Boss Audio BVML9384 User Manual - Page 26

Troubleshooting What appears to be a problem is not always serious. Please check the following points before calling a service center. Problem Unit does not power on No/low audio output Poor sound quality or distortion Tel-Mute malfunction Unit resets itself when engine is off Warning information is shown at all times Flashing image or interference appears on screen Cannot insert disc Disc does not play back PBC cannot be used during VCD playback Repeat or search function is invalid during VCD playback No disc Bad disc Unknown disc Region error Cause Corrective action General Unit fuse blown. Install new fuse with correct rating. Car battery fuse blown. Install new fuse with correct rating. Illegal operation Reset the unit. Improper audio output connection. Check wiring and correct. Volume set too low. Increase volume level. Speakers damaged. Replace speakers. Heavily biased volume balance. Adjust the channel balance to center position. Speaker wiring is in contact with metal part of car. Insulate all speaker wiring connections. Pirated disc is in use. Use original disc. Speaker power rating does not match unit. Replace speakers. Wrong connections. Check wiring and correct. Speaker is shorted. Check wiring and correct. MUTE wire is grounded. Check the 'MUTE' wiring and correct. Incorrect connection between ACC and BATT. Check wiring and correct. TFT monitor Parking break wiring is not correct. Check wiring and correct. The color system of DVD disc does not match the monitor. Pirated disc is in use. Video cable damaged. Improper video signal connections. Disc playback A disc is already inside the unit. Disc is warped or scratched. Disc is dirty or wet. Incompatible disc is used. Disc is inserted upside down. Disc region code is not compatible with unit. Adjust the color system of the DVD disc playing back or the monitor in use. Use original disc. Replace cables. Check wiring and correct. Eject current disc and insert new one. Use disc in good condition. Clean disc with soft cloth. Use compatible disc. Insert disc with label side up. Use disc with proper region code. PBC is not available on the disc. Use disc with PBC available. PBC is on. Turn PBC off. Error messages Disc is dirty. Clean disc with soft cloth. Disc is upside down. Insert disc with label side up. No disc inside. Insert disc. Disc is dirty. Clean disc with soft cloth. Disc is upside down. Insert disc with label side up. Disc format is not compatible with this unit. Use disc with compatible format. DVD region code is not compatible with this unit. Use disc with compatible region code. 25