How to troubleshoot no sound issue on my JBL MSC1?
- Aandrew26Aug 12, 2025
If you are not getting any sound from your JBL Controller, first confirm that the power cable is connected and the POWER LED is illuminated. Next, ensure a signal source is connected and producing sound, and that the INPUT SELECT switches are set correctly. Also, check that the connected speaker system is powered on and the SPEAKER SELECT switch is set correctly. Make sure the MUTE button is not illuminated, and the VOLUME control is not set fully counter clockwise.