Pcb View And Major Waveforms - Casio PK-5 Service Manual

M3205-MA1M PCB
Clock pulse COSO
MSM6387-03 Pin 9

PCB VIEW and MAJOR WAVEFORMS

1 4
3 2
Key scan signal KO0
MSM6387-03 Pin 30
Key scan signal KO1
MSM6387-03 Pin 29
— 5 —
5
Sound output
MSM6387-03 Pin 5
Tone : Piano
Key : G4
Power Amp. output
AN8053N Pin 1
Tone : Piano
Key : G4
Volume : Max.