Read Sony DVP-LS755P Service Manual online
DVP-LS755P
4-36
4-35
POWER SUPPLY BLOCK
(SWITCHING REGULATOR)
POWER SUPPLY BLOCK (SWITCHING REGULATOR) SCHEMATIC DIAGRAM
• See page 4-33 for printed wiring board.
The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
B+
B+
B+
B-
B+
B+
B+
B+
B+
B+
B+
308.7
5.8
20.2
4.9
8.3
0.5
8.2
5
4.9
3.8
3.4
0.4
1.1
5.7
4.1
7.5
5.8
4
4
2.4
NO MARK: DVD/CD PLAY
C105
33u
400V
+
1
SW+8V
2
MTR GND
3
EVER+11V
4
EVER+5V
5
SW+3.3V
6
SW+5V
7
GND
8
P-CONT
9
POWER SW
10
EVER-10V
CN201 10P
R203
1k
R202
180
R201
1k
R212
1
Q201
KTB985-B/P
B+ SWITCH
C202
100u
100u
+
C217
0.1u
D208
HER104
D201
HER104
D207
1SS133
D205
1N4005
L202
10u
C106
10u
D203
BZX85C27TAP
D206
MTZJ3.6B
D202
HER203
D204
SR310
R206
1k
IC201
KIA431A-AT
PHC101
LTV817M-C
R209
R208
10k
R210
10k
C204
1u
+
C107
47u
25V
25V
+
+
T101
D107
HT13G
D106
UDZSTE-1712B
D105
ST02D-170
C108
0.1u
C109
47p
1kV
1kV
C209
47p
1kV
1kV
R104
56
C110
680p
250V
680p
250V
D101
1N4005
D103
1N4005
D104
1N4005
D102
1N4005
L101
43mH
C101
0.047u
275V
C102
330p
250V
330p
250V
C103
330p
250V
330p
250V
AC IN
C104
0.047u
275V
F101
(2A/250V)
C211
100u
100u
25V
+
C203
680u
680u
10V
+
C201
100u
100u
25V
+
C212
47u
25V
25V
+
C210
47u
25V
25V
+
1
A
B
C
D
2
3
4
5
6
7
8
05
IC201
SHUNT REG
IC101
SWITCHING
CONTROL
MV-044 BOARD
(5/5)
CN771
(SEE PAGE 4-17)
L
N
L203
4.7u
L201
10u
L205
10u
CN101
2P
C205
220u
220u
10V
+
C214
22u
35V
35V
+
C207
10
+
C206
33u
25V
25V
+
C216
0.1u
Q202
KTC3875S-GR/P
POWER
CONTROL
R215
10
R204
1k
R216
1.5k
R205
68
Q203
KTC3209Y/P
B+ SWITCH
R214
1k
R217
1k
SW201
POWER SUPPLY BLOCK
(SWITCHING REGULATOR)
(SWITCHING REGULATOR)
XX MARK: NO MOUNT
1
13
15
11
12
3
G
D
S
6
5
10
9
14
8
7
4
3
4
2
1
R103
12
IC101
MIP3E3SMY
CP202
(1.6A)
Q204
KTC3209Y/P
B+ SWITCH
R211
100
R213
180
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