Motorola CP040 Detailed Service Manual page 116

3-10
0 V (Rx)
TX_ENA
PA_TX_ENA
1.8V (Tx)
5T
820 mV (RF)
TX_INJ
PA_TX_INJ
R101
18
R100
300
VHF1 (136-162 MHz) Transmitter and Power Control Schematic Diagram (8486769Z02-A)
USWB+
PA_USWB+
7.4 V (Rx)
3
R171
0.15 V (Tx)
1
Q171
MMBT3904
6.8K
2
R524
10K
2.5 V (Low)
3.0 V (Hi)
TP150
1
2.4 V (Hi)
1.06 V (Low)
PWR_SET
PA_PWR_SET
R110
360
PA_5T
R107
C111
C109 C114 R106 L100
150
NU
0.1uF 1500pF 4.7K 560nH
1500 mV (RF)
C102
0.1uF
4.9 V (Tx)
L101
C103
1500pF 560nH
R105
1.5 V (Tx)
C100 1.2K
1500pF 3
1
Q100
BFS540
L102
2
100nH
R102 R103
300 3.3K
C171
2.7pF
C104
NU
R104 C101
51 1500pF
SH100
SHIELD
1
7.5 V
C170
0.1uF
4 5 6
Q170
EMB10
3 2 1
0 V (Rx)
7.25 V (Tx)
C172
1500pF
0 V (Rx)
C157
0.1uF
7.3 V (Tx)
C154
1500pF
C155
0.1uF
R158
C151
1.5K
1500pF
C156
.01uF
3 8 6
Q150
1 7
5
R157 4
2
5.6K
8 2
1 U150-2
3 LM2904
4
U150-1 C159 R156 C153
1500pF 330
0.47uF
LM2904
R162
10K
C158
1500pF
C113
2.5 V (Low) 1500pF
L110
3.0 V (Hi)
560nH
C110 C112 VR110
R111
0.1uF 1500pF 4.3V
NU
DO NOT MEASURE
2 3
L103 C106
30nH
1500pF
1 4
RFIN RFOUT
C117
1100 mV (RF)
1000pF
5
C107
U110
C105
10pF
NU RA07M1317M_VHF
C108
0.1uF
R152
100K
1%
R153
100K
1%
U151
C150
57R01
1500pF
R154 R151
100K 22
1% R150
R155
0.1
C152 100K
1500pF 1%
R120
C120
150
1500pF
R121
150
0 V (Rx)
1.6 V (Tx)
C115 C116
0.1uF
1uF
L120 C121
560nH 1500pF
C131 C133 C135
3.3pF 3.9pF
3.3pF
C137
200pF
L131 L132
L130
D120
43.67nH 43.67nH 43.67nH
MA4PH261
C130 C132 C134 C136
12pF 27pF 27pF 13pF
0 V (Rx)
L121
0.9 V (Tx)
47nH
RX_OUT
PA_RX_OUT
C124
1500pF
C122
15pF
D121
C123
MA4PH261
15pF
VHF1 PCB 8486769Z02-A Schematic Diagrams
S1
S2
G1
G2
T1
T2
C140
13pF
J140
M140
ANTENNA_NUT
1 3
TAB1 TAB3 NC
2 4
NC TAB2 TAB4 NC
C141 L140
18pF
30.54nH