Yamaha YST-SW800 Service Manual page 13

A
1 PRINTED CIRCUIT BOARD (Foil side)
FROM : MAIN (2)
2
3
4
J, U, C only
5
A, B, G only
6
Point C
V : 50V/div
DC range
0V
7
B
POWER ( 1 ) P. C. B.
D
–B1
E
+B1
A, B, G only
TO : POWER (2)
(Pin 1 of CB201)
H : 10 µsec/div
1 : 1 probe
C D
FROM : MAIN (1)
C
FROM : POWER CORD
Point D (Pin 1 of CB202)
H : 10 µsec/div
V : 10V/div
DC range 1 : 1 probe
0V
E
YST-SW800
12