— 7 —
DIGITAL SIGNAL PROCESSOR (LSI1: HG51B227FB)
The DSP receives 16-bit serial sound data from the CPU and adds the selected effect to the sound data using
the effect RAM. Then the DSP provides the sound data to the DAC. The DSP also drives LEDs.
The following table shows the pin functions of LSI1.
.
o
N
n
i
P
l
a
n
i
m
r
e
T
t
u
O
/
n
I
n
o
i
t
c
n
u
F
0
8
,
4
~
1
4
B
P
~
0
B
P
—
.
d
n
u
o
r
g
o
t
d
e
t
c
e
n
n
o
C
.
d
e
s
u
t
o
N
5
O
S
t
u
O
C
A
D
e
h
t
r
o
f
t
u
p
t
u
o
a
t
a
d
d
n
u
o
s
l
a
i
r
e
S
6
O
K
C
W
t
u
O
C
A
D
e
h
t
r
o
f
t
u
p
t
u
o
k
c
o
l
c
d
r
o
W
7
3
D
D
V
n
I
e
c
r
u
o
s
V
5
+
8
T
S
E
T
—
d
e
s
u
t
o
N
9
B
S
E
R
n
I
t
u
p
n
i
l
a
n
g
i
s
t
e
s
e
R
0
1
2
S
S
V
n
I
e
c
r
u
o
s
)
V
0
(
d
n
u
o
r
G
2
1
,
1
1
T
U
O
X
,
N
I
X
t
u
O
/
n
I
t
u
p
t
u
o
/
t
u
p
n
i
k
c
o
l
c
z
H
M
6
1
3
1
I
K
C
W
n
I
U
P
C
e
h
t
m
o
r
f
t
u
p
n
i
k
c
o
l
c
d
r
o
W
4
1
I
S
n
I
U
P
C
e
h
t
m
o
r
f
t
u
p
n
i
a
t
a
d
d
n
u
o
s
l
a
i
r
e
S
5
1
I
K
C
B
n
I
U
P
C
e
h
t
m
o
r
f
t
u
p
n
i
k
c
o
l
c
t
i
B
6
1
C
N
I
S
n
I
t
u
p
n
i
e
s
l
u
p
g
n
i
z
i
n
o
r
h
c
n
y
s
z
H
M
1
7
1
2
D
D
V
n
I
e
c
r
u
o
s
V
5
+
5
2
~
8
1
7
O
I
~
0
O
I
t
u
O
/
n
I
s
u
b
a
t
a
D
6
2
B
E
C
R
t
u
O
M
A
R
e
g
a
r
o
t
s
g
n
i
k
r
o
w
e
h
t
r
o
f
t
u
p
t
u
o
l
a
n
g
i
s
e
l
b
a
n
e
p
i
h
C
7
2
3
S
S
V
n
I
e
c
r
u
o
s
)
V
0
(
d
n
u
o
r
G
8
2
1
D
A
n
I
s
u
b
s
s
e
r
d
d
A
9
2
B
E
O
—
.
d
n
u
o
r
g
o
t
d
e
t
c
e
n
n
o
C
.
d
e
s
u
t
o
N
0
3
B
E
W
n
I
l
a
n
g
i
s
e
l
b
a
n
e
e
t
i
r
W
1
3
3
D
D
V
n
I
e
c
r
u
o
s
V
5
+
2
3
2
E
C
n
I
.
e
v
i
t
c
a
h
g
i
H
.
t
u
p
n
i
l
a
n
g
i
s
e
l
b
a
n
e
p
i
h
C
3
3
0
D
A
n
I
s
u
b
s
s
e
r
d
d
A
4
3
B
1
E
C
n
I
.
e
v
i
t
c
a
w
o
L
.
t
u
p
n
i
l
a
n
g
i
s
e
l
b
a
n
e
p
i
h
C
3
4
,
1
4
~
5
3
7
O
I
E
~
0
O
I
E
t
u
O
/
n
I
M
A
R
t
c
e
f
f
e
e
h
t
r
o
f
s
u
b
a
t
a
D
,
8
4
~
6
4
,
4
4
,
2
4
1
6
,
9
5
~
1
5
4
1
A
E
~
0
A
E
t
u
O
M
A
R
t
c
e
f
f
e
e
h
t
r
o
f
s
u
b
s
s
e
r
d
d
A
5
4
B
E
C
E
t
u
O
M
A
R
t
c
e
f
f
e
e
h
t
r
o
f
t
u
p
t
u
o
l
a
n
g
i
s
e
l
b
a
n
e
p
i
h
C
9
4
B
E
O
E
t
u
O
M
A
R
t
c
e
f
f
e
e
h
t
r
o
f
t
u
p
t
u
o
l
a
n
g
i
s
e
l
b
a
n
e
d
a
e
R
0
5
3
S
S
V
n
I
e
c
r
u
o
s
)
V
0
(
d
n
u
o
r
G
0
6
B
E
W
E
t
u
O
M
A
R
t
c
e
f
f
e
e
h
t
r
o
f
t
u
p
t
u
o
l
a
n
g
i
s
e
l
b
a
n
e
e
t
i
r
W
8
7
,
4
7
,
0
7
,
6
6
,
2
6
2
S
S
V
n
I
e
c
r
u
o
s
d
n
u
o
r
G
9
7
,
5
7
,
1
7
,
7
6
,
3
6
2
D
D
V
n
I
e
c
r
u
o
s
V
5
+
,
9
6
,
8
6
,
5
6
,
4
6
3
7
,
2
7
5
A
P
~
0
A
P
t
u
O
t
u
p
t
u
o
l
a
n
g
i
s
n
a
c
s
n
o
t
t
u
B
7
7
,
6
7
7
/
6
A
P
t
u
O
d
e
s
u
t
o
N
Summary of Contents for CPS-85
Page 13: ...13 SCHEMATIC DIAGRAMS Main PCB JCM423 MA1M 1 2 8 7 6 5 3 4...
Page 14: ...14 Sub PCBs JCM423 MA2M MA3M MA4M 10 9...
Page 15: ...15 Console PCBs JCM423 CN1M CN2 CN3M...
Page 16: ...16 Keyboard PCB JCM886T KY1M...
Page 17: ...17 Keyboard PCB JCM886T KY2M...
Page 18: ...18 Keyboard PCB JCM886T KY3M...
Page 20: ...20 35 33 35 31 30 34 32 SP 2...
Page 24: ...8 11 10 Nishi Shinjuku Shinjuku ku Tokyo 160 Japan Telephone 03 3347 4926 MA0700571A...
