How to troubleshoot no sound on Casio CTK-591?
- DDr. Justin ShawAug 16, 2025
If your Casio Electronic Keyboard produces no sound, several factors could be at play. First, ensure the AC adapter is correctly attached, batteries are properly installed with correct polarity (+/–) and are not depleted. Next, verify that the power is on. Also, the volume might be too low, so adjust it accordingly. If the MODE switch is set to CASIO CHORD or FINGERED, switch it to NORMAL. Ensure that LOCAL CONTROL is turned on, and adjust the VOLUME and EXPRESSION parameters if MIDI data has altered them.