Yamaha YSP-1 Service Manual page 48

A B
YSP-1
1
I PRINTED CIRCUIT BOARD (Foil side)
INPUT (5) P.C.B. (Side A)
2
3
AGMD
+15V
+5V
+3.3V
NC
GND
S3.3
S3.3BK
RESET
PW_DOWN
POW_RY
INPUT
CB4
4
5
6
7
48
C D
INPUT (2)
W3
GND
GND
GND
GND
+15V
+15V
+15V
+15V
IN COM OUT
IN
OUT
COM
W1
1 9
SWITCHING
POWER SUPPLY UNIT
E F
SWITCHING
POWER SUPPLY UNIT
G H I
Ref No. Location
D11 E5
D12 E5
D13 E5
IC5 E5
IC6 D4
IC40 C5
Q16 E6
J
AC IN