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Motorola GP68 Service Manual
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Motorola GP68 Service Manual

Motorola GP68 Service Manual

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See also: Operating Manual , Operation & Installation Manual
GP68 Portable Radios
Service Manual
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6881086C09-O
March, 1997

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Summary of Contents for Motorola GP68

  • Page 1 GP68 Portable Radios Service Manual 6881086C09-O March, 1997...
  • Page 2 *6881086C09* Motorola 8000 W. Sunrise Blvd. 6881086C09-O Ft. Lauderdale, FL 33322...
  • Page 3 Accordingly, any copyrighted Motor- ola 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...

  • Page 4: Table Of Contents

    Performance SpeciÞcations for the GP68 Radio........
  • Page 5 Table of Contents GP68 Portable Radios Service Manual Pre-emphasis Amp ..............2-2 Limiter (Audio Filter IC) .
  • Page 6 Programming the GP68 Radio ........
  • Page 7 Exploded View Parts List for GP68 Radio ........

  • Page 8: Foreword

    GP68 Portable Radios Service Manual Foreword Foreword Scope of Manual Scope of Manual area can vary by vehicle make, model and front compartment configuration (e.g., bench seat vs. bucket seats). This manual is intended for use by experienced techni- •...

  • Page 9: Other Documentation

    If a Motorola part number is identified on a parts list, you should be able to order the part through Motorola Parts and Service Division.

  • Page 10: Model Chart

    Model Chart Model Chart GP68 136 - 174 MHz X = Indicates one of each required Item Description PMLD4036 GP68 VHF RF Board, 20/25 khz PMLD4037 GP68 VHF RF Board, 12.5 khz PMLN4059 GP68 Controller Board PMLN4061 GP68 Display Board PMAD4015 VHF 14cm Antenna (155 —...
  • Page 11 Model Chart Model Chart GP68 430 - 470 MHz X = Indicates one of each required Item Description PMLE4023 GP68 UHF RF Board, 20/25 khz PMLE4024 GP68 UHF RF Board, 12.5 khz PMCE4000 GP68 Controller Board PMLN4061 GP68 Display Board NAE6483A...

  • Page 12: Accessories (Note: Not All Accessories Are Available In All Areas.)

    PMLN4064 DTMF Decode Signalling Retrofit Kit (Pack of ten of PMLN4063) PMLN4067 SmarTrunk II Retrofit Kit (Pack of ten of PMLN4066) Manuals/Videos: 6881086C08 GP68 Radio Service Software Manual (English) 6881086C09 GP68 Service Manual (Spanish/Portuguese) 6881086C10 GP68 User Manual (Spanish/Portuguese) 6804370J40...

  • Page 13: Performance Speciþcations For The Gp68 Radio

    Foreword GP68 Portable Radios Service Manual Performance Specifications for the GP68 Radio Performance Specifications for the GP68 Radio GENERAL RECEIVER Frequency: 136-174 MHz 430-470 MHz Channel Spacing 25kHz 12.5kHz 25kHz 12.5kHz Channel Capacity: 20 Channels Frequency: 136-174 MHz 430-470 MHz Power Supply: 7.5 Volt +/- 20%...

  • Page 14: Service Aids

    GP68 Portable Radios Service Manual Foreword Service Aids Service Aids The following table lists service aids recommended for working on the GP60 Series Radios. Motorola Part Description Application RTX4005 Portable Test Box Enables connection to the audio / accessory jack. Allows switching for radio testing.

  • Page 15: Radio Disassembly/Assembly

    Section 1 Radio Disassembly/Assembly Overview This section explains, step by step, how to disassemble and reassemble the GP60 Series portable radio. Disassemble Radio Remove Battery The battery latches are located at the sides of the radio. Figure 1-2 Slide Battery Cover 3.

  • Page 16: Remove Controller Board

    Radio Disassembly/Assembly GP68 Portable Radios Service Manual Disassemble Radio Figure 1-3 Remove Radio Chassis Figure 1-5 Removing the PTT lever ® 4. Use a TORX head screwdriver to remove the screw (Figure 1-6). 5. Gently lift the bottom of the controller board to...

  • Page 17: Remove Display Board

    GP68 Portable Radios Service Manual Radio Disassembly/Assembly Reassemble Radio Remove Display Board 1. Once the controller board is removed, the whole display board will be visible. 2. Turn the housing so that the front panel but- tons faces upwards (Figure 1-7).

  • Page 18: Replace Battery, Knobs, And Antenna

    Radio Disassembly/Assembly GP68 Portable Radios Service Manual Reassemble Radio NOTE Be careful to loop the flex ribbon cable properly when assembling the chassis onto the housing. Replace Battery, Knobs, and Antenna 1. Replace battery pack by sliding the pack in place.

  • Page 19: Torque Speciþcations Chart

    GP68 Portable Radios Service Manual Radio Disassembly/Assembly Torque Specifications Chart Torque Specifications Chart PART NUM- EXP. VIEW DESCRIPTION SIZE TORQUE (IN./LB.) NUMBER* 0304726J01 Screw, Torx T-6 M2 X 0.4 X 5 mm (to housing, front) (to chassis) 0304725J02 Screw, Machine Metric, M2 X 0.4 X 4 mm...
  • Page 20 Radio Disassembly/Assembly GP68 Portable Radios Service Manual 6881086C09-O March, 1997...

  • Page 21: Theory Of Operation

    VHF and UHF models. Most of the radio processing for Rx and Tx is accomplished in The GP60 Series VHF and UHF radios use the Motorola U451, the Audio Filter IC. The Audio Filter IC performs the...

  • Page 22: Post-Limiter Filter (Audio Filter Ic)

    Theory of Operation GP68 Portable Radios Service Manual Transmit and Receive Audio Circuitry Tx Audio Path Limiter (Audio Filter IC) The audio filter IC U451 contains the limiter circuit, which Internal PTT, MIC Bias Switch and External PTT prevents over-deviation of the RF carrier by symmetrically Sense Circuits clipping the peaks of the modulating voltage.

  • Page 23: Rx Audio Path

    GP68 Portable Radios Service Manual Theory of Operation Transmit and Receive Audio Circuitry path must settle within 1 millisecond of PTT activation to user manual), with open squelch at step 0, and tight squelch prevent center frequency offset. at step 15.

  • Page 24: J403-6

    Theory of Operation GP68 Portable Radios Service Manual Adaptive Power Control Technology J403-6 Radio, this is the CLOCK output from the microcontroller for loading all internal subsystems as well as option boards J403-6 is interfaced to pin 4 of voltage regulator U456. This that require synchronous serial transfers.

  • Page 25: Rf Board

    RF amplifier. The threshold voltage is tapped from the +5VTX and the The RF amplifier, Q1, is a Motorola MMBR941L NPN supply voltage is sensed on the SWB+. C167 is a compensa- device biased in a common emitter configuration.

  • Page 26: Transmitter

    Phillips BLT50 transistor, and the last stage uses cuitry used in the design. Refer to the schematic for refer- the Motorola MRF873 transistor. The VHF PA line-up is ence designator. capable of supplying 5 watts or more of output power, while...

  • Page 27: Synthesizer

    GP68 Portable Radios Service Manual Theory of Operation The GP60 Series Radio Alignment Procedures In addition to the VCO, the synthesizer must interface with through the low pass filter. This is to provide additional iso- the logic and AFIC circuitry. Programming for the synthe- lation to the receive VCO from high level received rf signals.

  • Page 28: Low Port Modulation

    Theory of Operation GP68 Portable Radios Service Manual The GP60 Series Radio Alignment Procedures Low Port Modulation • For power tuning, it is important to ensure that the DC Voltage MUST be maintained under load at 7.5 Tuning Frequency: V +/- 0.1 V (3 A is the current limit).
  • Page 29 5 Volt Regulator 5V µ P Antenna 5 Volt From Regulator Battery Reset Squelch Adjust Audio Fast From 2nd Mixer Harmonic Detect Squelch Attenuator Receiver Battery Filter Mixer Demodulator Audio Carrier Rx Filter Battery Detect Monitor De-emphasis Adapt Volume Lowspeed Tone Generator Detector...

  • Page 30: Block Diagram For Receiver And Transmitter

    RECEIVER BLOCK DIAGRAM 5V RX 2-Pole 2-Pole 3-Pole From Bandpass Crystal Bandpass Antenna Filter Filter Filter Switch 15+ Lo +6dbm Detected audio 5V RX IF IC 2nd LO 4-Pole 4-Pole Ceramic Ceramic TRANSMITTER BLOCK DIAGRAM TX B+ +5V Tx Pre-driver Final Antenna Harmonic...

  • Page 31: Block Diagram For Vco

    VCO BLOCK DIAGRAM 6,7,8,9,12,14,17,18,19,21,22,24 LO RF INJECTION Ext. U251 Pass Buffer VCOBIC STEERING Buffer Filter (UHF Only) Tank LINE VOLTAGE TX RF INJECTION Attenuator Buffer Pass Tank Filter AUDIO Tx/Rx/BS Tx VCO Switching Prescaler Modulation Network Buffer 1,20 AUX 3 (U201 pin 1) FILT 5V (U201 pin 18) PRESCALER RF OUT Pass...

  • Page 32: Block Diagram For Afic

    RX AUDIO AFIC BLOCK DIAGRAM DE-EMPH summing PL REJECTION AUDIO RX INPUT 1 pole LP smoothing Unattn. FILTER BUFFER Rx in Fc = 231 hz stage BUFFER Rx out 7th hp Fc = 300 hz sample & holds 1 pole LP Fc = 9 khz 325 mV RMS 0.2 db ripple cheby...

  • Page 33: Accessory

    Remote Speaker Microphone Overview The remote speaker microphone is an accessory available with the GP68 Series portable radio. This section provides a general description of the remote speaker microphone and describes the operation, handling precautions, and mainte- nance of this accessory.

  • Page 34: Maintenance

    Accessory GP68 Portable Radios Service Manual Remote Speaker Microphone ¥ All electrically powered test equipment should Maintenance be grounded. Apply the ground lead from the test equipment to the unit before connecting the Refer to the schematic diagram (shown in Figure 3-2), the exploded view (shown in Figure 3-3), and the parts lists.

  • Page 35: Parts List

    GP68 Portable Radios Service Manual Accessory Remote Speaker Microphone Parts List HMN9725 Remote Speaker Microphone PL-931024-O REFERENCE MOTOROLA SYMBOL PART NO. DESCRIPTION 0105953N42 Front Housing, items 1 thru 5 3305259Q01 Nameplate, Motorola 4505182Q01 Lever, PTT 3505152J01 Grille, cloth 1105461R01 Adhesive 0180703Y70 Coil cord &...

  • Page 36: Gp68 Option Board

    flex connecting the RF Board to the Overview Controller Board. The DTMF Decode Option Board is an accessory available with the GP68 portable radio. This board requires the radio to Top DTMF Pad be disassembled before it can be installed. Please follow the instructions below carefully.

  • Page 37: Packing List

    GP68 Portable Radios Service Manual Accessory GP68 Option Board Packing List DTMF Decode Option Board DTMF Decode Signalling Retrofit Kit Instruction (English) Programming DTMF Codes Dealer Programming You may now program the DTMF Decode codes into the radio. Enter the Special Programming Mode by pressing the key, then turn the radio on.

  • Page 38: Dtmf Decoder Option Board (Pmln4063)

    Accessory GP68 Portable Radios Service Manual DTMF Decoder Option Board (PMLN4063) DTMF Decoder Option Board (PMLN4063) VIEWED FROM SIDE 1 GP68 DTMF ILLUSTRATOR DATE ENGINEER DATE 1/9/97 EDITOR DATE CHECKER DATE AM/RG LETTERING SIZE: REQUIRES: MAEPF-25974-O VIEWED FROM SIDE 2...
  • Page 39 GP68 Portable Radios Service Manual Accessory DTMF Decoder Option Board (PMLN4063) Parts List PMLN4063A, DTMF Decode Signalling Retrofit Kit REFERENCE MOTOROLA DESCRIPTION SYMBOL PART NO. CAPACITOR, Fixed : +-5%; 50V unless stated C701, C702 2113741F49 10nF C703 2311049J26 10uF, 16V...
  • Page 40 Accessory GP68 Portable Radios Service Manual DTMF Decoder Option Board (PMLN4063) 6881086C09-O March, 1997...

  • Page 41: Radio Programming Information

    R417 with a 51K 3. clone these parameters over to all your cus- resistor to disable the programming function. tomersÕ radios (the UserÕs radios) Crystal Jumper R417 Figure 4-1 Location of the Jumper R417 on the GP68 Radio. March, 1997 6881086C09-O...

  • Page 42: Cloning Radio Parameters To User Radios

    (if any, which are stored in Signalling System • SPM Parameters: All User Modifiable parameters. One or in Full Serial Option Board) is not cloned. Additionally, when cloning the GP68 radios, the following parameters are also cloned: NOTE • Active User Parameters: PTT ID Transmit Enable/ Cloning will take approximately 3-5 seconds.

  • Page 43: Error Conditions

    GP68 Portable Radios Service Manual Radio Programming Information Option Board Setup Mode The slave radio displays the following message When cloning is completed, both radios will reset auto- (Figure 4-4) while it is being programmed. matically. Disconnect radios from the cloning cable. They are now ready for operation.

  • Page 44: Programming The Gp68 Radio

    Radio Programming Information GP68 Portable Radios Service Manual Programming the GP68 Radio Programming the GP68 Radio Select the desired frequency, type of TX offset and off- set frequency (see page 4-5 onwards). Operator Controls and Indicators Press and hold the Enter Button for 3 seconds.

  • Page 45: To Enable Or Disable Ptt Id Transmission

    GP68 Portable Radios Service Manual Radio Programming Information Programming the GP68 Radio A valid keypress tone sounds when the memory channel data has been successfully copied over CTCSS to the MHz mode. To Enable or Disable PTT ID Transmission Figure 4-9 LCD Display for Changing Default Squelch The radio transmits a programmable DTMF identification...

  • Page 46: To Select A Receive Frequency

    Radio Programming Information GP68 Portable Radios Service Manual Programming the GP68 Radio When the frequency step size passes the upper or buttons on the keypad. lower limit, the radio loops to the opposite limit and sounds a wrap-around tone. The LCD is updated after each keypress.

  • Page 47: To Select The Tx Offset

    ONLY if you have completely keyed in the desired frequency (a partially-entered fre- For the GP68, the transmit frequency can be the same as the quency is NOT stored by the radio). receive frequency (no offset), it can have a standard positive or negative offset, or it can be a user-defined TX frequency.

  • Page 48: To Select The Transmit Pl/Dpl Code

    Radio Programming Information GP68 Portable Radios Service Manual Programming the GP68 Radio NOTE CTCSS If you reach the upper or lower limit of the PL/DPL codes, the displayed code wraps around to the opposite limit and starts to Figure 4-19 .

  • Page 49: Programming And Option Boards

    GP68 Portable Radios Service Manual Radio Programming Information Programming and Option Boards Receive and Transmit PL/DPL Code page 4-9, gives the PL frequencies, equivalent PL codes (if applicable) and DPL codes corresponding to the display Tables rPL.XXX or tPL.XXX where XXX is in the range 001 to 126.

  • Page 50: Special Programming Mode (Spm)

    Radio Programming Information GP68 Portable Radios Service Manual Special Programming Mode (SPM) Special Programming Modes USER DEALER SEL CAL DECODE SERIAL Display Shows: Description: Edit Channel Scan List Erase Single Channel Edit Phone Access Code Edit Phone De-access Code †...

  • Page 51: Erase A Single Channel From Memory

    GP68 Portable Radios Service Manual Radio Programming Information Special Programming Mode (SPM) Erase a Single Channel from Memory A flashing channel number indicates that the channel is excluded from the scan list. A channel number that lights Rotate the Channel Selector Knob to select the continuously indicates the channel is included in the scan menu item.

  • Page 52: Edit Selective Call Ids

    Radio Programming Information GP68 Portable Radios Service Manual Special Programming Mode (SPM) pause between the digits of the ID by first pressing digits. To change the selected ID, use to erase the immediately followed by . However, any pauses entered unwanted digits, and then enter the new digits.

  • Page 53: Troubleshooting

    Section 5 Troubleshooting Overview This section contains five troubleshooting tables for the following components: ¥ Receiver • Transmitter • Synthesizer • Microprocessor • Voltage Controlled Oscillator (VCO) • LCD Troubleshooting Charts Refer to following pages. Troubleshooting and Repair Comments While troubleshooting, if you determine that the reference oscillator crystal (Y201) is defective, the entire Radio Frequency (RF) board must be replaced.
  • Page 54 Troubleshooting GP68 Portable Radios Service Manual Troubleshooting Charts Start Very low or no 12 Check IFIC dB SINAD Are VDC of U51 (see Is 2nd LO on pins 7,9, and below) freq? 10 of IFIC Noise at spkr Noise at pin 23...
  • Page 55 GP68 Portable Radios Service Manual Troubleshooting Troubleshooting Charts Start Power Check U303, Q152 +5vTX and TXB+ & U151 1. Check Pin Diodes current 2. Check Harmonic Filter Check VCTL Voltages in High or Low? Power Control Inspect/Repair Circuit TX Output...

  • Page 56: Troubleshooting Flow Chart For Synthesizer

    Troubleshooting GP68 Portable Radios Service Manual Troubleshooting Charts Start Visual Correct check of the Problem Board OK? Check 5V Regulator Is U201 Pin 32 AT = 13 VDC +5V at U201 Pin’s Is 16.8MHz Check 3,12,19,22 Signal at Y201,C205,C206,C211 & 23?
  • Page 57 GP68 Portable Radios Service Manual Troubleshooting Troubleshooting Charts START APPLY POWER TO RADIO AND TURN ON NO/DONÕT ARE ALERT TONES WAS GOOD OR BAD POWER-ON KNOW ENABLED IN SPM BEEP PRESENT USE SPM TO ENABLE TONES INVOKE FACTORY WAS GOOD POWER-ON BEEP...
  • Page 58 Troubleshooting GP68 Portable Radios Service Manual Troubleshooting Charts TX VCO RX VCO Power OK but no Low or no power Low or no Power Modulation at Pin 3 of Mixer at Input to PA Visual check Correct VisualCheck =151 mVrms...
  • Page 59 GP68 Portable Radios Service Manual Troubleshooting Troubleshooting Charts START CHANGE APPLY POWER TO RADIO AND LCD BOARD TURN ON J801 COMPLETE CONNECTION DISPLAY J801 CHANGE KEYPAD CLOCK R814, R815, J801 CONNECTION WORKING? WORKING? C801 WORKING? CONNECTION COMPONENTS CHANGE BACK LIGHT...
  • Page 60 Troubleshooting GP68 Portable Radios Service Manual 6881086C09-O March, 1997...
  • Page 61 GP68 Portable Radios Service Manual - Part II 6881086C09-O March, 1997...
  • Page 62 *6881086C09* Motorola 8000 W. Sunrise Blvd. 6881086C09-O Ft. Lauderdale, FL 33322...
  • Page 63 Accordingly, any copyrighted Motor- ola 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...

  • Page 64: Circuit Board Details For Pmld4036A/Pmld4037A Vhf Rf Board, 20/25/12.5 Khz

    VIEWED FROM SIDE 1 VIEWED FROM SIDE 2 J401 L114 C165 L113 C166 C161 C144 C169 C141 L112 C168 CR101 R178 U252 C136 R106 R107 C143 L115 C145 C112 L111 E101 L109 R104 L103 L108 C117 CR102 R108 C110 C114 L105 C133 C159...

  • Page 65: Parts List For Pmld4036A/Pmld4037A Vhf Rf Board, 20/25/12.5 Khz

    Parts List REFERENCE MOTOROLA REFERENCE MOTOROLA REFERENCE MOTOROLA REFERENCE MOTOROLA REFERENCE MOTOROLA PMLD4036A, VHF RF Board, 20/25 KHz DESCRIPTION DESCRIPTION DESCRIPTION DESCRIPTION DESCRIPTION SYMBOL PART NO SYMBOL PART NO SYMBOL PART NO SYMBOL PART NO SYMBOL PART NO PMLD4037A, VHF RF Board, 12.5 KHz...

  • Page 66: Schematic Diagram For Pmld4036A/Pmld4037A Vhf Rf Board, 20/25/12.5 Khz

    +5VRX RECEIVER 1ST IF STAGE +5VRX 2000 CF51 CF52 560nH 10nF 390pF 0.1uF 1.5nF 0.1uF RECEIVER BACK END RECEIVER FRONT END RECEIVER SECTION 20pF 7500 0.1uF 2.5VDC 2.5VDC 4.6VDC 3.8VDC ( FM DEMODULATION ) 4.3VDC 4.3VDC 1800 CR51 56nH 62pF 180pF 30.51nH 30.51nH...

  • Page 67: Circuit Board Details For Pmle4023B/Pmle4024B Uhf Rf Board, 20/25/12.5 Khz

    VIEWED FROM SIDE 1 J401 VIEWED FORM SIDE 2 C141 C166 L113 C144 L112 CR101 C148 R178 L115 L111 U252 R106 C170 C112 R172 L110 C139 E101 C143 R123 L109 R104 C117 L103 C133 CR151 C118 R108 C110 C114 L108 L105 C132 C104...

  • Page 68: Parts List For Pmle4023B/Pmle4024B Uhf Rf Board, 20/25/12.5 Khz

    Parts List REFERENCE MOTOROLA REFERENCE MOTOROLA REFERENCE MOTOROLA REFERENCE MOTOROLA REFERENCE MOTOROLA DESCRIPTION DESCRIPTION DESCRIPTION DESCRIPTION DESCRIPTION PMLE4023B, UHF RF Board, 20/25 kHz SYMBOL PART NO. SYMBOL PART NO. SYMBOL PART NO. SYMBOL PART NO. SYMBOL PART NO. PMLE4024B, UHF RF Board, 12.5 kHz...

  • Page 69: Schematic Diagram For Pmle4023B/Pmle4024B Uhf Rf Board, 20/25/12.5 Khz

    +5VRX +5VRX CF51 CF52 2000 .1uF 10nF 150pF 750nH 75pF 0.1uF 1.5nF 3.3pF 7500 RECEIVER SECTION 0.1uF 2700 1600 MIXER CR51 13pF 1.8pF 9.1pF 12pF 1.5pF 1.3pF 10pF MMBD353 73.35MHz 51pF 10nF GND3 30pF 150nH 680pF 36pF 6 PPC_AMP_IN GND1 GND2 MMBR941L 680nH...

  • Page 70: Circuit Board Details For Pmln4059A & Pmcd4001A Controller Board, Vhf 12.5/20/25 Khz

    VIEWED FROM SIDE 1 VIEWED FROM SIDE 2 R433 C168 R176 R175 Q404 R180 C481 C169 R168 R166 U152 R178 R481 R172 U150 R167 R169 R480 SW401 C416 SW480 R482 R170 C482 C470 R804 C424 C452 U452 R467 C495 C412 L402 R809 U456...

  • Page 71: Parts List For Pmln4059A & Pmcd4001A Controller Board, Vhf 12.5/20/25 Khz

    Parts List REFERENCE REFERENCE REFERENCE MOTOROLA MOTOROLA MOTOROLA PMLN4059A, Controller Board, VHF 12.5/20/25 KHz DESCRIPTION DESCRIPTION DESCRIPTION SYMBOL SYMBOL SYMBOL PART NO. PART NO. PART NO. REFERENCE MOTOROLA C462 2113741F17 R460 0662057A73 DESCRIPTION SYMBOL PART NO. C464 ------ Not Placed...

  • Page 72: Schematic Diagram For Pmln4059A & Pmcd4001A Controller Board, Vhf 12.5/20/25Khz

    C457 C458 TP405 240pF .039uF SWB+ C305 C459 .018uF 150pF R458 SWB+ +5V_A 5600 CR403 R459 U302 SRCLK U456 VR406 VR403 R460 C410 VOUT 5V_TAP SENSE VOUT SRDATA C304 FEEDBACK GND CONTROL RESET C306 4.7uF R301 C413 CR107 SHUTDOWN BYPASS 2.2uF ERROR 100K...

  • Page 73: Circuit Board Details For Pmce4000A & Pmce4002A Controller Board, Uhf 12.5/20/25 Khz

    VIEWED FROM SIDE 1 VIEWED FROM SIDE 2 R433 C168 R176 R175 Q404 C169 R180 C481 R168 R166 R481 U152 R178 U150 R172 R167 R169 R480 SW401 SW480 R482 R170 C416 C482 C470 R804 C424 C452 U452 R467 C412 C495 L402 J405 R809...

  • Page 74: Parts List For Pmce4000A & Pmce4002A Controller Board, Uhf 12.5/20/25 Khz

    Parts List MOTOROLA MOTOROLA MOTOROLA REFERENCE REFERENCE REFERENCE PMCE4000A, Controller Board, UHF 12.5/20/25 kHz DESCRIPTION DESCRIPTION DESCRIPTION PART NO. PART NO. PART NO. SYMBOL SYMBOL SYMBOL C462 2113740F55 150pF Q404 4805128M67 R459 0662057A90 MOTOROLA C464 2113740F55 150pF R460 0662057A73 REFERENCE DESCRIPTION PART NO.

  • Page 75: Schematic Diagram For Pmce4000A & Pmce4002A Controller Board, Uhf 12.5/20/25Khz

    C458 TP405 .039uF SWB+ C457 C305 C459 240pF .018uF 150pF R458 SWB+ +5V_A 5600 CR403 SRCLK U302 U456 VR406 VR403 R459 R460 C410 VOUT 150pF 5V_TAP SENSE VOUT SRDATA C304 FEEDBACK GND CONTROL RESET C306 ERROR 4.7uF C413 CR107 BYPASS R301 U452-1 2.2uF...

  • Page 76: Circuit Board Details For Pmln4061 Display Board

    VIEWED FROM SIDE 1 R816 R801 R802 R813 Q801 U801 R812 J801 R814 C801 R815 DS803 DS802 DS801 ∗ MAEPF-25984-O Circuit Board Details for PMLN4061 Display Board March, 1997 6881086C09-O...

  • Page 77: Parts List For Pmln4061 Display

    Parts List PMLN4061A, Display Board 20/25 KHz REFERENCE MOTOROLA DESCRIPTION SYMBOL PART NO. RESISTOR, Fixed: ohm+-5% .0625W unless stated R803 0662057A09 R802 0662057A25 R801 0662057A41 R816 0662057A49 R817 0662057A49 R811 0662057A81 R812 0662057A81 R815 0662057A89 R814 0662057B02 150k R813 0662057B47...

  • Page 78: Schematic Diagram For Pmln4061 Display Board

    J802 SUTERA_LCD R816 R811 R817 1000 1000 SEG16 SEG1 R812 R802 SEG17 COMB SEG18 VLCM SEG19 COMA SEG20 VLCL SEG21 U801 R813 DS802 R802 VDD2 BLANK GREEN LCD_DRIVER_56 SEG22 VDD1 ∗ SEG23 SEG24 DATA SEG25 LOAD SEG26 OSCR DS803 DS801 GREEN GREEN SEG27...

  • Page 79: Exploded View Parts List For Gp68 Radio

    Pad, No Keys PMLN4059A GP68 Contr Board PMLN4061A GP68 Display Board 4304711J01 Spacer, Jack 0304726J01 Screw, Torx T-6 PMLD4036A GP68 VHF RF Board 20/25 KHz 8404721J02 Board, Flexible Interconnect 7504724J01 Pad, Heat Conductive 3204693J01 Gasket, Main 3204701J01 Gasket, B+ Contact 2704692J01...

  • Page 80: Gp68 Exploded Mechanical View

    Exploded View from manual number 6804370J41-B, Page 17 GP68 Exploded Mechanical View March, 1997 6881086C09-O...

  • Page 81: Battery Charger Standard Rate (10 Hour) Exploded View And Parts List

    LABEL, charger, 240 V 6180996Z01 LIGHT PIPE Charger Exploded View from manual 6804370J41-B, Page 18 Charger Stand NOTE: The GP68 Radio requires the above Charger Insert (PMLN4069) during battery charging operation. Battery Charger Standard Rate (10 Hour) Exploded View and Parts List 6881086C09-O...

  • Page 82: Battery Charger Standard Rate (10 Hour) Circuit Board, Schematic Diagram And Parts List

    Parts List GP68 10 Hour (Standard) Battery Charger, Electrical PL-941036-O REFERENCE MOTOROLA DESCRIPTION SYMBOL PART NO. resistor, fixed: R201 0660076A23 R202 0660076A57 2.2k R203 thru 205 0660076A27 R206 0660076A89 R207 0660076B01 100k R208, 209 0660076A22 R210 0660076A89 R211 0660076B01 100k...
  • Page 83 6881086C09-O March, 1997...
  • Page 84 Thank you for your cooperation. In reference to Manual Number: 6881086C09-O GP68 Portable Radio 1. Please check all the appropriate boxes: Disassembly...
  • Page 85 NO POSTAGE NECESSARY IF MAILED IN THE UNITED STATES BUSINESS REPLY MAIL FIRST CLASS MAIL PERMIT NO 9040 FT. LAUDERDALE, FL POSTAGE WILL BE PAID BY ADDRESSEE Attention: Media and Communication 8000 W. Sunrise Boulevard Ft. Lauderdale, FL 33322 FOLD FOLD (Continued) Please specify the page number along with any corrections or recommendations for improvement.

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