2-2
TROUBLESHOOTING CHARTS
1.2
Models with PCB 8486458Z03
MCU Check
Power Up
Alert Tone
OK?
Speaker
OK?
U409 EXTAL=
7.3728 MHz?
U201 Pin 19
16.8 MHz
5V at U247?
3.3V at U248?
U409 Reset Pin
94 High?
MCU is OK
Not able to pro-
gram RF Board
ICs
Before replacing
MCU, check SPI
clock, SPI data,
and RF IC select
Replace
Speaker
Read Radio
OK?
Check
Setup
Reprogram the
correct data.
See FGU
Troubleshooting
7.5V at
Pin 3/5 U247?
4/3.3V at Pin 1
U248
Check
Q400
Replace
U247/U248
Check any short
to SWB+,
Vdda or Vddd
Press PTT. Red
LED does not
light up
PTT U409
Pin 53
low?
Press PTT
Q502-2
High?
Check
PB504
Check
Q502-2
voltage
LED
Q502,R501
OK?
Replace
Faulty
Component
Check
Accessories
J403
OPT_SEL_1 &
OPT_SEL_2
Pin 8 & 9
low?
Radio could
not PTT
externally
U409
Pin 52, 6
low?
See FGU
Troubleshoot-
ing chart
LED should
light up
Check
MCU
PTT
NO
YES
YES
No
No
NO
YES
YES
NO
YES
YES
NO
NO
YES
YES
NO
NO
YES
NO
YES
NO
YES
YES
NO
NO
YES
EXT
SPKR
EXT
PTT
INT
AUDIO
J403 Pin 9 low?
Pin 8 high?
ASFIC U404
Pin 14 & 15
high?
Check
Accessories
Check
U404
Check
U420 Audio PA
NO
NO
YES
YES
J403 Audio
at Pin 2 &
Pin 3
Check Spk. Flex
Connection
Audio at
AudioPA
(U420)
input
(U447)
Audio from Pin 41
ASFIC, U404?
Check
ASFIC U404
Check
Audio PA
(U420)
Check
U301
IF IC
Audio at
Pin 2
U404?
NO
NO
NO
YES
YES
NO
YES
Содержание GP series
Страница 1: ...Professional Portable Radio Detailed Service Manual 6866558D03 P ...
Страница 2: ...ii ...
Страница 5: ...Professional Radio GP Series Service Maintainability Issue July 2007 ...
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Страница 26: ...2 6 MAINTENANCE THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 32: ...4 2 Error Codes Notes ...
Страница 33: ...Professional Radio GP Series Keypad and Flex Service Information Issue July 2007 ...
Страница 36: ...iv THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 40: ...1 4 THEORY OF OPERATION THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 48: ...2 8 PCB Schematic Diagrams and Parts List Flexes THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 52: ...2 12 PCB Schematic Diagrams and Parts List Keypad THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 56: ...2 16 PCB Schematic Diagrams and Parts List Keypad THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 59: ...Professional Radio GP Series Power Distribution and Controller Service Information Issue July 2007 ...
Страница 62: ...iv THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 72: ...3 4 CONTROLLER SCHEMATICS THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 92: ...3 24 Controller Set 3 PCB 8486458Z03 UHF 8486686Z02 UHF2 THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 98: ...3 30 Controller Set 4 PCB 8416256H02 UHF Controller Audio Power Amplifier Schematic Diagram ...
Страница 100: ...3 32 Controller Set 5 PCB 8486743Z02 UHF Intentionally left blank Controller ASFIC ON_OFF Schematic Diagram ...
Страница 101: ...Controller Set 5 PCB 8486743Z02 UHF 3 33 Controller Micro Processor Schematic Diagram ...
Страница 102: ...3 34 Controller Set 5 PCB 8486743Z02 UHF Controller Interface Schematic Diagram ...
Страница 103: ...Controller Set 5 PCB 8486743Z02 UHF 3 35 Controller Audio Power Amplifier Schematic Diagram ...
Страница 104: ...3 36 Controller Set 5 PCB 8486743Z02 UHF THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 108: ...3 40 Controller Schematics Set 6 PCB 8415234H05 Narrow Band THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 109: ...Professional Radio GP Series UHF 403 470MHz Narrow Band 450 470MHz Service Information Issue July 2007 ...
Страница 134: ...1 22 THEORY OF OPERATION THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 150: ...3 6 UHF PCB SCHEMATICS PARTS LISTS THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 160: ...3 16 UHF PCB 8480450Z03 Schematics THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 178: ...3 34 UHF PCB 8480587Z03 Schematics THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 182: ...3 38 UHF PCB 8480587Z03 Parts List THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 190: ...3 46 UHF PCB 8480587Z05 Parts List THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 200: ...3 56 UHF PCB 8480450Z13 14 Schematics THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 214: ...3 70 UHF PCB 8486458Z03 Schematics THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 228: ...3 84 UHF PCB 8415234H01 Schematics THIS PAGE INTENTIONALLY LEFT BLANK ...
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Страница 250: ...3 106 UHF PCB 8415234H02 Parts List THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 260: ...3 116 Circuit Board Schematic Diagrams and Parts List PCB No 8415234H05 THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 270: ...3 126 UHF PCB 8415234H05 EPP Parts List THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 280: ...3 136 UHF PCB 8415234H08 Schematics THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 290: ...3 146 UHF PCB 8415234H08 Parts List THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 293: ...UHF PCB 8486743Z02 Schematics 3 149 UHF 403 470 MHz Receiver Front End Schematic Diagram ...
Страница 294: ...3 150 UHF PCB 8486743Z02 Schematics UHF 403 470 MHz Receiver Back End Schematic Diagram ...
Страница 295: ...UHF PCB 8486743Z02 Schematics 3 151 UHF 403 470 MHz Synthesizer Schematic Diagram ...
Страница 296: ...3 152 UHF PCB 8486743Z02 Schematics UHF 403 470 MHz Voltage Controlled Oscillator Schematic Diagram ...
Страница 297: ...UHF PCB 8486743Z02 Schematics 3 153 UHF 403 470 MHz Transmitter Schematic Diagram ...
Страница 298: ...3 154 UHF PCB 8486743Z02 Schematics THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 316: ...3 172 UHF PCB 8415234H05 450 470 MHz Narrow Band THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 325: ...Professional Radio GP Series UHF2 450 527MHz Service Information Issue July 2007 ...
Страница 342: ...1 14 THEORY OF OPERATION THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 352: ...2 10 TROUBLESHOOTING CHARTS THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 356: ...3 4 UHF2 PCB SCHEMATICS PARTS LISTS THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 384: ...3 32 UHF2 PCB 8485677Z02 GP1280 Schematics THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 386: ...3 34 Voice Storage Parts List GP1280 THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 394: ...3 42 UHF2 PCB 8485677Z03 GP1280 Parts List THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 404: ...3 52 UHF2 PCB 8486686Z02 Schematics THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 441: ...Professional Radio GP Series 800 MHz 806 870MHz Service Information Issue July 2007 ...
Страница 444: ...iv THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 456: ...1 12 THEORY OF OPERATION THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 464: ...3 2 800MHz PCB schematics Parts list THIS PAGE INTENTIONALLY LEFT BLANK ...