Maxon CIC Europe PM200 Service Manual
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Maxon CIC Europe PM200 Service Manual

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Service Manual
PM200/250
SM-PM200/250-01
PM200/250
Service Manual

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Summary of Contents for Maxon CIC Europe PM200

  • Page 1 Service Manual PM200/250 SM-PM200/250-01 PM200/250 Service Manual...

  • Page 2: Amendments

    Service Manual PM200 AMENDMENT RECORD SHEET All amendments to this manual should be incorporated as soon as they are received and recorded below: Issue No. Effective Date Reason for Change Date Signature All Engineering Bulletins relevant to this product should be placed at the rear of this binder.

  • Page 3: Warnings

    Service Manual PM200 WARNINGS 1. WARNING! NEVER connect the transceiver to an AC outlet. This may pose a fire hazard or result in an electric shock. 2. NEVER operate the radio transmitter without a suitable artificial load or antenna connected.

  • Page 4: Table Of Contents

    Service Manual PM200 Contents Amendments ............2 Warnings ............. 3 Introduction............6 Using this Manual ..................6 Amendments to this Manual ................6 Specification ............8 General ......................8 Transmitter ....................10 Receiver......................12 Maintenance and repair........14 Introduction....................14 Test Equipment Connection ................16 Microphone and PTT Connections .............16 Transmitter Performance Tests..............17...
  • Page 5 Contact Details ..........54 Note: Although this manual is a generic manual for PM200 and PM250 there are a number of differences between PM200 and PM250. A separate appendix has been written which includes the drawings and part list for the PM250.

  • Page 6: Introduction

    Service Manual PM200 Introduction This Maxon Service Manual is a comprehensive guide for the maintenance and field repair of this equipment. It covers all versions of the PM-200/250 radio. Before using this manual please read the whole of this introductory chapter, this will help you to make the best use of it.
  • Page 7 Maxon or its subcontractors, a risk to operator safety or an infringement of Type Approval is probable. All units affected should be returned for modification to Maxon CIC Europe Works Department on receipt of such a Bulletin. ‘B’...

  • Page 8: Specification

    (UHF) 440.000 – 480.000MHz (VHF) 146.000 – 174.000MHz Channel Spacing 12.5 kHz, / 25 kHz (12.5 / 25 kHz switchable by CPU control) RF Output Power PM200 2W - 25W nominal (+/-20%) RF Output Power PM250 5W - 45W nominal (+/-20%) Modulation Type...
  • Page 9 -20 to +55°C (extreme), Humidity EIA/TIA 603 (95%) 20kV (C-MIC = 15kV) EMC Directive 89/336/EEC May 89 ETS 301 489-1/-5 Physical Dimensions 161.8(W) mm x 168.8(D) mm x 44(H) mm Weight 1.46kgs Programmer PM200 PC Programmer Page 9 of 54...

  • Page 10: Transmitter

    Service Manual PM200 Transmitter Test Method is ETS 300.086 2001 unless stated. Performance without Sub-Audio Modulation. PM200 Power Output High Power 25W nominal adjusted Low Power 2W nominal adjusted PM250 Power Output High Power 45W nominal adjusted Low Power 5W nominal adjusted Audio Freq.
  • Page 11 Service Manual PM200 Transmitter Audio Distortion (Without CTCSS) 1 kHz < 5% (nominal) Transmitter Audio Distortion (With CTCSS) 1 kHz < 8% (nominal) Audio frequency = 1 kHz, with any CTCSS freq. combined. Hum and Noise (Residual Modulation) Method as FTZ 17 TR 2049 July 1988...

  • Page 12: Receiver

    Service Manual PM200 Receiver Test Method is ETS 300.086 2001 unless stated. Performance without Sub-Audio Modulation Sensitivity 12dB SINAD (nominal) UHF: Better than –117dBm Amplitude Characteristic Within +/- 3dB Co-channel Rejection 12.5 kHz From 0dB to –12dB 25 kHz From 0dB to –8dB...
  • Page 13 Service Manual PM200 AF Power 4W max. (Internal 16 Ω speaker) AF Distortion – Method as FTZ 17 TR 2049 1 kHz < 5% (nominal) RX Hum and Noise Method as TIA / EIA-603 12.5 kHz <40dB No PSOPH 25 kHz <40dB No PSOPH...

  • Page 14: Maintenance And Repair

    Combined Equipment RF Signal Generator Communications Test Set (e.g. HP 8920B, Stabilock 4040 or similar). RF Power Meter Accessories RF Frequency Counter PM200 Microphone. Spectrum Analyser and notch filter (optional) ACC - 2006 Audio Signal Generator Audio Power Meter SINAD Meter...
  • Page 15 Service Manual PM200 Test Equipment Configuration (Fig. 1) Prerequisites For the following tests, signal generator modulation level should be set to Average System Deviation, i.e. 60% of maximum system deviation. The level should therefore be set to: 1.5 kHz for 12.5 kHz channel spacing 3.0 kHz for 25 kHz channel spacing...

  • Page 16: Test Equipment Connection

    Service Manual PM200 EEPROM programming Ensure that the EEPROM has the required customer parameters programmed, otherwise ensure that a test EEPROM is programmed with at least the lowest, middle and highest RX/TX frequencies prior to aligning the UHF scanning mobile radio.

  • Page 17: Transmitter Performance Tests

    Power Output a) Connect the transmitter to the Communications Test Set (CTS) with the power meter set to read 25W for the PM200. b) Set the power supply to 13.8Vdc and connect a dc voltmeter across the power supply to monitor the supply voltage.

  • Page 18: Receiver Performance Tests

    Service Manual PM200 f) Release PTT. When CTCSS and DCS performance checks are also required, ensure that the lowest, middle and highest RX/TX frequencies include: (see below for suggested test channel set-up). Lowest RX/TX freq. ch. 67.0 Hz CTCSS Middle RX/TX freq. ch DCS Code 072 Highest RX/TX freq.
  • Page 19 Service Manual PM200 RF level is < -117dBm (0.31μVpd). Squelch a) Ensure that both the radio and the signal generator are set to the appropriate channel spacing. b) With the above setting, reduce the RF level to –130dBm (speaker should be muted).

  • Page 20: Alignment

    Service Manual PM200 Alignment WARNINGS Any repairs or adjustments should only be made by, or under the supervision of a qualified radio-telephone service technician. CAUTION This radio contains static sensitive devices. Static safe precautions should be observed; in particular we would recommend the use of a suitable floor mat, table mat, bonding cords and a wrist strap.

  • Page 21: Disassembly And Re-Assembly Of The Radio

    Service Manual PM200 Disassembly and Re-assembly of the Radio In order to carry out the following Test and Alignment procedures it will be necessary to gain access to the inside of the radio. Care should be exercised when opening up the radio for maintenance or repair.

  • Page 22: Transmitter Tcxo Alignment

    Service Manual PM200 a) Select Channel 1. b) Set the PTT switch to on. Check that the VCO tuning voltage at TP1 is >1.5V. c) Set the PTT switch to off. Select Channel 3. d) Set the PTT switch to on and check that the voltage at TP1 is <10V.

  • Page 23: Receiver Performance Tests

    Service Manual PM200 a) Select Channel 2 on the radio. b) Set the RF generator to the receiver frequency and the RF level to 1mV Pd (-47dBm). c) Set the AF signal to 1 kHz. d) Set the deviation to: 12.5 kHz channel spacing...
  • Page 24 Service Manual PM200 The SINAD performance test may be used to test the sensitivity of the receiver. a) Connect the RF signal generator, modulated with a 1 kHz tone, to the radio. b) Set the frequency to correspond to the Rx frequency of the radio.

  • Page 25: Detailed Functional Description

    Service Manual PM200 Detailed functional description UHF Transmit The transmitter is comprised of: Microphone audio Frequency synthesiser Power amplifier and harmonic filter Automatic power control Microphone Audio Circuit Microphone audio is fed through the front panel PCB onto the main PCB, where it is amplified, limited the inside parts of the CMX881 and pre-emphasised before being applied to the VCO and TCXO (via pin 2 on TCXO module).
  • Page 26 Service Manual PM200 Charge Pump and Loop Filter Transistors Q903 to Q904 and associated resistors and capacitors form the charge pump and loop filter. The phase detector output from U1 pins 7 and 8 are combined by the charge pump to produce a 0 – 15 tuning volt signal. The signal is filtered by the loop filter to remove any residual reference frequency harmonics from the signal.

  • Page 27: Uhf Receive

    Service Manual PM200 UHF Receive The receiver is comprised of: Front End Filter / RF amplifier First mixer and first IF amplifier Second mixer, second IF amplifier and FM detector Receiver audio circuit(CMX881) Mute (Squelch) circuit RF amplifier The receiver Front End module contains two stages of filtering and an amplifier, Q601.

  • Page 28: Control Details

    Service Manual PM200 pin 16 of U2 and applied to the mixer. The output of the second mixer, a frequency of 455kHz, is the difference between the IF signal and the second local oscillator. The 455kHz passes via pin 5 and is applied to a 455kHz bandpass filter, FL2, (20/25kHz channel spacing) or FL3 (12.5kHz channel spacing).

  • Page 29: Troubleshooting

    Service Manual PM200 Troubleshooting Obvious checks, such as battery performance on load, should be made before pulling the radio apart. The use of a power supply isolates this cause. The alignment procedures, given in Section 5, list how standard tests such as SINAD measurements can be made.

  • Page 30: Asic

    Key Assign: Programmable Key P3 (long Press) assigned to the ASIC Control using the PC Programmer. When the PM200 has finished programming remove lead, switch off and on again. Long press of the P3 key will access the ASIC mode.
  • Page 31 Service Manual PM200 TRANSMITTER Control Mod1 Control Press P1 Key for tuning Mod1. This is used for TX audio tone gain by attenuator. Default value is 1. (N/S band) Mod2 Control Press P2 Key for tuning Mod2. This is the same as tuning TX audio deviation gain by attenuator.
  • Page 32 Service Manual PM200 It is possible to tune PEAK FM Tone Deviation by pressing Emergency key at the channel set DCS. The higher the numeric value the more the deviation will increase. Default value is 58045 (S band) or 57645 (N band).
  • Page 33 Service Manual PM200 it will be necessary to repeat parameter n to o, Activate PTT and confirm less than 2.5 KHz deviation If the modulation is >0.5 KHz It will be necessary to adjust DCS ASIC control lower than 57645 If the modulation is <1 KHz of 0.5 and more than 5 KHz deviation.
  • Page 34 Service Manual PM200 N Band setting default value (Fig.9) Down Without tone CH 1600 Save CTCSS CH 57800 1600 Save DCS CH 57645 1600 Save Asic control sequence (Fig.10) tone(CTCSS) Tone(DCS) Gain Limiter 57645 57545 1200 3100 57745 57645 1400...

  • Page 35: Apc (Automatic Power Control)

    Installation of APC software The APC (Automatic Gain Control) is used to adjust the RF power output via a PC. Click on the setup.exe file and follow on screen instructions APC Set-up PM200/250 programming lead PM200 (Fig.11) APC Test Program (Fig.12)
  • Page 36 Service Manual PM200 1.) Open APC programmer 2.) Select the Port and the Baud Rate (Baud Rate default 19200bps) Press save button, to save port and baud rate Settings. 3.) Connect programming lead to PC and radio, switch radio on.

  • Page 37: Schematics And Pcb Layout Index

    Service Manual PM200 Schematics and PCB layout Index This section contains PCB layouts pertaining to the PM200 Radio. Associated Main Schematics may be found in the wallet at the rear of this binder. Order of Drawing description Size of drawing...

  • Page 38: Parts List

    Service Manual PM200 Parts List The following pages detail the mechanical and electronic parts for the Maxon PM200 Mobile Radio. Refer to Exploded diagram for the PM200. Mechanical Exploded View Page 38 of 54...
  • Page 39 Service Manual PM200 Page 39 of 54...

  • Page 40: Parts List

    Service Manual PM200 Parts List PART NO. NAME & DESCRIPTION Q’ty REFERENCE- CHASSIS ASS'Y M2X5 (+)PH ZN 612289 2X5 BLK (+)MACHIN 613323 3X8 NI-PLAT 613580 3X6 NI-PLAT 613670 M3X22 (+)BH NI 71A356 ALDC 12 UPPER COV 71A367 ALDC 12 BOTTOM CO 752972 PBS 0.3T ANT TERMI...
  • Page 41 Service Manual PM200 504671 2P 85MM 2P HOUSIN SPK wire 4360685 SKHWALA010TACK SWIT 4360696 1194 YELLOW S1.2.3.4.5 05B0005Z 1/16W 5% T 16 R5.7.44 05B1046Z 100K 1/16W 5% T 16 R8.17.38.43 05B4739Z 47K 1/16W 5% T 16 R10.11.12.13.14 06E1511 150 1/ 4W 5% T 32 R23.24.25...
  • Page 42 Service Manual PM200 895-627 SPEAKER HOLDER 416180A FRONT PANEL PCB FRONT-END ASS'Y 05B0005Z 1/16W 5% T 16 R(C607) 05B2230Z 22K 1/16W 5% T 16 R601 05B4706Z 1/16W 5% T 16 R602 1310928Y 10PF GRM39 COG1 C603.613.618 1311057Y 11PF GRM39 COG1...
  • Page 43 Service Manual PM200 1804762 0.047UF C802 2003225 PD55035S RF POWER 2216786 TDA1519C I.C AUDIO 2220130A KIA7808PI I.C REGUL 2431765 XB15A407A2GB D1.2 2450087X 1N5404 DIODE REC 2622280Z 3.579545MHZ 2634180 44.645M -30 15PM 3 2703169Y LTWM455HT(2.832.689 2703510Z LTM455FW(2.832.685) 2712255 45N15B4 45.1MHZ FL4.5...
  • Page 44 Service Manual PM200 39.40.101,03.22,5,67 32) R7.9.12.15.55. 76.85.91.107.114,18, 33,46,72,87,97.203.209 249,254,256,284.304, 5,6.505.C112 05B1002Z 1/16W 5% T 16 R506.714 05B1013Z 100 1/16W 5% T 16 R5.14.23.62.103.217. 426.901. 910 05B1024Z 1/16W 5% T 16 R8.63.100.101.123.171 191.192.216.308.902 05B1035Z 10K 1/16W 5% T 16 R4.18.20.21.26.30.31 53.82.83.86.95.97.1 35.158.225.243.255.
  • Page 45 Service Manual PM200 05B1848Z 180K 1/16W 5% T 16 05B2032Z 20K 1/16W 5% T 16 R98.275.278.281 05B2207Z 1/16W 5% T 16 R1.17 05B2218Z 220 1/16W 5% T 16 R45.70.200.207.221. 223.231.244 05B2229Z 2.2K 1/16W 5% T 16 R69.122.179.239.907 05B2230Z 22K 1/16W 5% T 16 R19.22.25.27.137...
  • Page 46 Service Manual PM200 257.258.259.291 05B4739Z 47K 1/16W 5% T 16 R28.52.68.99.138.144 173.182. 184.222.224 234.245.251.269. + 301.309 05B4740Z 470K 1/16W 5% T 16 R94.120.185 05B5109Z 51 1/16W 5% T 1608 R66.905.906 05B5604Z 1/16W 5% T 16 R13.59 05B5615Z 560 1/16W 5% T 16 R141.242...
  • Page 47 Service Manual PM200 226.229.243.245.267. 275.276. 286.309.310 313.314.316.195. 317.321.904.905.908. 909.910. 911 130A747Y 0.1UF GRM39 Y5V1 C2.6.35.37.38.40.41. 42.43.44. 45.47.65.69 70.72.75.88.90.91,108 172.191.205, 214.257. 271.274.278, 279.323. 331.423. 424.902 130A758Y 0.001UF GRM39 X7R1 C32.33.101.102.127. 138.171.174.189.190. 287.288.291.292.307.+ 308.329.330 130B307 UMK107CG 102JZ 5% 0 C32.54.506 1301755 0.01UF GRM40 X7R1 C277.311.312...
  • Page 48 Service Manual PM200 1311057Y 11PF GRM39 COG1 C14.301 1311354Y GRM39 Y5V1 C46.175.421 1311529Y 10PF GRM111COG1 C258 1312405Y 12PF GRM39 COG1 C130.165 1312416Y 120PF GRM39 COG1 C1.22.58.67.183.230 1313040Y 13PF GRM40 COG1 C203 1313062Y 13PF GRM39 COG1 C181.234 1314058Y 14PF GRM39 COG1...
  • Page 49 Service Manual PM200 1339130 3.9PF GRH111COG3 C296 1339361Y 390PF GRH111COG3 C124,125 1340077Y GRM40 COG0 C206 1347560Y 4.7PF GRM39 COG4 C299 1347571Y 47PF GRM39 COG4 C25.120.268.300 1347670Y 4.7PF GRM40 COG4 C204 1347724W 470PF C1608 C0G1 C11.89.115.126.139. 140.141.143.144.149. 150.151.152.160.184.+ 220.239.250.252.281. 282.306 1356315Y 5.6PF...
  • Page 50 Service Manual PM200 1447200Z 4.7UF 293D475X00 C153.233.333.335 1447419Z 4.7UF 293D475X00 C24.66.76.142.148.194 236.241 2000035 BFR92A REEL Q2.3.13 2001164 BLT50 (SOT223) 2003069 2SK3075 FET RF PO 2003289 BFP193 TRANSISTO 2003339 KTC4075V-Y-RTK Q18.32.35.37 2003340 KTA2014V-Y-RTK Q905 2003431 NTD20N06LT4G (CASE 2020925 KRA110SPK BRT Q20.21.24.701...
  • Page 51 Service Manual PM200 2232249 MC14066BDR2G IC406 2310777Z LP2951CMX I.C VOLT. 2411798 Z02W5.6Y 5.6V 0.2 D5.22.23 2430494Z KDS226 DIODE CHI D901.902 2430515 KDS184S DIODE SI D8.16 2430526 KDS193 DIODE SI 2430636 KDS181S A3DIODE SWI D11.12.17.19 2430878 UPP9401(T&R)50V 2. 2431040 KDS160 DIODE...
  • Page 52 Service Manual PM200 193.211.212.233. 250.252.262.263.264. 265.266. 271.272.273 276.277.280.282,85 4A6148A 136.4 X 184.7 X 1.6 406753A 18.2 X 10.9 X 1.6T 416172A 145 X 98 X 1.6T F 416180A 102.5 X 37.8 X 1.6T PACKING ASS'Y 91D412 DW1"E" 310(W)X 392 91D423 SW 1S"E"...
  • Page 53 Service Manual PM200 1340121Y GRM39 COG0 C208.217.308.317 1347702Y 470PF GRM39 X7R4 C201 1356315Y 5.6PF GRM39 COG5 C206.211 1370137Y GRM39 COG0 C214.314 1380110Y GRM39 COG0 C306 2000673 2SC5084-O TRANSISTO Q202.203.302.303 2020925 KRA110SPK BRT Q204.304 2420224 1SV229 DIODE VAR D201.202.301 3110517 0.033UH:NL252018T-0 L205.305...

  • Page 54: Contact Details

    Service Manual PM200 Contact Details Should you have any queries regarding this manual, or the information within it, please contact: Maxon House, Cleveland Road, Hemel Hempstead, Hertfordshire, United Kingdom, HP2 7EY Tel: + 44 (0) 1442 267 777 Fax: + 44 (0) 1442 215 515 info@maxoncic.co.uk...

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