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Casio CTK-220L manual LED PCB KDM446-LD1M

Models: CTK-220L

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LED PCB KDM446-LD1M

LED PCB KDM446-LD1M

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Casio CTK-220L manual LED PCB KDM446-LD1M

Contents

ELECTRONIC KEYBOARD CTK-220L20 SONG BANK KEYBOARD MULTI FUNCTION DISPLAYSpecifications CONTENTSBlock Diagram Schematic DiagramsGENERAL SPECIFICATIONSELECTRICAL Reset IC IC1 BLOCK DIAGRAMPower Supply Circuit IC301KEY MATRIX CIRCUIT DESCRIPTIONLED MATRIX NOMENCLATURE OF KEYSPin No CPU LSI1 MSM6755B-13In/Out FunctionFILTER BLOCK POWER AMPLIFIER IC301 LA4598LED DRIVING MWEBMAJOR WAVEFORMS Sub PCB KDM445-MA2M PRINTED CIRCUIT BOARDSMain PCB JCM446-MA1M Top viewMain PCB JCM446-MA1M SCHEMATIC DIAGRAMSNO USE FOR CTK-330 NO USE FOR CTK-330Sub PCBs KDM445-MA2M/MA3M Keyboard PCBs KDM4910K-KY1M/KY2M LED PCB KDM446-LD1M PCB NAME LED PCB KDM445-LD2MLED PCB KDM445-LD4M LED PCB KDM446-LD3MPCB NAME PCB NAMER-1 R-2 EXPLODED VIEWR-3 R-4 CTK-220L PARTS LISTCode No SpecificationParts Name Main PCBNov MA1100761A