Casio
CTK-750
manual
Console PCB M5712-CN1M
Specifications
Parts list
Block Diagram
Reset Circuit
Power Amplifier LA4620
Page 20
Console PCB
M5712-CN1M
— 18 —
Page 19
Page 21
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Page 19
Page 21
Contents
CTK-750
Contents
Specifications
General
Replacing the DSP HG51A115A01FD
Electrical
Block Diagram
UPD6376CX
Circuit Description
Key Matrix
Reset Circuit
Nomenclature of Keys
Button Matrix
Midi
CPU HD6433298A18P
Pin No Terminal In/Out Function
Gate 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 Circuit
Name Voltage For operation
Avdd
Wiring Diagram
M5712-CN1M
Major 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
S8053ANO
M5218APR
PC900V
Be C B
Q2 2SD1762E,F Q4 2SB1274
EB C E
Parts List
N N
FOB Japan Code No Parts Name Specification Yen Unit Price
Lower Case
Screws
MA0300941A
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