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I Initial Setup
1. Connect an AC adaptor.
2. "MODE" switch: OFF
3. "VOLUME": MAX.
I How to start diagnostic program
1. Press and hold "0" and "START/STOP" buttons.
2. "POWER/MODE" switch "NORMAL"
3. The massage "662 TEST" is appears on LCD.
4. Release "0" and "START/STOP" buttons.
I Diagnostic program
1. MODE Switch check
1 Set to "CASIO CHORD" position.
2 Set to "FINGERED" position.
3 Set to "NORMAL" position.
2. ROM check
1 Press "2" button.
* Confirmation sound sounds.
DIAGNOSTIC PROGRAM
— 6 —
Message on LCD
CASIO
FINGER
NORMAL
ROM TEST
ROM OK
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