JBL MBB2020 Troubleshooting Manual
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JBL MBB2020 Troubleshooting Guide
Prospec Electronics
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1 Wiring
2 Compatible Accessories
3 List of common issues
3.1. No power
3.2. Intermittent Power
3.3. Buttons/controls not responding/erratic controls
3.4. USB issues
3.5. Poor reception or no reception
3.6. No audio, speaker audio is unevenly distributed or some speakers not working
3.7. Low audio
3.8. Fluctuating Audio
3.9 Audio Shoots up when Bluetooth is on
3.10 Moisture in Display
3.11 Bluetooth Won’t Work
4 External Amplifier Issues/Subwoofer Operation
5 Reset Procedure