Puxing PX-666, Service Manual

Page: 22 / 22

10 11 12 13 14
A
B
C
D
E
14 13 12 11 10
L104
1uH
C119
102P
C118
20P
L107
101T
L106
8T
L105
101T
C128
103P
C131
104P
C126
105P C129
470P
R128
47R
R117
120K
R125
47K
R126
47K C123
102P
C116
102P
C113
104P
C135
1P
C140
NC
C141
NC
R123
0R
C136
7P
C148
15P
C138
100P
C130
20P
C125
470P
R127
0R
L119
2.2nH
C121
470P
C132
NC
C115
NC
C117
NC
1
3
2
4
8
U170A
LM2904V
7
5
6
U170B
LM2904V
R170
150K
R174
150K
R175
150K
R172
150K
R173
150K
R171
150K
C173
471P
C172
NC
C175
101P
R177
10K
C174
103P
C180
471P
R183
1M
R184
10K
R182
47K
E180
4.7uF
T181
DTC114EE
R176
NC
T171
DTC114EE
C176
102P
+5VT
R181
220K
R180
NC
R187
18K
C182
104P
R186
47K
R185
39K
C181
103P
L202
S32L
L203
S32L
L204
S32L
C203
15P
C204
3P
C205
1P
VC201
3-10P
C206
102P
R201
100K
R205
180R
C207
102P
R203
220K
L205
S32L
C209
1P
R204
100R
C208
102P
C211
0.5P
C212
0.5P
VC202
3-10P
L206
S32L
L207
S32L
C213
1P
L208
18n
C210
102P
C201
6P
C202
6P
C218
5P
T107
2SK3476
JP101
JPANT
D101
HVU131
C142
3P
C145
470P
C147
1P
C149
1P
C151
1.5P
C154
1P
L112
4T
L113
4T
L114
3T
C150
5P
C153
3P
C155
1.5P
L118
1uH
R154
270R
R139
270R
L109
220nH
C143
470P
L201
4T
C200
5P(B)
D201
HSC277
R200
0R
D202
HSC277
C144
1
2
MIC601
MIC
SP
SP
SW922
ANKEY
SW923
ANKEY
PTT
MONI
1
4
5
3
2
JK621
2.5mm
1
4
5
3
2
JK601
3.5mm
BATT+
BATT-
L801
101T
R801
F
D801
1SR145-400
C805
103P
C804
102P
C803
105P
R130
0.33R
R131
0.33R
R132
0.33R
E643
100uF
C645
221P
E642
10uF
R642
150R
C644
473P
R644
10R
C641
220P
R641
1K
C643
100P
nc
1
Vcc
2
nc
3
Vin
4
Ripple
5
NF
6
Phase
7
PreG
8
PwG
9
Pout
10
U641
TA7368F
E641
10uF
L711
101T
R926
1K C921
221P
C615
471P
R922
100R
R921
100R
T811
2SB624
R811
10K
R812
2K2
C811
103P
T812
DTC114EE
C812
104P
R813
RES
T201
3SK299(U72)
R601
1K
R602
560R
E601
4.7uF C603
103P
L601
101T
C601
104P
C602
471P
R603
100K
R612
100R
T601
MRF497
E603
2.2uF
D601
1SS372
C612
104P
C604
273P
R604
18K 1
3
2
4
8
U601A
LM4558
C607
223P
C606
102P
R606
680K
C608
223P
R608
1K5
5
6
U601B
LM4558
C609
100P
C605
102P
E602
4.7uF
R607
30K
R605
22K
R613
1K
D602
DAN222
R614
820R
KEY_PTT/RX232
TX232
KEY_MONITOR
MIC MUTE
P_AMP
APC
K
E
Y
_
P
T
T
/R
X
2
3
2
T
X
2
3
2
K
E
Y
_
M
O
N
IT
O
R
P
_
A
M
P
A
P
C
KEY_PTT/RX232
TX232
KEY_MONITOR
P_AMP
APC
+5VC
+
5
V
C
+5VC
+5VT
+5VT
+5VR
+B
+
B
+B
+B
+B
PX2903
PX2903 Revision E03B
SCHEMATIC DIAGRAM