Casio casio electronic keyboard manual Overseas Service Division

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CASIO TECHNO CO.,LTD.

Overseas Service Division

Nishi-Shinjuku Kimuraya Bldg. 1F

5-25, Nishi-Shinjuku 7-Chome

Shinjuku-ku, Tokyo 160-0023, Japan

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Contents CTK-431 Contents General SpecificationsElectrical Block Diagram Casio Circuit DescriptionKEY Matrix Nomenclature of KeysDgnd NCOMrdb McsbLCD Driver LSI3 KS0066U-10B VCC Power Amplifier IC101 LA4598Filter Block CPUMain PCB AdjustmentVR1 TP1 Major Waveforms Printed Circuit Boards Schematic Diagrams Sub PCBs JCM444-MA2M/MA3M Keyboard PCBs JCM4911K-KY1M/KY2M Segment LCD Exploded View Parts List Keyboard PCBs Overseas Service Division