Motorola GP Series Detailed Service Manual page 176

3-32
TX_OUT
UHF (403-470 MHz) Transmitter
E101
BEAD R102
0.075
UNSWB+
L107
C123
33.47nH
10uF
C172
100pF
C109
L106
100pF 7.66nH
Microstrip Microstrip
R172
200
1
Q110 Microstrip
2
C111 C112 C113
10pF
13pF 47pF
3 R103
43
H101
HEATSINK
1
POS
SH101
SHIELD
1
PA SHIELD
C119
100pF
C114
100pF
R106
10
C121
L108 L109
100pF
4.22nH 11.03nH
C118
100pF
L160
C115 C116 C120
15pF 33pF C117 15.0nH
10pF
30pF
TX_INJ
C151
R107 C150
100pF
.022uF
TX_INJ_1 NU
C295
100pF
R111
20
R110 R112 C125
300 300 100pF
R104
47K
L113
5.6nH
-3dBm (Tx)@403.355MHz
R120
C127
43K C169
1000pF
5.6pF
-2dBm (Tx)@469.985MHz
C171 R171
R173
100pF 43K
180K
(disconnect C125 from
pin 16 of U101)
R109
200K
L115
390nH
UNSWB+
C160
L112
100pF
390nH
C130
100pF
C128
.022uF
R108
5.6K
C152
.022uF
R161
200
13
GND4
12
U101
GND3
09Z67 5
GND2
4 CLK
GND1
C161
0.1uF
UNSWB+
DATA
C165
CSX
100pF
L114 C174
390nH 100pF
UNSWB+
C129
7.5pF
C166
R132
C131
100pF
270K
.022uF
1
RFIN
2
T1
3
CI
4
INT
U102
5
CJ
H99S-4
C133 6
VL
1000pF
7
CL
C134 C135 8
GND1 V5EXT
3300pF .022uF
C138
100pF
UHF PCB 8480587Z03 Schematics
ANT_BIAS
7.386V
UNSWB+
7.323V
Q111
4 3
C105 C132
100pF 2 100pF
6 1
C122
100pF
0.432V
R133
NU
TX_BIAS
24
VAR3
23
RX
22
NA
21
RS
RESET
20
VAR1
19
C110
VLIM
18 100pF
VAR2
17
5V
C170
100pF
C126
0.1uF
CR105
LM50 C173
.022uF
R130
10K
2
VOUT
R131
3 18K
GND
ZMY0130018-E