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Musical Instruments & Equipment
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Electronic Keyboard
Casio
CTK-750
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30 pages, 1.71 Mb
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PCB VIEW and MAJOR CHECK POINTS
Contents
Main
CONTENTS
SPECIFICATIONS
General
Electrical
REPLACING THE DSP (HG51A115A01FD)
3
BLOCK DIAGRAM
CIRCUIT DESCRIPTION
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Page
~
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12
13
WIRING DIAGRAM
Red Blue
PR
M615T-KY2M
M615T-KY1M
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Page
Page
SCHEMATIC DIAGRAMS
Main PCB M5712-MA1M
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Page
Page
21
IC LEAD IDENTIFICATION AND INTERNAL DIAGRAM
UPD6376CX
1 2 3
TC74HC04AP M5218APR PC900V
S8053ANO