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

A B

AV-S70 PRINTED CIRCUIT BOARD

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