Motorola GP328 Detailed Service Manual

Circuit Board/Schematic Diagrams and Parts List 6D-35
* Motorola Depot Servicing only
U101 5185130C65 LDMOS Driver IC
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
U406 *5102463J59 Flash ROM 128K x 8
U407 *5102463J64 EEPROM 16K x 8
U409 5102226J56 Microprocessor
U410 5102463J57 3.3V Regulator (not used in
GP328)
U420 5102463J44 Audio Amplifier
VR300 NOT PLACED
VR432 4805656W08 Quad Zener Diode
VR433 4805656W08 Quad Zener Diode
VR434 4802245J73 Zener Diode - 6.8V
VR439 4880140L17 Zener Diode - 12V
VR440 4802245J73 Zener Diode - 6.8V
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 Zener Diode - 6.8V
VR506 4802245J73 Zener Diode - 6.8V
Y201 NOT PLACED
8485726Z04 UHF Band 3 Main PCB
Circuit
Ref
Motorola
Part No.
Description

Motorola GP328 Specifications

General

Channel Capacity	16 channels
Operating Temperature	-30°C to +60°C
Sealing	IP54
Frequency Range	136-174 MHz (VHF), 403-470 MHz (UHF)
Power Output	1-5W (VHF), 1-4W (UHF)
Dimensions	137 x 57.5 x 37.5 mm
Power Supply	7.5V
Battery Life	8 hours (High Power), 11 hours (Low Power) with standard NiMH battery
Weight	420g (with standard battery)