What to do if my JBL Legend CP100 has no function or display?
- IIan ScottAug 2, 2025
If your JBL Car Receiver isn't displaying anything or functioning, there might be a few reasons: * The vehicle's ignition might be off. Turn the key to the 'on' position or start the vehicle. * There could be an issue with the power/ground wire connections. Verify these connections. * A fuse might be blown. Check the fuse on the back of the receiver and replace it with one of the same rating if needed. * An internal malfunction may have occurred due to interference, noise, or electrical overload. Try turning the ignition key off and then on again.