Casio CTK-750 manual Q2 2SD1762E,F Q4 2SB1274, Eb C E, Be C B

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Q2: 2SD1762E,F

Q4: 2SB1274

B C EB C E

Q3, Q5, Q7, Q11/12: 2SC1740SQ

Q1/6: 2SB1240Q,RQ13: 2SA933SQ Q14~21: DTA114TS

E C BE C B

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Contents CTK-750 Contents Specifications GeneralReplacing the DSP HG51A115A01FD ElectricalBlock Diagram UPD6376CXCircuit Description Key MatrixReset Circuit Nomenclature of KeysButton Matrix MidiCPU HD6433298A18P Pin No Terminal In/Out FunctionGate Array UPD65005C-578 Digital Signal Processor HG51A115A01FD Block diagram of DSP and DAC circuit Key Touch LSI HG52E35P Filter Block Power Amplifier LA4620 Power Supply CircuitName Voltage For operation AvddWiring Diagram M5712-CN1MMajor Waveforms Page PCB View and Major Check Points Schematic Diagrams Console PCB M5712-CN1M Keyboard PCBs M615T-KY1M, KY2M Exploded View IC Lead Identification and Internal Diagram S8053ANOM5218APR PC900VQ2 2SD1762E,F Q4 2SB1274 EB C EBe C B Parts List N N FOB Japan Code No Parts Name Specification Yen Unit Price Lower Case Screws MA0300941A