Casio CTK-100 Video Game Keyboard User Manual


 
— 6 —
IC AND TRANSISTOR LEAD IDENTIFICATION
T3, T4: 2SC1740SQ T2: 2SD2008Q,R
LA4598
30
29
28
24
27
26
25
23
22
21
20
19
18
17
16
TEST2
TEST1
RESET
GND
AVDD
OUT
AGND
COSI
COSO
VDD
KI0
KI1
KI2
KI3
KI4
1
2
3
7
4
5
6
8
9
10
11
12
13
14
15
KO0
KO1
KO2
KO6
KO3
KO4
KO5
KO7
KO8
KO9
KO10
KO11
KI7
KI6
KI5
BCE
B
C
E
Power GND
Ch1 B.S.
Ch1 OUT
VCC
Ch1 N.F.
Ch1 IN
D.C.
Pre GND
Standby
Ch2 IN
Ch2 N.F.
Ch2 OUT
Ch2 B.S.
1
2
3
4
5
6
7
8
9
10
11
12
13
MSM6387-13