Figure 9-156.Uhf Band 2 Transmitter Schematic Diagram - Motorola HT Series Detailed Service Manual

9-250
E101
R102
BEAD
0.075
L107
C123
10uF 33.47nH
C109
L106
100pF
7.66nH
Microstrip Microstrip
TX_OUT
1
Q110
2
C111 C112 C113
11pF 47pF 10pF
3
H101
HEATSINK
1
POS
SH101
SHIELD
1
PA SHIELD
Figure 9-156. UHF Band 2 Transmitter Schematic Diagram (PCB No. 8415235H05)
C114
100pF
C172
100pF
R106
R172
10
100
L109 C121
L108
R175
11.03nH 100pF
6.2 4.22nH
Microstrip
C118
R176
100pF
6.2
R103
C120
C115 C116 C117
43
NU
30pF 33pF
30pF
TX_INJ
R107
TX_INJ_1 NU
C295
100pF
R111
20
if
C125
R110 R112
100pF
300 300
R104
47K
R174
C119
NU
100pF R120
C127
43K
1000pF
C171
R173 R171
100pF
180K 43K
L115
390nH
FUSE_B+
C160 L112
100pF 22nH
C130 C128
L160
100pF .022uF
15.0nH
R108
5.6K
C152
C150
C151
.022uF
100pF .022uF
6
R161
EP
200 17
GND4
13
U101 GND3
12
30C65
GND2
5
GND1
C161 4
0.1uF
DATA
C165
L113
CSX
100pF
5.6nH
C169
L114 C174
5.6pF
390nH 100pF
UNSWB+
C129
7.5pF
C166
R132
C131
100pF
270K
.022uF
1
RFIN
2
T1
3
CI
R109
4
INT
200K U102
5
CJ H99S
C133
6
VL
1000pF
7
CL
8
C135
GND1
.022uF
R136 C134 C138
100pF
1MEG 3300pF
UHF Band 2 Circuit Board/Schematic Diagrams and Parts List (PCB 8415235H01, 8415235H05)
ANT_BIAS S502_SWITCH_P5
CR103
1 3
2
CLK
Q111
4 3
C105
100pF
2
6 1
C122
100pF
R133
NU
TX_BIAS
24
VAR3
23
RX
22
NA
21
RS RESET
20
VAR1
19 C110
VLIM
100pF
18
VAR2
17
V5EXT 5V
C170
100pF
C126
0.1uF
CR105
LM50 C173
.022uF
R130
10K
2
VOUT
R131
3 18K
GND