08 Parts List 3-139 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. C349 2113945D04 CAP CER CHP 100,000PF C380 2113945B02 CAP CER CHP 10,000PF C405 2113944A40 CAP CER CHP 100.0PF...
  • Page 284 3-140 UHF PCB 8415234H08 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. C452 2113955D31 CAP,FXD,1UF,,+10%,- C492 2113944A40 CAP CER CHP 100.0PF C524 2113944A40 CAP CER CHP 100.0PF...
  • Page 285 UHF PCB 8415234H08 Parts List 3-141 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. CR301 4815279H01 BBY5503WE6327 FROM E102 7686949J14 FLTR,FERRITE E641 2480640Z01 SURFACE MOUNT L105 2414032B22 IDCTR,WW,390NH,10%,62...
  • Page 286 3-142 UHF PCB 8415234H08 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. L253 2460593C02 COIL MULT LAYERED TAP L331 2414017K33 IDCTR,CHIP,680NH,5%,50 Q302 4802197J95 RF TRANSISTOR PBR941...
  • Page 287 UHF PCB 8415234H08 Parts List 3-143 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. R201 0613952R23 CER CHIP RES 82K OHM R281 NOTPLACE GCAM DUMMY PART R324 0613952R08...
  • Page 288 3-144 UHF PCB 8415234H08 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. R401 0613952R66 CER CHIP RES 0.0 +/- R424 0613952R14 CER CHIP RES 36K OHM 5...
  • Page 289 UHF PCB 8415234H08 Parts List 3-145 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. R613 0613952R49 CER CHIP RES 1.0M OHM S501 4080710Z21 SWITCH, FREQUENCY U201 5185177Y01 IC TESTED AT25016 48...
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  • Page 291: 22.0 Uhf Pcb 8486743Z02 Schematics

    UHF PCB 8486743Z02 Schematics 3-147 22.0 UHF PCB 8486743Z02 Schematics VR440 E407 R410 E409 SH323 R437 C521 R543 C507 R558 VR441 R541 R510 R509 R511 R508 R539 L330 R556 C523 C522 R537 R507 Y301 R535 R592 R533 R557 R591 FL301 U405 R593 TP201...
  • Page 292 3-148 UHF PCB 8486743Z02 Schematics SH322 R542 E404 C334 R568 R540 C350 E406 R359 S502 L331 VR292 R366 R538 R368 R536 R291 C327 C348 R534 Q302 R312 R344 R311 R519 R412 U301 C344 C360 R322 C385 R415 R520 R320 C366 SH202 C294 C211 C212...
  • Page 293 UHF PCB 8486743Z02 Schematics 3-149 UHF (403-470 MHz) Receiver Front End Schematic Diagram...
  • Page 294 3-150 UHF PCB 8486743Z02 Schematics UHF (403-470 MHz) Receiver Back End Schematic Diagram...
  • Page 295 UHF PCB 8486743Z02 Schematics 3-151 UHF (403-470 MHz) Synthesizer Schematic Diagram...
  • Page 296 3-152 UHF PCB 8486743Z02 Schematics UHF (403-470 MHz) Voltage Controlled Oscillator Schematic Diagram...
  • Page 297 UHF PCB 8486743Z02 Schematics 3-153 UHF (403-470 MHz) Transmitter Schematic Diagram...
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  • Page 299 UHF PCB 8486743Z02 Parts List 3-155 23.0 UHF PCB 8486743Z02 Parts List Circuit Motorola Description Circuit Motorola Description Circuit Motorola Description Part No. Part No. Part No. Circuit Motorola Description C124 NOTPLACED - CAP CER CHP 0.047UF 10V CAP CER CHP 1000PF 50V Part No.
  • Page 300 3-156 UHF PCB 8486743Z02 Parts List Circuit Motorola Description Circuit Motorola Description Circuit Motorola Description Circuit Motorola Description Part No. Part No. Part No. Part No. CAP CER CHP 10,000PF 25V C306 NOTPLACED - CAP,FXD,.1UF,+10%,- CAP CER CHP 0.10UF 10V...
  • Page 301 UHF PCB 8486743Z02 Parts List 3-157 Circuit Motorola Description Circuit Motorola Description Circuit Motorola Description Circuit Motorola Description Part No. Part No. Part No. Part No. CAP CER CHP 0.10UF 10V CAP CER CHP 100.0PF 50V CAP CER CHP 100.0PF 50V...
  • Page 302 3-158 UHF PCB 8486743Z02 Parts List Circuit Motorola Description Circuit Motorola Description Circuit Motorola Description Circuit Motorola Description Part No. Part No. Part No. Part No. SURFACE MOUNT FERRITE AIR WOUND COIL/GREEN IDCTR,WW,180NH,5%,400M RF TRANS SOT 323 E639 2480640Z01 BEAD...
  • Page 303 UHF PCB 8486743Z02 Parts List 3-159 Circuit Motorola Description Circuit Motorola Description Circuit Motorola Description Circuit Motorola Description Part No. Part No. Part No. Part No. R131 NOTPLACED - CER CHIP RES 100K OHM R288 NOTPLACED R333 NOTPLACED - CER CHIP RES 270K OHM...
  • Page 304 3-160 UHF PCB 8486743Z02 Parts List Circuit Motorola Description Circuit Motorola Description Circuit Motorola Description Circuit Motorola Description Part No. Part No. Part No. Part No. RES,MF,180KOHM,1%,.0625 CER CHIP RES 10K OHM 5% CER CHIP RES 1100 OHM CER CHIP RES 1100 OHM...
  • Page 305 UHF PCB 8486743Z02 Parts List 3-161 Circuit Motorola Description Circuit Motorola Description Circuit Motorola Description Circuit Motorola Description Part No. Part No. Part No. Part No. CER CHIP RES 1100 OHM CER CHIP RES 51K OHM 5% SHLD,CAN,STL,TIN/LEAD U405 5115020H01 IC,SRAM,32K X 8,SOIC,3.6V...
  • Page 306 3-162 UHF PCB 8486743Z02 Parts List Circuit Motorola Description Part No. DIODE ZENER 0.2W SOD- VR447 4813977A54 323 10V DIODE ZENER 0.2W SOD- VR448 4813977A54 323 10V DIODE ZENER 0.2W SOD- VR449 4813977A54 323 10V DIODE VR460 4815038H01 ARRAY,ZEN,SM,SOD-323,6 DIODE...
  • Page 307 UHF PCB 8415234H05 450-470 MHz Narrow Band 3-163 24.0 UHF PCB 8415234H05 450-470 MHz Narrow Band R410 C521 C597 E407 E409 R437 SH323 C338 FL302 C325 VR501 C599 U405 C349 J400 C598 R506 TP201 SH201 C324 Q505 C220 L311 R355 L203 R505 U247...
  • Page 308 3-164 UHF PCB 8415234H05 450-470 MHz Narrow Band C522 VR444 VR442 C523 SH322 R376 E404 C437 L505 C334 E406 R373 C350 R372 C383 S502 R366 R368 R359 R374 L331 R378 C359 R371 E401 C390 FL401 C327 R375 C348 R370 Q302 L325 R312 C337...
  • Page 309 UHF PCB 8415234H05 450-470 MHz Narrow Band 3-165 RADIO_CODE C598 B501 4.7pF L505 UNSWB+ BATTERY_CONTACT 390nH C597 C599 43pF BATT_CODE DATA 3.9pF E102 BATT+ F501 BLM21PG221SN1 CONN_J S502 BATT- MECH_SWB+ SWITCH LI_ION B503 VR439 C503 TAB2 100pF VR506 B504 C502 CR501 TAB1 0.47uF...
  • Page 310 3-166 UHF PCB 8415234H05 450-470 MHz Narrow Band DACRx C322 82pF C391 R342 24pF 100K L310 150nH C315 R308 R310 R305 C314 100pF 0.1uF R304 R309 C380 .01uF L304 C321 CR306 180nH 100pF C306 T301 XFMR C309 C308 100pF R306 R307 100pF C312...
  • Page 311 UHF PCB 8415234H05 450-470 MHz Narrow Band 3-167 U302-1 R345 R360 TC7W04F FL303 C352 CFWC455E 0.1uF 1 IN U302-3 TC7W04F U302-4 PWR_GND R355 100K BW_SEL U302-2 CR312 R324 R321 TC7W04F FL304 C362 CFWC455G 0.1uF OUT 2 R361 CR313 R350 3.3K R358 2.4K C329...
  • Page 312 3-168 UHF PCB 8415234H05 450-470 MHz Narrow Band U211 C265 C257 U210 C296 TC7ST04FU 0.1uF 100pF TC7ST04FU C258 .01uF U247 ADP3300 C259 SWB+ .01uF (SOURCE) CR201 C291 10uF C294 C293 4V_3.3V L202 100pF 0.47uF U248 2.2uH L203 LP2980 C277 C278 2.2uH 100pF 2.2uF...
  • Page 313 UHF PCB 8415234H05 450-470 MHz Narrow Band 3-169 C281 R245 100pF R242 C250 C276 C286 C285 7.5pF L243 2.2uF 0.1uF 100pF RESONATOR C246 100pF L281 L273 R241 390nH 33nH C242 7.5pF C272 C273 0.1uF C243 L271 L242 R244 7.5pF 68nH 220nH C245 RX_INJ...
  • Page 314 3-170 UHF PCB 8415234H05 450-470 MHz Narrow Band UNSWB+ E101 BEAD R102 0.075 L107 C114 C123 33.47nH 100pF 10uF C172 100pF C109 L106 100pF 7.66nH (The bom part no is 0613952H49 ) Microstrip Microstrip TX_OUT R106 R172 Q110 L108 L109 C121 C160 L112...
  • Page 315 UHF PCB 8415234H05 450-470 MHz Narrow Band 3-171 ANT_BIAS SH100 C108 L105 SHIELD 100pF 390nH TX_OUT HF SHIELD CR101 L101 L102 L104 16.28nH 17.02nH 19.61nH RX_IN CR102 C101 C102 C103 C104 C106 C107 100pF 8.2pF 13pF 7.5pF 4.7pF 3.3pF R170 C175 20pF RF_JACK...
  • Page 316 3-172 UHF PCB 8415234H05 450-470 MHz Narrow Band THIS PAGE INTENTIONALLY LEFT BLANK...
  • Page 317 UHF Narrow Band PCB 8415234H05 Parts List 3-173 25.0 UHF Narrow Band PCB Circuit Motorola Circuit Motorola Circuit Motorola 8415234H05 Parts List Description Description Description Part No. Part No. Part No. C115 2113944A81 CAP,FXD,24PF,+5%,- C135 2113945B04 CAP,FXD,.022UF,+10%, C202 2113945A09 CAP CER CHP 1000PF...
  • Page 318 3-174 UHF Narrow Band PCB 8415234H05 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. C232 2113945D02 CAP CER CHP 47,000PF C257 2113944A40 CAP CER CHP 100.0PF...
  • Page 319 UHF Narrow Band PCB 8415234H05 Parts List 3-175 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. C348 2113946K02 CAP CER CHP 0.10UF 16V C378 NOTPLACED GCAM DUMMY PART...
  • Page 320 3-176 UHF Narrow Band PCB 8415234H05 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. C466 2113944A40 CAP CER CHP 100.0PF C498 NOTPLACED GCAM DUMMY PART C529 2113944A40 CAP CER CHP 100.0PF...
  • Page 321 UHF Narrow Band PCB 8415234H05 Parts List 3-177 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. E403 2480640Z01 SURFACE MOUNT FER- L105 2414032B22 IDCTR,WW,390NH,10%, L253 2460593C02 COIL MULT LAYERED TAP...
  • Page 322 3-178 UHF Narrow Band PCB 8415234H05 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. Q310 4816531H01 NPN SILICON BIPOLAR R112 0613952Q60 CER CHIP RES 300 OHM 5...
  • Page 323 UHF Narrow Band PCB 8415234H05 Parts List 3-179 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. R331 0613952Q56 CER CHIP RES 200 OHM 5 R365 0613952Q75 CER CHIP RES 1200 OHM...
  • Page 324 3-180 UHF Narrow Band PCB 8415234H05 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. R457 0613952R01 CER CHIP RES 10K OHM R505 0613952R01 CER CHIP RES 10K OHM...
  • Page 325 Professional Radio GP Series UHF2 (450 - 527MHz) Service Information Issue: July 2007...
  • Page 326 Accordingly, any copyrighted Motorola computer programs contained in the Motorola products described in this manual may not be copied or reproduced in any manner without the express written permission of Motorola. Furthermore, the purchase of Motorola...
  • Page 327 Table of Contents Chapter 1 THEORY OF OPERATION 1.0 Introduction ......................1-1 2.0 UHF2 Transmitter ....................1-1 2.1 Power Amplifier ....................1-1 2.2 Antenna Switch....................1-2 2.3 Harmonic Filter ....................1-2 2.4 Antenna Matching Network ................1-2 2.5 Power Control Integrated Circuit (PCIC) ............1-2 3.0 UHF2 Receiver (All models except those with PCB 8486686Z02) ......1-3 3.1 Receiver Front-End ..................1-3 3.2 Receiver Back-End..................1-4 3.3 Automatic Gain Control (AGC) ...............1-5...
  • Page 328 3.0 UHF2 PCB 8485641Z02 / PCB 8485677Z02 Parts List ........3-13 4.0 UHF2 PCB 8485641Z06 Schematics ..............3-17 5.0 UHF2 PCB 8485641Z06 Parts List..............3-25 6.0 UHF2 PCB 8485677Z02 Schematics (GP1280)..........3-29 7.0 UHF2 PCB 8485677Z02 Voice Storage Parts List (GP1280)......3-33 8.0 UHF2 PCB 8485677Z03 Schematics ..............

  • Page 329: Chapter 1 Theory Of Operation

    Chapter 1 THEORY OF OPERATION Introduction This Chapter provides a detailed theory of operation for the UHF circuits in the radio. For details of the theory of operation and trouble shooting for the the associated Controller circuits refer to the Controller Section of this manual.

  • Page 330: Antenna Switch

    THEORY OF OPERATION The LDMOS PA is capable of supplying an output power of 7W with an input signal of 0.3W. The current drain is typically 1300mA while operating in the frequency range of 450-527MHz. The power output can be varied by changing the bias voltage. Antenna Switch The antenna switch circuit consists of two pin diodes (CR101 and CR102), a pi network (C107, L104 and C106), and two current limiting resistors (R101 and R170).

  • Page 331: Receiver Front-End

    UHF Receiver (all models except those with PCB 8486686Z02) UHF Receiver (all models except those with PCB 8486686Z02) The UHF receiver consists of a front end, back end, and automatic gain control circuits. A block diagram of the receiver is shown in Figure 2-2. Detailed descriptions of these features are contained in the paragraphs that follow.

  • Page 332: Receiver Back-End

    THEORY OF OPERATION The output of the bandpass filter is coupled to the RF amplifier transistor Q301 via C307. After being amplified by the RF amplifier, the RF signal is further filtered by a second varactor tuned bandpass filter, consisting of L306, L307, C313, C317, CR304 and CR305. Both the pre and post-RF amplifier varactor tuned filters have similar responses.

  • Page 333: Automatic Gain Control (Agc)

    UHF Receiver (all models except those with PCB 8486686Z02) Automatic Gain Control (AGC) (Refer to the UHF Receiver Front End and Receiver Back End schematic diagrams) The front end automatic gain control circuit provides automatic reduction of gain, of the front end RF amplifier via feedback.

  • Page 334: Receiver Front-End

    THEORY OF OPERATION UHF Receiver (Models with PCB 8486686Z02) The UHF receiver consists of a front and back end. A block diagram of the receiver is shown in Figure 2-3. Detailed descriptions of these features are contained in the paragraphs that follow. Antenna Pin Diode Varactor...

  • Page 335: Receiver Back-End

    UHF Receiver (Models with PCB 8486686Z02) The output of the bandpass filter is coupled to the RF amplifier transistor Q301 via C307. After being amplified by the RF amplifier, the RF signal is further filtered by a second varactor tuned bandpass filter, consisting of L306, L307, C313, C317, CR304 and CR305.

  • Page 336: Frequency Generation Circuit

    THEORY OF OPERATION Frequency Generation Circuit (Refer to Figure 2-4 and the UHF Frequency Synthesizer schematic diagram) The frequency generation circuit, shown in Figure 2-4, is composed of Fractional-N synthesizer U201 and VCO/Buffer IC U241. Designed in conjunction to maximize compatibility, the two ICs provide many of the functions that normally require additional circuitry.

  • Page 337: Synthesizer

    Frequency Generation Circuit Synthesizer (Refer to Figure 2-5 and the UHF Synthesizer schematic diagram) The Fractional-N synthesizer, shown in Figure 2-5, uses a 16.8MHz crystal (FL201) to provide a reference for the system. The LVFractN IC (U201) further divides this to 2.1MHz, 2.225MHz, and 2.4MHz to be used as reference frequencies.

  • Page 338: Voltage Controlled Oscillator (Vco)

    1-10 THEORY OF OPERATION Voltage Controlled Oscillator (VCO) (Refer to Figure 2-6 and the UHF Voltage Controlled Oscillator schematic diagram) The VCOB IC (U241), shown in Figure 2-6, in conjunction with the Fractional-N synthesizer (U201) generates RF in both the receive and the transmit modes of operation. The TRB line (U241 pin 19) determines which oscillator and buffer are enabled.
  • Page 339 Frequency Generation Circuit 1-11 Table 1-1 Level Shifter Logic Desired AUX 4 AUX 3 Mode High (@3.2V) High (@4.8V) High Battery Saver Hi-Z/Float (@2.5V) In the receive mode, U241 pin 19 is low or grounded. This activates the receive VCO by enabling the receive oscillator and the receive buffer of U241.

  • Page 340: Voice Storage (Gp1280 Only)

    1-12 THEORY OF OPERATION Voice Storage (GP1280 Only) (Refer to Figure 2-7 and the UHF Voice Storage schematic diagram) The Voice Storage feature is offered as standard in the GP1280 and as an Option board for GP340/GP360/GP380 and GP640/GP680 models. The Voice Storage feature enables users to: ■...
  • Page 341 Voice Storage (GP1280 Only) 1-13 Audio routing to the Voice Storage circuitry during receive message recording, message playback, personal memo recording and voice prompt transmit over the air are as follows: Received Message Recording The receive audio is tapped from the Rx_Aud_Rtn pin of the ASFIC_CMP during receive mode. Message Playback Message playback is via the FLAT_RX_SND pin of ASFIC_CMP.
  • Page 342 1-14 THEORY OF OPERATION THIS PAGE INTENTIONALLY LEFT BLANK...

  • Page 343: Chapter 2 Troubleshooting Charts

    Chapter 2 TROUBLESHOOTING CHARTS Troubleshooting Flow Chart for Receiver (All models except those with PCB 8486686Z02) (Sheet 1 of 2) START Bad SINAD Bad 20dB Quieting No Recovered Audio udio Check Controller at pin 27 of U301? Spray of inject 1st IF into XTAL Filter IF Freq: 45.1MHz Check Q320 bias...

  • Page 344: Troubleshooting Flow Chart For Receiver (All Models Except Those With Pcb 8486686Z02)(Sheet 2 Of 2)

    TROUBLESHOOTING CHARTS Troubleshooting Flow Chart for Receiver (All models except those with PCB 8486686Z02) (Sheet 2 of 2) Inject RF into J101 Q302 Trace IF signal collector OK? IF Signal from L311 to IF signal at L311? Q302. Check for present? bad XTAL filter.
  • Page 345 Troubleshooting Flow Chart for Receiver (Models with PCB 8486686Z02) (Sheet 1 of 2) Troubleshooting Flow Chart for Receiver (Models with PCB 8486686Z02) (Sheet 1 of 2) START Bad SINAD Bad 20dB Quieting No Recovered Audio Check Controller Audio at pin 8 of U301? Spray or inject 1st IF 44.85 MHz into...

  • Page 346: Troubleshooting Flow Chart For Receiver (Models With Pcb 8486686Z02) (Sheet 2 Of 2)

    TROUBLESHOOTING CHARTS Troubleshooting Flow Chart for Receiver (Models with PCB 8486686Z02) (Sheet 2 of 2) Inject RF into J101 Trace IF signal Q302 collec- from L311 to IF Signal at tor OK? Q302. Check for L311? IF signal bad XTAL filter. present? Before replacing U301, check...

  • Page 347: Troubleshooting Flow Chart For Transmitter

    Troubleshooting Flow Chart for Transmitter Troubleshooting Flow Chart for Transmitter START No Power Is There B+ Bias for Check Q111 Ant switch CR101 Is Control Voltage Is Current Check PCIC High or Low at C119 High 1. Check Pin Diodes Check Drive to 2.

  • Page 348: Troubleshooting Flow Chart For Synthesizer

    TROUBLESHOOTING CHARTS Troubleshooting Flow Chart for Synthesizer 3.3V at Check U248, Start U201 pins 5, L201 & L202 20, 34& Check CR201, Visual U210, U211, Correct check of the C258, C259 & Problem Board OK? C228 Is U201 16.8MHz 16.8MHz at pin 6 of Pin47 AT = Replace...

  • Page 349: Troubleshooting Flow Chart For Vco

    Troubleshooting Flow Chart for VCO Troubleshooting Flow Chart for VCO START No LO? U241 Check R245 TRB = Pin 10 for dry joint 5V? @U241 Carrier? >1V? or faulty Pin 19 VCO OK L253 Change Open L253 Circuit? AUX 3 Check High? R260...

  • Page 350: Troubleshooting Flow Chart For Receive Message/Personal Memo Recording

    TROUBLESHOOTING CHARTS Troubleshooting Flow Chart for Receive Message/Personal Memo Recording Cannot Receive Message Personal Memo Recording Check menu Turn on Check Mic I/P at whether record “Record Incoming J403-18 any audio? incoming messages Call” turned on Check Spkr/Mic Flex Connection J403 Check J400-34 Any audio?

  • Page 351: Troubleshooting Flow Chart For Message Playback

    Troubleshooting Flow Chart for Message Playback Troubleshooting Flow Chart for Message Playback Cannot Playback Message Check keypad/ Assemble controller flex properly interconnect ok? Change U700 or Voice Storage Audio at J400-35? Option Board Change U404...
  • Page 352 2-10 TROUBLESHOOTING CHARTS THIS PAGE INTENTIONALLY LEFT BLANK...

  • Page 353: Uhf2 Pcb/Schematics/Parts Lists

    Chapter. The Voice Storage facility may be fitted to other radios in the GP Series as an option board; reference must be made to the Option Board manual in this case. The Voice Storage schematic and the related PCBs are shown in Tables 3-3 and 3-4 below.
  • Page 354 UHF2 PCB/SCHEMATICS/PARTS LISTS Table 3-3 UHF2 GP1280 Drawings and Parts Lists PCB : 8485677Z02 Main Board Top Side Page 3-29 Main Board Bottom Side Page 3-30 SCHEMATICS Controls and Switches Page 3-7 Receiver Front End Page 3-8 Receiver Back End Page 3-9 Synthesizer Page 3-10...
  • Page 355 Allocation of Schematics and Circuit Boards Table 3-6 UHF2 Drawings and Parts Lists PCB : 8415235H01/H05 (EPP) Main Board Top Side (8415235H01) Page 3-57 Main Board Bottom Side (8415235H01) Page 3-58 Main Board Top Side (8415235H05) Page 3-59 Main Board Bottom Side (8415235H05) Page 3-60 SCHEMATICS Controls and Switches (8415235H01)
  • Page 356 UHF2 PCB/SCHEMATICS/PARTS LISTS THIS PAGE INTENTIONALLY LEFT BLANK...

  • Page 357: Uhf2 Pcb 8485641Z02 Schematics

    UHF2 PCB 8485641Z02 Schematics UHF2 PCB 8485641Z02 Schematics R410 C423 E407 E409 PB503 PB502 PB504 PB501 R437 E408 R418 C505 VR440 C521 SH323 R300 VR444 C502 R352 C397 FL201 B503 B504 R351 R334 R314 RT301 R316 R507 FL301 R321 CR310 VR501 C328 C362...
  • Page 358 UHF2 PCB 8485641Z02 Schematics UHF2 (450-527 MHz) Main Board Bottom Side...
  • Page 359 UHF2 PCB 8485641Z02 Schematics B501 L505 BATTERY_CONTACT 390nH RADIO_CODE 2 DATA UNSWB+ BATT_CODE 1 NEG BATT + F501 3 POS S502 CONN_J SWITCH BATT Ð MECH_SWB+ LI_ION B503 VR506 B504 C502 CR501 VR439 C503 0.47uF 6.8V 100pF Vdda R507 Vdda C505 6.8V VR501...
  • Page 360 UHF2 PCB 8485641Z02 Schematics DACRx C322 82pF R342 -63.8dBm@45.1MHz 100K L310 150nH C315 R308 R310 R305 C314 100pF 0.1uF R304 C380 R309 .01uF -51.7dBm@450.125MHz C321 CR306 L304 100pF 180nH C306 T301 XFMR C309 -52.6dBm@526.925MHz C308 100pF R306 R307 100pF 100K C312 100K C310...
  • Page 361 UHF2 PCB 8485641Z02 Schematics DEMOD R350 C348 C347 C345 C344 C346 100K 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF C390 C329 100pF 0.1uF C343 0.22uF R344 R345 R355 2.628V 3.185V C342 Q320 C357 C384 C383 BFQ67W 56pF 0.22uF 100pF C358 C341 1200pF C352 Vdd_FILTERED 12pF...
  • Page 362 3-10 UHF2 PCB 8485641Z02 Schematics U210 U211 TC7ST04FU C296 C265 C257 TC7ST04FU 100pF 0.1uF C258 .01uF U247 ADP3300 SWB+ C259 .01uF (SOURCE) CR201 C294 C293 C291 0.47uF 100pF 0.47uF L202 4V_3.3V U248 2.2uH LP2980 L203 C277 C278 2.2uH C229 100pF 10uF C230 C228...
  • Page 363 UHF2 PCB 8485641Z02 Schematics 3-11 C281 R245 100pF R242 C250 L243 4.3pF C276 C285 C286 4.6V 2.2uF 100pF RESONATOR 0.1uF C246 L281 L273 100pF R241 390nH 18nH C242 4.3pF C272 C273 1.1pF 0.1uF C243 L271 L242 R244 4.3pF 27nH 22nH RX_INJ C245 2.7pF...
  • Page 364 3-12 UHF2 PCB 8485641Z02 Schematics E101 R102 BEAD UNSWB+ L107 C123 10uF 33.47nH C114 100pF C172 C109 L106 0.1uF UNSWB+ 100pF 7.66nH Microstrio TX_OUT R106 Microstrio Q110 R172 C121 C160 L108 L112 R175 R191 4.22nH 100pF 56pF 390nH Microstrio C118 C111 C112 C113...

  • Page 365: Uhf2 Pcb8485641Z02 / Pcb8485677Z02 Parts List

    UHF2 PCB8485641Z02 / PCB8485677Z02 Parts List 3-13 UHF2 PCB8485641Z02 / Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description PCB8485677Z02 Parts List Ref. Part No. Ref. Part No. Ref. Part No. C165 2113743N50 100pF C259 2113743L41 0.01uF C331 2113743N50 100pF...
  • Page 366 3-14 UHF2 PCB8485641Z02 / PCB8485677Z02 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Ref. Part No. Ref. Part No. Ref. Part No. Ref. Part No. C410 2113928N01 0.1uF C480 2113928D08 10.0uF C719 2113928N01 0.1uF...
  • Page 367 UHF2 PCB8485641Z02 / PCB8485677Z02 Parts List 3-15 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Ref. Part No. Ref. Part No. Ref. Part No. Ref. Part No. PB503 4080523Z01 TACTILE PUSH BUTTON R245 0662057M59 R400 0662057N15...
  • Page 368 GP1280 only C120 2113743N25 9.1pF U720 5113818A01 SING SPLY IC C121 2113743N50 100pF used in GP1280 only * Motorola Depot Servicing only VR432 4805656W08 5.6V ZENER VR433 4805656W08 5.6V ZENER ** Not Field Serviceable VR434 4802245J51 ZENER 6.8V...

  • Page 369: Uhf2 Pcb 8485641Z06 Schematics

    UHF2 PCB 8485641Z06 Schematics 3-17 UHF2 PCB 8485641Z06 Schematics M400 M101 M301 C523 C522 VR442 VR441 C436 E404 C437 E405 R426 L505 C334 C345 R420 E406 R343 VR506 L330 C359 E403 C382 S502 C277 L331 C338 C330 R414 Q302 C358 Y201 B501 E402...
  • Page 370 3-18 UHF2 PCB 8485641Z06 Schematics R410 C423 E407 E409 PB503 PB502 PB504 PB501 R437 E408 R418 C505 VR440 C521 SH323 R300 C502 R352 VR444 C397 FL201 B504 B503 R334 R351 RT301 R316 R314 R507 FL301 R321 CR310 VR501 C328 C362 C363 R335 C325...
  • Page 371 UHF2 PCB 8485641Z06 Schematics 3-19 B501 L505 BATTERY_CONTACT 390nH RADIO_CODE 2 DATA UNSWB+ BATT_CODE 1 NEG BATT + 3 POS F501 S502 CONN_J SWITCH BATT Ð MECH_SWB+ LI_ION B503 B504 C502 VR506 CR501 VR439 C503 0.47uF 6.8V 100pF Vdda R507 Vdda C505 6.8V...
  • Page 372 3-20 UHF2 PCB 8485641Z06 Schematics DACRx C322 82pF R342 -63.8dBm@45.1MHz 100K L310 150nH R310 C315 R308 R305 C314 100pF 0.1uF R304 R309 C380 .01uF -51.7dBm@450.125MHz C321 CR306 L304 100pF C306 T301 180nH XFMR C309 -52.6dBm@526.925MHz C308 100pF R306 R307 100pF C312 100K 100K...
  • Page 373 UHF2 PCB 8485641Z06 Schematics 3-21 L331 R343 2.20uH Vdd_FILTERED Vdda C382 (SOURCE) 10uF DEMOD R350 C348 C347 C345 C344 C346 100K 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF C390 C329 100pF 0.1uF C343 0.22uF R344 R345 R355 2.628V 3.185V Q320 C342 C357 C384 C383 BFQ67W...
  • Page 374 3-22 UHF2 PCB 8485641Z06 Schematics U210 U211 TC7ST04FU C296 C265 C257 TC7ST04FU 0.1uF 100pF C258 .01uF U247 ADP3300 SWB+ C259 .01uF (SOURCE) CR201 C291 C294 C293 0.47uF 100pF 0.47uF 4V_3.3V L202 U248 2.2uH LP2980 L203 C277 C278 2.2uH C229 100pF 2.2uF C230 C228...
  • Page 375 UHF2 PCB 8485641Z06 Schematics 3-23 C281 R245 100pF R242 C250 L243 4.3pF C276 C285 C286 4.6V 2.2uF 100pF 0.1uF RESONATOR C246 L281 L273 100pF R241 390nH 18nH C242 4.3pF C272 C273 1.1pF 0.1uF C243 L271 L242 R244 4.3pF 27nH 22nH C245 RX_INJ 2.7pF...
  • Page 376 3-24 UHF2 PCB 8485641Z06 Schematics E101 R102 BEAD UNSWB+ L107 C123 33.47nH 10uF C114 100pF C172 C109 L106 0.1uF UNSWB+ 100pF 7.66nH Microstrio TX_OUT R106 Microstrio Q110 R172 C121 C160 L108 L112 R175 R191 4.22nH 100pF 56pF 390nH Microstrio C118 C111 C112 C113...

  • Page 377: Uhf2 Pcb8485641Z06 Parts List

    UHF2 PCB8485641Z06 Parts List 3-25 UHF2 PCB8485641Z06 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Part No. Part No. Part No. Circuit Motorola Description C166 2113743N50 100pF C254 2113743N14 3.3pF, 0.25 C322 2113743N48 82pF Part No. C169 2113743N09 2.0pF, 0.25...
  • Page 378 3-26 UHF2 PCB8485641Z06 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. C383 2113743N50 100pF C449 2113743N50 100pF C704 2113928N01 0.1uF E400 2480640Z01 Ferrite bead C384 2113743N44...
  • Page 379 UHF2 PCB8485641Z06 Parts List 3-27 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. L302 2479990B01 11.03nH R106 0662057M26 R307 0662057N23 100k R408 NOTPLACED L303 2462587V26 22nH, 5% R107...
  • Page 380 3.3V Regulator used in GP1280 only U301 5109632D83 LVZIF IC R708 0662057N41 560K * Motorola Depot Servicing only used in GP1280 only Reference designators with an asterisk indicate R709 0662057N47 1.0 MEG components which are not fieldreplaceable used in GP1280 only...
  • Page 381 UHF2 PCB 8485677Z02 (GP1280) Schematics 3-29 UHF2 PCB 8485677Z02 (GP1280) Schematics R410 E407 E409 PB502 PB501 PB503 PB504 R437 VR440 SH323 C521 R300 R352 C397 FL201 VR501 R314 RT301 R321 C328 C325 C362 C363 R335 U405 U406 R338 TP201 L325 J400 R506 C385...
  • Page 382 3-30 UHF2 PCB 8485677Z02 (GP1280) Schematics M400 C523 C522 E405 C437 L505 E404 VR506 L330 C359 E406 R703 C709 C708 C277 C338 R415 S502 C358 C357 R350 C344 C390 E402 C278 R344 C383 U248 C360 U301 R311 C719 C438 C346 C361 R312 C215...
  • Page 383 UHF2 PCB 8485677Z02 (GP1280) Schematics 3-31 Vddd CR700 3.29V C703 100pF C701 C702 0.1uF IF_CLK_1_VOICE XCLK SCLK C704 0.1uF ANA_NEG AUDOUT ANA_POS IF_VS_CS_1_VOICE Vddd VS_CS IF_DATA_1_VOICE MOSI U700 DATA MISO C707 C706 IF_MISO_1_VOICE ISD33000 0.1uF MISO IF_VS_INT_1_VOICE AMCAP R708 VS_INT 560K IF_VS_RAC_1_VOICE IF_RX_AUD_RTN_1_VOICE...
  • Page 384 3-32 UHF2 PCB 8485677Z02 (GP1280) Schematics THIS PAGE INTENTIONALLY LEFT BLANK...
  • Page 385 Voice Storage Parts List (GP1280) 3-33 Voice Storage Parts List (GP1280) * Motorola Depot Servicing only Reference designators with an asterisk indicate components which are not fieldreplaceable Circuit Motorola Description because they need to be calibrated with Part No. specialized factory equipment after installation.
  • Page 386 3-34 Voice Storage Parts List (GP1280) THIS PAGE INTENTIONALLY LEFT BLANK...
  • Page 387 UHF2 PCB 8485677Z03 (GP1280) Schematics 3-35 UHF2 PCB 8485677Z03 (GP1280) Schematics R410 E409 PB504 PB503 PB502 PB501 R437 E407 VR440 SH323 R300 C521 R352 C397 RT301 R314 R321 VR501 C363 C328 C362 C325 R335 U405 L325 TP201 J400 R338 R506 C385 R325 C353...
  • Page 388 3-36 UHF2 PCB 8485677Z03 (GP1280) Schematics M401 M300 M100 R132 R131 SH403 R471 C415 R130 CR105 Q410 R109 C440 C373 C430 R349 C476 R436 C414 C133 Q111 Q310 C450 C451 C172 R172 R330 R331 L281 C410 J101 CR241 C371 C372 R704 C409 CR243...
  • Page 389 UHF2 PCB 8485677Z03 (GP1280) Parts List 3-37 UHF2 PCB 8485677Z03 (GP1280) Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Parts List Ref. Part No. Ref. Part No. Ref. Part No. Circuit Motorola C135 2113743M08 22000pF C223 2113743M24 100000pF C279 2104993J02 2.2uF...
  • Page 390 3-38 UHF2 PCB 8485677Z03 (GP1280) Parts List Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Ref. Part No. Ref. Part No. Ref. Part No. Ref. Part No. C324 2113743N33 20pF C364 2113743L41 10000pF C403 2113743G24 2.2uF...
  • Page 391 UHF2 PCB 8485677Z03 (GP1280) Parts List 3-39 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Ref. Part No. Ref. Part No. Ref. Part No. Ref. Part No. C514 2113743N50 100pF CR304 4862824C01 Varactor L105 2462587N22 390nH...
  • Page 392 3-40 UHF2 PCB 8485677Z03 (GP1280) Parts List Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Ref. Part No. Ref. Part No. Ref. Part No. Ref. Part No. R104 0662057N15 R252 0662057M60 R332 NOTPLACED R421 0662057M81 R106...
  • Page 393 U102 5185765B26 PCIC VR506 4802245J73 Zener Diode 6.8V R703 0662057M74 U201 5185963A27 LVFRACN Synthesizer IC * Motorola Depot Servicing only R704 0662057N13 U210 5102463J61 Inverter Reference designators with an asterisk indicate components which are not fieldreplaceable R705 0662057N13 U211 5102463J61...
  • Page 394 3-42 UHF2 PCB 8485677Z03 (GP1280) Parts List THIS PAGE INTENTIONALLY LEFT BLANK...

  • Page 395: 10.0 Uhf2 Pcb 8486686Z02 Schematics

    UHF2 PCB 8486686Z02 Schematics 3-43 10.0 UHF2 PCB 8486686Z02 Schematics R410 C521 E407 E409 R437 C338 FL302 C325 VR501 C349 U405 TP201 J400 R506 SH201 C324 C220 Q505 L311 U247 R355 R505 SH323 L203 C426 C425 C260 C512 C513 Q502 C352 Q210 R310...
  • Page 396 3-44 UHF2 PCB 8486686Z02 Schematics UHF2 (450-527 MHz) Main Board Bottom Side...
  • Page 397 UHF2 PCB 8486686Z02 Schematics 3-45 RADIO_CODE BATTERY_CONTACT L505 UNSWB+ B501 390nH BATT_CODE DATA BATT+ F501 S502 BATT- CONN_J SWITCH MECH_SWB+ LI_ION B503 TAB2 B504 VR439 C503 VR506 C502 CR501 TAB1 6.8V 100pF 0.47uF R507 C505 6.8V VR501 100pF Vdda PB501 SWITCH VR440 C521...
  • Page 398 3-46 UHF2 PCB 8486686Z02 Schematics DACRx C322 82pF R342 100K L310 150nH C315 R308 R310 R305 C314 100pF 0.1uF R304 C380 R309 .01uF L304 C321 CR306 180nH 100pF C306 T301 XFMR C309 C308 R307 100pF R306 100pF 100K 100K C310 C312 C316 C318...
  • Page 399 UHF2 PCB 8486686Z02 Schematics 3-47 U302-1 TC7W04F C352 R345 R360 0.1uF FL303 U302-4 CFWC455E U302-3 PWR_GND TC7W04F OUT 2 R355 100K U302-2 TC7W04F BW_SEL C362 CR312 R321 R324 CR313 FL304 0.1uF 120K CFWC455G OUT 2 R361 R350 R358 C329 0.1uF C357 0.1uF FL302...
  • Page 400 3-48 UHF2 PCB 8486686Z02 Schematics U211 TC7ST04FU U210 TC7ST04FU C265 C257 C296 100pF 0.1uF C258 .01uF U247 ADP3300 C259 SWB+ .01uF (SOURCE) CR201 C291 0.47uF C294 C293 4V_3.3V L202 100pF 0.47uF U248 2.2uH L203 LP2980 C277 C278 2.2uH 100pF 2.2uF C229 C228 C230...
  • Page 401 UHF2 PCB 8486686Z02 Schematics 3-49 C281 R245 100pF R242 C250 L243 C276 C286 C285 4.3pF 2.2uF 0.1uF 100pF RESONATOR C246 L273 R241 L281 100pF 18nH 390nH C242 4.3pF C272 C273 1.1pF 0.1uF C243 L271 L242 R244 4.3pF 22nH 27nH RX_INJ C245 2.7pF TX_INJ...
  • Page 402 3-50 UHF2 PCB 8486686Z02 Schematics E101 BEAD R102 UNSWB+ L107 C123 33.47nH 10uF C114 100pF C172 0.1uF C109 L106 100pF UNSWB+ 7.66nH TX_OUT R106 Microstrip Microstrip Q110 R172 C160 L108 R191 L112 R175 C121 56pF 4.22nH 100pF 390nH Microstrip C118 100pF C111 C181...
  • Page 403 UHF2 PCB 8486686Z02 Schematics 3-51 ANT_BIAS SH100 C108 SHIELD L105 100pF 390nH TX_OUT HF SHIELD CR101 L104 L101 L102 12.39nH 12.39nH 12.39nH RX_IN CR102 C101 C102 C103 C104 C106 C107 100pF 6.2pF 13pF 6.2pF 4.7pF 3.3pF C188 R170 36pF RF_JACK R101 UHF2 (450-527 MHz) Harmonic Filter...
  • Page 404 3-52 UHF2 PCB 8486686Z02 Schematics THIS PAGE INTENTIONALLY LEFT BLANK...
  • Page 405 UHF PCB 8486686Z02 Parts List 3-53 11.0 UHF PCB 8486686Z02 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Part No. Part No. Part No. Circuit Motorola Description C166 2113743N50 100pF C256 2113743N19 5.1pF C324 2109445U40 20pF Part No.
  • Page 406 3-54 UHF PCB 8486686Z02 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. C408 2113743N50 100pF C480 2113928D08 10uF CR413 4802245J62 Diode Schottky L253 2460593C03 Multi-layered Teflon resonator,...
  • Page 407 UHF PCB 8486686Z02 Parts List 3-55 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. R101 0662057A34 R307 0662057N23 100K R402 NOTPLACED - R477 0662057M74 1000 R102 0680539Z01 R308...
  • Page 408 9186145B02 455kHz Ceramic Discriminator 1485777Z01 Insulator (KAPTON) 8486686Z02 UHF B2 PC Board * Motorola Depot Servicing only ** Not Field Serviceable Tolerance Capacitor - 5% unless specified otherwise Inductor - 10% unless specified otherwise Resistor - 5% unless specified otherwise...
  • Page 409 UHF2 PCB 8415235H01 & 8415235H05 Schematics (EPP) 3-57 12.0 UHF2 PCB 8415235H01 & 8415235H05 Schematics (EPP) R410 C521 E407 E409 R437 SH323 C338 FL302 VR501 C349 U405 C325 TP201 J400 R506 SH201 C220 Q505 L311 C324 R355 L203 R505 U247 C426 C425 C260...
  • Page 410 3-58 UHF2 PCB 8415235H01 & 8415235H05 Schematics (EPP) C522 VR444 VR442 C523 SH322 R376 C437 L505 E404 C334 E406 R373 C350 S502 R372 R374 C383 R366 R368 R359 R371 C359 R378 FL401 C327 R370 E401 C348 R375 C390 L325 Q302 R312 C279 R344...
  • Page 411 UHF2 PCB 8415235H01 & 8415235H05 Schematics (EPP) 3-59 R410 C392 C521 C597 E407 E409 R437 C387 C338 FL302 C389 C349 C599 VR501 U405 C325 TP201 J400 R506 C598 SH201 C324 Q505 C220 L311 L203 SH323 R355 R505 U247 C426 C425 C260 Q502 C512...
  • Page 412 3-60 UHF2 PCB 8415235H01 & 8415235H05 Schematics (EPP) C522 VR444 VR442 C523 C436 E404 R376 L505 C334 C437 R373 E406 C350 E403 S502 R374 R372 C383 R366 R368 R359 E402 C359 R371 R378 C327 FL401 R375 E401 C348 R370 C390 L325 Q302 R312...
  • Page 413 UHF2 PCB 8415235H01 & 8415235H05 Schematics (EPP) 3-61 RADIO_CODE BATTERY_CONTACT L505 UNSWB+ B501 390nH DATA BATT_CODE BATT+ F501 S502 BATT- CONN_J SWITCH MECH_SWB+ LI_ION B503 TAB2 B504 VR506 VR439 C503 C502 CR501 TAB1 100pF 6.8V 0.47uF R507 6.8V C505 VR501 100pF Vdda PB501...
  • Page 414 3-62 UHF2 PCB 8415235H01 & 8415235H05 Schematics (EPP) S502_SWITCH_P5 RADIO_CODE UNSWB+ FUSE_B+ E107 BLM18PG121SN1 L505 B501 C598 C599 E106 BATTERY_CONTACT 390nH 3.9pF 4.7pF BLM18PG121SN1 C597 BATT_CODE DATA 43pF E102 BATT+ F501 BLM21PG221SN1 CONN_J FUSE_B+ S502 BATT- MECH_SWB+ SWITCH VR439 LI_ION B503 C605 C503...
  • Page 415 UHF2 PCB 8415235H01 & 8415235H05 Schematics (EPP) 3-63 DACRx C322 82pF R342 100K L310 150nH C315 R308 R310 R305 C314 100pF 0.1uF R304 C380 R309 .01uF L304 C321 CR306 180nH 100pF C306 T301 XFMR C309 C308 R307 100pF R306 100pF 100K 100K C312...
  • Page 416 3-64 UHF2 PCB 8415235H01 & 8415235H05 Schematics (EPP) DACRx C322 82pF C391 R342 100K 24pF L310 150nH C315 R308 R310 R305 C314 100pF 0.1uF R304 C380 R309 .01uF L304 C321 CR306 180nH 100pF C306 T301 XFMR C309 C308 100pF R306 R307 100pF 100K...
  • Page 417 UHF2 PCB 8415235H01 & 8415235H05 Schematics (EPP) 3-65 U302-1 TC7W04F C352 R345 R360 0.1uF FL303 U302-4 CFWC455E U302-3 PWR_GND TC7W04F OUT 2 R355 100K U302-2 TC7W04F BW_SEL C362 CR312 R324 R321 CR313 FL304 0.1uF 120K CFWC455G OUT 2 R361 R350 R358 C329 0.1uF...
  • Page 418 3-66 UHF2 PCB 8415235H01 & 8415235H05 Schematics (EPP) U302-1 TC7W04F C352 R345 R360 0.1uF FL303 U302-4 PWR_GND CFWC455E U302-3 OUT 2 TC7W04F C386 C387 24pF 24pF R355 100K U302-2 TC7W04F BW_SEL R324 C362 CR312 CR313 R321 FL304 0.1uF CFWC455G OUT 2 C388 C389 24pF...
  • Page 419 UHF2 PCB 8415235H01 & 8415235H05 Schematics (EPP) 3-67 U211 TC7ST04FU U210 TC7ST04FU C296 C265 C257 0.1uF 100pF C258 .01uF U247 ADP3300 SWB+ C259 .01uF (SOURCE) CR201 C291 0.47uF C294 C293 4V_3.3V L202 100pF 0.47uF U248 2.2uH L203 LP2980 C277 C278 2.2uH 100pF 2.2uF...
  • Page 420 3-68 UHF2 PCB 8415235H01 & 8415235H05 Schematics (EPP) C281 R245 100pF R242 C250 L243 C276 C286 C285 4.3pF 2.2uF 0.1uF 100pF RESONATOR C246 L273 R241 L281 100pF 18nH 390nH C242 4.3pF C272 1.1pF C273 0.1uF C243 L242 L271 R244 4.3pF 22nH 27nH RX_INJ...
  • Page 421 UHF2 PCB 8415235H01 & 8415235H05 Schematics (EPP) 3-69 E101 BEAD R102 UNSWB+ L107 C123 33.47nH 10uF C114 100pF C172 0.1uF C109 L106 UNSWB+ 100pF 7.66nH TX_OUT R106 Microstrip Microstrip Q110 R172 C160 L112 L108 R191 C121 R175 56pF 4.22nH 100pF 390nH Microstrip C118...
  • Page 422 3-70 UHF2 PCB 8415235H01 & 8415235H05 Schematics (EPP) FUSE_B+ E101 R102 BEAD 0.075 L107 C114 C123 33.47nH 100pF 10uF C172 100pF C109 L106 100pF 7.66nH Microstrip Microstrip TX_OUT R106 R172 Q110 L109 C121 C160 L112 L108 R175 100pF 11.03nH 100pF 22nH 4.22nH Microstrip...
  • Page 423 UHF2 PCB 8415235H01 & 8415235H05 Schematics (EPP) 3-71 ANT_BIAS SH100 C108 SHIELD L105 100pF 390nH TX_OUT HF SHIELD CR101 L104 L101 L102 12.39nH 12.39nH 12.39nH RX_IN CR102 C101 C102 C103 C104 C106 C107 100pF 6.2pF 13pF 6.2pF 4.7pF 3.3pF C188 R170 36pF RF_JACK...
  • Page 424 3-72 UHF2 PCB 8415235H01 & 8415235H05 Schematics (EPP) ANT_BIAS C108 SH100 100pF SHIELD L105 390nH TX_OUT HF SHIELD CR101 L102 L101 L104 12.39nH 12.39nH 12.39nH RX_IN C101 C102 C103 C104 C106 C107 100pF 7.5pF 13pF 7.5pF 4.7pF 3.3pF CR102 C188 R170 36pF RF_JACK...
  • Page 425 UHF2 PCB 8415235H01 Parts List 3-73 13.0 UHF2 PCB 8415235H01 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Part No. Part No. Part No. Circuit Motorola Description C125 2113944A40 CAP CER CHP 100.0PF 50V C174 2113944A40 CAP CER CHP 100.0PF 50V...

  • Page 426: Uhf2 Pcb 8415235H01 Parts List

    3-74 UHF2 PCB 8415235H01 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. C281 2113944A40 CAP CER CHP 100.0PF 50V C317 2113944A73 CAP,FXD,8PF,.5PF+/-,50V- C372 2113944A40 CAP CER CHP 100.0PF 50V...
  • Page 427 UHF2 PCB 8415235H01 Parts List 3-75 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. C463 2113944A40 CAP CER CHP 100.0PF 50V C513 2113944A40 CAP CER CHP 100.0PF 50V...
  • Page 428 3-76 UHF2 PCB 8415235H01 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. J601 0980521Z03 CONN, ZIF VERTICAL, L306 2479990B01 AIR WOUND COIL/GREEN Q417 4815055H01 XSTR,GEN PURPOSE...
  • Page 429 UHF2 PCB 8415235H01 Parts List 3-77 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. R303 0613952Q77 CER CHIP RES 1500 OHM R345 0613952R15 CER CHIP RES 39K OHM 5%...
  • Page 430 3-78 UHF2 PCB 8415235H01 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. R498 0613952R01 CER CHIP RES 10K OHM 5% R621 0613952Q73 CER CHIP RES 1000 OHM...

  • Page 431: 14.0 Uhf2 Pcb 8415235H05 Parts List

    UHF2 PCB 8415235H05 Parts List 3-79 14.0 UHF2 PCB 8415235H05 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Part No. Part No. Part No. Circuit Motorola Description C116 2113944A77 CAP,FXD,11PF,+5%,- C138 2113944A40 CAP CER CHP 100.0PF C201 2113944A40 CAP CER CHP 100.0PF...
  • Page 432 3-80 UHF2 PCB 8415235H05 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. C231 2113946K02 CAP CER CHP 0.10UF 16V C256 2113944A18 CAP CER CHP 5.1PF 50V...
  • Page 433 UHF2 PCB 8415235H05 Parts List 3-81 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. C345 2113946K02 CAP CER CHP 0.10UF 16V C375 2113944A40 CAP CER CHP 100.0PF C400 2113944A40 CAP CER CHP 100.0PF...
  • Page 434 3-82 UHF2 PCB 8415235H05 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. C448 2113946B04 CAP CER CHP 0.10UF 10V C481 2113946B04 CAP CER CHP 0.10UF 10V...
  • Page 435 UHF2 PCB 8415235H05 Parts List 3-83 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. CR160 NOT- CR413 4815067H01 DIODE E408 2480640Z01 SURFACE MOUNT FER- J101 0985613Z01 JACK,RF PLACED...
  • Page 436 3-84 UHF2 PCB 8415235H05 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. L232 2415844H01 CHIP IND 12000 NH 5% L330 2414017K33 IND CER CHIP 680.0 NH...
  • Page 437 UHF2 PCB 8415235H05 Parts List 3-85 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. R231 0613952Q51 CER CHIP RES 120 OHM R303 0613952Q77 CER CHIP RES 1500 OHM...
  • Page 438 3-86 UHF2 PCB 8415235H05 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. R405 0613952R66 CER CHIP RES 0.0 +/- R427 0613952Q83 CER CHIP RES 2700 OHM...
  • Page 439 UHF2 PCB 8415235H05 Parts List 3-87 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. R618 0613952Q73 CER CHIP RES 1000 OHM SH201 2680511Z02 SHIELD, SYNTHESIZER U247 5115026H01 IC,LOW DROP-...
  • Page 440 3-88 UHF2 PCB 8415235H05 Parts List Circuit Motorola Description Part No. B503 3980502Z01 CONTACT, BACKUP B+ B504 3980501Z01 CONTACT, BACKUP B- C101 2113944C45 CAP CER CHP 100.0PF 50V 5% C102 2113944C72 CAP,FXD,6.2PF,.25PF+/- ,50V-DC,060 C103 2113944C77 CAP,FXD,11PF,+5%,- 5%,50V-DC,0603,C C104 2113944C72 CAP,FXD,6.2PF,.25PF+/-...
  • Page 441 Professional Radio GP Series 800 MHz (806 - 870MHz) Service Information Issue: July 2007...
  • Page 442 Accordingly, any copyrighted Motorola computer programs contained in the Motorola products described in this manual may not be copied or reproduced in any manner without the express written permission of Motorola. Furthermore, the purchase of Motorola...
  • Page 443 Table of Contents Chapter 1 THEORY OF OPERATION 1.0 Introduction ......................1-1 2.0 800 MHz Transmitter ...................1-1 2.1 Power Amplifier ....................1-1 2.2 Antenna Switch....................1-2 2.3 Harmonic Filter ....................1-2 2.4 Antenna Matching Network ................1-2 2.5 Power Control Integrated Circuit (PCIC) ............1-2 3.0 800 MHz Receiver ....................1-3 3.1 Receiver Front-End ..................1-3 3.2 Receiver Back-End..................1-4 3.3 Automatic Gain Control (AGC) ...............1-5...
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  • Page 445: Chapter 1 Theory Of Operation

    Chapter 1 THEORY OF OPERATION Introduction This Chapter provides a detailed theory of operation for the UHF circuits in the radio. For details of the theory of operation and trouble shooting for the the associated Controller circuits refer to the Controller Section of this manual.

  • Page 446: Antenna Switch

    THEORY OF OPERATION This RF driver IC is capable of supplying an output power of 0.3W (pin 13 and 14) with an input signal of 2.5 mW (4 dBm) (pin16). The current drain would typically be 200 mA while operating in the frequency range of 806-870 MHz.

  • Page 447: 800 Mhz Receiver

    800 MHz Receiver 800 MHz Receiver The receiver functions are shown in Figure 2-20 and are described in the paragraphs that follow. Antenna Pin Diode 3-Pole 3-Pole Antenna Ceramic Ceramic Crystal RFJack Switch Block Filter Block Filter Mixer Filter Processing First LO from FGU Recovered Audio...

  • Page 448: Receiver Back-End

    THEORY OF OPERATION The IF signal coming out of the mixer is transferred to the crystal filter (FL350) through a resistive pad and a diplexer (C312 and L306). Matching to the input of the crystal filter is provided by L353,L354, C377, and C378. The crystal filter provides the necessary selectivity and intermodulation protection.

  • Page 449: Automatic Gain Control (Agc)

    800 MHz Receiver Automatic Gain Control (AGC) (Refer to the 800 MHz Receiver Front End and Receiver Back End schematic diagrams) The automatic gain control circuit provides automatic gain reduction of both the low noise amplifier in the receiver front end and the IF amplifier in the receiver backend. This action is necessary to prevent overloading of the backend IF IC.

  • Page 450: Frequency Generation Circuit

    THEORY OF OPERATION Frequency Generation Circuit (Refer to Figure 2-3 and the 800 MHz Frequency Synthesizer schematic diagram) The frequency generation circuit is shown in Figure 2-21. The circuit is composed of the two main ICs: ■ Fractional-N synthesizer, U201 ■...

  • Page 451: Synthesizer

    Frequency Generation Circuit Synthesizer (Refer to Figure 2-4 and the 800 MHz Synthesizer schematic diagram) The Fractional-N Synthesizer uses a 16.8MHz crystal (FL201) to provide a reference for the system. The LVFractN IC (U201) further divides this to 2.1MHz, 2.225MHz, and 2.4MHz as reference frequencies.

  • Page 452: Voltage Controlled Oscillator (Vco)

    THEORY OF OPERATION Voltage Controlled Oscillator (VCO) (Refer to Figure 2-5 and the 800 MHz Voltage Controlled Oscillator schematic diagram) The VCOBIC (U250) in conjunction with the Fractional-N synthesizer (U201) generates RF in both the receive and the transmit modes of operation. The TRB line (U250 pin 19) determines which oscillator and buffer will be enabled.

  • Page 453: Trunked Radio System

    Privacy Plus Trunked Systems 4.3.1 Privacy Plus is a proprietary trunking protocol developed by Motorola which allows a large number of users to share small amounts of frequencies without interfering with each other. The Privacy Plus configuration consists of shared multiple channel repeaters. The Privacy Plus Trunked system includes a Central Controller, which directs the users to the open channels.
  • Page 454 1-10 THEORY OF OPERATION 4.3.3 MPT Trunked Systems MPT (Ministry of Post and Telecommunications) developed a signalling standard (MPT1327) for trunked private land mobile radio systems. This standard defines the protocol rules for communication between a trunking system controller (TSC) and user’s radio units. The protocol offers a broad range of options which can be implemented in subsets according to user requirements.
  • Page 455 Frequency Generation Circuit 1-11 Low Speed Data Filter This analog circuitry is a 4 pole, 150 Hz cutoff low pass filter comprised of U603-1, U603-2 and associated passive components. In receive mode, it removes noise and voice band signals leaving only the low speed data waveform which is applied to the ADC input of the MCU.
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  • Page 457: Chapter 2 Troubleshooting Charts

    Chapter 2 TROUBLESHOOTING CHARTS Troubleshooting Flow Chart for Receiver (Sheet 1 of 2) START Bad SINAD Bad 20dB Quieting No Recovered Audio udio Check Controller at pin 27 of U351? Spray of inject 1st IF into XTAL Filter IF Freq: 109.65MHz Check Q350 bias circuitry for faults.

  • Page 458: Troubleshooting Flow Chart For Receiver (Sheet 2 Of 2)

    TROUBLESHOOTING CHARTS Troubleshooting Flow Chart for Receiver (Sheet 2 of 2) Inject RF into J101 Trace IF signal the level of Signal from L353 to the IF signal of the at L353 U352. Check for output of U352 as bad XTAL filter. indicated Before replacing U351, check...

  • Page 459: Troubleshooting Flow Chart For Transmitter

    Troubleshooting Flow Chart for Transmitter Troubleshooting Flow Chart for Transmitter START Low Power No Power No Power out or Low Power overall radio current between 0.8 and 1.3 A when transmitting there a Replace F501 the fuse F501 Check L101, L102, short circuit C101, CR101 for after C113...

  • Page 460: Troubleshooting Flow Chart For Synthesizer

    TROUBLESHOOTING CHARTS Troubleshooting Flow Chart for Synthesizer Start 3.3V at U201 pins Check 5, 20, 34& U248 & L202 Visual Correct check of the Check Problem Board OK D201,D202, C244, C245, C246 & C228 U201 16.8MHz 16.8MHz at pin 6 of Pin47 AT = Replace Signal at...

  • Page 461: Troubleshooting Flow Chart For Vco

    Troubleshooting Flow Chart for VCO Troubleshooting Flow Chart for VCO START Is Tx signal Is LO signal VCO is OK. present at the PA present at the driver IC, U101? mixer IC U301? Resolder or Is resonator IC replace U205 soldered U205.

  • Page 462: Troubleshooting Flow Chart For Passport Trunking

    TROUBLESHOOTING CHARTS Troubleshooting Flow Chart for PassPort Trunking Start Check Radio Operation on a Non PassPort Zone with a Conventional Personality without the Option Board Enabled Check Radio PassPort Programming using CPS Check Switched Battery and Vdd from Radio on PTCB Check Radio PassPort Programming using CPS Demod...

  • Page 463: 800 Mhz Pcb/Schematics/Parts Lists

    Chapter 3 800MHZ /PCB/SCHEMATICS/PARTS LIST Allocation of Schematics and Circuit Boards Controller Circuits The 800MHz circuits are contained on the printed circuit board (PCB) which also contains the Controller circuits. This chapter shows the schematics for the 800MHz circuits only, refer to the Controller section for details of the related Controller circuits.The PCB component layouts and the Parts Lists in this Chapter show both the Controller and UHF circuit components.
  • Page 464 800MHz /PCB/schematics/Parts list THIS PAGE INTENTIONALLY LEFT BLANK...
  • Page 465 800MHz PCB 8480641Z02, 8480641Z03, 8480641Z09, 8480641Z10 / Schematics 800MHz PCB 8480641Z02, 8480641Z03, 8480641Z09, 8480641Z10 / Schematics R410 SH352 PB504 E407 PB503 PB502 PB501 E409 R437 C521 SH351 VR504 R355 C371 FL201 C391 C392 FL350 U352 L357 R365 R360 VR501 R362 R358 U405 C386...
  • Page 466 800MHz PCB 8480641Z02, 8480641Z03, 8480641Z09, 8480641Z10 / Schematics M502 M501 M400 8 4 8 0 6 4 1 Z 0 2 C523 L505 E405 C437 C383 R350 C381 E404 R214 C380 C350 E406 VR503 S502 C238 C374 C372 L350 C210 C355 E402 FL401...
  • Page 467 800MHz PCB 8480641Z02, 8480641Z03, 8480641Z09, 8480641Z10 / Schematics R410 SH352 PB504 E407 PB503 PB502 PB501 E409 R437 SH351 C521 VR504 R355 C371 FL201 C391 C392 FL350 U352 L357 R365 R360 VR501 R362 R358 U405 C386 R366 C393 U406 TP201 J400 R506 L356 L352...
  • Page 468 800MHz PCB 8480641Z02, 8480641Z03, 8480641Z09, 8480641Z10 / Schematics M502 M501 M400 8 4 8 0 6 4 1 Z 0 3 C523 L505 E405 C437 C381 C383 R350 E404 R214 C380 C350 VR503 E406 S502 C238 C374 C372 L350 C210 C355 E402 FL401...
  • Page 469 800MHz PCB 8480641Z02, 8480641Z03, 8480641Z09, 8480641Z10 / Schematics R410 E409 SH352 E407 R437 VR504 C521 C371 C391 R355 C392 FL350 U352 L357 R365 R360 VR501 R362 C386 R358 U405 C393 R366 TP201 J400 R506 L352 L356 L353 C390 R364 R356 C239 Q505 R213...
  • Page 470 800MHz PCB 8480641Z02, 8480641Z03, 8480641Z09, 8480641Z10 / Schematics 800 MHz (806-870MHz) Main Board Bottom Side PCB No. 8480641Z09 (Rev H)
  • Page 471 800MHz PCB 8480641Z02, 8480641Z03, 8480641Z09, 8480641Z10 / Schematics R410 E407 E409 SH352 R437 VR504 C521 R355 C371 C391 L357 C392 FL350 U352 R365 R360 VR501 R358 C386 U405 R362 C393 R366 TP201 J400 R506 L356 L352 L353 R213 C390 R364 C239 C216 R356...
  • Page 472 800MHz PCB 8480641Z02, 8480641Z03, 8480641Z09, 8480641Z10 / Schematics 3-10 M502 M501 M400 C523 E405 C437 L505 C381 C383 R350 R214 E404 VR503 C380 C350 E406 C238 S502 C374 C355 C210 C372 L350 E402 FL401 C370 E401 R354 C367 C373 U248 R415 C369 C533...
  • Page 473 800MHz PCB 8480641Z02, 8480641Z03, 8480641Z09, 8480641Z10 / Schematics 3-11 L505 390nH RADIO_CODE UNSWB+ BATT_CODE F501 B501 DATA BATT- BATTERY_CONTACT S502 MECH_SWB+ BATT+ C502 VR502 0.47uF TAB2 C526 C530 C524 C525 CR501 VR503 82pF 18pF 82pF C503 10uF TAB1 6.8V 68pF CHASSIS_CONTACTS R507 M501...
  • Page 474 800MHz PCB 8480641Z02, 8480641Z03, 8480641Z09, 8480641Z10 / Schematics 3-12 RADIO_CODE UNSWB+ BATT_ID CONN_J B501 F501 DATA BATT- BATTERY_CONTACT SWITCH S502 MECH_SWB+ BATT+ C502 VR502 TAB2 0.47uF C526 C537 C524 C525 CR501 82pF 18pF 82pF C503 10uF TAB1 68pF R507 SWB+ C505 6.8V Vdda...
  • Page 475 800MHz PCB 8480641Z02, 8480641Z03, 8480641Z09, 8480641Z10 / Schematics 3-13 L350 R350 Vdda 2.2µH C350 C352 10µF AGC Processing .022µF 2.5V Note 2 3V Note 3 U350 FE_AGC C353 0.22µF C354 R351 R352 L351 .022µF RSSI 390nH R353 R355 1.53V Note 2 R354 C355 4700pF...
  • Page 476 800MHz PCB 8480641Z02, 8480641Z03, 8480641Z09, 8480641Z10 / Schematics 3-14 PB503 L505 LI_ION B503 BATT_CODE BATT_ID 390nH L200 B504 VR506 VR503 C523 6.8V 6.8V .01µF 2.2µH C206 C207 2.2µF 0.1µF C244 PB502 .01µF C245 U247 R200 C522 D201 .01µF VR505 .01µF SWB+ 6.8V C246...
  • Page 477 800MHz PCB 8480641Z02, 8480641Z03, 8480641Z09, 8480641Z10 / Schematics 3-15 DATA_2_VCO 4.6 V Super Filter DATA Supply from U201 CLK_2_VCO RX VCO Components CSX_2_VCO R256 C255 R255 Freq Range R264 L259 UNSWB+_2_VCO 741 to 761 MHz 0.5pF UNSWB+ C259 C262 220nH U205 2.2µF 0.1µF...
  • Page 478 800MHz PCB 8480641Z02, 8480641Z03, 8480641Z09, 8480641Z10 / Schematics 3-16 PB503 L505 SWITCH LI_ION_1_FN BATT_CODE_1_FN 390nH BATT_ID_1_FN SB3_1_FN LI_ION B503 BATT_CODE BATT_ID L200 2.2uH VR503 VR506 B504 C523 6.8V .01uF 6.8V C206 C207 0.1uF 2.2uF PB502 .01uF SWITCH SB2_1_FN C244 .01uF .01uF U247 R200...
  • Page 479 800MHz PCB 8480641Z02, 8480641Z03, 8480641Z09, 8480641Z10 / Schematics 3-17 6V to 9V E101 C158 BEAD R101 R104 56pF UNSWB+ C160 C161 C162 R102 C163 C164 C152 C153 82pF 68pF 18pF 68pF 18pF E102 68pF 18pF 0.07V to 0.12V C108 L104 C159 C112 C147...
  • Page 480 800MHz PCB 8480641Z02, 8480641Z03, 8480641Z09, 8480641Z10 / Schematics 3-18 E101 BEAD C158 R101 R104 56pF UNSWB+ C161 C160 C162 R102 C163 C164 82pF C152 C153 68pF 18pF 68pF 18pF E102 68pF 18pF 0.07V to 0.12V C108 L104 C159 C112 C147 68pF 18pF 220nH...
  • Page 481 800MHz PCB 8480641Z02, 8480641Z03, 8480641Z09, 8480641Z10 / Schematics 3-19 6V to 9V E101 C158 R101 R104 BEAD 56pF UNSWB+ C160 C161 C162 R102 C163 C164 C152 C153 82pF 68pF 18pF 68pF 18pF E102 68pF 18pF 0.07V to 0.12V C108 L104 C159 C112 C147...
  • Page 482 800MHz PCB 8480641Z02, 8480641Z03, 8480641Z09, 8480641Z10 / Schematics 3-20 6V to 9V E101 R104 C158 BEAD R101 UNSW_LPLUS_3_PA 56pF UNSWB+ C160 C161 C162 C163 C164 R102 68pF 18pF 82pF 68pF 18pF C152 C153 E102 18pF 68pF 88Z01 0.07V to 0.12V L104 C159 C112...

  • Page 483: 800Mhz Pcb Parts List

    800MHz PCB Parts List (Rev A/B) 3-21 800MHz PCB Parts List (Rev A/B) Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Part No. Part No. Part No. Circuit Motorola Description C157 2113743N46 Capacitor Chip 68pF C238 2113743M24 Capacitor Chip 0.1µF...
  • Page 484 800MHz PCB Parts List (Rev A/B) 3-22 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. C401 to 2113743M24 Capacitor Chip 0.1µF C471 to 2113743N46 Capacitor Chip 68pF E400 to...
  • Page 485 800MHz PCB Parts List (Rev A/B) 3-23 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. R108 0662057N08 Resistor Chip 24K R275 0662057M26 Resistor Chip 10 R426 0662057N35 Resistor Chip 330K...
  • Page 486 2113743N12 Capacitor Chip 2.7pF C128 2113743N44 Capacitor Chip 56pF * Motorola Depot Servicing only Reference designators with an asterisk indicate components which are not fieldreplaceable because they need to be calibrated with specialized factory equipment after installation. Radios in which these parts have been replaced in the field will be off frequency at temperature extremes.
  • Page 487 800MHz PCB Parts List (Rev A/B) 3-25 800 MHz Radio Parts List (Rev H) Motorola Motorola Motorola Circuit Ref Description Circuit Ref Description Circuit Ref Description Part No. Part No. Part No. Motorola Circuit Ref Description C162 2113743N48 Capacitor Chip 82pF...
  • Page 488 800MHz PCB Parts List (Rev A/B) 3-26 Motorola Motorola Motorola Motorola Circuit Ref Description Circuit Ref Description Circuit Ref Description Circuit Ref Description Part No. Part No. Part No. Part No. C414 2113743M24 Capacitor Chip 0.1µF C531 2113743N48 Capacitor Chip 82pF...
  • Page 489 800MHz PCB Parts List (Rev A/B) 3-27 Motorola Motorola Motorola Motorola Circuit Ref Description Circuit Ref Description Circuit Ref Description Circuit Ref Description Part No. Part No. Part No. Part No. R214 0662057N15 Resistor Chip 47K R365 0662057M87 Resistor Chip 3.6K...
  • Page 490 800MHz PCB Parts List (Rev A/B) 3-28 Motorola Circuit Ref Description Part No. VR502 4880140L17 Diode Zener MMBZ5242B VR503 to 4802245J73 Diode Zener UDZSTE17 VR508 Y200 4802245J68 Oscillator Crystal TTS12V(PMUF1063 & PMUF1064 only) 8480641Z09 PC Board, 800MHz...
  • Page 491 800MHz PCB Parts List (Rev A/B) 3-29 800 MHz Radio Parts List (Rev J) Motorola Motorola Motorola Circuit Ref Description Circuit Ref Description Circuit Ref Description Part No. Part No. Part No. Motorola Circuit Ref Description C162 2113743N48 Capacitor Chip 82pF...
  • Page 492 800MHz PCB Parts List (Rev A/B) 3-30 Motorola Motorola Motorola Motorola Circuit Ref Description Circuit Ref Description Circuit Ref Description Circuit Ref Description Part No. Part No. Part No. Part No. C414 2113743M24 Capacitor Chip 0.1µF C531 2113743N48 Capacitor Chip 82pF...
  • Page 493 800MHz PCB Parts List (Rev A/B) 3-31 Motorola Motorola Motorola Motorola Circuit Ref Description Circuit Ref Description Circuit Ref Description Circuit Ref Description Part No. Part No. Part No. Part No. R213 0662057M50 Resistor Chip 100 R362 0662057M98 Resistor Chip 10K...
  • Page 494 Motorola Circuit Ref Description Part No. VR501 4813830A18 Diode Zener MMBZ5235BLT1 VR502 4880140L17 Diode Zener MMBZ5242B VR503 to 4802245J73 Diode Zener UDZSTE17 VR508 Y200 4802245J68 Oscillator Crystal TTS12V(PMUF1063 & PMUF1064 only) 8480641Z10 PC Board, 800MHz * Motorola Depot Servicing only...

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