Printed Circuit Board - Yamaha GX-900 Service Manual

A B
GX-900
PRINTED CIRCUIT BOARD (Foil side)
1
P.C.B. OPERATION(1) (Lead Type Device)
OPEN/ DISC
DISC3 DISC2
CLOSE CHANGE
DGND
KEY0
2
W803
TO: OPERATION(2)
P.C.B. OPERATION(1) (Surface Mount Device)
3
P.C.B. OPERATION(4) (Lead Type Device)
MD EDIT
T T DELETE
4
DIRECTION
A
E E
TAPE
EJECT
TO: OPERATION(3)
P.C.B. OPERATION(4) (Surface Mount Device)
5
78
6
C
DISC1
PAUSE/ENTER
W
MD
EJECT
SW819
DGND
NC
KEY4
W802
D E
P.C.B. OPERATION(2) (Lead Type Device)
T Y
W A
E R
DGND
KEY0
33
32
VOLUME
W803
TO: OPERATION(1)
P.C.B. OPERATION(2) (Surface Mount Device)
79
F G
FROM: INPUT(1)
64
1
H