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GX-1
(S/#
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(1st decay)
To terminal V
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:
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Reverb Pick Up Amp for SK
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Amp for SK
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+15O-
Envelope Generator
for Solo Pitch
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SK Signal Preamp.
SK Signal
UK | and
UK
LK | and
LK
UK and
PK
Preamp
11 Channel
Signal
|| Channel
Signal
LK Reverb
Signal
Signal
Preamp
Signal
Preamp
Signa! Pick
Preamp.
Preamp
Preamp.
Up Amp.
Transistor
5,
Ceramic Capacitor
Tr1™11,13™18,20:
2SC458(C)
K mark
1000P
(K)
Tr12,19
: 2SC458LG(P)
or
VBE
220P
. FET12
: 2SK30(Y)
3300P
fer
: ADO042
. Resistor F marked
: metalfilm resistor
tg
MR25+2%
1C1
: AN374
- Variable resistor
: Sa214H
1c2"16
: BA301
Low
: 2SK30A
(Y)
Rey
ae
: TA7504M
.
Diode
D1~D2
: 182473(VE)
KEC-3256-46
STR
(2nd decay)
(12)VC1 O=
Key
on
Signa!
(13 )vc2
100K
(Solo Key Transformation
and Reverb)
Circuit Diagram
Ladder Voltage Converter for Portamento
(Linear to Logarithm)
©100K
| ©100K
Tr
PairTr 12
———--———+
F 20K
LY]
6
H—O
£0(10)
Output
(2.00 ~0.25 V)
Dalington connection for increasing
the input impedance of the 1C12
PairFet
oe
Lee?
es)
5 Ps
=-
S258
-
-
©F ex 1
5 sb
VR8
SE
Sample hold circuit for
solo key voltage.
Conversion from Linear Voltage to Logarithm Voltage
Ri
PairTr19
nr
th!
(3.00 ~oVv)
3 |S
tH
p—O L0(11)
8
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8
1
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=
Sr
t
2
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r
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Tr18
4
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+15 939, 40, 79, 80
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TON
3), Sotto
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