How to fix changed volume or tone on Casio Casiotone CT-S400?
- TTiffany StricklandAug 21, 2025
If the volume level or tone setting on your Casio Synthesizer has changed unexpectedly, you should first adjust the volume level. If that doesn't work, try turning the synthesizer off and then back on to reset the settings. You can also try replacing the batteries or using an AC adapter.