Casio CTK-220L manual Schematic Diagrams

Page 10

SCHEMATIC DIAGRAMS

Main PCB JCM446-MA1M

2 1 3

5 4

Note: KI signals are renamed. (e.g. KI0 on the keyboard PCB KI1 on the main PCB)

KDM4910K-KY2M

NO USE FOR CTK-330

NO USE FOR CTK-330

Connected to

 

 

-LD2M

CTK-330

KDM445

NO USE FOR

Connected to

 

7

6

— 8 —

Image 10
Contents CTK-220L Contents Specifications GeneralBlock Diagram CPU LSI1Circuit Description KEY MatrixCPU LSI1 MSM6755B-13 Filter Block Major Waveforms Printed Circuit Boards Sub PCB KDM445-MA2MSchematic Diagrams Sub PCBs KDM445-MA2M/MA3M Keyboard PCBs KDM4910K-KY1M/KY2M LED PCB KDM446-LD1M LED PCB KDM445-LD2M LED PCB KDM446-LD3M Exploded View Parts List Keyboard PCBs Nov MA1100761A