Printed Circuit Boards - Yamaha KMA-1080 Service Manual

A B
KMA-1080/KMA-980
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PRINTED CIRCUIT BOARDS

1
DSP (1)
2
3
1 44
176
3
IC17
133
132
89
40 1 40 1
4
21 20 21 20
5 Point q Pin 81 of IC2
6
20
C
(Side A)
(E10A Emulator) (ROM Writer)
CB1
CB5
1
61 90
91
60
45
DGND
IC2 HR_CTRL1
HR_CTRL2
120
31
30
1
88
7 8
IC10
1 14
1 5
7 8
IC11
1 4
1 14
7 8
8 5
1 14
CB2
2
Point w Pin 6 of IC11
D E
5 8
IC8
4 1
28 1
8 1
15 14 5 4
5 8
IC9
4 1
28 1
15 14
1 4 1 4
IC7
IC6
8 5 8 5
FUNCTION (1)
(CB12)
Point e Pin 3 of IC17
F G
4 5
1 8
5 8
IC3
4 1
CB3
FUNCTION (1)
(CB19)
H
(Side A)
DSP (2)
W1B
●
Semiconductor Location
Ref. No. Location
D4 D3
D6 D4
D8 D3
D10 D2
D12 D4
D14 D4
D15 D3
D16 D3
IC2 C3
IC3 F4
IC4 F2
IC5 E2
IC6 E4
IC7 E4
IC8 E2
IC9 E3
IC10 B3
IC11 C4
IC12 C4
IC13 C4
IC14 C3
IC15 D2
IC16 D3
IC17 B3
IC19 A4
IC20 B4