Schematic Diagram - Dcdc Board; Printed Wiring Board - Headphone Board; Schematic Diagram - Headphone Board - Sony STR-DH520 Service Manual

STR-DH520
4-26. SCHEMATIC DIAGRAM – DCDC Board –
1 2 3
A
DCDC BOARD
CN1500
I
B 7P
CL1505
+4V 7
STANDBY-A
+4V 6
R3 GND 5
VIDEO
CL1500
R3 GND 4
MT PC
CL1501
+R3 supply (+13V) 3
BOARD
NC 2
+R3 supply (+13V) 1
CN904
L1500
R1500
C
10uH
(Page 31)
330k
C1501 C1503
10 10
C1500 C1502
0.1 10
D
E
L1600
10uH
F
R1600
330k
C1601 C1603
10 10
G
C1602
C1600 R1601
0.1 10
100k
STR-DH520
4 5 6 7
C1505 L1501
0.1 10uH
CL1502
C1510 C1511
0.1
0.1
CL1503
CL1504
C1509
R1503
0.1
0
C1611
4
0.1
BOOT PH
10
R1504
VIN
GND 10k
16.4
C1507
0.8 15p
EN COMP
3.8
0.7
SS VSNS
1.7
IC1500
TPS54331DR
C1508
R1505 C1610
IC1500
220p
1.5k
0.1
C1504
R1501
+4V REG
100k 0.01
R1502
R1506
150k
1k
C1605
L1601
0.1 10uH
C1609
0.1
6
BOOT PH
12.3
R1604
VIN
GND
10k
16.4
0.8 C1607 47p
EN COMP
3.8
0.7
SS VSNS
1.7
IC1600
C1608
TPS54331DR
68p
IC1600
C1604
0.01
+6V REG
R1602
R1605
68k 1.5k
Note: IC1500 and IC1600 on the DCDC board cannot exchange with
single. When these parts on the DCDC board are damaged,
exchange the entire mounted board.
4-27.
8 9
A
HDMI RE PC
1 +4V
BOARD
2 +4V B
J
3 DGND
(2/3)
4 DGND
CN3510
+6V
5
(Page 35)
6 +6V
CN1501
6P
MAIN
BOARD
C
CN391
(Page 19)
D
4-28. SCHEMATIC DIAGRAM – HEADPHONE Board –
A
B
MAIN
BOARD
(2/4)
CN391
C (Page 21)
38 38
PRINTED WIRING BOARD – HEADPHONE Board –
•
• See page 11 for Circuit Boards Location.
1 2 3 4
HEADPHONE BOARD
CL790
CL792
C793
C
TP790
CL793
CL791
1-881-045-
1 2 3 4
HEADPHONE BOARD
CN790
5P
CL790
HP_DETECT 1
CL791
C793
R-CH 3
A
470p
CL792
GND 4
CL793
C792
L-CH 5
470p
: Uses unleaded solder.
5 6 7
J790
PHONES
13
(13)
5 6
SIGN2
J790
PHONES
SIGN1