2
A
B
C
D
E
F
G
H
I
J
1
3
4
5
7
AV-S77
6
POWER (A) P. C. B.
(Lead Type Device)
POWER (B) P. C. B.
(Lead Type Device)
-B1
AMPG
+B1
-12V
GND
+12V
To
AMP (C)
CA2
SP-SW
-
+B2
VPR
T
-12V
GND
+12V
AMPG
-B2
To AMP (D)
CA1
To AMP (E)
CA3
To AMP (F)
CA4
From
AC Power Cord
Blue
Bro
w
n
~
~
+
–
~
~
+
–
To
AMP (E)
CA3
40
■
NX-SW77 PRINTED CIRCUIT BOARD (Component side)
41
Ref. No.
Location
D1
I3
D2
I3
D3
I3
D4
I3
D5
E3
D12
E3
D13
D5
D14
C5
D15
H2
D17
F5
D18
E5
IC6
C4
IC7
C4
• Semiconductor Location