Casio CTK-591 Service Manual page 17

5. Sound check
1 Press the "4" button to enter "Sound check".
* When standing in the center, the judge hears the minimum test sound in an equal volume
from both right and left speakers.
2 Press the "5" button.
* When standing in the center, the judge hears the medium test sound in an equal volume
from both right and left speakers.
3 Press the "6" button.
* When standing in the center, the judge hears the maximum test sound in an equal vol-
ume from both right and left speakers.
4 Press the "7" button.
* When standing in the center, the judge hears the maximum test sound fromthe left speaker.
5 Press the "8" button.
* When standing in the center, the judge hears the maximum test sound from the right speaker.
6. MIDI check (If there is no MIDI cable, this check can be skipped)
1 Press "9" button to enter "MIDI check".
7. LCD check
1 Press the "STEP1" button to enter "LCD check".
* All dots and characters of LCD turn on.
* There is no lack of the dot and the charater.
8. Corsor LED check
1 Press the "SPEAK" button to enter "Corsor LED".
* Keyboard LED must light in the undermentioned order.
1) PIANO BANK + RHYHTM CONTROLLER
2) SONG BANK + RHYHTM CONTROLLER
3) SING ALONG + RHYHTM CONTROLLER
4) SONG/PIANO BANK CONTROLLER
5) RHYHTM CONTROLLER
9. APO check
1 Press the "PRACTICE PHRASE" button.
* Go out from TEST mode (Power off).
* The LCD turns off.
DIAGNOSTIC PROGRAM IS FINISHED.
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Message on LCD
DP3: MIN
DP3: MID
DP3: MAX
DP3: L
DP3: R
DP3: DOK