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4-54
VHF PCB 8486062B17
* 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.
U404
5185963A53
ASFIC_CMP
U405
5102463J36
Static_RAM_32KX8
* U406
5102463J60
512K X 8 Flash Memory
* U407
5102463J64
16k X 8 EEPROM
U409
5102226J56
Microprocessor IC
U410
5102463J57
3.3V Regulator
only GP360, GP380, GP680
U420
5102463J44
Audio PA
VR3501
4880140L17
Zener diode-12V
VR432
4805656W08
5.6V Zener diode
VR433
4805656W08
5.6V Zener diode
VR434
4802245J73
ZENER DIODE-6.8V
VR439
4880140L17
Zener diode-12V
VR447
4802245J74
ZENER DIODE-10V
VR448
4802245J74
ZENER DIODE-10V
VR449
4802245J74
ZENER DIODE-10V
VR450
4802245J74
ZENER DIODE-10V
VR460
4802245J73
ZENER DIODE-6.8V
VR501
4802245J73
ZENER DIODE-6.8V
VR506
4802245J73
ZENER DIODE-6.8V
Y3200
9186153B01
Crystal Filter
Y3761
4805875Z04
16.8MHz Xtal oscillator (SMD)
5480678Z01
PCB Bar Code Label
8486062B16
VHF main PC Board
8486062B17
VHF main PC Board
Circuit
Ref
Motorola
Part No
Description
Summary of Contents for GP1280 Series
Page 1: ...Professional Radio GP Series VHF 136 174MHz Service Information Issue November 2004 ...
Page 24: ...2 14 THEORY OF OPERATION ...
Page 34: ...3 10 TROUBLESHOOTING CHARTS ...
Page 38: ...4 4 VHF PCB SCHEMATICS PARTS LISTS ...
Page 50: ...4 16 VHF PCB 8486062B12 Parts List Intentionally Left Blank ...
Page 54: ...4 20 VHF PCB 8486101B09 Schematics GP1280 Intentionally Left Blank ...
Page 64: ...4 30 VHF PCB 8486062B14 Parts List Intentionally Left Blank ...
Page 108: ...4 74 VHF PCB 8486473Z04 Radio Parts List Intentionally Left Blank ...