Figure 4-53: Uhf Band 2 Transmitter Schematic Diagram (Pcb No. 8415235H07) - Motorola PR860 Detailed Service Manual

4-66
C109
100pF
TX_OUT
C111
11pF

Figure 4-53: UHF Band 2 Transmitter Schematic Diagram (PCB No. 8415235H07)

E101
R102
BEAD
0.075
L107 C114
C123
10uF 33.47nH 100pF
C172
100pF
L106
7.66nH
Microstrip Microstrip
R172
1 100
Q110
R175
6.2
Microstrip
2
C112 C113
R176
47pF 10pF
3
6.2
R103
C115
43
30pF
TX_INJ
H101
HEATSINK
1
POS
SH101
R110
SHIELD
300
1
R174
PA SHIELD
C119
NU
100pF R120
43K
C171
R173
100pF
180K
Schematic Diagrams, Overlays, and Parts Lists: UHF Band 2 Circuit Board/Schematic Diagrams and Parts List (8415235H07)
R106
10
L109 C121 C160 L112
L108
100pF
11.03nH 100pF 22nH
4.22nH
C118
100pF
C120
C116 C117 L160
NU 15.0nH 100pF
33pF 30pF
C150
R107 C151
TX_INJ_1 100pF .022uF
NU
C295
100pF
6
R161
R111
200
20
if
C125 C161
R112
100pF 0.1uF
300
R104
47K
C165
L113
100pF
5.6nH
C127
C169
1000pF L114
5.6pF
390nH
C129
R171 7.5pF
C166
43K
100pF
R109
200K
C133
1000pF
L115
390nH
R136
1MEG
FUSE_B+
C130 C128
.022uF
R108
5.6K
C152
ANT_BIAS
.022uF
CR103
1
EP
17 2
GND4
13
U101 GND3
12
30C65
GND2
5 CLK
GND1
4
Q111
4
C105
DATA
100pF
CSX
6
C122
100pF
C174
100pF
R133
UNSWB+
NU
R132
C131
270K
.022uF
1 24
RFIN VAR3
2 23
T1 RX
3 22
CI NA
4 21
INT RS
U102
5 20
CJ H99S VAR1
6 19
VL VLIM
7 18
CL VAR2
8 17
C135
GND1 V5EXT
.022uF
C170
100pF
C134 C138 C126
3300pF 100pF 0.1uF
CR105
LM50
R130
10K
2
VOUT
3
GND
S502_SWITCH_P5
3
3
2
1
TX_BIAS
RESET
C110
100pF
5V
C173
.022uF
R131
18K