Diagnostic Program - Casio AP-38 Service Manual

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Table of Contents

Initial Setup

1. Connect an AC adaptor.

2. Connect a Sustain pedal.

3. Connect a MIDI cable (In-Out).

4. "Main" volume: MAX.

5. Turn the BRILLIANCE knob to the center.

6. Have the headphones ready.

NOTE: If there is no pedal or MIDI cable, pedal or MIDI check can be skipped.

How to start diagnostic program

1. Press the "POWER" button while pressing the "CHORUS key" and "GRAND PIANO1 key" buttons.

2. Release the "CHORUS" key and the "GRAND PIANO1" key.

All the LEDs turn on once.

Diagnostic program

1. RAM/ROM check

1 RAM/ROM check starts automatically after the diagnostic program is booted.

2 A confirmation tone of C4, E4 and G4 sounds after ROM/RAM check normally ends.

2. LED check

1 The following groups of 9 LEDs turn on one after another.

GROUP1:

REVERB, CHORUS, GRAND PIANO1, GRAND PIANO2, ELEC PIANO1,

HARPSICHORD, PIPE ORGAN1, STRINGS1, CHIOR

GROUP2:

ACOUSTIC BASS, VARIATION, SPLIT, SONG MEMORY, RECORD, TRACK A,

TRACK B, MUSIC LIBRARY, METRONOME

2 Press "CONTROL" button.

A confirmation tone of C4, E4 and G4 sounds.

3. SLIDER check

1 "PIPE ORGAN1" LED turns on.

2 Select "MELLOW".

3 "GRAND PIANO 1" LED turns on.

4 Select "BRIGHT"

5 "VARIATION" LED turns on.

6 Turn the "BRILLIANCE" knob to the center.

7 Press "CONTROL" button.

A confirmation tone of C4, E4 and G4 sounds.

4. SWITCH check

1 Press "CONTROL" button.