Reference; Troubleshooting - Casio LK-280 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 a
few minutes.
Display
If I don't play anything for a few minutes, keyboard
keys suddenly start flashing. Things return to normal
after I press a keyboard key or a button.
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 malfunction.
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.
The metronome does not sound.
Action
Carefully check inside all of the packing materials.
• Check the AC adaptor or make sure that the batteries are facing
correctly (page E-9).
• Replace the batteries with new ones or switch over to AC adaptor
power (page E-9).
Replace the batteries with new ones or switch over to AC adaptor
power (page E-9).
This happens when Auto Power Off (page E-10) is triggered.
Turn off the power on alert feature (page E-10).
Replace the batteries with new ones or switch over to AC adaptor
power (page E-9).
A Step Up Lesson 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 E-32).
• Adjust the volume setting (page E-10).
• Check if something is plugged into
Keyboard.
• If there is no sampled sound in memory, nothing will play if you
press a keyboard key while a tone in the range of 601 to 608 is
selected (page E-19).
• Turn power off and then back on to initialize all Digital Keyboard
settings (page E-10).
bl
Press to disable chord input in the accompaniment keyboard area
(page E-38).
• With rhythms 171 to 180, nothing will sound until you play a chord
on the keyboard. Try playing a chord (page E-38).
• Check and adjust the accompaniment volume setting (page E-41).
• Turn power off and then back on to initialize all Digital Keyboard
settings (page E-10).
• 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 E-28).
• If there is no user song stored in memory, song playback will not
bk
start when you press
selected (page E-29).
• Turn power off and then back on to initialize all Digital Keyboard
settings (page E-10).
• Check and adjust the accompaniment volume setting (page E-41).
• Check and adjust the song volume (page E-28).
• Turn power off and then back on to initialize all Digital Keyboard
settings (page E-10).
ep
on the back of the Digital
while a song in the range of 153 to 162 is
E-63