STR-DH520
STR-DH520
38
38
4-28. SCHEMATIC DIAGRAM – HEADPHONE Board –
4-26. SCHEMATIC DIAGRAM – DCDC Board –
1
A
B
C
2
3
4
5
6
HEADPHONE BOARD
CL790
CL791
CL792
CL793
1
3
4
5
CN790
5P
HP_DETECT
R-CH
GND
L-CH
470p
C792
470p
C793
SIGN2
SIGN1
J790
PHONES
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.
1
A
B
C
D
E
F
G
2
3
4
5
6
7
8
9
DCDC BOARD
4
0.8
0.7
10
3.8
16.4
1.7
6
0.8
0.7
12.3
3.8
16.4
1.7
IC1500
RB051LA-40TR
D1500
0.1
C1500
10uH
L1501
RB051LA-40TR
D1600
10uH
L1601
47p
C1607
68p
C1608
10uH
L1500
10
C1503
10uH
L1600
10
C1501
0.1
C1600
10
C1603
10
C1602
10
C1601
10
C1502
CL1500
CL1501
CL1502
CL1503
CL1504
CL1505
25V
1000
C1506
25V
1000
C1606
TPS54331DR
+4V REG
IC1500
IC1600
TPS54331DR
+6V REG
IC1600
6P
CN1501
0.1
C1611
0.1
C1505
0.1
C1509
0.1
C1510
0.1
C1610
0.1
C1511
0.1
C1609
0.1
C1605
470
R1603
0.01
C1504
0.01
C1604
10k
R1504
1.5k
R1505
1.5k
R1605
10k
R1604
1k
R1506
0
R1503
150k
R1502
68k
R1602
330k
R1600
100k
R1601
100k
R1501
330k
R1500
15p
C1507
220p
C1508
7P
CN1500
+6V
+6V
DGND
DGND
+4V
+4V
6
5
4
3
2
1
NC
+R3 supply (+13V)
+R3 supply (+13V)
R3 GND
R3 GND
+4V
+4V
2
1
3
4
5
6
7
4-27. PRINTED WIRING BOARD – HEADPHONE Board –
• See page 11 for Circuit Boards Location. •
: Uses unleaded solder.
1
A
B
C
D
2
3
4
5
6
7
TP790
J790
1
5
3
CN790
C792
C793
CL790
CL792
CL793
CL791
HEADPHONE BOARD
1-881-045- 13
(13)
PHONES
