Figure 9-155.Uhf Band 2 Transmitter Schematic Diagram - Motorola HT Series Detailed Service Manual

UHF Band 2 Circuit Board/Schematic Diagrams and Parts List (PCB 8415235H01, 8415235H05)
UNSWB+
C109
L106
100pF
7.66nH
TX_OUT
Microstrip
C111
C112
13.0pF
36pF
E101
BEAD
R102
0.1
L107
C123
33.47nH
10uF
C114
100pF
C172
0.1uF
Microstrip 1
Q110
R172
200
R175
3.0
Microstrip
2
C181 3
C113
NU
15pF
L117
C180
22.0nH
NU
R176
3.0
H101
HEATSINK
1
POS
SH101
SHIELD
1
PA SHIELD
R174 C119
100pF
NU
(Use 82K with new PA)
C171
100pF
R106
10
C160
L108 R191 C121
56pF
4.22nH 0 100pF
C118
100pF
L160
C116 C117
C115 C120
11pF 10pF NU
27pF 16pF
TX_INJ
C150
R107 C151
TX_INJ_1 NU 100pF .022uF
C295
100pF
R161
R111
200
20
C161
R110 R112 C125
0.1uF
300 300 100pF
R104
47K
C165
L113
100pF
5.6nH
R120
C127
C169
43K
1000pF
2pF
C129
6.8pF
R173 R171
180K 43K
R109
200K
C133
1000pF
L115
390nH
R136
1MEG
UNSWB+
L112
390nH
C130 C128
100pF .022uF
R108
5.6K
C152
.022uF
6
EP
17
GND4
13
U101 GND3
12
30C65
GND2
5
CLK
GND1
4
UNSWB+
C105
DATA
100pF
CSX
C122
100pF
L114 C174
100pF
390nH
R133
UNSWB+ NU
C166
R132
100pF C131
100K
.022uF
1 24
RFIN VAR3
2 23
T1 RX
3 22
CI NA
4 21
INT RS
U102
5 20
CJ H99S-4 VAR1
6 19
VL VLIM
7 18
CL VAR2
8 17
C135
GND1 V5EXT
.022uF
C134
3300pF
C138 C126
100pF 0.1uF
GND
Figure 9-155. UHF Band 2 Transmitter Schematic Diagram (PCB No. 8415235H01)
9-249
ANT_BIAS
UNSWB+
CR103
1 3
2
Q111
4 3
C132
100pF
2
6 1
TX_BIAS
RESET
C110
100pF
5V
C170
100pF
CR105
C173
LM50
.022uF
R130
10K
2
VOUT
R131
3 18K