Read Sony XM-7557 (serv.man2) Service Manual online
XM-7557
11
11
• PRINTED WIRING BOARD – POWER/LED/TR SECTION –
09
POWER BOARD
(SIDE A)
1
A
B
C
D
E
F
G
H
2
3
4
5
6
7
8
9
1-675-241-
12
TO
AMPLIFIER
BOARD
(Page 8)
• Semiconductor
Location
Ref. No.
Location
D801
A-4
D802
A-4
D803
A-3
D804
A-2
D805
A-1
Q801
A-3
Q802
A-2
Q803
A-1
CNB804
E
D802
D801
D803
D804
D805
1
7
LED BOARD
D
(Page 12)
THERMAL
OFFSET
HI-CURRENT
OVER CURRENT
HI-VOLTAGE
POWER BOARD
CNP804
1
A
2
3
4
BLK
BLU
BLU
BLU
BLU
BLU
BLU
R815
R812
R811
R810
R809
Q803
R814
R808
R807
R806
R805
Q802
R813
R804
R803
R802
R801
Q801
1-675-268-
11
09
E
E
R G
R G
R G
G
G
1-675-500- 11
Q703
CNB803
TR BOARD
1
E
3
09
TO AMPLIFIER BOARD
CNP803
(Page 8)
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