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Musical Instruments & Equipment
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Electronic Keyboard
Casio
CTK-401
PRINTED CIRCUIT BOARDS
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19 pages, 1.05 Mb
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PRINTED CIRCUIT BOARDS
Main PCB JCM442-MA1M
Top View
Bottom View
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Contents
Main
ELECTRONIC KEYBOARD
CTK-401
MUSICAL INFORMATION SYSTEM
CTK-401
S
O
CONTENTS
SPECIFICATIONS
GENERAL
ELECTRICAL
BLOCK DIAGRAM
CIRCUIT DESCRIPTION
KEY MATRIX
NOMENCLATURE OF KEYS
CPU (LSI1: MSM6755B-17)
LCD DRIVER (LSI3: SED1278F0A)
FILTER BLOCK
POWER AMPLIFIER (IC101: TA8248K)
ADJUSTMENT
MAIN PCB
MAJOR WAVEFORMS
PRINTED CIRCUIT BOARDS
Page
Page
Page
LCD Segment
Common
EXPLODED VIEW
PARTS LIST
CTK-401