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
Summary of Contents for GP-688
Page 5: ...Compact Professional Portable Radios Service Maintainability Issue July 2007 ...
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Page 52: ...2 10 TROUBLESHOOTING CHARTS THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 64: ...3 12 CONTROLLER KEYPAD SCHEMATICS ...
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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 ...
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Page 335: ...Compact Professional Portable Radios UHF2 450 527MHz Service Information Issue July 2007 ...
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Page 360: ...3 4 UHF2 PCB SCHEMATICS PARTS LISTS THIS PAGE INTENTIONALLY LEFT BLANK ...
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Page 388: ...3 32 UHF2 PCB and Schematic Diagrams EPP THIS PAGE INTENTIONALLY LEFT BLANK ...
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