A
B
C
D
E
F
G
H
1
2
3
4
5
6
AV-S70/NX-SW70
■
AV-S70 PRINTED CIRCUIT BOARD
AMP ( B ) P. C. B.
(Component side)
FR
OM :
SPEAKER L
FR
OM :
SPEAKER R
FR
OM :
AMP (A)
FROM : AMP (C)
L
–
CH
GNDR
MUTE
R
–
CH
AMP
–
PR
T
SP
–
RY
R-OUT-GND
–V
POWER–GND
+V
L–OUT–GND
GNDB
–15V
+15V
TruBass
AMP ( B ) P. C. B.
(Foil side)
AMP ( C ) P. C. B.
(Component side)
SW
OUTPUT
SYSTEM
CONECTOR
+15V
–15-V
MUTE
+15V
–15V
SP–RY
SW–PRT
PRE–OUT
TruBass
AMP–PRT
B–BST
NIGHT
L
RL
R
G
RR
SW
G
RE
RE
T
O
:
AMP (B)
FR
OM :
AMP (A)
AMP ( C ) P. C. B.
(Foil side)
28
29
Ref. No.
Location
D501
B3
Ref. No.
Location
IC501
B2
IC502
B3
IC503
A2
●
Semiconductor Location
Ref. No.
Location
Q501
A4
Q502
B4
Q503
B4
Q504
B4
Q505
B3
Q506
B2
Ref. No.
Location
D602
E4
D603
E3
Ref. No.
Location
IC601
G3
IC602
G3
IC603
G4
IC604
G4
IC605
G3
●
Semiconductor Location
Ref. No.
Location
Q601
F3
Q602
F3
Q603
E2
Q604
F3
Q606
E4
Q607
E4