Uhf2 (438-470 Mhz) 1-25 W Transmitter (Sht 2 Of 2) - Motorola CM200 Service Manual

UHF 1-25 W Band 2 PCB 8488978U01 (rev. P9) / Schematics
L117
1019447
L115
C1002
100.p
18.n
Q100
GND1
GND2
G
1
C1081
39.p
5
6
width 2.032
7.5
DNP DNP DNP
C1005 C1004 C1009 C1008 C1007 C1021 C1013
36.p 27.p 22.p 12.p 120.p 9.1p 8.2p
R183 R160
100. 3.3K
IF110
1
DET_VFWD
C1080
R161
IF111
39.p
3.3K
INTEGRATOR
D106
U102
LM2904
4
7
Current sense protection (option)
8
FILT_SW_B+_PA
C1073
120.p
Coupler
C1011
39.p
D104
V_forward
C1023
9.1p
R103
120.
C1076
13.p
C1035
R104 C1079
120.p
D105
470. 120.p
C1101
Q103
20.p R118
R119
100.
100.
U103
MC3303
11
3
C1059
1
120.p
R142
4 2
22.K
R143
22.K
R156
10.K
D102
C1050
120.p
CONTACTS FOR PA CLIP
M4
PLTD_HOLE3_5x7_0_TRIMMED
L113
17.n
L111
17.n
C1016
L126
C1026
6.8p
C1020 390.n
6.2p
3.3p
L114
PA_FILT_B+
18.n
R185
R108 L108
10K
51.000 390.0n
R107 D103
C1108
51.000
47.p
VR102 C1010 C1006
5.6
30.p 30.p
Q106
R172
470.
R157
56.K
C1078
C1067 C1130
120.p 39.p 39.p
R149
22.K
C1047
C1091
10.n
39.p
R135
43.K
PA's Temp. Sensor
U103
R148
MC3303
22.K
R145
4 13
22.K
14
12
11
C1051
120.p
C1052
120.p
V_REF_OPAMP

UHF2 (438-470 MHz) 1-25 W Transmitter (Sht 2 of 2)

4-9
Antenna Connector
J11-1
1
J11-2
2
R150
10K J11-3
3
J11-5
G2
J11-4
G1
IF100
1 RX
C1121
5.6p
IF101
1
TX_EN
C1077
39.p
IF102
1
PWR_SET
FLT_9V
R151
5.6K
L103
1.u
RT100
47.0K
73D02968C74-O
SHEET 2 OF 8