3-8
UHF2 PCB 8485641Z02 Schematics
L340
390nH
HSMP3820
1
2
3
CR308
R317
1K
100pF
C395
C331
100pF
1K
R347
R5
C311
100K
R307
R306
100K
CR304
C306
CR305
C312
7.5pF
12nH
L305
C313
11pF
L306
11.03nH
11.03nH
L307
4.3pF
C316
NU
NU
R305
470
R304
12K
C321
100pF
C309
100pF
R303
1.5K
Q301
1
3
2
C307
0.1uF
0.1uF
C314
180nH
L304
C315
100pF
C310
0.1uF
R328
2.7
L303
22nH
R340
8.2K
11.03nH
L302
C308
100pF
100K
R301
12pF
C302
C305
8.2pF
CR301
CR302
4.3pF
C303
11pF
C304
R302
L301
100K
11.03nH
1
CR303
2
3
C301
8.2pF
RX_IN
1
SH304
SHIELD
1
SHIELD
SH302
1
SHIELD
SH301
SH303
SHIELD
1
RXFE Top Shield
RXFE Bottom Shield
Mixer Shield
RX Mixer Diode Shield
.01uF
C380
100K
R342
R5
DACRx
4.7pF
C381
R329
0
C318
11pF
C317
7.5pF
T301
4
6
3
1
2
XFMR
TP302
T302
XFMR
4
6
3
1
2
C320
C319
7.5pF
3.6pF
16.28nH
L309
R348
3.6K
R336
C333
R5
NU
NU
33K
R327
R316
91K
Q315
1
3
2
18K
R318
R319
150
C396
NU
R300
2.2K
0.47pF
C397
1
33.0K
RT300
2
R334
Q316
1
3
2
VR300
R326
NU
NU
NU
NU
R325
6.8K
R338
R335
RT301
2
1
C391
NU
NU
NU
NU
R5
C370
100pF
R330
RSSI
RX_INJ
NU
R331
C372
Q310
1
3
2
C371
100pF
C386
NU
NU
NU
NU
0
R349
100pF
C374
C378
C373
NU
NU
C375
VCOBUF
100pF
R332
L321
0
R339
R5
NU
NU
R333
NU
R309
18
82pF
C322
L310
150nH
270
R308
270
R310
2
3
4
1
CR306
IF
1.850V@-50dBm
0.508V
4.398V
Rx1 = [email protected] rf signal
Rx2 = [email protected] rf signal
probed using high impedence probe
UHF2 (450-527 MHz) Receiver Front End
Summary of Contents for GP series
Page 1: ...Professional Portable Radio Detailed Service Manual 6866558D03 P ...
Page 2: ...ii ...
Page 5: ...Professional Radio GP Series Service Maintainability Issue July 2007 ...
Page 14: ...x THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 16: ...xii THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 26: ...2 6 MAINTENANCE THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 32: ...4 2 Error Codes Notes ...
Page 33: ...Professional Radio GP Series Keypad and Flex Service Information Issue July 2007 ...
Page 36: ...iv THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 40: ...1 4 THEORY OF OPERATION THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 48: ...2 8 PCB Schematic Diagrams and Parts List Flexes THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 52: ...2 12 PCB Schematic Diagrams and Parts List Keypad THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 56: ...2 16 PCB Schematic Diagrams and Parts List Keypad THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 62: ...iv THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 72: ...3 4 CONTROLLER SCHEMATICS THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 92: ...3 24 Controller Set 3 PCB 8486458Z03 UHF 8486686Z02 UHF2 THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 98: ...3 30 Controller Set 4 PCB 8416256H02 UHF Controller Audio Power Amplifier Schematic Diagram ...
Page 101: ...Controller Set 5 PCB 8486743Z02 UHF 3 33 Controller Micro Processor Schematic Diagram ...
Page 102: ...3 34 Controller Set 5 PCB 8486743Z02 UHF Controller Interface Schematic Diagram ...
Page 103: ...Controller Set 5 PCB 8486743Z02 UHF 3 35 Controller Audio Power Amplifier Schematic Diagram ...
Page 104: ...3 36 Controller Set 5 PCB 8486743Z02 UHF THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 134: ...1 22 THEORY OF OPERATION THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 150: ...3 6 UHF PCB SCHEMATICS PARTS LISTS THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 160: ...3 16 UHF PCB 8480450Z03 Schematics THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 178: ...3 34 UHF PCB 8480587Z03 Schematics THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 182: ...3 38 UHF PCB 8480587Z03 Parts List THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 190: ...3 46 UHF PCB 8480587Z05 Parts List THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 200: ...3 56 UHF PCB 8480450Z13 14 Schematics THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 214: ...3 70 UHF PCB 8486458Z03 Schematics THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 228: ...3 84 UHF PCB 8415234H01 Schematics THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 244: ...3 100 UHF PCB 8415234H02 Schematics THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 250: ...3 106 UHF PCB 8415234H02 Parts List THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 270: ...3 126 UHF PCB 8415234H05 EPP Parts List THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 280: ...3 136 UHF PCB 8415234H08 Schematics THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 290: ...3 146 UHF PCB 8415234H08 Parts List THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 293: ...UHF PCB 8486743Z02 Schematics 3 149 UHF 403 470 MHz Receiver Front End Schematic Diagram ...
Page 294: ...3 150 UHF PCB 8486743Z02 Schematics UHF 403 470 MHz Receiver Back End Schematic Diagram ...
Page 295: ...UHF PCB 8486743Z02 Schematics 3 151 UHF 403 470 MHz Synthesizer Schematic Diagram ...
Page 297: ...UHF PCB 8486743Z02 Schematics 3 153 UHF 403 470 MHz Transmitter Schematic Diagram ...
Page 298: ...3 154 UHF PCB 8486743Z02 Schematics THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 316: ...3 172 UHF PCB 8415234H05 450 470 MHz Narrow Band THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 325: ...Professional Radio GP Series UHF2 450 527MHz Service Information Issue July 2007 ...
Page 342: ...1 14 THEORY OF OPERATION THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 352: ...2 10 TROUBLESHOOTING CHARTS THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 356: ...3 4 UHF2 PCB SCHEMATICS PARTS LISTS THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 384: ...3 32 UHF2 PCB 8485677Z02 GP1280 Schematics THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 386: ...3 34 Voice Storage Parts List GP1280 THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 394: ...3 42 UHF2 PCB 8485677Z03 GP1280 Parts List THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 404: ...3 52 UHF2 PCB 8486686Z02 Schematics THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 441: ...Professional Radio GP Series 800 MHz 806 870MHz Service Information Issue July 2007 ...
Page 444: ...iv THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 456: ...1 12 THEORY OF OPERATION THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 464: ...3 2 800MHz PCB schematics Parts list THIS PAGE INTENTIONALLY LEFT BLANK ...