Casio CTK-530 - page 12

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JCM617T-KY1M/KY2M

Contents

Main CONTENTS SPECIFICATIONS GENERAL ELECTRICAL 3 BLOCK DIAGRAM CIRCUIT DESCRIPTION KEY MATRIX Note: Each key has two contacts, the first conatct (1) and second contact (2). NOMENCLATURE OF KEYS RESET CIRCUIT CPU (LSI101: UPD912GF-3BA) DAC (IC103: UPD6379GR) Filter Block From DAC To power amplifier POWER SUPPLY CIRCUIT FILTER BLOCK POWER AMPLIFIER (IC102: LA4598) LED DRIVING 1 2 3 4 5 6 7 8 9 C D MAJOR WAVEFORMS Page SCHEMATIC DIAGRAMS JCM460-MA1M Page EXPLODED VIEW Page Page Description of Capacitors Description of Resistors