Yamaha AV-S77 Service Manual page 34

A B
AV-S77
1
I NX-SW77 PRINTED CIRCUIT BOARD (Component side)
• Semiconductor Location
Ref. No. Location
D1 I3
D2 I3
D3 I3
D4 I3
2
D5 E3
D12 E3
D13 D5
D14 C5
D15 H2
D17 F5
D18 E5
IC6 C4
IC7 C4
3
To AMP (F)
CA4
4
To AMP (E)
CA3
5
6
7
40
C D
(Lead Type Device)
POWER (A) P. C. B.
To AMP (D)
CA1
+12V
GND
-12V
+B1
AMPG
-B1
– ~ ~ +
E F
POWER (B) P. C. B.
To
AMP (C)
CA2
– ~ ~ +
41
G H
(Lead Type Device)
To
AMP (E)
From
AC Power Cord
I J
CA3