Figure 7-32. Vhf (146-174 Mhz) Transmitter And Power Control Schematic Diagram (8486342Z09-A) - Motorola CP150 Service Manual

7-26
TX_ENA
5T
C109
0.1uF
C100
820 mV (RF)
1500pF
TX_INJ
R101
18
R100 R102
300 300
C104
NU

Figure 7-32. VHF (146-174 MHz) Transmitter and Power Control Schematic Diagram (8486342Z09-A)

June, 2005
7.5 V
USWB+
R170
100K
7.5 V (RX) 2
0 V (RX) 0 V (TX)
3
3.3 V (TX)
1 1 Q170
TP0101T
R171
22K
3
C170
2 Q171
1500pF
DTC144EKA
C157
0.1uF
C155
0.1uF
R158
1.5K
C156
.01uF
5.8 V (Hi)
4.15 V (Lo) (TYP, TX)
8 2
TP150
1
1 3
4
U150-1
LM2904
2.6 V (Hi)
1.79 V (Lo) (TYP, TX)
PWR_SET
R162
10K
C158
1500pF
L110
R110
820 560nH
R107
C114 R106 L100 C111 R111 C110
150
NU 2.7K 0.1uF
1500pF 4.7K 560nH
L103
C102
1500 mV (RF)
30nH
0.1uF
4.9 V (TX)
C103 L101
1500pF 560nH
R105
1.2K
C105
3
NU
1
Q100
BFS540
L102
1.5 V (TX)
2
100nH
C171
R103
2.7pF
3.3K
R104 C101 C108
51 1500pF 0.1uF
SH100
SHIELD
1
0 V (RX)
6.78 V (TX)
C154
1500pF
R152
100K
1%
R153
C151
100K
1500pF
1%
C150
3 8 6
Q150 1500pF
1 7
5
R157 4
2
5.6K
R154
100K
U150-2
1%
LM2904 R155
C152 100K
1500pF 1%
C159 R156 C153
1500pF 330 0.47uF
C113 C115 C116
1500pF 1uF 0.1uF
4.25 V (Hi)
3.1 V (Lo) (TYP, TX)
VR110
C112
1500pF 5.6V
NU
DO NOT MEASURE
C118
2 3
C106
NU
1500pF
1100 mV (RF)
1 4
RFIN RFOUT
C117 D120
1000pF
MA4PH261
C107
10pF
5
U110
C130
RA07M1317M_VHF 12pF
0.9 V (TX)
0 V (RX)
L121
47nH
C122 D121
15pF BAR63-02W
VHF (146-174 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486342Z09-A)
U151
57R01
R151
22
R150
0.1
C120
R120 1500pF
39
R121
39
1.7 V (TX)
R122
0 V (RX)
39
L120 C121
560nH 1500pF
C131 C133 C135
3.3pF 3.9pF
3.3pF
C137
200pF
S1
L131 L132
L130
43.67nH 43.67nH 43.67nH S2
G1
C132 C134 C136
G2
27pF 27pF 13pF
T1
T2
C140
13pF
M140
RX_OUT
ANTENNA_NUT
C124
1
1500pF TAB1
2
TAB2
NC
C123
15pF
C141 L140
18pF
30.54nH
J140
3
TAB3 NC
4
TAB4
NC
6880309N62-C