How to fix a Casio CTK-720 with no sound?
- RRaymond WatsonAug 12, 2025
If your Casio Electronic Keyboard isn't producing any sound, there could be several reasons: * Check the AC adapter connection, ensure correct battery polarity (+/–), and verify battery life. * Make sure the POWER/MODE switch is set to the NORMAL position. * Adjust the MAIN VOLUME slider to increase the volume. * Confirm that the POWER/MODE switch is not in the CASIO CHORD or FINGERED position; switch it to NORMAL.