Yamaha AV-S77 Service Manual page 30

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A
B
AV-S77
1
I AV-S77C PRINTED CIRCUIT BOARD (Foil side)
(Lead Type Device 2/2)
MAIN P. C. B.
2
3
4
C
SPEAKERS
To SPEAKER R
5
To SPEAKER L
• Semiconductor Location
6
Ref. No.
Location
Ref. No.
Location
D300
J2
IC307
H3
D301
I3
IC313
B2
D308
C3
Q301
H3
D316
I2
Q303
H3
Q304
G3
D317
I2
IC301
F3
Q305
G3
IC302
E3
Q306
G3
IC303
I3
Q310
H3
IC304
G3
Q311
I3
7
IC306
G3
32
C
D
A
B
SYSTEM CONNECTOR
E
F
CENTER
SURROUND
MAIN
THROUGH
OUT
J model only
33
G
H
VIDEO
TV
AUX
To OPERATION
I
J
For
CPU
WRITER

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