Uhf Transmitter Schematic Diagram - Motorola GP88s Service Manual

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9A
UNSWB+
C109
L106
100pF
7.66nH
TX_OUT
C111
15pF
ZMY0130317-D

UHF Transmitter Schematic Diagram

E101
BEAD
R102
0.1
L107
C114
C123
33.47nH 100pF
10uF
C172
100pF
Microstrip Microstrip
R172
200
1
Q110
R176
6.2
2
C112 C113
51pF 10pF
C115
3
NU
R177
6.2
TX_INJ
H101
HEATSINK
R103
43
1
POS
C295
100pF
SH101
R110
SHIELD 300
1 if
R175
47K R120
C119
100pF 43K
C171
R173
100pF
180K
R106
10
C121
L108 R105 C160
100pF
100pF
4.22nH 0
C118
100pF
C116 C120
L160
C117
20pF 10pF 15.0nH
30pF
C151 C150
R107
.022uF
TX_INJ_1 NU 100pF
R161
75
R111
20
R112 C125 C161
300 100pF 0.1uF
R104
47K
C165
L113
100pF
5.6nH
C127
C169
1000pF
5.6pF
C129
7.5pF
R171
C166
43K
100pF
R109
200K
C133
1000pF
L115
390nH
UNSWB+
L112
22nH
C130
C128
100pF
.022uF
R108
5.6K
C152
.022uF
6
7 2 3
GND4
13
GND3
U101
12
30C65
GND2
5
CLK
GND1
4
UNSWB+
16 1 14 8 9 10 15
11
DATA
CSX
C122
100pF
L114
C174
390nH
100pF
FROM_RF
R133
UNSWB+
R132
C131
270K
.022uF
1
RFIN VAR3
2
T1 RX
3
CI NA
4
INT RS
U102
5
CJ H99S-4 VAR1
6
VL VLIM
7
CL VAR2
8
R134 C134 C135
GND1 V5EXT
1.6MEG 3300pF .022uF
C138 C126
100pF 0.1uF
Circuit Board/Schematic Diagrams and Parts List
ANT_BIAS
UNSWB+
Q111
4 3
10K
C105 C132
100pF 100pF
47K
2
4.7K
47K
6 1
NU
TX_BIAS
24
23
22
21
RESET
20
19
C110
100pF
18
17
5V
C170
100pF
CR105
C173
LM50
.022uF
R130
10K
2
VOUT
GND R131
18K
3