Gate and Sustain time Control
G
4
Circuit Diagram
SS-30 (S/ #
l00 l
~ )
Divider
Master
OSC
Divider
Master
OSC
RA-G
1
-DE(
3
)
RA-G4--26(3)
RA-G
3
--9(
60
)
RA-G3--26(61)
RA-G2--26(61)
RA-
G3-DE(5 )
Master Clock OSC
DE(5)
-26(3)
-9(60)
-26(61)
I
1(15)
RA-G
4
-
0(1
4
)
RA-G
2
-
I
1(
15
)
14(17)
RA-G3-
0(
14
)
I2(2
7
)
24(26)
RA-G
2
- I2(
2
7)
RA-LF-VI(70)
PC(.9)
(14)
0
(73)8
U
RA-F-U
7
(7
5
)
(74)8L
RA-F-U
6
(7
4
)
(124)16U
RA-F-U
6
L(8
4
)
(123)16L
-15V Regulator
-
7.5
V Regulator
ATTACK SLOW-OFF
SUSTAIN -
-
MIN
C
6
Key
f= 5
0
0KHZ
f= 5
0
0KHZ
f= 5
0
0KHZ
f= 250KHZ
f=
125
KHZ
f=
125
KHZ
f= 6.3HZ
C#0
(48')
D0
(62')
D#0
(60')
F0
(45')
F#0
(57')
E0
(55')
G0
(43')
G#0
(40')
A0
(52')
A#0
(50')
B0
(38')
C1
(36')
C#1
(21')
(7')
D1
D1
(9')
E1
(24'
F1
(12')
F#1
(14')
G1
(26')
G#1
(28')
A1
(
16')
A#1
(19')
B1
(31')
C2
(33')
K4
-D1(26)
K4-
D2(24)
K4
-D3(22)
K4
-D4(20)
K4
-D5(18)
K4
-D6(16)
K4
-D7(14)
K4
-D8(12)
K4
-D9(10)
K4
-D10(8)
K4
-D11(6)
K4
-D12(4)
Note)
Transistor
1.
Tr1
:
2SA509
Diode
2.
IC
3.
ZD
: 02Z82A
others : IS1555
IC1, 2 : YM25400
IC3~6 : LM3211
. Resistor F mrks: +/-
1%
4.
4
5.
Same numbers are connected in common
-1
8
-
f=
443
KHZ
f=
443
KHZ
TP1
TP2
RA-F-U5L(83)
RA-
G3
-
I1
(
136
)
RA-
G4
-
I1
(
15
)
Tr
2~4
:
2S
C752