Motorola GP series Service Manual

UHF2 PCB 8485677Z03 (GP1280) Parts List 4-37
* Motorola Depot Servicing only
Reference designators with an asterisk indicate
components which are not fieldreplaceable
because they need to be calibrated with
specialized factory equipment after installation.
Radios in which these parts have been replaced in
the field will be off frequency at temperature
extremes.
R492 0662057M01 0
R498 0662057M98 10K
R499 0662057M98 10K
R501 0662057M70 680
R502 0662057M56 180
R505 0662057M98 10K
R506 0662057N15 47K
R507 0662057M01 0
R625 NOTPLACED
R626 NOTPLACED
R627 NOTPLACED
R701 0662057N05 18K
R702 0662057N05 18K
R703 0662057M74 1K
R704 0662057N13 39K
R705 0662057N13 39K
R706 0662057N17 56K
R707 0662057M91 5.1K
R708 0662057N41 560K
R709 0662057N47 1M
R710 0662057N39 470K
R716 0662057N01 12K
R717 0662057M82 2.2K
RT300 0680590Z01 THERMISTOR_33K
RT301 NOTPLACED
RT400 0680590Z01 THERMISTOR_33K
S501 4080710Z02 Frequency Switch
S502 1880619Z02 Volume / On-off Switch
SH100 2680507Z01 Harmonic Filter Shield
SH101 2680510Z01 PA Shield
SH201 2680511Z01 Synthesizer Top Shield
SH202 2680511Z01 Synthesizer Bottom Shield
SH241 2680513Z01 VCO Resonators Shield
SH242 2680514Z01 VCO Buffer IC Shield
SH301 2680554Z01 Receiver Front-End Shield
SH302 2680555Z01 Receiver Back-End Bottom
Shield
SH303 2680509Z01 Mixer Shield
Circuit
Ref.
Motorola
Part No.
Description
SH304 2680624Z01 Mixer Diode Shield
SH321 2680508Z01 LVZIF 2nd LO Shield
SH322 2680514Z01 LVZIF Shield
SH323 2680553Z01 Crystal Filter Shield
SH400 2680505Z01 Controller Memory Shield
SH401 2680506Z01 Controller On-off Shield
SH402 2680515Z01 Microprocessor Shield
SH403 2680516Z01 Asfic_Cmp, Audio PA Shield
SH701 2680677Z01 Voice Storage Shield
T301 2580541Z02 Balun Transformer
T302 2580541Z02 Balun Transformer
U101 5185130C65 LDMOS PA Driver
U102 5185765B26 PCIC
U201 5185963A27 LVFRACN Synthesizer IC
U210 5102463J61 Inverter
U211 5102463J61 Inverter
U241 5105750U54 VCO Buffer IC
U247 5105739X05 5V Regulator
U248 5102463J58 3.3V Regulator
U301 5109632D83 LVZIF IC
U400 5102463J40 3.3V Regulator
U404 5185130C53 ASFIC_CMP IC
U405 5102463J36 Static RAM_32K X 8
* U406 5102463J60 Flash ROM_512K X 8
* U407 5102495J05 EEPROM_16K X 8
U409 5102226J56 Micro Processor
U410 5102463J57 3.3V Regulator
U420 5102463J44 Audio PA
U601 NOTPLACED
U700 5185770M01 IC VOICE STORAGE 2 MIN
U710 5102463J52 QUAD ANALOG SWITCH IC
U720 5113818A01 SING Supply IC
VR300 NOTPLACED
VR432 4805656W08 Zener Diode
VR433 4805656W08 Zener Diode
VR434 4802245J73 Zener Diode 6.8V
VR439 4880140L17 Zener Diode
VR440 4802245J73 Zener Diode 6.8V
Circuit
Ref.
Motorola
Part No.
Description
VR441 4802245J73 Zener Diode 6.8V
VR442 4802245J73 Zener Diode 6.8V
VR443 4802245J73 Zener Diode 6.8V
VR444 4802245J73 Zener Diode 6.8V
VR445 4802245J74 Zener Diode 10V
VR446 4802245J74 Zener Diode 10V
VR447 4802245J74 Zener Diode 10V
VR448 4802245J74 Zener Diode 10V
VR449 4802245J74 Zener Diode 10V
VR450 4802245J75 Zener Diode 12V
VR460 4802245J73 Zener Diode 6.8V
VR501 4813830A18 DIODE 6.8V
VR506 4802245J73 Zener Diode 6.8V
Circuit
Ref.
Motorola
Part No.
Description

Motorola GP series Specifications

General

Operating Temperature	-30°C to +60°C
Frequency Range	136-174 MHz
Number of Channels	16
Channel Spacing	12.5 kHz / 25 kHz
Battery Life	8 hours (with standard battery)
Operating Voltage	7.5V DC
Ingress Protection	IP54
MIL-STD	810 C, D, E, F