— 11 —
MAJOR WAVEFORMS
3
MNI signal
JE connector pin 1
4
APO signal
JC connector pin 12
1
Clock signal for CPU
LSI4 pin 15
2
Clock signal for CPU
LSI4 pin 16
5
Key common signal KC0
JB connector pin 1
6
Key common signal KC1
JB connector pin 2
7
CE signal for ROM
LSI3 LH536PYE pin 12
8
CE signal for working RAM
LSI1 TC55257DFL pin 20
9
@
9
Sound signal (L)
JF connector pin 3
@
Sound signal (R)
JF connector pin 4
Tone : Grand Piano
Volume : Maximum
Touch speed : Maximum
Key : A4
2
5
6
1
3
4
7
8
Summary of Contents for CTK-573
Page 14: ...13 Sub PCB JCM702 MA2M Top View 9 10...
Page 15: ...14 JCM702 CN1MA Top View Bottom View JCM702 CN2MA Top View Bottom View...
Page 16: ...15 SCHEMATIC DIAGRAMS Main PCB JCM702 MA1M 8 7 4 1 2 3 5 6...
Page 17: ...16 Sub PCB JCM702 MA2M 9 10...
Page 18: ...17 Console PCB JCM702 CN1M CN2M...
Page 19: ...18 Display PCB JCM702 LCD1M...
