Vhf 2 (146-174 Mhz) 25-45 W Transmitter (Sht 2 Of 2) - Motorola Radius CM200 Service Manual

4-34
IF109
L119
35U02
COMP_B+
C1115 C1099 C1100 C1116
IF110
220pF
220pF 1000pF 1000pF
PA_FILT_B+
R123
R124
R125
TP107
Final_cur_sense 1
R145
D102
INTEGRATOR
C1050
V_REF_OPAMP
1000pF
INTEGRATOR
VHF 2 (146–174 MHz) 25–45 W Transmitter (Sht 2 of 2)
R132
100K
U102-2
NU
LM2904
R111 R114
NU
NU NU
5
4
7
1K 10K
6
C1055 FILT_SW_B+_PA
R113
C1056 8
10K
1000pF
C1073
NU 1000pF
NU
NU 1000pF
NU
R110 R115
R112
1K 10K 62K
NU NU
NU
C1058
L117 R116
10K
1000pF
35U02 NU
NU
R198
0
C1003
C1002
1uF 470pF
NU
L115
17nH C1096
82pF
width 2.032
7.5
Q100
MRF1550
GND1 R191 C1005 C1004 C1008 C1009 C1007 C1021
R190
GND2
1MEG
100pF
G 100pF
62pF 82pF 6.2pF
1MEG 7.5pF
NU
TP112
1
IF111
R5290 R160
DET_VFW D
100 3.3K
C1080
1000pF
R161
3.3K
D106
R135
FLT_9V
R151
7.5K
24K
4 R148 L103
13
Temp. Sense
14 1uH
C1051 22K
12
22K
C1052
U103-4 RT100
1000pF
11
47K
MC3303
1000pF
V_REF_OPAMP
TP108
1
R177
Final_cur_sense
TP113
100 NU
1
IF112
R5291
DET_VRVS
100
R104
51
L132
100nH
R196
0
NU
C1133
33pF
Coupler
C1111
V_reverse 470pF
D104
L116 L123
17nH 1.2uH
L131
120nH C5112
NU
C1199
C1019 R195
C1013 16pF
16pF
NU
6.2pF 32pF 0
NU
C1136
R103
51
4.7pF
R185
V_forward
C1035
VR102
.022uF
D105
Place near both sides of PA shields
C1134
R118 24pF
C1101
150
R172
100pF
C1067
1000pF
R149
U103-1
22K
MC3303
3
11
R142 C1059
1
C1091
2
22K 1000pF
4
1000pF
R143
22K
R156
10K
VHF 25–45 W Band 2 PCB 8486487Z04 / Schematics
D107
R162
V_reverse
3.3K
C1079
C1102
R163
1000pF
3.3K
100pF R120
R121
100 100
NU
D108
M4
1
1 1 1 1
C1132
82pF
Antenna Connector (Mini-U / BNC )
L113 L112 L111 L124
51nH 51nH 51nH 48nH
C1011
82pF C1017
R150
C1022 C1020 C1137 C1018
NU 47K
39pF 15pF
28pF 39pF 43pF
L114
51nH
PA_FILT_B+
TP114
10K
1
C1108
D103 IF101
R108 L108
RX
1.2uH
51 C1121
68pF
C1010 C1006 6.8pF
NU
R107
100pF 160pF
51
NU
5.6V
Q106
470
Q103
R157 IF102
TX_EN
56K
C1130
C1077
220pF 1000pF
TP110
1
IF103
PWR_SET
1 J11- 1
2 J11- 2
3 J11- 3
G1 J11-4
G2 J11- 5