Figure 9-68. Uhf (403-470 Mhz) Transmitter Schematic Diagram - Motorola HT Series Detailed Service Manual

UHF Band 1 Circuit Board/Schematic Diagrams and Parts List (PCB 8486458Z03)
UNSWB+
C109
L106
100pF
7.66nH
X_OUT
C111
11pF
E101
R102
BEAD
0.075
L107 C114
C123
33.47nH 100pF
10uF
C172
0.1uF
MicrostripMicrostrip
R172
1
200
Q110
R175
L108
6.2 4.22nH
Microstrip
2
C112
C113
47pF 10pF
3
R103
C115 C116
R176
43
30pF 33pF
6.2
TX_INJ
H101
HEATSINK
1
POS
C295
100pF
R111
20
SH101
R110
SHIELD 300
1
R174
PA SHIELD
C119
NU
100pF R120
43K
C171 R171
R173
43K
100pF 180K
ZMY0130018-F
UNSWB+
R106
10
C121 C160
L109 L112
100pF 100pF
22nH
0
C118
100pF
C130
L160
C117 C120
30pF 100pF
NU 15.0nH
R108
5.6K
C152
C151 C150
R107 .022uF
TX_INJ_1
NU 100pF .022uF
R161
200
GND4
GND3
U101
GND2
C65
if
GND1
C161
R112 C125
0.1uF
300 100pF
R104
47K
C165
L113
100pF
5.6nH
C127
C169
1000pF L114
5.6pF
390nH
C129
7.5pF
C166
C131
100pF
.022uF
R109
200K
C133
1000pF
L115
390nH
R136 C134
1MEG 3300pF
C128
.022uF
ANT_BIAS UNSWB+
CR103
1 3
2
13
12
5
CLK
4
Q111
UNSWB+
4 3
DATA C105
100pF 2
CSX
6 1
C122
100pF
C174
100pF
R133
UNSWB+
NU
R132
270K
1
24
RFIN VAR3
2
23
T1 RX
3
22
CI NA
4
21
INT U102 RS
5
20
H99S
CJ VAR1
6
19
VL VLIM
7
18
CL VAR2
C135 8
17
5V
GND1 V5EXT
.022uF
C170
100pF
C138 C126
100pF 0.1uF
CR105
LM50
R130
10K
2
VOUT
3
GND

Figure 9-68. UHF (403-470 MHz) Transmitter Schematic Diagram

9-89
C132
100pF
TX_BIAS
RESET
C110
100pF
C173
.022uF
R131
18K