Casio CTK-230 Sep. 2003 manual Block Diagram

Models: CTK-230 Sep. 2003

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Keyboard		Buttons
KI0~KI6	KID0~KID6	KOD8~KOD12

LCD-E LCD-RW LCD-RS

MPU ML6556 IC202

LCD

DB4~DB7

APO

Power Switch

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Image 4

Contents

CTK-230 INDEXHIGH-GRADE KEYBOARD Ver.1 JanCONTENTS SpecificationsBlock Diagram DisassemblyGENERAL SPECIFICATIONSELECTRICAL BLOCK DIAGRAM CIRCUIT DESCRIPTION PRINTED CIRCUIT BOARDS Main PCB CMW277-MAIN JACK PCB CMW277-MA2MDISASSEMBLY 1. Remove the battery cover and then take out the battery2. Remove 7 screws and then the console panel JACK PCB SpeakerDIAGNOSTIC PROGRAM Initial SettingHow to start diagnostic program Diagnostic programDIAGNOSTIC PROGRAM IS FINISHED 6. LCD check7. AC Adaptor check 8. APO checkSCHEMATIC DIAGRAMS Main PCB CMW277-MAIMKeyboard PCBs JCM4911K-KY1M/KY2M EXPLODED VIEW PARTS LIST CTK-230Specification ACCESSORYI t e m Parts codeVer.1 Jan Replacement of the EXPLODED VIEW and PARTS LIST Overseas Service Division6-2, Hon-machi 1-Chome Shibuya-ku, Tokyo 151-8543, Japan