Motorola GP Series Service Manual page 70

4-26
Circuit Motorola
Description
Ref Part No.
SH402 2680515Z01 Microprocessor shield
SH403 2680516Z01 Asfic_Cmp/Audio PA shield
T301 2580541Z02 Balun transformer
T302 2580541Z02 Balun transformer
U101 5185130C65 IC VHF/UHF/800 MHZ LDMOS
DRIVER
U102 5185765B28 PCIC
U201 5185963A27 LVFRACN Synthesizer IC
U210 5102463J61 Inverter
U211 5102463J61 Inverter
U241 5105750U54 VCO BUFFER IC
U247 5105739X05 SOT 5V Regulator
U248 5102463J58 3.3V Regulator
U301 5109632D83 LVZIF IC
U400 5102463J40 3.3V Regulator
U404 5185963A53 ASFIC_CMP IC
U405 5102463J36 Static Ram 31Kx8
U406 5102463J60 512Kx8 Flash Memory
U407 5102463J64 16K X 8 EEPROM
U409 5102226J56 Microprocessor
U410 5102463J57 3.3V Regulator (not used in
GP640 non-display)
U420 5102463J44 Audio PA
VR300 NOT PLACED
VR432 4805656W08 5.6V Zener
VR433 4805656W08 5.6V Zener
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 4802245J53 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 6.8V Zener
VR506 4802245J73 ZENER DIODE-6.8V
Y201 NOT PLACED
8485641Z06 UHF B2 main PC board
* 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.
Note: Tolerance
Capacitor - 5% unless specified otherwise
Inductor - 10% unless specified otherwise
Resistor - 5% unless specified otherwise
UHF2 PCB8485641Z06 Parts List