Figure 9-169.Vhf (136-174 Mhz) Receiver Back End Schematic Diagram - Motorola HT Series Detailed Service Manual

VHF Circuit Board/Schematic Diagrams and Parts List (PCB 8486062B09)
RSSI
C3200
16pF
IF_1_ZIF
IF
L3200
1uH
RSSI_1_ZIF
RSSI_2_ZIF
RSSI
1.9V @ -47dBm
Q3202
5V
VSF_3_ZIF
R3225
VSF
4.5V
1K
5V_3_ZIF
5V
R3215
0
NU
4V_3.3V
SWB_PLUS_3_ZIF
R3214
SWB+
22
C3208
R3209
0.1uF
1K
NU
R3206
Q3201
100K
C3204
.01uF
R3207
R3208
39K
100 R3212
4.7K
C3210
R3202 1000pF
Y3200
4.7K
R3210
C3203
2.2k
100pF
6 IN OUT 3 1.5V
L3201
C3201
C3202
R3203
R3211
1uH
12pF
10K
2.2K
1 2 3 4
1.5pF NU
NU
NU
C3206
RSSI
.01uF
R3213
2.2K
C3209
1uF
(SOURCE)
Vdd_FILTERED Vdd_FILTERED
3.8V
R3226
10
C3270 C3271
.022uF 330pF
C3214
0.1uF
5V
R3218
10
C3272
NU
4.7pF
C3211
4.7uF
U3201
1
Vdda_3_ZIF
ON_OFF
5
VOUT Vdda
3
VIN
3.3V
C3212 C3215
GND
C3213
4.7uF
2
1uF 10pF
R5
R5_3_ZIF
R3200
150
R3201 C3205
2.2K 0.1uF
2.9V
L3202
1uH
Q3200
C3218
C3221
.01uF
4.7uF
R3204
10
C3230
100pF
C3243
C3207
R3205
.022uF
2.2pF
1K
R3219
100
5V Vdd_FILTERED
C3219
0.1uF
R3272
47K C3277
C3276
3 L3271
82pF
47pF
2.2uH
1 1.5V
Q3270
2
C3274
R3273
L3270 R3276
D3270
0.8V 33pF
47K
100nH 200K
C3273
R3271
47
10pF
C3275
R3270
56pF
1K
SH3201
SHIELD SHIELD
Vdd_FILTERED Vdd_FILTERED
R3220
4.7K
C3220
10pF
L3221
1uH
R3221 C3228
C3239
100 .01uF
C3229 C3225
100pF 0.1uF
.022uF
C3226
0.1uF
C3238 0.33uF
C3234 C3233
PRE_AGC
1uF
1uF
36
C4M
1
35
C3M
RED_VCC
2 34
RED_VSS C2M
3 33
PRE_IN C1M
4 32
C3235
RSSI_OUT VAG
5
31 0.22uF
LIM
RSSI_FLT
C3244 6 U3220 30
ROSE_VCC
EXTBS
.01uF 7 ROSE_VSS 29
AFC
8 DEMOD_HF 28
TESTD R3223
9 27
DEMOD_OUT
R3222 VPP
10 26
PHASE_LOCK 1K
100K NU GOLD_VCC
11
25
EMIT VAG_REF R3224
12
BASE
C3240
10
0.22uF
C3222
C3242
0.1uF
0.1uF
C3227
C3241
C3223
0.1uF
.01uF 1200pF
DATA_3_ZIF
R3275
CLK_3_ZIF
1K
1.5V
R3274
LVZIF_SEL_1_ZIF
2.4K
C3280
10nF
C3278
16_8MHz_3_ZIF
0.1uF
C3279
2.2uF
Figure 9-169. VHF (136-174 MHz) Receiver Back End Schematic Diagram
9-287
C3232
C3231
1uF
1uF
Vdd_FILTERED
C3224 0.1uF
SQ_OUT_1_ZIF
NU
SQ_OUT
C3237 100pF
DEMOD_1_ZIF
NU
DEMOD
C3236
.01uF
NU
Vdd_FILTERED
SH3202
SHIELD SHIELD
SH3203
SHIELD SHIELD
ZWG0130025-B