3-10
UHF2 PCB and Schematic Diagrams
1
2
3
4
J101
J102
2
C
8
C
4
S501
4
5
3
2
S502
2
3
4
Y201
C241
C242
C243
C244
C245
C246 C250
C252
C254
C255
C281
C295
C371
C372
C373
C378
CR241
CR242
CR243
CR251
L241
L242
L251
L281
Q310
R1
10
R
111
R1
12
R241
R242
R244
R245
R251
R252
R254
R330 R331
R332
R349
SH242
11
1
20
10
U241
C525
C526
C527
C528
C529
C530
C531
C532
C533
C534
C535
C536
C537
C538
C539
C540
C541
C542
C543
C544
C545
C546
C547
C548
C549
C550
C551
C552
C553
C555
R509
R510
R51
1
C215
C277
C278
C279
C522
L505
R205
U248
VR441
VR506
3
2
1
B501
C105
C123
C126
C128
C130
C132
C133
C134
C135
C138
C150
C151
C152
C170
C172
C173
C174
CR105
E101
L1
12
R102
R109
R130
R131
R132
R133
R136
R172
R329
1
17
9
25
U102
VR439
C201
C202
C204
C206
C207
C208
C218
C219
C223
C224
C231
C232
C234
C258
C259
C263
C264
C265
C293
C296
C298
CR203
L261
R201
R202
R204
R231
R232
R233
R281
SH202
1
37
25
13
U201
4
3
U210
4
3
U21
1
C503
CR306
CR501
F501
SH304
C326
C327
C330
C338
L330
Q302
R311
R312
R313
R315
C329
C334
C336
C337
C339
C340
C341
C342
C343
C344
C345
C346
C347
C348
C355
C356
C357
C358
C359
C360
C361
C382
C383
C390
L314
L331
R343
R344
R350
SH322
1
37
25
13
U301
C306
C307
C309
C310
C31
1
C312
C313
C314
C315
C316
C317
C318
C321
C380
C395
CR303
CR304
CR305
L303
L304
L305
L306
L307
L340
Q301
R303
R304
R305
R306
R307
R328
R340
R347
SH302
C108
CR103
CR160
H101
P100
4
3
Q111
R101
R170
UHF2 (450-527MHz) Main Board Bottom Side PCB No. 8404102G08
Summary of Contents for GP-688
Page 5: ...Compact Professional Portable Radios Service Maintainability Issue July 2007 ...
Page 14: ...x THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 24: ...2 6 MAINTENANCE THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 32: ...3 8 SERVICE AIDS THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 34: ...4 2 POWER UP SELF TEST THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 38: ...iv THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 52: ...2 10 TROUBLESHOOTING CHARTS THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 64: ...3 12 CONTROLLER KEYPAD SCHEMATICS ...
Page 112: ...3 60 PCB and Schematic Drawings IP67 THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 116: ...3 64 PCB and Schematic Drawings IP67 THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 120: ...3 68 PCB and Schematic Drawings IP67 THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 147: ...Compact Professional Portable Radios VHF 136 174MHz Service Information Issue July 2007 ...
Page 150: ...iv ...
Page 172: ...2 10 TROUBLESHOOTING CHARTS THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 176: ...3 4 THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 192: ...3 20 VHF PCB Schematic Diagrams THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 240: ...iv THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 258: ...2 8 TROUBLESHOOTING CHARTS THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 284: ...3 26 UHF1 PCB and Scematics Diagrams THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 288: ...3 30 UHF1 PCB and Scematics Diagrams THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 302: ...3 44 UHF1 PCB and Schematic Diagrams THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 312: ...3 54 UHF1 PCB and Schematic Diagrams THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 318: ...3 60 UHF1 PCB and Schematic Diagrams THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 335: ...Compact Professional Portable Radios UHF2 450 527MHz Service Information Issue July 2007 ...
Page 338: ...iv THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 348: ...1 10 THEORY OF OPERATION THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 356: ...2 8 TROUBLESHOOTING CHARTS THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 360: ...3 4 UHF2 PCB SCHEMATICS PARTS LISTS THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 374: ...3 18 UHF2 PCB and Schematic Diagrams THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 378: ...3 22 UHF2 PCB and Schematic Diagrams THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 388: ...3 32 UHF2 PCB and Schematic Diagrams EPP THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 402: ...3 46 UHF2 PCB and Schemtaic Diagrams THIS PAGE INTENTIONALLY LEFT BLANK ...