What to do if JBL speaker won't turn on?
- JJessica GuzmanAug 17, 2025
If your JBL speaker is connected to working AC power but won't turn on, the power cable might be faulty or improperly connected. Try re-seating the power cable at both ends or substitute it with a known-good power cable. If that doesn't work, the fuse may have blown, but there are no user-serviceable fuses, so take your speaker to a competent servicer.