Casio SK-1 Service Manual

Pin No.
Terminal Name
'
In/Out
1
Function
89
EH Out
{
Melody envelope signal output.
90 EG
Out
1
Melody or obbligato envelope signal output.
91 EF Out Melody
or
chord envelope signal output.
92 EE
i
Out Melody or bass envelope signal output.
93
!
SH
Out
1
Melody
pitch signal
output.
94
'
SQ
Out
'
Melody or obbligato pitch signal output.
95
SF Out
Melody or chord pitch signal output.
^
96
*
I
SE
Out Melody or bass pitch signal output.
SC
;
Out
i—
Analog percussion signal output.
,
1
98
•
AGNO
1
Ground
(OVI
source for
DAC
(Digital to Analog Converter).
99 VDAC
i
—
5V source for DAC.
j
Vin
r’
1 1
^Sample sound signal irtput.
Note: Since this LSI
functions as negative l
09
ic, OV is provided to VDD1 terminal while
*^5V
source
is appiied to GND terminal.
Keyboard Matrix
KM
1
KI2 KI3 KI4 KIS
KI6
KI7 KIS
KCO SAMPLING
j
1
LOOP SET
1
I
DEMO
ONE
KEY
PLAY
R
ONE
KEY
PLAY
L
•
KCl
PORTA-
MENTO
HARMO.
;
SYNTH.
ENVELOPE
SELECT
VIBRATO
1
F3
F3#
1
G3
G3#
KC2
MEMORY
!
PLAY 1
,1
RESET
1
1
RHYTHM
;
SELECT
1
'
FILL-IN
A3 A3#
B4
J
C4
KC3
•
•
TEMPOS
1
TEMPO
'
1
DELETE
1
CLEAR
1
i
1
C4#
f
•
1
D4
1
.
J
1
D4# E4
KC4
SAMPLING
SOUND
•
HARMONIC
'
SOUND
11
“
•
1
1
1
1
•
F4
1
•
F4# G4
» -
KC5
1
j
1
w
^ ^ ^
4
1
A4
A4#
:1
64
'
1
:
C5
•KC6
JAZZ
ORGAN
PIPE
ORGAN
1
FLUTE
1
HUMAN
VOICE
C#6 D5
1
D6#
1
1
KC7
SYNTH
DRUMS
TRUMPET
1
BRASS
lENSEMBLE
1
PIANO
'
F5
F5#
t
=5
G5#
KC8 NORMAL SOLO
1 SOLO 2 CHORD
1
A5 A5#
B5 C6
KC9
1
PLAY RECORD
!
1
POWER
OFF

Casio SK-1 Specifications

General

Brand	Casio
Model	SK-1
Category	Electronic Keyboard
Language	English