Jensen VM9512 Operation Manual - Page 39

VM9512 TROUBLESHOOTING Table 7: Troubleshooting Problem Cause Corrective Action GENERAL Unit will not power on Radio Fuse blown Car battery fuse blown Illegal operation Remote control does not function Battery depleted Battery installed incorrectly No/low audio output Improper audio output connection Volume set too low Improper "MUTE" connection Speakers damaged Heavily biased volume balance Speaker wiring is in contact with metal part of car Poor sound quality or distortion Pirated disc is in use Speaker power rating not compatible with unit Speaker is shorted Tel-Mute malfunction "MUTE" wire is grounded Unit resets itself when engine is off Incorrect connection between ACC and positive battery wire TFT MONITOR Monitor does not open automatically TFT Auto Open is turned off No image Incorrect connection to parking brake wire PRK SW is activated and parking brake is not engaged Flashing image or interference appears on screen DVD is not compatible with current TV system settings Improper video signal connections Prolonged image or improper height/width ratio dis- Improper aspect ratio setup play Monitor stops at incorrect position Moving path is blocked TUNER Weak station searching Auto antenna is not fully extended Auto antenna not properly connected LOCAL function is activated Cannot insert disc Disc already inside unit Install new fuse with correct rating Install new fuse with correct rating Press the RESET button located in the bottom right corner of the front panel Replace battery with new one Remove battery and install correctly Check wiring and correct Increase volume level Review wiring diagram and check "MUTE" connection Replace speakers Adjust the channel balance to the center position Insulate all speaker wiring connections Use original copy Connect proper speakers Check speaker contact Check that the "MUTE" connection is not grounded and that it's properly insulated Check wiring and correct Turn TFT Auto Open on Check wiring and correct Stop vehicle in safe place and apply parking brake Change setup to accommodate disc Check wiring and correct Use correct aspect ratio setting Press OPEN key to restart monitor movement Connect the auto antenna control cable properly Connect the auto antenna control cable properly Turn LOCAL function off Eject current disc and insert new one 35