Casio casio electronic keyboard SCHEMATIC DIAGRAMS

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SCHEMATIC DIAGRAMS

Main PCB JCM444-MA1M

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Contents

Main ELECTRONIC KEYBOARD CTK-431 MUSICAL INFORMATION SYSTEM INDEX SONG BANK CONTROLLER E CONTENTS SPECIFICATIONS GENERAL ELECTRICAL BLOCK DIAGRAM CIRCUIT DESCRIPTION KEY MATRIX NOMENCLATURE OF KEYS CPU (LSI1: MSM6755C-17) LCD DRIVER (LSI3: KS0066U-10B) FILTER BLOCK POWER AMPLIFIER (IC101: LA4598) ADJUSTMENT MAIN PCB MAJOR WAVEFORMS PRINTED CIRCUIT BOARDS Main PCB JCM444-MA1M SCHEMATIC DIAGRAMS Main PCB JCM444-MA1M Page Page LCD SegmentCommon EXPLODED VIEW PARTS LIST CTK-431 16