Reference; Troubleshooting - Casio CTK-1500 User Manual

Reference

Troubleshooting

Symptom
Included Accessories
I can't find something that should be here.
Power Requirements
Power will not turned on.
The Digital Keyboard outputs a loud sound and then
suddenly powers down.
The Digital Keyboard suddenly powers down after
30 minutes.
Display
The display keeps going out or are flashing.
On-screen keyboard keys or notes remain on the
display.
Screen contents are visible only from straight ahead. This is dues to production limitations. It does not indicate
Sound
Nothing happens when I press any keyboard key.
Nothing happens or notes do not play normally
when I play notes on the left side of the keyboard.
Nothing happens when I start an Auto
Accompaniment.
Nothing happens when I start playback of a built-in
song.
Notes keep sounding, without stopping.
Some notes are cut off while they are playing.
The volume or tone setting I made has changed.
EN-18
Action
Carefully check inside all of the packing materials.
• Check the AC adaptor or make sure that the batteries are facing
correctly (page EN-7).
• Replace the batteries with new ones or switch over to AC adaptor
power (page EN-7).
Replace the batteries with new ones or switch over to AC adaptor
power (page EN-7).
This happens when Auto Power Off (page EN-4) is triggered.
Replace the batteries with new ones or switch over to AC adaptor
power (page EN-7).
A Lesson Lite is in progress and the Digital Keyboard is waiting for
you to play the next note in the song. To stop this from happening,
cancel the lesson (page EN-14).
malfunction.
• Adjust the main volume setting (page EN-8).
• Check if something is plugged into the PHONES/OUTPUT jack
(cm) on the back of the Digital Keyboard.
• Turn power off and then back on to initialize all Digital Keyboard
settings (page EN-8).
Press 5 ACCOMP to disable chord input in the accompaniment
keyboard area (page EN-15).
• With rhythms 69 and 70, nothing will sound if you do not play a
chord on the keyboard. Try playing a chord (page EN-16).
• Check and adjust the accompaniment volume setting (page EN-17).
• Turn power off and then back on to initialize all Digital Keyboard
settings (page EN-8).
• It takes a little time after you press the button until the song starts
to play. Wait for a moment for the song to start.
• Check and adjust the song volume (page EN-13).
• Turn power off and then back on to initialize all Digital Keyboard
settings (page EN-8).
• Turn power off and then back on to initialize all Digital Keyboard
settings (page EN-8).
• Replace the batteries with new ones or switch over to AC adaptor
power (page EN-7).
Notes are cut off whenever the number of notes being sounded
exceeds the maximum polyphony value of 32 (16 for some tones).
This does not indicate malfunction.
• Adjust the main volume setting (page EN-8).
• Turn power off and then back on to initialize all Digital Keyboard
settings (page EN-8).
• Replace the batteries with new ones or switch over to AC adaptor
power (page EN-7).