Panasonic KX-TGH262B Service Manual

Digital cordless answering system link-to-cell bluetooth convergence solution
Table of Contents

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KX-TGHA20
(Handset)
(Charger Unit)
Configuration for each model
Model No
Base Unit
KX-TGH260 1 (TGH260) 1 (TGHA20)
KX-TGH262 1 (TGH260) 2 (TGHA20)
KX-TGH263 1 (TGH260) 3 (TGHA20)
KX-TGH264 1 (TGH260) 4 (TGHA20)
KX-TGHA20*
*KX-TGHA20 is also an optional accessory, which contains a
handset and a charger.
KX-TGH260
(Base Unit)
Handset
Charger Unit Expandable
Up to 6
1
Up to 6
2
Up to 6
3
Up to 6
1 (TGHA20)
1
Telephone Equipment
KX-TGH260B
Model No.
KX-TGH262B
KX-TGH263B
KX-TGH264B
KX-TGHA20B
Digital Cordless Answering System
Link-to-Cell Bluetooth Convergence
Solution
Black
B:
Version
(for U.S.A.)
© Panasonic System Networks Co., Ltd. 2014
Unauthorized copying and distribution is a violation
of law.
ORDER NO. KM41402790CE
F13

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Summary of Contents for Panasonic KX-TGH262B

  • Page 1 KX-TGH264 1 (TGH260) 4 (TGHA20) Up to 6 KX-TGHA20* 1 (TGHA20) *KX-TGHA20 is also an optional accessory, which contains a handset and a charger. © Panasonic System Networks Co., Ltd. 2014 Unauthorized copying and distribution is a violation of law.
  • Page 2 KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 WARNING This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product. Products powered by electricity should be serviced or repaired only by experienced professional technicians.
  • Page 3: Table Of Contents

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 TABLE OF CONTENTS PAGE PAGE 1 Safety Precautions----------------------------------------------- 5 10.1.10. Check Handset Reception ------------------------ 44 1.1. For Service Technicians --------------------------------- 5 10.1.11. Check Caller ID ------------------------------------- 44 2 Warning -------------------------------------------------------------- 5 10.1.12. Check BT Communication ------------------------ 45 2.1. Battery Caution--------------------------------------------- 5 11 Disassembly and Assembly Instructions--------------- 47 2.2.
  • Page 4 16.2. Cabinet and Electrical Parts (Handset) ------------- 84 16.3. Cabinet and Electrical Parts (Charger Unit) ------- 85 16.4. Accessories and Packing Materials ----------------- 86 16.4.1. KX-TGH260B----------------------------------------- 86 16.4.2. KX-TGH262B----------------------------------------- 87 16.4.3. KX-TGH263B----------------------------------------- 88 16.4.4. KX-TGH264B----------------------------------------- 89 16.4.5. KX-TGHA20B ---------------------------------------- 90 16.5.
  • Page 5: Safety Precautions

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 1 Safety Precautions 1.1. For Service Technicians • Repair service shall be provided in accordance with repair technology information such as service manual so as to prevent fires, injury or electric shock, which can be caused by improper repair work. 1.
  • Page 6: Suggested Pbf Solder

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 2.2.1. Suggested PbF Solder There are several types of PbF solder available commercially. While this product is manufactured using Tin, Silver, and Copper (Sn+Ag+Cu), you can also use Tin and Copper (Sn+Cu), or Tin, Zinc, and Bismuth (Sn+Zn+Bi). Please check the manufacturer's specific instructions for the melting points of their products and any precautions for using their product with other materials.
  • Page 7: Specifications

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 3 Specifications █ Standard: █ █ Bit rate: DECT 6.0 (Digital Enhanced Cordless 1.152Mbit/s (DECT 6.0) Telecommunications 6.0) 1.0 Mbit/s (Bluetooth) Bluetooth wireless technology 2.1 █ █ Modulation: █ Number of channels: GFSK (Gaussian Frequency Shift Keying) 60 Duplex Channels (DECT 6.0) █...
  • Page 8: Technical Descriptions

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 4 Technical Descriptions 4.1. US-DECT Description The frequency range of 1.92 GHz-1.93 GHz is used. Transmitting and receiving carrier between base unit and handset is same frequency. Refer to Frequency Table (P.60). 4.1.1. TDD Frame Format 5 ms 5 ms Up Link ( Handset - >...
  • Page 9: Signal Flowchart In The Radio Parts

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 4.1.3. Signal Flowchart in the Radio Parts Reception Base unit: A voice signal from TEL line is encoded to digital data and converted into a 1.9GHz modulated radio signal by BBIC(IC501). The RF signal, after which is amplified in BBIC, is fed to selected antenna. Handset: As for a handset RF, RF signal is received in one antenna.
  • Page 10: Block Diagram (Base Unit_Main)

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 4.2. Block Diagram (Base Unit_Main) BT_1.8V CKM/STM...
  • Page 11: Tel Interface Circuit

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 4.3. Tel Interface Circuit R141...
  • Page 12: Block Diagram (Base Unit_Rf Part)

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 4.4. Block Diagram (Base Unit_RF Part)
  • Page 13: Circuit Operation (Base Unit)

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 4.5. Circuit Operation (Base Unit) General Description: (BBIC, Flash Memory, EERROM) is a digital speech/signal processing system that implements all the functions of speech compression, record and playback, and memory management required in a digital telephone answering machine. The BBIC system is fully controlled by a host processor. The host processor provides activation and control of all that functions as follows.
  • Page 14: Power Supply Circuit/Reset Circuit

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 4.5.6. Power Supply Circuit/Reset Circuit The power supply voltage from AC adaptor is converted to VBAT (3.0V) in IC302. And +3.0V for peripherals and analog part is insulated from VBAT by Doubler of BBIC. Circuit Operation: +5.5V +3.0V VDD3 VDD4 IC501 IC302...
  • Page 15 KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 4.5.6.1. Charge Circuit The voltage from the AC adaptor is supplied to the charge circuits. +5.5V F301 R373 CHARGE+ C351 CHARGE-...
  • Page 16: Telephone Line Interface

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 4.5.7. Telephone Line Interface Telephone Line Interface Circuit: Function • Bell signal detection • ON/OFF hook and pulse dial circuit • Side tone circuit Bell (RINGING) signal detection and OFF HOOK circuit: In the idle mode, Q141 is open to cut the DC loop current and decrease the ring load. When ring voltage appears at the Tip (T) and Ring (R) leads (When the telephone rings), the AC ring voltage is transferred as follows: L1T →...
  • Page 17: Parallel Connection Detect Circuit/Auto Disconnect Circuit

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 4.5.8. Parallel Connection Detect Circuit/Auto Disconnect Circuit Function: In order to disable call waiting and stutter tone functions when using telephones connected in parallel, it is necessary to have a circuit that judges whether a telephone connected in parallel is in use or not. This circuit determines whether the telephone connected in parallel is on hook or off hook by detecting changes in the T/R voltage.
  • Page 18: Calling Line Identification (Caller Id)/Call Waiting Caller

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 4.5.9. Calling Line Identification (Caller ID)/Call Waiting Caller ID Function: Caller ID The caller ID is a chargeable ID which the user of a telephone circuit obtains by entering a contract with the telephone company to utilize a caller ID service. For this reason, the operation of this circuit assumes that a caller ID service contract has been entered for the circuit being used.
  • Page 19 KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 Call Waiting Caller ID Calling Identity Delivery on Call Waiting (CIDCW) is a CLASS service that allows a customer, while off-hook on an existing call, to receive information about a calling party on a waited call. The transmission of the calling information takes place almost immediately after the customer is alerted to the new call so he/she can use this information to decide whether to take the new call.
  • Page 20: Block Diagram (Handset)

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 4.6. Block Diagram (Handset) FLASH ANT1 MEMORY EEPROM 10.368 MHz VBAT CHG_DET CHARGE RSTN RF part CONTROL CHARGE CHG_CTL POWER SUPPLY CONTROL BATTERY_ON VBAT BATTERY BBIC MICp MICn Receiver LSRp LSRn (KEY) KEY_LED SP-PHONE SP PAOUTp PAOUTn CKM/STM CKM// (LCD) KEYS KX-TGHA20 BLOCK DIAGRAM (Handset)
  • Page 21: Block Diagram (Handset_Rf Part)

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 4.7. Block Diagram (Handset_RF Part) KX-TGHA20 BLOCK DIAGRAM (Handset_RF Part)
  • Page 22: Circuit Operation (Handset)

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 4.8. Circuit Operation (Handset) 4.8.1. Outline Handset consists of the following ICs as shown in Block Diagram (Handset) (P.20). • DECT BBIC (Base Band IC): IC1 - All data signals (forming/analyzing ACK or CMD signal) - All interfaces (ex: Key, Detector Circuit, Charge, EEPROM, LCD) •...
  • Page 23: Charge Circuit

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 4.8.3. Charge Circuit Circuit Operation: When charging the handset on the Base Unit, the charge current is as follows; DCP(5.5V) → F301 → R371 → R372 → D362 → CHARGE+(Base) → CHARGE+(Handset) → R8 → Q3 → F1 → BATTERY+... Battery...
  • Page 24: Behavior Of Electric Power Failure

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 4.9. Behavior of Electric Power Failure In case that the power from AC adaptor is lost and lose radio waves, BBIC (IC1) turns Q11 ON since handset presumes that base unit's power is falied. Base unit detects that power voltage of AC adaptor +5.5V is OFF, then turns Q351 ON. It's possible to use the units during the power failure, supplying power to VBAT of base unit from battery of handset through Q10, CHG terminal and Q351.
  • Page 25: Location Of Controls And Components

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 5 Location of Controls and Components Refer to the Operating Instructions. Note: You can download and refer to the Operating Instructions (Instruction book) on TSN Server. 6 Installation Instructions Refer to the Operating Instructions. Note: You can download and refer to the Operating Instructions (Instruction book) on TSN Server. 7 Operating Instructions Refer to the Operating Instructions.
  • Page 26: Test Mode

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 8 Test Mode 8.1. Engineering Mode 8.1.1. Base Unit Important: Make sure the address on LCD is correct when entering new data. Otherwise, you m ay ruin the unit. Make sure the link between Base and Handset before that. Then in case using not original Handset, you need to deregister Handset.
  • Page 27 KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 Set Addr.: 7). Press , a long confirmation beep New Data will be heard. CLEAR {OFF} 8). Press to return to standby mode. Set Addr.: After that, turn the base unit power off and then power on. _ _ _ _ BACK Note:(*)“Set tel line"...
  • Page 28: Handset

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 8.1.2. Handset Important: Make sure the address on LCD is correct when entering new data. Otherwise, you may ruin the unit. {OFF} Dial keypad {FLASH} {CALL WAIT} H/S key operation H/S LCD 1). Press MENU 2). Select "Settings" using {>} then press SELECT...
  • Page 29 KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 Frequently Used Items (Handset) ex.) Items Address Default Data New Data Possible Adjusted Possible Adjusted Remarks Value MAX (hex) Value MIN (hex) Frequency 00 07 / 00 08 00 / 01 (*2) 00 02 ~ 00 06 Given value Note: (*1) When you enter the address or New Data, please refer to the table below.
  • Page 30: Service Mode

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 9 Service Mode 9.1. How to Clear User Setting (Handset Only) Handset Press simultaneously until a beep sound is heard. Then single handset is initialized. (The contents of user setting are reset to factory default) *Usage time is not cleared.
  • Page 31: Troubleshooting Guide

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 10 Troubleshooting Guide 10.1. Troubleshooting Flowchart FLOW CHART Not working Power ON Base Unit Check Power Not recording (*1) Record Check Record No playback Playback Pre-Message Check Playback Link No link Not charged Battery Charge Check Battery Charge Check Link Range Check the RF part No voice...
  • Page 32: Check Power

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 10.1.1. Check Power 10.1.1.1. Base Unit Is the AC Adaptor inserted into AC outlet? (*1) AC Adaptor. Is output voltage of AC adaptor 5.5 V? Check (*2) Check Power Supply Circuit. Check VDD1(1.8V) :Test point (VDD1) (*2) RSTN: Reset = "High"? Check Reset Circuit.
  • Page 33: Check Record

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 10.1.2. Check Record 10.1.2.1. Base Unit Not record Incoming Message Check Telephone Line Interface Check Bell signal. [Bell]. Check Telephone Line Interface Does the unit catch line? [OFF HOOK]. Check Line In: Pin 25 of BBIC. Check ICM Recording in Signal Route. Check Auto Disconnect Circuit.
  • Page 34 KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 <How to change the Auto Disconnect activation time and VOX level> A) Auto Disconnect activation time: Some Telephone Company lines (fiber or cable) ON Hook and OFF Hook voltages are lower than conventional lines, which may cause a malfunction of Auto Disconnect detection. To solve this problem, try changing the Auto Disconnect activation through the procedures below.
  • Page 35 KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 B) Vox level: It makes easier to detect a small voice (caller) by raising the sensitivity of VOX level. Therefore, the recording of TAM is not turned off during detection. 1) ~ 2) are same as (A). 3) Press "5","1","1". Service ready :5 1 1 CLEAR...
  • Page 36: Check Playback

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 10.1.3. Check Playback 10.1.3.1. Base Unit Check VDD1(1.8V) :Test point (VDD1)(*1) Check Power Supply Circuit. Check output of BBIC (Pin 41,43). Check BBIC and Flash Memory. Check Speaker and its surroundings. Cross Reference: Note: Power Supply Circuit/Reset Circuit (P.14) Flash Memory is IC601.
  • Page 37: Check Link

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 10.1.5. Check Link 10.1.5.1. Base Unit Does Base Unit connect to the properly working Base Unit is OK. Check Handset. Handset? Is the voltage of VDD3 about 3.0V? Check around Power Supply Circuit. Is the voltage of VDD1 about 1.8V? Does the RF clock (CLK) oscillate at 10.368 MHz in Check around X501 and RF module and adjust clock frequency.(*1)
  • Page 38 KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 10.1.5.2. Handset Does Handset link with Base Unit? Handset is OK. Check Base Unit. (Properly working unit) Is the voltage of TP VBAT about 2.2~2.8 V? Check the batteries. Check around Power Supply Circuit/Reset Circuit. Is the voltage of +1.8V about 1.8V? Does the RF clock (CLK) oscillate: 10.368 MHz Check around X1 and RF module and adjust in Handset Test Mode?
  • Page 39: Check The Rf Part

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 10.1.6. Check the RF part 10.1.6.1. Finding out the Defective part 1. Prepare Regular HS(*1) and Regular BU(*2). 2. a. Re-register regular HS (Normal mode) to base unit (to be checked). If this operation fails in some ways, the base unit is defective. b.
  • Page 40 KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 10.1.6.2. RF Check Flowchart Each item (1 ~ 5) of RF Check Flowchart corresponds to Check Table for RF part (P.41). Please refer to the each item. Start Link Control Check BBIC interface parts. confirmation signal (RF Block <->BBIC on BU/HS P.C.B) Normal confirmation X'tal...
  • Page 41 KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 10.1.6.3. Check Table for RF part Item BU (Base Unit) Check HS (Handset) Check Link Confirmation Normal 1. Register Regular HS to BU (to be 1. Register HS (to be checked) to Regular checked). HS, BU Mode [Normal Mode] 2.
  • Page 42 KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 10.1.6.4. TEST RANGE Check Circuit block which range is defective can be found by the following check. Item BU (Base Unit) Check HS (Handset) Check Range Confirmation TX TEST 1. Register Regular HS to BU (to be checked). 1. Register HS (to be checked) to Regular BU. (TX Power check) 2.
  • Page 43: Registering A Handset To The Base Unit

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 10.1.7. Registering a Handset to the Base Unit The supplied handset and base unit are pre-registered. If for some reason the handset is not registered to the base unit, re-register the handset. 1 Handset: {MENU} i # 1 3 0 2 Base unit: Press and hold {LOCATOR} for about 5 seconds until the registration tone sounds.
  • Page 44: Check Handset Transmission

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 10.1.9. Check Handset Transmission Check MIC of handset. Check handset Tx in Signal Route. 10.1.10. Check Handset Reception Check speaker of handset. Check handset Rx in Signal Route. Note: When checking the RF part, Refer to Check the RF part (P.39).
  • Page 45: Check Bt Communication

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 10.1.12. Check BT Communication Plug in the AC power source and wait 10 seconds. Use a handset to enter the "Bluetooth" menu: Press [MENU] Bluetooth [SELECT] Is it possible to enter the "Bluetooth" menu? Check the circuit of around RF parts of BT Is it possible to register BT_Headset? Module Check Voice Transmission of the BT_Headset...
  • Page 46 KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 Case1: OK AC power on PIO01 0.05s 1.95s 1.5s Case2: NG1(fail to reset BT_IC) AC power on If BT_IC does not work, 1st and 2nd signals does not appear. Check the circuit of around PIO01 POWER and RESET parts of BT Module.
  • Page 47: Disassembly And Assembly Instructions

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 11 Disassembly and Assembly Instructions 11.1. Disassembly Instructions 11.1.1. Base Unit Remove the 2 screws to remove the cabinet cover. Remove the solders. Cabinet cover Solders Remove the screw to remove the Jack Holder. Jack holder...
  • Page 48 KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 Remove the pararell wire to remove the main P.C. board. Remove the screw to remove the operational P.C.B board.
  • Page 49: Handset

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 11.1.2. Handset 4 screws Remove the 4 screws. Insert a plastic card. Cabinet body (Ex. Used SIM card etc.) between the cabinet body and the cabinet cover, then pull it along the gap to open the cabinet. Likewise, open the other side of the cabinet.
  • Page 50: Charger Unit

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 11.1.3. Charger Unit 2 charge terminals...
  • Page 51: How To Replace The Handset Lcd

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 11.2. How to Replace the Handset LCD Note: The illustrations are simplified in this page. They may differ from the actual product. Peel off DOUBLE SIDE TAPE at the back side LCD 2 points as a figure shown. FRONT SIDE OF LCD BACK SIDE OF LCD DOUBLE SIDE TAPE Bend FFC and fix to the positioning points (2 points)
  • Page 52: Measurements And Adjustments

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 12 Measurements and Adjustments This chapter explains the measuring equipment, the JIG connection, and the PC setting method necessary for the measurement in Troubleshooting Guide (P.31) 12.1. Equipment Required • Digital multi-meter (DMM): it must be able to measure voltage and current. •...
  • Page 53: Connections (Handset)

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 12.2.2. Connections (Handset) Connect the DC Power or Battery to BATT+ and BATT-. Connect the JIG cable GND (black) to GND. Connect the JIG cable UTX (yellow) to UTX and URX (red) to URX. URX (red) To Serial Port UTX (yellow) (com port 1*) GND (black)
  • Page 54: How To Install Batch File Into P.c

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 12.2.3. How to install Batch file into P.C. Insert the Batch file CD-ROM into CD-ROM drive and copy PNZZTG**** folder to your PC (example: D drive). <Example for Windows> On your computer, click [Start], select Programs Open an MS-DOS mode window. (All Programs for Windows XP/Windows Server 2003), then click MS-DOS Prompt.
  • Page 55: Commands

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 12.2.4. Commands See the table below for frequently used commands. Command name Function Example rdeeprom Read the data of EEPROM Type “rdeeprom 00 00 FF”, and the data from address “00 00” to “FF” is read out. readid Read ID (RFPI) Type “readid”, and the registered ID is read out.
  • Page 56: Adjustment Standard (Base Unit)

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 12.3. Adjustment Standard (Base Unit) When connecting the simulator equipment for checking, please refer to below. 12.3.1. Bottom View ANT1-Short ANT1-S-GND Q144 R148 R147 R170 C104 C106 R143 R119 C166 R116 R120 R146 R102 R104 R160 C105 R103 C164 R101 C103 C161 C162...
  • Page 57: Adjustment Standard (Handset)

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 12.4. Adjustment Standard (Handset) When connecting the simulator equipment for checking, please refer to below. 12.4.1. Component View ORANGE PNLB2283Z RECEIVER GREEN BLUE SP-PHONE_SPEAKER ORANGE CP3V C801 JTAG C860 C859 C861 C862 C191 C190 C866 1.8V POWER CP4V CHG+ MIC+ MIC+ RCV-...
  • Page 58: Things To Do After Replacing Ic Or X'tal

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 12.5. Things to Do after Replacing IC or X'tal If repairing or replacing EEPROM and X'tal, it is necessary to download the required data such as Programming data or adjustment data, etc. in memory. The set doesn't operate if it is not executed. 12.5.1.
  • Page 59 KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 12.5.1.2. Handset First, operate the PC setting according to The Setting Method of JIG (P.52). Then download the appropriate data according to the following procedures. Items How to download/Required adjustment BBIC(IC1) Programming data is stored in memory. 1) System Clock adjustment. EEPROM (IC3) Adjusted parameter data is stored in memory.
  • Page 60: Frequency Table

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 12.6. Frequency Table Ch. (hex) TX/RX Frequency (MHz) Channel 0 1928.448 Channel 1 1926.720 Channel 2 1924.992 Channel 3 1923.264 Channel 4 1921.536...
  • Page 61: Bluetooth Frequency Table

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 12.7. Bluetooth Frequency Table Frequency (MHz) Frequency (MHz) Frequency (MHz) 2402 2435 2468 2403 2436 2469 2404 2437 2470 2405 2438 2471 2406 2439 2472 2407 2440 2473 2408 2441 2474 2409 2442 2475 2410 2443 2476 2411 2444 2477 2412 2445...
  • Page 62: Miscellaneous

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 13 Miscellaneous 13.1. How to Replace the LLP (Leadless Leadframe Package) IC 13.1.1. Preparation • PbF (: Pb free) Solder • Soldering Iron Tip Temperature of 700 °F ± 20 °F (370 °C ± 10 °C) Note: We recommend a 30 to 40 Watt soldering iron. An expert may be able to use a 60 to 80 Watt iron where someone with less experience could overheat and damage the PCB foil.
  • Page 63: How To Install The Ic

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 13.1.4. How to Install the IC 1. Place the solder a little on the land where the radiation GND pad on IC bottom is to be attached. Soldering Iron Land Solder P.C.Board 2. Place the solder a little on the land where IC pins are to be attached, then place the IC. Note: •...
  • Page 64: How To Replace The Flat Package Ic

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 13.2. How to Replace the Flat Package IC Even if you do not have the special tools (for example, a spot heater) to remove the Flat IC, with some solder (large amount), a soldering iron and a cutter knife, you can easily remove the ICs that have more than 100 pins. 13.2.1.
  • Page 65: How To Install The Ic

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 13.2.3. How to Install the IC 1. Temporarily fix the FLAT PACKAGE IC, soldering the two marked pins. *Check the accuracy of the IC setting with the corresponding soldering foil. 2. Apply flux to all pins of the FLAT PACKAGE IC. 3.
  • Page 66: Terminal Guide Of The Ics, Transistors And Diodes

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 13.3. Terminal Guide of the ICs, Transistors and Diodes 13.3.1. Base Unit (Reverse View) PNWI1TGH260H PNWI2TGH260H C0DBEYY00102 C1CB00003663 PNWI3TGH260H 2SA1776P DSC7003S0L Cathode Anode Cathode Anode B1ABDM000001, B1ADGE000012 B1ADNB000003, 2SC6054JSL DY2J25000L B0ECKM000008 2SA1576S, B1GBCFYY0020 B0EDER000009 Cathode Cathode Anode Anode B0DDCD000001 B3AAB0000347 13.3.2.
  • Page 67: Schematic Diagram

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 14 Schematic Diagram 14.1. For Schematic Diagram 14.1.1. Base Unit (Schematic Diagram (Base Unit_Main)) Notes: 1. DC voltage measurements are taken with voltmeter from the negative voltage line. Important Safety Notice: Components identified by mark have special characteristics important for safety.
  • Page 68: Schematic Diagram (Base Unit_Main)

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 14.2. Schematic Diagram (Base Unit_Main) 14.2.1. KX-TGH260 ANT1_TP RX-balun W=0.175mm L=3.6mm 50 ohm line C851 S=0.125mm ANT1-Short L=4mm RF_RXn *open-stub $N>l9g SLx2 W=0.25mm open-stub W1=0.2mm L=2mm ANT1-S-GND L1=3.3mm RF_Rx W1=0.2mm W2=0.7mm L1=3.0mm L2=5.0mm W2=0.7mm L2=4.3mm 50 ohm line RF_RXp total L=4mm SHORT W=0.25mm...
  • Page 69 KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 Q141 R160 Q161 R141 100k C101 680p (BRAWN) R164 D101 2.7k R151 Q144 Q142 100k C102 680p (YELLOW) P101 C184 +1.8V REFERENCE DC Monitor R115 8.2M 1XX : TEL LINE R116 8.2M 3XX : POWER, CHARGE 4XX : MIC, SP VDD1: 1.8V 5XX : BBIC 6XX : FLASH, EEPROM, KEY, LCD...
  • Page 70: Schematic Diagram (Bt Module)

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 14.3. Schematic Diagram (BT module) R8 NC RESETB CL1_GND CL2_PCM_SYNC PCM_SYNC CL3_PCM_DOUT PCM_OUT CL4_GND CL5_MD0 P10/AN00 VSS5 P11/AN01/SIN1_1 CL6_RX P3F/RTO05_0/TIOA5_1 P12/SOT1_1 VSS11 VSS4 CL7_GND VSS12 CL8_X0 VSS3 CL9_TX AVCC VSS2 AVRH VSS1 AVSS CL10_TDO CL11_RESETC RESETC VSS13 (10) VSS14 CL12_TMS VSS15 P23/SCK0_0...
  • Page 71 KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 CL18_GND CL19_RF CL20_GND CL21_GND CL22_GND CL23_GND CL24_PIO1 PCM_OUT/SPI_MISO PCM_OUT VSS_RADIO CL25_PIO2 PCM_IN PCM_IN/SPI_MOSI VSS_AUX PCM_SYNC PCM_SYNC/*SPI_CS VSS_DIG PCM_CLK PCM_CLK/SPI_CLK VDD_PADS CL26_GND SPI_*PCM_SEL VDD_AUX PIO0 VDD_RADIO PIO1 VDD_DIG CL27_VDD (10) CL28_GND (11) (12) CL29_SIO0/P21 CL30_SOT0/P22 CL31_PCM_IN RESETC PCM_IN CL32_PCM_CLK PCM_CLK (13) (14) Shiled...
  • Page 72: Schematic Diagram (Base Unit_Operation)

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 14.4. Schematic Diagram (Base Unit_Operation) 14.4.1. KX-TGH260 SW904 SW901 SW908 LED902 ANS_LED KEYS_E ERASE KEYS_E KEYS_C KEYS_C KEYIN1 KEYIN1 KEYIN2 KEYIN2 SW906 SW907 SW905 KEYIN3 KEYIN3 KEYS_D PLAY/STOP SKIP KEYS_D SW902 SW903 MSG_LED LED901 MSG_LED LED_VDD LED_VDD DOWN LOCATOR *LED904 GREEN CELL1_LED...
  • Page 73 KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 Memo...
  • Page 74: Schematic Diagram (Handset_Main)

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 14.5. Schematic Diagram (Handset_Main) VBAT To Battery Charge Current BATT+ K0.1u 1.1A 6.3V SOCp 220u BATT- J56p SOCn GND GND SHORT *Q10 *R10 DdEE2sO) *Q11 *R13 *Q12 *R12 When on Charge 220k *R11 K1000p CHG+ CHG+ CP3V (3216) K0.1u To Charge Terminal K0.1u...
  • Page 75 KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 *open-stub $N>l9g SLx2 RF BLOCK W1=0.2mm L1=3.3mm RX-balun W2=0.7mm L2=5.0mm W=0.170mm 50 ohm line W=0.25mm <u?.46EY:GE,2=$N$?$a L=3.6mm L=2mm L=2mm %A%C%W$KCV$-49$( S=0.125mm RF_RXn open-stub ANT1_TP W1=0.2mm C862 L1=3.0mm C801 B1.5p W2=0.7mm D10p L2=4.3mm W=0.25mm L=2mm 50 ohm line RF_RXp SHORT Total L=4mm W=0.3mm W=0.3mm...
  • Page 76 KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 Memo...
  • Page 77: Printed Circuit Board

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 15 Printed Circuit Board 15.1. Circuit Board (Base Unit_Main) 15.1.1. Component View R141 Q141 P101 R142 Q142 D141 C142 C102 D143 R169 R144 SA101 C141 R162 D142 SA102 C143 D101 C181 R145 C184 R164 R168 R165 R167 R891 C173 C101 C167 R166...
  • Page 78: Bottom View

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 15.1.2. Bottom View ANT1-Short ANT1-S-GND Q144 R148 R147 R170 C106 C104 R143 R119 C166 R116 R120 R146 R102 R104 R160 C105 R103 C164 R101 C103 C161 C162 R115 CHARGE- C115 C351 R117 P N L B 2 2 8 1 Z C116 K X - T G H 2 6 0 R118...
  • Page 79: Circuit Board (Base Unit_Operation)

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 15.2. Circuit Board (Base Unit_Operation) 15.2.1. KX-TGH260 K X - T G H 2 x x S W 9 0 1 S W 9 0 2 A N S _ L E D S W 9 0 3 K E Y S _ E K E Y S _ C K E Y I N 1 K E Y I N 2...
  • Page 80 KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 Memo...
  • Page 81: Circuit Board (Handset_Main)

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 15.3. Circuit Board (Handset_Main) 15.3.1. Component View ORANGE PNLB2283Z RECEIVER BLUE GREEN SP-PHONE_SPEAKER ORANGE CP3.0V CP3V C801 JTAG C860 C859 C861 C862 C191 C190 C866 CKM (10.368MHz) 1.8V 1.8V POWER CP4V CHG (+) CHG+ MIC+ MIC+ RCV- MIC- RCV+ MIC- R11 R12 for signal communication jig...
  • Page 82: Bottom View

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 15.3.2. Bottom View SOFT_A SOFT_C RIGHT LEFT TALK DOWN LED3 LED5 LED2 LED1 LED4 LED6 ECO/R LED12 KX-TGHA20 CIRCUIT BOARD (Handset_Main (Bottom View))
  • Page 83: Exploded View And Replacement Parts List

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 16 Exploded View and Replacement Parts List 16.1. Cabinet and Electrical Parts (Base Unit) Ref.No. Figure 2.6 x 8mm...
  • Page 84: Cabinet And Electrical Parts (Handset)

    (*1) This cable is fixed by heat-sealing. Refer to How to Replace the Handset LCD (P.51). (*2) The rechargeable Ni-MH battery HHR-4DPA is available through sales route of Panasonic. (*3) Attach the SPACER (No. 122) to the exact location described above.
  • Page 85: Cabinet And Electrical Parts (Charger Unit)

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 16.3. Cabinet and Electrical Parts (Charger Unit) 200-1 200-5 200-2 200-3 200-4...
  • Page 86: Accessories And Packing Materials

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 16.4. Accessories and Packing Materials 16.4.1. KX-TGH260B A3, A4, A5, A6...
  • Page 87: Kx-Tgh262B

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 16.4.2. KX-TGH262B A101 A102 (*1) (*1) P102 A103, A104, A105, A106 P101 Note: (*1) These pads are pieces of Ref No. P102 (PAD)
  • Page 88: Kx-Tgh263B

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 16.4.3. KX-TGH263B P203 (*1) (*2) A202 (*1) A201 P202 (*1) (*1) A203, A204, A205, A206 P201 Note: (*1) These pads are pieces of Ref No. P202 (PAD) (*2) These pads are pieces of Ref No. P203 (PAD)
  • Page 89: Kx-Tgh264B

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 16.4.4. KX-TGH264B (*1) A301 A302 (*1) P302 A303, A304, A305, A306 P301 Note: (*1)These pads are pieces of Ref No. P302 (PAD)
  • Page 90: Kx-Tgha20B

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 16.4.5. KX-TGHA20B P503 P502 (*1) A501 P501 Note: (*1) These pads are pieces of Ref No. P502 (PAD)
  • Page 91: Replacement Parts List

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 16.5. Replacement Parts List Safety Ref. Part No. Part Name & Description Remarks 1. RTL (Retention Time Limited) PNHA1032Z RUBBER PARTS, FOOT CUSHION Note: PNGT7983Z NAME PLATE, AL The “RTL” marking indicates that its Retention Time is PNYM1061Z1 CABINET COVER ASS’Y Limited.
  • Page 92: Handset

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 Safety Ref. Part No. Part Name & Description Remarks Safety Ref. Part No. Part Name & Description Remarks R160 ERJ3GEYJ821 C513 ECUE1A104KBQ 0.1 R162 ERJ3GEYJ473 C514 ECUE1H100DCQ 10p R163 D0GG390JA007 39 C515 ECUE1A104KBQ 0.1 R164 ERJ3GEYJ272 2.7k C516 ECUE1A104KBQ 0.1 R165 ERJ3GEYJ273 C518...
  • Page 93: Charger Unit

    KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20 Safety Ref. Part No. Part Name & Description Remarks Safety Ref. Part No. Part Name & Description Remarks PNQT2861Z LABEL , ATTENTION ERJ2GEJ1R0 PNKF1316Z1 CABINET COVER ABS-HB ERJ2GEJ1R0 PNJC1026Z BATTERY TERMINAL (CR) (CAPACITORS) PNJC1025Z BATTERY TERMINAL (CL) EEE0JA221WP PNHS1079Z SPACER, BATTERY ECUV1C104KBV 0.1 PNKK1095Z1...
  • Page 94: Accessories And Packing Materials

    Method of JIG (P.52) APPEAL PNPK3764001Z GIFT BOX PNPD1821Z CUSHION Safety Ref. Part No. Part Name & Description Remarks 16.5.4.2. KX-TGH262B PQZZ1CD300E JIG CABLE (*1) PNZZTGH260M BATCH FILE CD-ROM (*1) Safety Ref. Part No. Part Name & Description Remarks A101...
  • Page 95 Digital Cordless Answering System Link-to-Cell Bluetooth Convergence Solution B:Black Version Please use this manual with the original service manual mentioned on the next page. © Panasonic System Networks Co., Ltd. 2014 Unauthorized copying and distribution is a violation of law.
  • Page 96 1 ORIGINAL SERVICE MANUAL INFORMATION Suffix Code Model No. on S/M Destinations Order No. of S/M Base Unit Handset KX-TGH260B/KX-TGH262B/KX-TGH263B/KX-TGH264B/KX- U.S.A. KM41402790CE A to B TGHA20B 2 REPLACEMENT PARTS LIST 2.1. REFERENCE CHART Reason for Change *The following items (1-8) indicate the reason for change. See the “Notes” column for each part in ORIGINAL AND NEW PARTS COMPARISON LISTS.

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