Sony DVP-C660 Service Ma page 76

Q Q
MPW1240 (SWITCHING REGULATOR) SCHEMATIC DIAGRAM
3 7 6 3 1 5 1 5 0
– Ref. No.: MPW1240 board; 5,000 series –
1
MPW1240 BOARD
SW1
!
A CN1 2P
F1
125V/2.5A
AC IN
L1
C1
14mH
0.1u
250V C3
100p
250V
C5
+
R2
220u
220k
200V
B
Q1
R3
2SK2638
220k
334
SWITCH
0.4
R19
C10
10
0.01u
C8
220p
1kV
R5
20k
T E
L 1 3 9 4 2 2 9 6 5 1 3
BEA1
0.4
0.1
C
Q2
SWITCH
D
1SS133
05
w w w
.
2 3
D11
ERA15-06
D101
D13
T1
21DQ10
ERA15-06
D12
HZ-18CP
L2
D14 ERA15-06
0
ERA15-06
C4
100p
250V
D301
ERB83-006
D7
R7
1SS133
220
D302
ERB83-006
R6
680
D21 D4
1SS133 1SS133
C301
D6
680u
1SS133
25V
R12 R11
R17
8.2k
18k
680
R9
6.8k
D5
HZS9B2 R10
R13
6.2k
3k
C9
C11
4700p 100p
C401
R8
330u
33k
35V
C15
2200p
250V
BEA101
D401
21DQ10
R301
D22 R22
150
PC1
470
PC817
R305
1k
R302
15k
3.8
IC302
IC302
TA76431S
SHUNT REG 2.5
x a o
y
i
4-73
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8
4
Q101 – 104
Q101
R111 R102 +11V REG
ZSB1642
B+
1k 1k
11
12.5
12.5
D104
Q104 R101
11.8 1SS133
D103
2SA933S 2.7k
R107
R103
11.8
R108
4.7k
12.5 56
C110
1.2k
+ C101
11.8
D110 1000p
330u 7.2 7.2
1SS133
35V
Q102 7.2
6.6
2SC1740S
R112
6.6 Q103
4.7k
2SC1740S
C111
D102 +
33u
HZS7A2
R113
35V
4.7k
P302
B+
60V/1.6A
B+
R412
B+
6.2k
P301
60V/2A
R203
R413 6.8k
+ 6.2k
Q Q
3 7 6 3
2SC1740S
D402
HZS7A2 Q403
2SA933S
–6.6
–7.2
Q402
–6.6
2SA933S
–7.2
–7.2
D410
Q404
1SS133
2SC1740S –12.6 C410
–11.9
D404
1000p
1SS133
–12
R407 R403
4.7k 100
R408
R411 –12.6
–12.0
5.6k
1k R402
1k
B– B–
–11
–12.6
Q401
Q401 – 404
2SD2012
–11V REG
R303
2.2k
VR301
C304
1k
0.1u
+5V
R304
2.7k
u 1 6 3
Note:
The components identi-
fied by mark 0 or dotted
.
line with mark 0 are criti-
cal for safety.
Replace only with part
number specified.
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2 4
9 9
5 6
Q301, 304
+3.3V REG
B+
R104 Q301
R313
Q304
2k 2SB1642
68 2SA933S B+
5 3.4
VR101
5
1k
R319
4.3
+11V 33k R311
4.3
910
R106 C306
R314
4.3
C305 R322
2k 33u
120
1000p 39
35V
+
R315
R316
IC303
2.9
1.2k R317
39
R105 TA76431AS
3k
4.7k
0.4
0.7
2.5
IC301
SHUNT REG
Q303 R318 R312
2SC1740S 1.2k 2.4k
5 4.9
B+
Q201
Q303
2SJ525
POWER CONTROL
0.8
D205
1SS133
Q201, 302
+5V REG
R306
C307
150
0
33u
1 5 1 5 0 8 9 2 4
35V
Q302
+
0.7
R405
4.7k
R406
2.2k
R404
2k
VR401
1k
–11V
NO MARK : E-E MODE
m
c o
Note:
Les composants identifiés par
une marque 0 sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro
spécifié.
4-74
DVP-C660/C670D/C675D
2
8 9 9
7
B+
CN101
15P
1 P DET
2 P CONT
B+
3 SW +11V
4 SW +11V
B+
5 SW +5V
6 SW +5V
B+
7 EVER +5V
AI-18 BOARD (5/5)
8 SW +3.3V CN907
B+
(SEE PAGE 4-49)
9 SW +3.3V
10 D GND
11 D GND
12 M GND
13 M GND
14 SW –11V
15 SW –11V
B+
R309
1.5k
9 8 2 9 9
R310
470
B–
SWITCHING REGULATOR
MPW1240