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Motorola GP Series Service Information

Professional radio, vhf 136-174mhz
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Professional Radio
GP Series
VHF (136-174MHz)
Service Information
Issue: November 2004

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Summary of Contents for Motorola GP Series

  • Page 1 Professional Radio GP Series VHF (136-174MHz) Service Information Issue: November 2004...
  • Page 2 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 3: Table Of Contents

    Table of Contents Chapter 1 MODEL CHART AND TECHNICAL SPECIFICATIONS 1.0 GP320/GP340/GP360/GP380 Model Chart............1-1 2.0 GP140 Model Chart .....................1-2 3.0 GP640/GP680 Model Chart .................1-2 4.0 GP1280 Model Chart ...................1-3 5.0 GP240/GP280/GP540/GP580 Model Chart............1-4 6.0 Technical Specifications ..................1-5 Chapter 2 THEORY OF OPERATION 1.0 Introduction ......................2-1 2.0 VHF Transmitter....................2-1 2.1 Power Amplifier ....................2-1...
  • Page 4 Chapter 4 VHF PCB/SCHEMATICS/PARTS LISTS 1.0 Allocation of Schematics and Circuit Boards ............4-1 1.1 Controller Circuits................... 4-1 1.2 Voice Storage Facility..................4-1 2.0 VHF PCB 8486062B12 / Schematics ..............4-5 3.0 VHF PCB 8486062B12 Parts List ..............4-13 4.0 VHF PCB 8486101B09 / Schematics (GP1280)..........4-17 5.0 VHF PCB 8086101B09 Parts List (GP1280) .............

  • Page 5: Model Chart And Technical Specifications

    Chapter 1 MODEL CHART AND TECHNICAL SPECIFICATIONS GP320/GP340/GP360/GP380 Model Chart Professional GP300 Series (VHF) Model Description MDH25KDC9AN0_E GP320 VHF 136-174MHz 5W 1-Ch MDH25KDC9AN3_E GP340 VHF 136-174MHz 5W 16-Ch MDH25KDF9AN5_E GP360 VHF 136-174MHz 5W 255-Ch MDH25KDH9AN6_E GP380 VHF 136-174MHz 5W 255-Ch Item Description PMLD4121_...

  • Page 6: Gp140 Model Chart

    MODEL CHART AND TECHNICAL SPECIFICATIONS GP140 Model Chart Professional GP140 (VHF) Model Description MDH25KDC9AA3_E GP140 VHF 136-174 MHz 5W 16 Ch Item Description PMLE4109_ *GP140 UHF Back Cover Kit 6864110B25 GP140 Basic User Guide PMAD4023_ VHF 14cm (150-161 MHz) Antenna HNN9008_ Battery, NiMH Standard x = Indicates one of each is required.

  • Page 7: Gp1280 Model Chart

    GP1280 Model Chart GP1280 Model Chart Professional GP1280 (VHF) Model Description MDH25KDN9CK8_E GP1280 VHF 136-174 MHz 5W Item Description PMLD4120_ *GP1280 VHF Back Cover Kit 6864110B20 GP1280 Basic User Guide PMAD4023_ VHF 14cm (150-161 MHz) Antenna HNN9008_ Battery, NiMH Standard x = Indicates one of each is required.

  • Page 8: Gp240/Gp280/Gp540/Gp580 Model Chart

    MODEL CHART AND TECHNICAL SPECIFICATIONS GP240/GP540/GP280/GP580 Model Chart Professional GP200/GP500 Series (VHF) Model Description MDH25KDC9GC3 GP540 VHF 136-174MHz 5W MDH25KDH9GC6 GP580 VHF 136-174MHz 5W MDH25KDC9GB3 GP240 VHF 136-174MHz 5W MDH25KDH9GB6 GP280 VHF 136-174MHz 5W Item Description *PMLD4170_ GP240/GP540 VHF Back Cover Kit *PMLD4171_ GP280/GP580 VHF Back Cover Kit *PMLD4216_...

  • Page 9: Technical Specifications

    Technical Specifications Technical Specifications Data is specified for +25°C unless otherwise stated. General Specifications Channel Capacity GP140 GP240, GP280 128 in conventional Mode GP320 GP340 GP360, GP380 GP540, GP580 128 in conventional Mode GP640, GP680, GP1280 16 (Conventional) Power Supply Rechargeable battery 7.5v Dimensions: H x W x D (mm) Height excluding knobs GP140/GP240/320/340/360/380/...
  • Page 10 MODEL CHART AND TECHNICAL SPECIFICATIONS Transmitter 136-174 *Frequencies - Full Bandsplit Channel Spacing 12.5/20/25 kHz Frequency Stability ±2.5 ppm (-25°C to +55°C, +25° Ref.) Power 136 - 174 MHz:1-5W ±2.5 @ 12.5 kHz Modulation Limiting ±4.0 @ 20 kHz ±5.0 @ 25 kHz FM Hum &...

  • Page 11: Theory Of Operation

    Chapter 2 THEORY OF OPERATION Introduction This Chapter provides a detailed theory of operation for the VHF 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 12: Antenna Switch

    THEORY OF OPERATION This RF power amplifier is capable of supplying an output power of 0.3W (pin 6 and 7) with an input signal of 2mW (3dBm) (pin16). The current drain is typically around 130mA while operating in the frequency range of 136-174MHz. The LDMOS PA is capable of supplying an output power of 7W with an input signal of 0.3W.

  • Page 13: Vhf Receiver (For All Models Except Those With Pcb8486473Z04)

    VHF Receiver (for all models except those with PCB8486473Z04) VHF Receiver (for all models except those with PCB8486473Z04) The VHF receiver consists of a front end, back end, and automatic gain control circuits. A block diagram of the VHF receiver is shown in Figure 2-2. Detailed descriptions of these features are contained in the paragraphs that follow.

  • Page 14: Receiver Back-End

    THEORY OF OPERATION Both the pre and post-RF amplifier varactor tuned filters have similar responses. The 3 dB bandwidth of the filter is about 12 MHz. This enables the filters to be electronically controlled by using a single control voltage which is DACRx. The output of the post-RF amplifier filter is connected to the passive double balanced mixer which consists of T3301, T3302, and CR3301.

  • Page 15: Automatic Gain Control (Agc)

    VHF Receiver (for all models except those with PCB8486473Z04) Automatic Gain Control (AGC) ( Refer to the 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 16: Receiver Front-End

    THEORY OF OPERATION Receiver (for models with PCB 8486473Z04) 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 U3220 Limiter Demodulator Recovered Audio RSSI 455kHz...

  • Page 17: Receiver Back-End

    Receiver (for models with PCB 8486473Z04) Both the pre and post-RF amplifier varactor tuned filters have similar responses. The 3 dB bandwidth of the filter is about 12 MHz. This enables the filters to be electronically controlled by using a single control voltage which is DACRx . The output of the post-RF amplifier filter is connected to the passive double balanced mixer which consists of T3301, T3302 and CR3301.

  • Page 18: Automatic Gain Control (Agc)

    THEORY OF OPERATION Automatic Gain Control (AGC) ( Refer to the 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. This prevents overloading of backend circuits and is achieved by drawing some of the output power from the RF amplifier output.

  • Page 19: Synthesizer

    Frequency Generation Circuit In addition to the VCO, the synthesizer must interface with the logic and ASFIC circuitry. Programming for the synthesizer is accomplished through the data, clock and chip select lines (pins 7, 8 and 9) from the microprocessor, U409. A 3.3V dc signal from pin 4 indicates to the microprocessor that the synthesizer is locked.

  • Page 20: Voltage Controlled Oscillator (Vco)

    2-10 THEORY OF OPERATION Voltage Controlled Oscillator (VCO) ( Refer to Figure 2-6 and the VHF Voltage Controlled Oscillator schematic diagram) The VCOB IC (U3801), shown in Figure 2-6, in conjunction with the Fractional-N synthesizer (U3701) generates RF in both the receive and the transmit modes of operation. The TRB line (U3801 pin 19) determines which oscillator and buffer are enabled.
  • Page 21 Frequency Generation Circuit 2-11 Table 2-1 Level Shifter Logic Desired AUX 4 AUX 3 Mode n.u. High (@3.2V) High (@3.2V) n.u. Battery Saver n.u. Hi-Z/Float Hi-Z/Float (@1.6V) (@1.6V) In the receive mode, U3801 pin 19 is low or grounded. This activates the receive VCO by enabling the receive oscillator and the receive buffer of U3801.

  • Page 22: Voice Storage (Gp1280)

    2-12 THEORY OF OPERATION Voice Storage (GP1280) ( Refer to Figure 2-7 and the VHF 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. The Voice Storage feature enables users to: Record and Playback Personal Memo (Reminders, Notes, etc.).
  • Page 23 Voice Storage (GP1280) 2-13 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 24 2-14 THEORY OF OPERATION...

  • Page 25: Troubleshooting Charts

    Chapter 3 TROUBLESHOOTING CHARTS Troubleshooting Flow Chart for Receiver, for all models except those with PCB 8486473Z04 (Sheet 1 of 2) START Bad SINAD Bad 20dB Quieting No Recovered Audio udio Check Controller at pin 27 of U3220? Spray of inject 1st IF into XTAL Filter IF Freq: 45.1MHz Check Q3270 bias...

  • Page 26: Troubleshooting Flow Chart For Receiver For All Models Except Those With Pcb 8486473Z04

    TROUBLESHOOTING CHARTS Troubleshooting Flow Chart for Receiver for all models except those with PCB 8486473Z04 (Sheet 2 of 2) Inject RF into J3501 Q3200 Trace IF signal collector OK? IF Signal from C3200 to IF signal at C3200? Q3200. Check for present? bad XTAL filter.
  • Page 27 Troubleshooting Flow Chart for Receiver, for models with PCB 8486473Z04 (Sheet 1 of 2) Troubleshooting Flow Chart for Receiver, for models with PCB 8486473Z04 (Sheet 1 of 2) START Bad SINAD Bad 20dB Quieting No Recovered Audio Check Controller Audio at pin (in the case of no audio) 8 of U3220? OR ELSE go to “B”...

  • Page 28: Troubleshooting Flow Chart For Receiver For Models With Pcb 8486473Z04

    TROUBLESHOOTING CHARTS Troubleshooting Flow Chart for Receiver, for models with PCB 8486473Z04 (Sheet 2 of 2) Inject RF into J3501 Trace IF signal Q3200 collec- from L3200 to IF Signal at tor OK? Q3200. Check for L3200? IF signal bad XTAL filter. present? Before replacing U3220, check...

  • Page 29: Troubleshooting Flow Chart For Transmitter

    Troubleshooting Flow Chart for Transmitter Troubleshooting Flow Chart for Transmitter START No Power There B+ Bias for Check Q3561 Ant switch D3521 Control Voltage High Check PCIC Current or Low at TP3502 High 1. Check Pin Diodes Check Drive to 2.

  • Page 30: Troubleshooting Flow Chart For Synthesizer

    TROUBLESHOOTING CHARTS Troubleshooting Flow Chart for Synthesizer 3.3V Start at U3701 Check pins 5, 20, U3201, 34 & 36 L3731 Visual Check D3701, Correct check of the D3702, U3701, Problem Board C3701 - C3707 Is U3701 16.8MHz 16.8MHz at pin 6 of Replace Pin47 AT = 13 signal at...

  • Page 31: Troubleshooting Flow Chart For Vco

    Troubleshooting Flow Chart for VCO Troubleshooting Flow Chart for VCO START No LO? Check R3811, U3801 L3811 for dry Carrier? Pin 10 TRB = 3.2V joint or faulty >1V? VCO OK L3831, Change L3831, L3832 L3832 L3833 O/C? AUX 3 at Check U3701 R3829...

  • Page 32: 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 33: 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 34 3-10 TROUBLESHOOTING CHARTS...
  • Page 35 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 PCB is shown in Tables 4-2 and 4-4 below.
  • Page 36 VHF PCB/SCHEMATICS/PARTS LISTS Table 4-2 VHF GP1280 Diagrams and Parts Lists PCB : 8486101B09 Main Board Top Side Page 4-17 8486101B09 Main Board Bottom Side Page 4-18 8486101B10 Main Board Top Side Page 4-31 8486101B10 Main Board Bottom Side Page 4-32 SCHEMATICS Controls and Switches Page 4-7...
  • Page 37 Allocation of Schematics and Circuit Boards Table 4-4 VHF GP1280 Diagrams and Parts Lists PCB : 8486101B11 Main Board Top Side Page 4-55 8486101B11 Main Board Bottom Side Page 4-56 SCHEMATICS Controls and Switches Page 4-39 Receiver Front End Page 4-40 Receiver Back End Page 4-41 Synthesizer...
  • Page 38 VHF PCB/SCHEMATICS/PARTS LISTS...

  • Page 39: Vhf Pcb 8486062B12 / Schematics

    VHF PCB 8486062B12 / Schematics VHF PCB 8486062B12 / Schematics VR444 VR440 C523 R410 SH400 E408 E407 PB503 PB502 PB504 PB501 C3205 C521 R3200 C505 C522 E409 C423 R437 R3217 C3212 C3213 SH3203 R3206 C3208 Y3761 R3207 Reference SH3201 Oscillator R3209 C3271 C3280...
  • Page 40 VHF PCB 8486062B12 / Schematics VR441 VR442 C436 C437 R426 E405 R420 C3241 C3219 C3223 E404 R3219 D3761 C3227 C3240 E406 C3763 S502 C3236 R3224 R3222 R414 Y3762 E403 R3223 C3224 R3222 C3237 C3243 E402 R3760 U3220 C3244 B501 R3761 CR501 R463 LVZIF...
  • Page 41 VHF PCB 8486062B12 / Schematics 16_8MHz_1_SW 16_8MHz_2_SW 16.8MHz 5V_1_SW 5V_2_SW 5V_3_SW 5V_4_SW 5V_5_SW CLK_1_SW CLK_2_SW CLK_3_SW CLK_4_SW CLK_5_SW CSX_1_SW CSX_2_SW DACRX_2_SW DACRx_1_SW DACRx SB3_1_SW DATA_4_SW DATA_1_SW DATA_2_SW DATA_3_SW DATA_5_SW RTA1_1_SW DATA RTA1 RTA1 RTA0_1_SW SQ_OUT_1_SW SQ_OUT_2_SW RTA0 RTA0 SQ_OUT EMER_1_SW EMER EMER RSSI_2_SW...
  • Page 42 VHF PCB 8486062B12 / Schematics R5_2_FE R5_3_FE C3320 C3337 C3309 R3316 82pF .022uF 0.1uF L3309 150nH R3322 UNSWB_PLUS_1_RX UNSWB_PLUS_2_RX R3321 R3323 UNSWB+ IF_1_FE C3308 L3304 330pF 470nH C3336 10uF C3307 C3315 R3315 100pF 10pF mgc_comps T3301 C3317 R3310 39pF C3313 C3316 150pF 3.3pF...
  • Page 43 VHF PCB 8486062B12 / Schematics Vdd_FILTERED Vdd_FILTERED C3208 R5_3_ZIF R3209 0.1uF R3220 R3200 R3206 4.7K Q3201 RSSI C3220 100K C3204 R3201 C3205 10pF .01uF 2.2K 0.1uF L3221 R3207 R3208 R3212 4.7K 2.9V C3228 R3221 Y3200 .01uF C3229 C3210 1000pF C3225 XTAL R3202 100pF...
  • Page 44 4-10 VHF PCB 8486062B12 / Schematics U3711 7.5V ADP3300 ADP3300 5V_1_FN SWB_PLUS_1_FN (SOURCE) SWB+ C3715 C3711 470pF 10uF L3701 C3713 C3712 C3701 390nH 2.2uF .01uF 0.1uF A2 5 R3701 C3702 A1 6 .01uF D3701 C3710 C3703 2.2uF .01uF C3704 .01uF 2 K3 1 K2 13.2V...
  • Page 45 VHF PCB 8486062B12 / Schematics 4-11 Vdda Vdda Vdda_3_VCO VSF_1_VCO VSF_1_VCO Vdda_3_VCO 3.3V 4.55V 3.3V 4.55V R5_1_VCO L3813 R5_1_VCO R:4V L3813 R:4V R3817 T: 2.8V R3817 T: 2.8V R3802 R3811 R, T: 3.5V-9.5V R3802 R:4.6V R3811 R, T: 3.5V-9.5V R:4.6V @ 135MHz-174MHz T: 0V @ 135MHz-174MHz...
  • Page 46 4-12 VHF PCB 8486062B12 / Schematics RESET UNSWB+ UNSWB+ UNSWB+ RESET_1_PA 5V_2_PA DATA UNSWB+ C3571 C3570 330pF 470pF CLK_2_PA R3570 DATA_2_PA R3569 CSX_2_PA Q3561 UNSW_LPLUS_3_PA 5.6K C3560 UNSWB_LPLUS_2_PA GND2 BPOS R3561 DATA U3502 TEMP 09Z46 LM50C C3566 F168 100pF 5185963A15 VOUT R3571 R3566...

  • Page 47: Vhf Pcb 8486062B12 Parts List

    VHF PCB 8486062B12 Parts List 4-13 VHF PCB 8486062B12 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Part No Part No Part No Circuit Motorola Description C3301 2113743N20 5.6 PF +-.5PF COG C3534 2113740F19 CHIP CAP, CER 4.7PF...
  • Page 48 4-14 VHF PCB 8486062B12 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No Part No Part No Part No C428 2113743M24 100000 PF +80-20% Y5V C511 2113743N50 100 PF 5% COG L3305 2462587T35...
  • Page 49 0662057M56 180 5% 20X40 R3503 0662057M61 300 5% 20X40 R3836 0662057M98 10K 5% 20X40 R505 0662057M98 10K 5% 20X40 * Motorola Depot Servicing only R3505 0662057M62 330 5% 20X40 R400 0662057N15 47K 5% 20X40 R506 0662057N15 47K 5% 20X40 R3512...
  • Page 50 4-16 VHF PCB 8486062B12 Parts List Intentionally Left Blank...

  • Page 51: Vhf Pcb 8486101B09 / Schematics (Gp1280)

    VHF PCB 8486101B09 / Schematics (GP1280) 4-17 VHF PCB 8486101B09 / Schematics (GP1280) VR444 VR440 C523 R410 C423 R4008 R4009 C4016 PB503 PB502 PB504 PB501 C4015 C3205 R3200 C521 R4007 C522 C519 C505 R437 R3215 C4014 R418 R3214 C4013 C3212 C3213 C4012 R3206...
  • Page 52 4-18 VHF PCB 8486101B09 / Schematics (GP1280) M704 M705 M706 VR441 SH402 VR442 C436 C4006 L505 C437 R426 R4005 C3223 C3219 R420 C3240 C3241 R3219 D3761 R4004 C3227 R703 C709 C708 R4006 C3763 S502 R3222 VR506 C3236 R414 R3224 C3243 Y3762 R4003 C3237...
  • Page 53 VHF PCB 8486101B09 / Schematics (GP1280) 4-19 Vddd Vddd CR700 Vddd IF_Vddd_1_VOICE Vddd R717 C4012 C4014 2.2K C4010 C4016 C4002 C4004 C4008 100pF C4013 SWB+ C4001 C4009 C4011 C4015 C4007 C4003 R710 C4005 100pF U710-1 C708 C710 470K C709 C702 C701 MC74HC4066 0.1uF...
  • Page 54 4-20 VHF PCB 8486101B09 / Schematics (GP1280) Intentionally Left Blank...

  • Page 55: Vhf Pcb 8086101B09 Parts List (Gp1280)

    VHF PCB 8086101B09 Parts List (GP1280) 4-21 VHF PCB 8086101B09 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description (GP1280) Part No Part No Part No C3276 2113743N42 47.0 PF 5% C3519 2113740F35 REEL CL1 +/-30 22 C3721 2113743E20 CHIP.
  • Page 56 4-22 VHF PCB 8086101B09 Parts List (GP1280) Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No Part No Part No Part No C4001 2113743N50 100 PF 5% C466 2113743N50 100 PF 5% CR3301 4802245J42 RING QUAD SOT-143 PKG...
  • Page 57 VHF PCB 8086101B09 Parts List (GP1280) 4-23 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No Part No Part No Part No Q3721 4802245J50 DUAL NPN/PNP UMC5N R3314 0662057M26 10 5% 20X40 R3811 0662057M50 100 5% 20X40...
  • Page 58 4-24 VHF PCB 8086101B09 Parts List (GP1280) Circuit Motorola Description * Motorola Depot Servicing only Part No Reference designators with an asterisk indicate SH3701 2680511Z01 SHIELD SYNTHESIZER components which are not field replaceable SH3702 2680511Z01 SHIELD SYNTHESIZER because they need to be calibrated with...

  • Page 59: Vhf Pcb 8486062B14

    VHF PCB 8486062B14 4-25 VHF PCB 8486062B14 VR444 VR440 SH400 C523 R410 E408 E407 PB503 PB502 PB504 PB501 C521 C3205 R3200 C522 C505 E409 C423 R437 R3217 SH3203 C3213 C3212 C3208 R3206 Y3761 R3207 Reference SH3201 Oscillator R3209 C3271 C3280 Crystal Y3200 C3270...
  • Page 60 4-26 VHF PCB 8486062B14 M301 M101 M400 VR441 VR442 SH402 C436 SH3202 C437 R420 R426 E405 C3223 C3219 C3241 C3242 E404 R3219 C3227 D3761 C3240 C3763 E406 R3222 R3224 VR506 C3236 S502 R414 E403 B501 C3237 R3223 C3224 C3222 Y3762 E402 C3243 R3760...

  • Page 61: Vhf Pcb 8486062B14 Parts List

    VHF PCB 8486062B14 Parts List 4-27 VHF PCB 8486062B14 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Part No Part No Part No C3280 2113743L41 10000 PF 10% C3533 2113740F24 REEL CL1+/-30 7.5 C3752 2113743L17 1000 PF 10%...
  • Page 62 4-28 VHF PCB 8486062B14 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No Part No Part No Part No C427 2113743N50 100 PF 5% COG C4021 2113743L17 1000PF 10% not in GP320 PB502...
  • Page 63 R506 0662057N15 47K 5% 20X40 R3543 0662057M50 100 5% 20X40 R409 0662057M98 10K 5% 20X40 RT400 0680590Z01 THERMISTOR_33K * Motorola Depot Servicing only R3544 0662057A25 100 OHMS 5% R410 0662057N23 100K 5% 20X40 S501 4080710Z01 SWITCH (FREQUENCY) R3545 0662057A25 100 OHMS 5%...
  • Page 64 4-30 VHF PCB 8486062B14 Parts List Intentionally Left Blank...

  • Page 65: Vhf Pcb 8486101B10

    VHF PCB 8486101B10 4-31 VHF PCB 8486101B10 VR444 VR440 C523 R410 C423 R4008 R4009 C4016 PB503 PB502 PB504 PB501 C521 C4015 C3205 R3200 R4007 C522 C519 C505 R437 C4014 R3215 R418 R3214 C4013 C3212 C3213 C4012 R3206 R3207 C4011 C3208 SH3201 C4010 R3209...
  • Page 66 4-32 VHF PCB 8486101B10 M704 M705 M706 VR441 SH402 VR442 C436 C4006 L505 C437 R426 R4005 C3240 C3223 C3219 R420 C3241 R3219 D3761 R4004 C3227 C709 C708 R703 C3763 R4006 S502 R3222 VR506 C3236 R414 R3224 C3243 Y3762 R4003 C3237 C3222 U3220 R4002...

  • Page 67: Vhf Pcb 8486101B10 Parts List (Gp1280)

    VHF PCB 8486101B10 Parts List (GP1280) 4-33 VHF PCB 8486101B10 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description (GP1280) Part No Part No Part No C3276 2113743N42 47.0 PF 5% C3519 2113740F35 REEL CL1 +/-30 22 C3721 2113743E20 CHIP.
  • Page 68 4-34 VHF PCB 8486101B10 Parts List (GP1280) Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No Part No Part No Part No C4001 2113743N50 100 PF 5% C466 2113743N50 100 PF 5% CR3301 4802245J42 RING QUAD SOT-143 PKG...
  • Page 69 VHF PCB 8486101B10 Parts List (GP1280) 4-35 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No Part No Part No Part No Q3721 4802245J50 DUAL NPN/PNP UMC5N R3316 0662057M66 470 5% 20X40 R3817 0662057M01 0 5% 20X40...
  • Page 70 4-36 VHF PCB 8486101B10 Parts List (GP1280) Circuit Motorola Description * Motorola Depot Servicing only Part No Reference designators with an asterisk indicate SH3701 2680511Z01 SHIELD SYNTHESIZER components which are not field replaceable SH3702 2680511Z01 SHIELD SYNTHESIZER because they need to be calibrated with SH3801 2680513Z01 SHIELD VCO TOP specialized factory equipment after installation.

  • Page 71: Vhf Pcb 8486062B16

    VHF PCB 8486062B16 / Schematics 4-37 10.0 VHF PCB 8486062B16 / Schematics VR444 VR440 SH400 C523 R410 C423 E407 E409 PB503 PB502 PB504 PB501 C521 C3205 R3200 R437 C522 C505 E408 R3214 R418 SH3203 C3212 C3213 R3215 C3208 R3206 R3207 SH3201 R3209 Y3761...
  • Page 72 4-38 VHF PCB 8486062B16 / Schematics M301 M101 M400 VR441 VR442 REV J 8486062B16 SH402 C436 C437 R426 SH3202 E405 R420 C3223 C3219 C3240 C3241 E404 R3219 D3761 C3227 E406 C3763 R3222 S502 R3224 VR506 C3236 R414 E403 C3243 C3237 C3224 C3222 Y3762...
  • Page 73 VHF PCB 8486062B16 / Schematics 4-39 UNSWB+ F501 mgc_comps S502 PB505 MECH_SWB+ SWITCH B501 TAB2 BATT_CODE DATA EMER L505 C503 C535 C502 390nH 1000pF 0.47uF 100pF VR506 VR439 TAB1 6.8V CR501 C520 .01uF PB501 SWITCH Vdda LI_ION B503 VR440 C521 6.8V .01uF 6.8V...
  • Page 74 4-40 VHF PCB 8486062B16 / Schematics R5_2_FE R5_3_FE C3320 82pF C3337 C3309 R3316 .022uF 0.1uF L3309 150nH R3321 R3322 UNSWB_PLUS_1_RX UNSWB_PLUS_2_RX R3323 UNSWB+ IF_1_FE L3304 C3308 470nH 330pF C3336 10uF C3307 R3315 100pF C3315 T3301 10pF R3310 C3317 39pF C3311 C3312 C3313 C3318...
  • Page 75 VHF PCB 8486062B16 / Schematics 4-41 Vdd_FILTERED Vdd_FILTERED C3208 R3209 0.1uF R3200 R3220 4.7K R3206 C3220 RSSI Q3201 C3204 R3201 C3205 .01uF 100K 0.1uF 2.2K 10pF L3221 C3239 R3207 R3208 R3212 .022uF 4.7K R3221 C3228 C3229 R3202 .01uF C3210 C3225 100pF 4.7K Y3200...
  • Page 76 4-42 VHF PCB 8486062B16 / Schematics U3711 mgc_comps 5V_1_FN 5V_2_FN SWB_PLUS_1_FN (SOURCE) SWB+ C3715 C3711 10uF 470pF L3701 C3712 C3713 390nH 2.2uF 0.1uF 2 K2 A2 5 C3701 .01uF A1 6 R3701 D3701 C3702 .01uF C3710 2.2uF C3703 .01uF BIAS_ADJ C3704 .01uF BIAS_ADJ_1_FN...
  • Page 77 VHF PCB 8486062B16 / Schematics 4-43 Vdda VSF_1_VCO Vdda_3_VCO R5_1_VCO L3813 R3817 R3811 R3802 C3822 C3813 D3821 1000pF C3810 L3811 C3812 R3818 .01uF L3812 C3811 C3830 VCTRL_1_VCO C3825 10pF C3804 100nH 100nH 0.1uF 0.1uF 15pF 68pF VCTRL 0.1uF L3824 C3818 R3828 .022uF R3821...
  • Page 78 4-44 VHF PCB 8486062B16 / Schematics RESET UNSWB+ UNSWB+ UNSWB+ DATA CLK UNSWB+ 5V_2_PA RESET_1_PA C3571 BIAS_TUNING C3570 470pF 330pF R3570 CLK_2_PA DATA_2_PA R3569 Q3561 CSX_2_PA UNSW_LPLUS_3_PA 5.6K C3560 UNSWB_LPLUS_2_PA GND2 BPOS DATA U3502 R3561 H99S-4 TEMP RSET LM50C C3566 5185963A15 F168 100pF...

  • Page 79: 11.0 Vhf Pcb 8486062B16 Parts List

    VHF PCB 8486062B16 Parts List 4-45 11.0 VHF PCB 8486062B16 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Part No Part No Part No C3275 2113743N44 56pF C3521 2111078B51 220pF C3722 2113743E20 0.10uF, 10% Circuit Motorola Description...
  • Page 80 4-46 VHF PCB 8486062B16 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No Part No Part No Part No C402 2113928N01 0.1uF, 10% C467 2113928N01 0.1uF, 10% D3701 4802233J09 Triple diode L3551 2479990N01 43.67nH...
  • Page 81 VHF PCB 8486062B16 Parts List 4-47 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No Part No Part No Part No R3200 0662057M54 R3505 0662057M62 R3831 0662057M98 R463 0662057M61 R3201 0662057M82 2200 R3506 0662057B62 R3832...
  • Page 82 16.8MHz Xtal oscillator (SMD) 5480678Z01 PCB Bar Code Label 8486062B16 VHF main PC Board * Motorola Depot Servicing only Reference designators with an asterisk indicate components which are not field replaceable because they need to be calibrated with specialized factory equipment after installation.
  • Page 83 VHF PCB 8486062B17 / Schematics 4-49 12.0 VHF PCB 8486062B17 / Schematics VR444 VR440 C523 R410 E407 E409 PB503 PB502 PB504 C521 PB501 C3205 R3200 C522 R437 C3212 C3213 R3209 C3270 R3202 Y3200 C3279 C3210 C3278 C3277 R3226 R3275 U405 R3212 R3225 C3203...
  • Page 84 4-50 VHF PCB 8486062B17 / Schematics M401 M300 M100 TP3502 R3571 R3572 R3573 SH403 C3568 C415 C3560 L3523 Q410 R3566 C3569 C430 C3526 C440 C3565 C414 L3812 R436 L3813 C476 R3565 C450 C451 C3563 C478 C3562 R3805 C410 R3564 J3501 L3826 C409 R3832...

  • Page 85: 13.0 Vhf Pcb 8486062B17

    VHF PCB 8486062B17 4-51 13.0 VHF PCB 8486062B17 Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Part No Part No Part No Circuit Motorola Description C3276 2113743N42 47pF C3523 2111078B44 120pF C3724 2311049A08 Part No C3277 2113743N48 82pF C3524...
  • Page 86 4-52 VHF PCB 8486062B17 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No Part No Part No Part No C4020 2113743L17 1000pF, 10% C471 2113743L09 470pF, 10% D3702 4802233J09 Triple diode L3552 2479990A02 7.66nH, 10%...
  • Page 87 VHF PCB 8486062B17 4-53 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No Part No Part No Part No R3201 0662057M82 2200 R3506 0662057B62 R3832 0662057N01 R471 0662057M92 5600 R3202 0662057M90 4700 R3507 0662057B62 R3833...
  • Page 88 PCB Bar Code Label 8486062B16 VHF main PC Board 8486062B17 VHF main PC Board * Motorola Depot Servicing only Reference designators with an asterisk indicate components which are not field replaceable because they need to be calibrated with specialized factory equipment after installation.

  • Page 89: Vhf Pcb 8486101B11

    VHF PCB 8486101B11 / Schematic 4-55 14.0 VHF PCB 8486101B11 / Schematic VR440 C523 R410 R4007 R4009 C4016 VR444 PB503 PB502 PB504 PB501 C4015 C3205 R3200 C522 R437 C521 C4014 C4013 C3212 C3213 C4012 C4011 C4010 R3209 C3270 C4009 Y3200 R3202 C3279 C4008...
  • Page 90 4-56 VHF PCB 8486101B11 / Schematic M401 M300 M100 TP3502 R3571 R3572 R3573 SH403 C3568 C3560 L3523 Q410 C415 C3569 C430 R3566 C3526 C440 L3813 C3565 C414 L3812 C476 R436 R3565 C450 C3563 C478 C451 R3805 C410 C3562 R3564 J3501 L3826 C409 R3832...

  • Page 91: 15.0 Vhf Pcb 8486101B11 Parts List

    VHF PCB 8486101B11 Parts List 4-57 15.0 VHF PCB 8486101B11 Parts List Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Ref. Part No. Ref. Part No. Ref. Part No. Circuit Motorola Description C3270 2113743E07 0.022uF C3339 2113743N26 10pF C3567...
  • Page 92 4-58 VHF PCB 8486101B11 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. C3803 2113743L17 1000pF C4020 2113743L17 1000pF C463 2113743N50 100pF C708 2113928N01 0.1uF...
  • Page 93 VHF PCB 8486101B11 Parts List 4-59 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Ref. Part No. Ref. Part No. Ref. Part No. Ref. Part No. L3301 2462587T35 12nH L505 2462587Q42 390nH R3218 NOTPLACED R3519 0680539Z01...
  • Page 94 R406 0662057N20 R476 0662057N35 330K SH403 2680516Z01 Asfic_Cmp, Audio PA Shield R407 0662057N19 R477 0662057M74 * Motorola Depot Servicing only SH701 2680677Z01 Voice Storage Shield R408 NOTPLACED R478 0662057M98 Reference designators with an asterisk indicate T3301 2580541Z02 Balun Transformer R409...

  • Page 95: Vhf Pcb 8486473Z04

    VHF PCB 8486473Z04 / Schematics 4-61 16.0 VHF PCB 8486473Z04 / Schematics VR444 VR440 C523 R410 E407 E409 C521 R437 C522 SH3203 C3202 Y3205 C3206 C3278 U405 C3225 TP3702 J400 R506 C3201 TP3701 L3200 U3221 R3741 Q505 R3208 C3741 C3208 R505 C3742 C426...
  • Page 96 4-62 VHF PCB 8486473Z04 / Schematics TP3502 R3571 R3572 R3573 SH403 C3568 C415 L3523 C3560 Q410 R3566 C430 C3569 C3526 C440 C3565 C414 L3812 L3813 C476 R436 R3565 C450 C451 C478 C3563 R3805 C3562 C410 R3832 R3564 J3501 C409 L3826 C3567 C3561 C408...
  • Page 97 VHF PCB 8486473Z04 / Schematics 4-63 UNSWB+ F501 mgc_comps PB505 S502 MECH_SWB+ SWITCH B501 TAB2 BATT_CODE DATA EMER L505 C503 C535 C502 390nH 100pF 1000pF 1000pF 0.47uF VR506 VR439 TAB1 6.8V CR501 C520 .01uF PB501 SWITCH Vdda LI_ION B503 VR440 C521 6.8V .01uF...
  • Page 98 4-64 VHF PCB 8486473Z04 / Schematics R5_2_FE R5_3_FE C3320 82pF R3316 C3337 C3309 L3309 .022uF 0.1uF 0.1uF 150nH R3321 R3322 UNSWB_PLUS_1_RX UNSWB_PLUS_2_RX UNSWB+ IF_1_FE L3304 C3308 470nH 330pF R3323 C3336 10uF C3307 R3315 100pF C3315 T3301 10pF R3310 C3317 2.7K C3312 30pF C3311...
  • Page 99 VHF PCB 8486473Z04 / Schematics 4-65 Y3203 R3209 CFWC455E 1 IN R3212 U3221-1 TC7W04F C3225 0.1uF U3221-2 R3276 100K TC7W04F U3221-3 TC7W04F BW_SEL U3221-4 PWR_GND C3208 R3211 R3205 0.1uF Y3204 CFWC455G OUT 2 CR3202 CR3203 R3206 R3208 R3207 C3226 C3238 0.1uF 0.1uF Y3205...
  • Page 100 4-66 VHF PCB 8486473Z04 / Schematics U3711 mgc_comps 5V_1_FN 5V_2_FN SWB_PLUS_1_FN (SOURCE) SWB+ C3711 C3715 10uF 470pF L3701 C3713 C3712 390nH 2.2uF 0.1uF 2 K2 C3701 A2 5 .01uF A1 6 R3701 D3701 C3702 .01uF C3710 2.2uF C3703 .01uF BIAS_ADJ C3704 .01uF BIAS_ADJ_1_FN...
  • Page 101 VHF PCB 8486473Z04 / Schematics 4-67 Vdda VSF_1_VCO Vdda_3_VCO R5_1_VCO L3813 R3817 R3811 R3802 C3822 C3813 D3821 1000pF C3810 L3811 C3812 .01uF L3812 C3811 R3818 C3830 VCTRL_1_VCO C3825 10pF 100nH 0.1uF C3804 100nH 0.1uF 15pF 68pF VCTRL 0.1uF L3824 C3818 R3828 .022uF R3821...
  • Page 102 4-68 VHF PCB 8486473Z04 / Schematics RESET UNSWB+ UNSWB+ DATA CLK UNSWB+ UNSWB+ 5V_2_PA RESET_1_PA C3571 470pF BIAS_TUNING C3570 330pF CLK_2_PA R3570 DATA_2_PA Q3561 CSX_2_PA UNSW_LPLUS_3_PA R3569 C3560 5.6K UNSWB_LPLUS_2_PA GND2 BPOS R3561 DATA U3502 H99S-4 TEMP LM50C RSET C3566 F168 5185963A15 100pF...
  • Page 103 VHF PCB 8486473Z04 Radio Parts List 4-69 17.0 VHF PCB 8486473Z04 Radio Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Parts List Part No. Part No. Part No. Circuit Motorola C3302 2113743N54 150pF C3502 2113743N38 33pF C3560 2311049A07 Description Part No.
  • Page 104 4-70 VHF PCB 8486473Z04 Radio Parts List Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. C3734 2113743L41 10000pF C383 2113743N43 51pF 0.1uF (not placed in C483 2113743L09 470pF...
  • Page 105 VHF PCB 8486473Z04 Radio Parts List 4-71 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. D3551 4880973Z02 Pin Diode L3503 2462587V32 68nH L505 2462587Q42 390nH R3220 NOT PLACED...
  • Page 106 4-72 VHF PCB 8486473Z04 Radio Parts List Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No. R3505 0662057M62 R3727 0662057N23 100K R3835 0662057N15 R448 0662057M98 R3506 0662057B62 R373 NOT PLACED...
  • Page 107 16.8 MHz Crystal Oscillator U3221 5109522E10 Inverter IC 8486473Z04 VHF PC Board U3501 5185130C65 ASFIC CMP IC * Motorola Depot Servicing only U3502 5185765B26 LDMOS Driver IC Reference designators with an asterisk indicate U3503 5185963A15 PCIC components which are not field replaceable...
  • Page 108 4-74 VHF PCB 8486473Z04 Radio Parts List Intentionally Left Blank...

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