Motorola CP040 Detailed Service Manual page 132

3-26
TX_ENA
820 mV (RF)
TX_INJ
PA_TX_INJ
R100
300
VHF1 (136-162 MHz) Transmitter and Power Control Schematic Diagram (8486769Z04-C/Z05-D)
USWB+
PA_USWB+
0 V (Rx) 7.4 V (Rx)
3
R171
0.15 V (Tx)
1
Q171
MMBT3904
6.8K
PA_TX_ENA
2
1.8V (Tx)
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
5T
PA_5T
R107
C109 C114 R106 L100
150
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
R101
2
100nH
18
R102 R103
300 3.3K
C171
2.7pF
C104
NU
R104
51
SH100
SHIELD
1
7.5 V
C170
0.1uF
4 5 6
Q170
EMB10
3 2 1
C172
1500pF
0 V (Rx)
C157
0.1uF
7.3 V (Tx)
C154
1500pF
C155
0.1uF
R158
1.5K
C156
.01uF
3 8
Q150
1 7
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
2.5 V (Low)
L110
R110
3.0 V (Hi)
360 560nH
C111 R111 C110 C112 VR110
NU 0.1uF 1500pF 4.3V
NU
2 3
L103 C106
30nH
1500pF
1
RFIN RFOUT
1100 mV (RF)
5
C107
U110
C105
10pF RA07M1317M_VHF
NU
C101 C108
1500pF 0.1uF
VHF1 PCB 8486769Z04-C/Z05-D Schematic Diagrams
0 V (Rx)
7.25 V (Tx)
R152
100K
1%
R153
C151
100K
1500pF
1%
U151
C150
6 57R01
1500pF
5
R154 R151
100K 22
1% R150
R155
0.1
C152 100K
1500pF 1%
R120
C120
150
1500pF
R121
150
C113 C115 C116
0.1uF
1500pF 1uF
L120 C121
560nH 1500pF
C131 C133 C135
3.3pF 3.9pF
DO NOT MEASURE 3.3pF
4
L131 L132
L130
C117 D120
43.67nH 43.67nH 43.67nH
1000pF
MA4PH261
C130 C132 C134 C136
12pF 27pF 27pF 13pF
0 V (Rx)
L121
0.9 V (Tx)
47nH
PA_RX_OUT
C124
1500pF
C122
15pF
D121
C123
MA4PH261
15pF
0 V (Rx)
1.6 V (Tx)
C137
200pF
S1
S2
G1
G2
T1
T2
C140
13pF
J140
M140
RX_OUT
ANTENNA_NUT
1 3
TAB1 TAB3 NC
2 4
NC TAB2 TAB4 NC
C141 L140
18pF
30.54nH