Casio CDP-100 Service Manual page 14

4. Headphone check
1 Press "FUNCTION" button.
*The confirmation chord of C4, E4 and G4 sounds.
2 Connect the headphone.
* "CHORUS" LED lights.
3 Remove the headphone.
* "CHORUS" LED is unlit.
4 Connect the tuning meter to the Headphone jack.
* "CHORUS" LED lights.
5 Press A4 key.
* Make sure that the tuning meter is set at 440 ± 2 cents.
6 Remove the tuning meter from the Headphone jack.
* "CHORUS" LED is unlit.
5. MIDI IN/OUT check (If there is no MIDI cable, press FUNCTION button to skip to ROM version check)
1 Press "FUNCTION" button.
*The confirmation chords of C4, E4 and G4 sound.
2 Connect MIDI IN and MIDI OUT terminals with a MIDI cable.
3 Press "A4 KEY" button.
*The confirmation chords of C4, E4 and G4 sound.
6. ROM version check
1 ROM Version is indicated by "REVERB" and "CHORUS" LEDs.
ROM Version: 1 = REVERB: OFF / CHORUS: ON
ROM Version: 2 = REVERB: OFF / CHORUS: FLASH
ROM Version: 3 = REVERB: ON / CHORUS: OFF
ROM Version: 4 = REVERB: ON / CHORUS: ON
ROM Version: 5 = REVERB: ON / CHORUS: FLASH
ROM Version: 6 = REVERB: FLASH / CHORUS: OFF
ROM Version: 7 = REVERB: FLASH / CHORUS: ON
ROM Version: 8 = REVERB: FLASH / CHORUS: FLASH
7. The diagnostic program ends.
1 Press "FUNCTION" button.
*The confirmation chords of C4, E4 and G4 sound twice.
* "REVERB" LED lights.
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