Av-S70 Printed Circuit Board - Yamaha AV-S70 Service Manual

A
Q Q
3 7 6 3 1 5 1 5 0

AV-S70 PRINTED CIRCUIT BOARD

1
DSP-FL ( A ) P. C. B.
2
3
T E
L 1 3 9 4 2 2 9 6 5 1 3
L
R
C
LFE
RL
RR
4
RIN
LIN
-25
+25
5
Point q (Pin 13 of IC3)
w w w V : 2V/div, H : 0.1 µsec/div
DC, 1 : 1 probe
.
0V
6
B C
(Component side)
DIGITAL DIGITAL
1 2
FROM : DSP–FL (B)
x a o
y
i
http://www.xiaoyu163.com D E
8
1
Q Q
3 7 6 3
Semiconductor Location
Ref. No.
D1
D2
D3
D4
D5
u 1 6 3
D6
D7
D8
.
D9
D10
D11
D12
24
http://www.xiaoyu163.com
F
2 4
9 9 8
DSP-FL ( A ) P. C. B.
(Foil side)
1 5 1 5 0 8 9 2 4
Location Ref. No. Location Ref. No. Location
F2 IC1 C2 Q1 C3
F2 IC2 C2 Q2 C3
m
B4 IC3 C3
B4 IC4 C4
C3 IC6 C3
c o
C3 IC7 C4
C3 IC8 B4
C3 IC9 B3
C3 IC10 B3
C3 IC11 B3
C3 IC12 B3
C3 IC15 C4
IC801 C2
IC802 C2
G H
AV-S70/NX-SW70
2
9 9
9 8 2 9 9
25