Motorola GP Series Service Manual page 259

UHF PCB 8486458Z03 Parts List
Circuit Motorola
Description
Ref Part No.
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 (not placed
non-display radios)
U420 5102463J44 Audio PA
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 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
Y300 4802245J84 Xtal Oscillator 44.395MHz
Y301 9186145B02 455kHz Ceramic Discriminator
1485777Z01 Insulator (KAPTON)
8486458Z03 UHF B1 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.
Radios in which these parts have been replaced in
the field will be off frequency at temperature
extremes.
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