Motorola GP344 Detailed Service Manual page 414

3-58
C108
100pF
L101 L102
12.39nH 12.39nH
C101
C102 C103
100pF 6.2pF 13pF
J101
RF_JACK
1
4
2
GND
3
C141
L116
NU
9.75nH
J102
ANTENNA_NUT
TAB5 5
2
TAB4 4
TAB2
1 TAB3 3
TAB1
C140
NU
H101
HEATSINK
1
POS
UHF2 Transmitter Schematic Diagram
8485641Z02
E101
BEAD R102
0.1
UNSWB+
L107
C123
33.47nH
10uF
L105
390nH
C172
0.1uF
C109
L106
100pF
7.66nH
Microstrip Microstrip
1
Q110
R175
6.2
2
C111 C112 C113
11pF 47pF 10pF
3 R176
6.2
CR101
L104
12.39nH
RX_IN
A2 A1
CR102
2 1
C104 C106 C107
6.2pF 4.7pF 3.3pF
K 3
C188
R170
36pF 240
R101
240
R174
NU
SH100 SH101
SHIELD SHIELD
1 1
HF SHIELD PA SHIELD
C114
100pF
R106
10
R172
L109
L108 C121
200
4.22nH 11.03nH 100pF
Microstrip
C118
100pF
C115 C116 C117 C120
33pF 30pF 9.1pF
30pF
TX_INJ
R103
43
R107
TX_INJ_1 C151
NU
100pF
C295
100pF
R111
20
R110 R112
C125
300 300 100pF
R104
47K
L113
5.6nH
R120 3dBM@450MHz Tx
C127
C119
43K
1000pF
100pF 3dBM@527MHz Tx
C171
R173 R171
100pF
180K 43K
R109
200K
L115
390nH
UNSWB+
C160 L112
56pF 390nH
C130
L160 100pF
15.0nH
C128
.022uF
R108
5.6K
C152
.022uF
C150
.022uF
R161
200
GND4
GND3 13
U101
GND2 12
09Z67
GND1 5 CLK
C161 4
0.1uF
UNSWB+
DATA
C165
100pF CSX
C169
L114 C174
2pF
100pF
390nH
UNSWB+
C129
6.8pF
C166
R132
100pF C131
100K
.022uF
1 RFIN
2
T1
3
CI
4
INT
U102
5
CJ H99S
6
VL
7
C133
CL
1000pF
8
GND1
C135
.022uF
C138
R136 100pF
C134
1MEG
3300pF
UHF2 PCB and Schematic Diagrams
7.01V Tx
UNSWB+
7.08V Tx
Q111
4 3
10K
C105 C132
100pF
100pF
47K
2
4.7K
47K
6 1
C122
100pF
0.269V Tx
R133
NU
TX_BIAS
24
VAR3
23
RX
22
NA
RS 21
RESET
20
VAR1
C110
19
VLIM 100pF
18
VAR2
17
V5EXT
5V
C170
100pF
C126
0.1uF
CR105
1
LM50
C173
.022uF
R130
10K
2
VOUT
GND
R131
3 18K