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VHF PCB 8486062B16 / Schematics
4-41
VHF (136-174 MHz) Receiver Back End
R3209
1K
C3208
0.1uF
NU
R3207
Q3201
39K
100K
R3206
R3208
100
RSSI
XTAL
Y3200
0.1uF
.01uF
C3205
C3204
2.2K
R3201
R5
150
R3200
R5_3_ZIF
1uH
L3200
IF_1_ZIF
C3200
16pF
C3201
1.5pF
NU
1
GND
GND1
2
4
GND2
5
GND3
3
OUT
6
IN
L3201
1uH
NU
C3202
NU
12pF
10K
R3203
2.2K
R3211
100pF
C3203
4.7K
R3202
2.2K
R3210
MMBR941
Q3200
10
R3204
L3202
1uH
R3212
4.7K
C3210
1000pF
1K
R3205
C3206
.01uF
C3207
2.2pF
100pF
C3230
4.7uF
C3218
.01uF
C3221
R3219
100
0.1uF
C3222
C3219
0.1uF
5V
Vdd_FILTERED
.022uF
C3243
C3244
.01uF
R3222
100K
C3238
0.33uF
48
43
42
46
47
41
38
37
44
40
39
45
TESTA
TESTD
VAG_REF
PRE_AGC
PRE_IN
RED_VCC
RED_VSS
ROSE_VCC
ROSE_VSS
RSSI_FLT
RSSI_OUT
GREEN_VSS
IOUT
MIX_BYP
MIX_IN
MLPD_CR
PHASE_LOCK
PREAMP_OUT
DEMOD_OUT
EMIT
EXTBS
FREF
GND
GOLD_VCC
GOLD_VSS
GREEN_VCC
C3P
CEX
CLK
COL
DATA
DEMOD_HF
BLUE_VSS
BROWN_VCC
BRP_OFF
C1P
C2P
BASE
BLUE_VCC
U3220
mgc_comps
C3234
1uF
8
32
VAG
25
9
VPP
3
1
2
30
29
5
4
LIM
31
26
27
11
6
10
36
C4M
C4P
28
33
C1M
34
C2M
35
C3M
7
AFC
12
16
15
24
21
20
14
19
18
13
17
22
23
C3240
0.22uF
Vdd_FILTERED
Vdd_FILTERED
0.1uF
C3225
100pF
C3229
C3220
10pF
4.7K
R3220
L3221
1uH
C3239
.022uF
C3228
.01uF
0.1uF
C3226
R3221
100
DEMOD
SQ_OUT
Vdd_FILTERED
C3224
0.1uF
0.22uF
C3235
C3237
1K
100pF
NU
R3223
R3224
10
C3236
.01uF
C3233
1uF
C3232
1uF
C3231
1uF
DEMOD_1_ZIF
0.1uF
C3223
C3242
0.1uF
1200pF
C3241
C3227
.01uF
CLK_3_ZIF
DATA_3_ZIF
16_8MHz_3_ZIF
LVZIF_SEL_1_ZIF
Vdd_FILTERED
SH3202
SHIELD
1
SHIELD
1
2
3
SH3203
RSSI_1_ZIF
RSSI
1uF
C3209
RSSI_2_ZIF
2.2K
R3213
RSSI
5V
VSF
5V_3_ZIF
VSF_3_ZIF
0.1uF
C3214
R3225
1K
Q3202
5V
5V
IF
Vdd_FILTERED
10
R3226
Vdd_FILTERED
(SOURCE)
SWB+
SWB_PLUS_3_ZIF
R3214
22
4V_3.3V_ZIF
0
NU
R3215
10pF
C3215
10uF
C3212
3
1
2
5
4
VOUT
LP2980
GND
NC
ON_OFF*
VIN
U3201
10
NU
R3218
4.7uF
C3211
Vdda
Vdda_3_ZIF
C3213
4.7uF
CLK
LVZIF_SEL
DATA
16.8MHz
.022uF
C3270
C3271
330pF
BFQ67W
1
3
2
Q3270
C3274
33pF
C3272
4.7pF
10pF
C3273
R3270
1K
C3275
56pF
47
R3271
L3270
100nH
200K
R3276
47K
R3273
R3272
47K
13pf
C3276
D3270
C3277
82pF
2.2uH
L3271
C3280
.01uF
2.2uF
C3279
C3278
.022uF
R3275
1K
2.4K
R3274
SH3201
SHIELD
1
ZMY0130481-B
ZMY0130481-B
Содержание GP1280 Series
Страница 1: ...Professional Radio GP Series VHF 136 174MHz Service Information Issue November 2004 ...
Страница 24: ...2 14 THEORY OF OPERATION ...
Страница 34: ...3 10 TROUBLESHOOTING CHARTS ...
Страница 38: ...4 4 VHF PCB SCHEMATICS PARTS LISTS ...
Страница 50: ...4 16 VHF PCB 8486062B12 Parts List Intentionally Left Blank ...
Страница 54: ...4 20 VHF PCB 8486101B09 Schematics GP1280 Intentionally Left Blank ...
Страница 64: ...4 30 VHF PCB 8486062B14 Parts List Intentionally Left Blank ...
Страница 108: ...4 74 VHF PCB 8486473Z04 Radio Parts List Intentionally Left Blank ...