Casio CTK-401 manual Sub PCB JCM442-MA2M

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Sub PCB JCM442-MA2M

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Contents CTK-401 Contents General SpecificationsElectrical Block Diagram KEY Matrix Circuit DescriptionNomenclature of Keys CPU LSI1 MSM6755B-17 Lvcc LCD Driver LSI3 SED1278F0AFilter Block Power Amplifier IC101 TA8248KMain PCB AdjustmentMajor Waveforms Printed Circuit Boards Schematic Diagrams Sub PCB JCM442-MA2M Keyboard PCBs KDM4910K-KY1M/KY2M Segment LCDExploded View Parts List Keyboard PCBs MA0600571A