Casio CTK-401 - page 12

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SCHEMATIC DIAGRAMS

Main PCB JCM442-MA1M

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1

98

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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