Yamaha ACU16-C Service Manual page 45

R Q P O
ACU16-C OVERALL CIRCUIT DIAGRAM 1/10 (MAIN)
MAIN
EEPROM
to C1: H11
to C2: G8
: not installed (未実装)
未実装
ACU16-C
N M L K
CPU
3-8 DEMULTIPLEXER
3-8 DEMULTIPLEXER
J I H G
D-FF
to C2: K4
FLASH ROM 4M
OR
to C5: E11
to C1: H12, to C3: N2
to C2: K6, to C2: P3,
to C5: E11
from C2: P4
from C2: P4
from C2: K5 to C3: N5
to C2: G8
from C2: G8
to C3: K9 to C2: K6, to C2: P3
from C3: J10
from C3: J11
D-FF
to C5: E11 OR
OR
from C1: P4
to C2: P4
OR
to C2: K6
to C1: K2
to C1: J8
OR
F E D C
D-FF
to C3: E3
to C5: O6
to C2: P4
to C4: C4, to C5: E11
to C2: K3
to C4: J8
DRAM16M
OR
AND
OR
BUFFER
OR
TE12L
to C3: E2
TE12L
to C3: B7
to C3: D7
D-FF
to C3: K9
to C3: E2
to C3: J11
to C3: K9
B A
ACU16-C
1
2
3
4
5
6
7
8
9
to C3: D9
10
11
12
ACU16-C
C1
13