Reference; Troubleshooting - Casio LK-190 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
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
While the APP function is being used in the Play
Mode, all keyboard key lights may go out, and on-
screen keyboard keys and chord information may go
blank.
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.
EN-24
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.
Turn off the power on alert feature (page EN-4).
Replace the batteries with new ones or switch over to AC adaptor
power (page EN-7).
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 EN-16).
malfunction.
All keyboard keys and chord information go blank when invalid data
is received. This does not indicate malfunction. Check to make sure
that the app is connected correctly.
• Adjust the main volume setting (page EN-8).
• Check if something is plugged into the PHONES/OUTPUT jack
(dp) on the back of the Digital Keyboard.
• Turn power off and then back on to initialize all Digital Keyboard
settings (page EN-8).
Press bm ACCOMP to disable chord input in the accompaniment
keyboard area (page EN-18).
• With rhythms 096 to 100, nothing will sound until you play a chord
on the keyboard. Try playing a chord (page EN-18).
• Check and adjust the accompaniment volume setting (page EN-19).
• 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-14).
• Turn power off and then back on to initialize all Digital Keyboard
settings (page EN-8).
• Check and adjust the accompaniment volume setting (page EN-4).
• Check and adjust the song volume (page EN-4).
• Check the dance music song volume level (page EN-4) and adjust it
as required.
• Turn power off and then back on to initialize all Digital Keyboard
settings (page EN-8).