![background image](http://html.mh-extra.com/html/motorola/gp-688/gp-688_detailed-service-manual_245927280.webp)
3-22
UHF1 PCB and Scematics Diagrams
Vdd_FILTERED
(SOURCE)
L331
2.2uH
R343
10
10uF
C382
C329
0.1uF
0.1uF
C348
0.1uF
C344
Vdda
C343
0.22uF
0.1uF
C347
C346
0.1uF
0.1uF
C345
DEMOD
100K
R350
C390
100pF
R344
12K
100pF
C383
Vdd_FILTERED
C349
.022uF
C350
330pF
C351
20pF
.022uF
C334
16.8MHz
CLK
DATA
LVZIF_SEL
0.22uF
C357
1200pF
C358
C359
0.1uF
VAG
VAG_REF
ROSE_VCC
ROSE_VSS
LIM
PHASE_LOCK
DEMOD_OUT
C4M
DEMOD_HF
C1M
C2M
C3M
TESTA
IOUT
MLPD_CR
FREF
GND
GOLD_VSS
CEX
CLK
COL
DATA
BROWN_VCC
BRP_OFF
PRE_AGC
GREEN_VSS
MIX_BYP
MIX_IN
PREAMP_OUT
GREEN_VCC
C3P
C4P
BLUE_VSS
C1P
C2P
BLUE_VCC
TESTD
VPP
PRE_IN
RED_VCC
RED_VSS
RSSI_FLT
RSSI_OUT
EMIT
EXTBS
GOLD_VCC
AFC
BASE
U301
32D83
8
9
3
1
2
5
4
11
6
10
7
12
16
15
24
21
20
14
19
18
13
17
22
23
48
43
42
46
47
41
38
37
44
40
39
45
32
25
30
29
31
26
27
36
28
33
34
35
0.15uF
15pF
C338
C361
.01uF
RSSI
C328
0.1uF
R314
3K
R5
330
R313
C355
C337
100pF
.022uF
C356
C326
.01uF
L314
2.2uH
C336
0.1uF
Vdd_FILTERED
C342
1uF
C341
1uF
C340
1uF
1uF
C339
LVZIF BTM SHEILD
CRYSTAL FILTER SHIELD
LVZIF TOP SHEILD
SH322
SHIELD
SH321
SHIELD
SH323
SHIELD
1
1
1
BFQ67W
Q320
3
2
12pF
C352
1
C353
43pF
0
R355
R320
3.9K
2.2uH
L325
R346
56K
47pF
C354
2K
R324
CR310
C385
56pF
100nH
L332
1K
R321
R322
200K
8200pF
C364
C362
0.1uF
C363
1uF
C384
56pF
10K
R345
C360
.022uF
680nH
L330
C330
10pF
C327
100pF
2.4K
R312
Q302
R351
0
R315
12K
.01uF
C325
30K
R311
3.3K
R352
XTAL
FL301
TBD
OUT
IN
GND
GND1
GND2
GND3
3
6
1
2
4
5
IF
C323
150pF
L311
750nH
20pF
C324
UHF1 (403-470 MHz) Receiver Back End Schematic Diagram
8404077G05/G06/G07/G09
Содержание GP-688
Страница 5: ...Compact Professional Portable Radios Service Maintainability Issue July 2007 ...
Страница 14: ...x THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 24: ...2 6 MAINTENANCE THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 32: ...3 8 SERVICE AIDS THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 34: ...4 2 POWER UP SELF TEST THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 38: ...iv THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 52: ...2 10 TROUBLESHOOTING CHARTS THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 64: ...3 12 CONTROLLER KEYPAD SCHEMATICS ...
Страница 88: ...3 36 PCB and Scematic Diagrams Radios with Keypad and Display EPP THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 92: ...3 40 PCB and Scematic Diagrams Radios with Keypad and Display EPP THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 96: ...3 44 PCB and Scematic Diagrams Radios with Keypad and Display EPP THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 112: ...3 60 PCB and Schematic Drawings IP67 THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 116: ...3 64 PCB and Schematic Drawings IP67 THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 120: ...3 68 PCB and Schematic Drawings IP67 THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 130: ...3 78 PCB and Schematic Diagrams Radios without Keypad and Display THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 132: ...3 80 PCB and Schematic Diagrams Radios without Keypad and Display THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 134: ...3 82 PCB and Schematic Diagrams Radios without Keypad and Display THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 137: ...PCB and Schematic Diagrams Radios without Keypad and Display EPP 3 85 Complete Controller Schematic Diagram 8415885H01 ...
Страница 140: ...3 88 PCB and Schematic Diagrams Radios without Keypad and Display EPP Controller Memory Schematic Diagram 8415885H01 ...
Страница 142: ...3 90 PCB and Schematic Diagrams Radios without Keypad and Display EPP THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 147: ...Compact Professional Portable Radios VHF 136 174MHz Service Information Issue July 2007 ...
Страница 150: ...iv ...
Страница 172: ...2 10 TROUBLESHOOTING CHARTS THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 176: ...3 4 THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 192: ...3 20 VHF PCB Schematic Diagrams THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 195: ...VHF PCB and Schematic Diagrams EPP 3 23 VHF 136 174MHz Controls And Switches Schematic Diagram sht 1 of 2 8415533H02 ...
Страница 196: ...3 24 VHF PCB and Schematic Diagrams EPP VHF 136 174MHz Controls And Switches Schematic Diagram sheet 2 of 2 8415533H02 ...
Страница 197: ...VHF PCB and Schematic Diagrams EPP 3 25 VHF 136 174MHz Receiver Front End Schematic Diagram 8415533H02 ...
Страница 198: ...3 26 VHF PCB and Schematic Diagrams EPP VHF 136 174MHz Receiver Back End Schematic Diagram 8415533H02 ...
Страница 199: ...VHF PCB and Schematic Diagrams EPP 3 27 VHF 136 174MHz Synthesizer Schematic Diagram 8415533H02 ...
Страница 200: ...3 28 VHF PCB and Schematic Diagrams EPP VHF 136 174MHz Voltage Controlled Oscillator Schematic Diagram 8415533H02 ...
Страница 201: ...VHF PCB and Schematic Diagrams EPP 3 29 VHF 136 174MHz Transmitter Schematic Diagram 8415533H02 ...
Страница 202: ...3 30 VHF PCB Schematic Diagrams and Radio Parts List RF Radio EPP THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 208: ...3 36 VHF PCB Schematic Diagrams and Radio Parts List RF Radio EPP THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 218: ...3 46 VHF PCB Schematic Diagrams and Radio Parts List RF Board IP67 THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 224: ...3 52 VHF PCB Schematic Diagrams and Radio Parts List RF Board IP67 THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 237: ...Compact Professional Portable Radios UHF1 403 470MHz Narrow Band 450 470MHz Service Information Issue July 2007 ...
Страница 240: ...iv THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 258: ...2 8 TROUBLESHOOTING CHARTS THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 284: ...3 26 UHF1 PCB and Scematics Diagrams THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 288: ...3 30 UHF1 PCB and Scematics Diagrams THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 302: ...3 44 UHF1 PCB and Schematic Diagrams THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 312: ...3 54 UHF1 PCB and Schematic Diagrams THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 318: ...3 60 UHF1 PCB and Schematic Diagrams THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 328: ...3 70 UHF Narrow Band PCB Schematic Diagrams and Radio Parts List RF Board THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 334: ...3 76 UHF Narrow Band PCB Schematic Diagrams and Radio Parts List RF Board THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 335: ...Compact Professional Portable Radios UHF2 450 527MHz Service Information Issue July 2007 ...
Страница 338: ...iv THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 348: ...1 10 THEORY OF OPERATION THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 356: ...2 8 TROUBLESHOOTING CHARTS THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 360: ...3 4 UHF2 PCB SCHEMATICS PARTS LISTS THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 374: ...3 18 UHF2 PCB and Schematic Diagrams THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 378: ...3 22 UHF2 PCB and Schematic Diagrams THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 388: ...3 32 UHF2 PCB and Schematic Diagrams EPP THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 402: ...3 46 UHF2 PCB and Schemtaic Diagrams THIS PAGE INTENTIONALLY LEFT BLANK ...