Printed Circuit Boards - Yamaha PDX-30 Service Manual

A B
PDX-30/PDX-50

■ PRINTED CIRCUIT BOARDS

1
MAIN P.C.B.
(Side A)
2
3
8
5 4
4
5 1
4 3
5
VCC
OUT
FIN
INV
STBY
POINT A XL1 (Pin 9 of IC10)
6
7
18
C D
No replacement part available.
サービス部品供給なし
1
5
1
20 6
IC11
16 10
11
15
14 26
13 27
1 39
IC12
5 8
52 40
4 1
A
No replacement part available.
サービス部品供給なし
• Semiconductor Location
Ref no. Location Ref no. Location
D1 J4 D11
D2 H4 D16
D3 H4 D17
D4 H4 D20
D5 I3 D21
D6 C4 D22
D7 G5 D23
D8 H4 D24
D9 H4 D25
D10 B4 D28
E F
PDX-30
MAIN P.C.B.
(Side B)
No replacement part available.
サービス部品供給なし
Green
Red
POINT B 1 / Pin 5, 2 / Pin 1 of IC9
Ref no. Location Ref no. Location
C4 D29 J4 IC7 G4
E4 D30 J4 IC8 G3
E4 D31 I5 IC9 H5
5 pin 1
G5 D32 I5 IC10 C5
G5 IC1 C4 IC11 C4
G5 IC2 B4 IC12 C5
1 pin 2
G5 IC3 H4 Q1 H4
H4 IC4 C4 Q2 G4
H4 IC5 H4 Q3 I5
J4 IC6 B5 Q4 I5
POWER cable ON
G H I
DRIVER R
CB5
36 25
37 24
IC8
48 13
1 12
8 5
IC3
1 4
1 30
K R A
15 16
1
4 3
5 1
2
B
5 pin 1
1 pin 2
POWER cable OFF POWER cable OFF
J
DRIVER L