Schematic Diagram - Dc-Dc Board - Sony STR-DA3300ES Service Manual

6-76. SCHEMATIC DIAGRAM – DC-DC Board –
1 2
DC-DC BOARD
A
B
C
BS
MAIN
POWER
TRANSFORMER
T001
(Page 105)
D
E
F
G
H
I
STR-DA3300ES/DG1100
• See page 106 for IC Block Diagrams.
3 4 5
F1405
T6.3AL
250V
IC1404
SI-8050S-LF1101
1 2 3 4 5
25.2 6.5 5 2.4
L1404
100uH
R1406
C1406
C1411
1000
10
35V
50V
IC1402
SI-8008HFE
1 2 3 4 5
25.2 0.8 3.7
3.4
L1402
100uH
R1417 C1423
22 2200p
R1411
1k
C1409
D1403
C1404
0.1
RK14-LFA-A1
1000
35V
R1412
330
6 7 8
D1401
RBV-602LF-A
2
4
3
1
C1402
3300
35V
IC1404
+6V REGULATOR
IC B/D
25.2
L1410
100uH
R1408
75 100
L1405
100uH
C1416
C1407
D1406
1000
1000
RK14-LFA-A1
16V
35V
IC1402
+3.3V REGULATOR
IC B/D
25.2
L1403
100uH
L1407
100uH
R1410 3.7
100
0
C1414
Q1409
1000
C1405
RT1N241C-TP-1
16V
(NO USE) 2200
35V
103 103
9 10
IC1405
SI-8120JF
IC1405
+12V REGULATOR
IC B/D
1 2 3 4 5
12 12 24
L1409
100uH
C1417
C1412
0.1 1000
16V
IC1403
IC1403
SI-8008HFE
+4V REGULATOR
IC B/D
1 2 3 4 5
4 0.8 3.7
L1408
100uH
R1405
R1407
2.2k 1k
C1415
2200
C1410
16V
0.1
D1404
FMB-G16L
STR-DA3300ES/DG1100
11 12
CN1401
15P
+24V
GND_+24V
GND
DCDC-5V
GND-5V
AG
DCDC+12V
GND+12V
MAIN
+6V
BOARD
(4/4)
GND+6V
CN1003
DCDC4V
(Page 71)
GND4V
DCDC3.3V
GND3.3V
D-POW
CX1451
BD
4P
1 +6V
D_VIDEO
BOARD
3 GND
(9/9)
4 +4V
CN3508
(Page 81)