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VM9511TS
TROUBLESHOOTING
Table 19: Troubleshooting
Problem Cause Corrective Action
GENERAL
Unit will not power on Radio Fuse blown Install new fuse with correct rating
Car battery fuse blown Install new fuse with correct rating
Illegal operation Press the RESET button located in the bottom right corner of the front panel
Remote control does not function Battery depleted Replace battery with new one
Battery installed incorrectly Remove battery and install correctly
No/low audio output Improper audio output connection Check wiring and correct
Volume set too low Increase volume level
Improper “MUTE” connection Review wiring diagram and check “MUTE” connection
Speakers damaged Replace speakers
Heavily biased volume balance Adjust the channel balance to the center position
Speaker wiring is in contact with metal part of car Insulate all speaker wiring connections
Poor sound quality or distortion Pirated disc is in use Use original copy
Speaker power rating not compatible with unit Connect proper speakers
Speaker is shorted Check speaker contact
Tel-Mute malfunction “MUTE” wire is grounded Check that “MUTE” connection is not grounded and that it’s properly insulated
Unit resets itself when engine is off Incorrect connection between ACC and positive battery
wire
Check wiring and correct
TFT MONITOR
Monitor does not open automatically TFT Auto Open is turned off Turn TFT Auto Open on
No image Incorrect connection to parking brake wire Check wiring and correct
PRK SW is activated and parking brake is not engaged Stop vehicle in safe place and apply parking brake
Flashing image or interference appears on screen DVD is not compatible with current TV system settings Change setup to accommodate disc
Improper video signal connections Check wiring and correct
Prolonged image or improper height/width ratio dis-
play
Improper aspect ratio setup Use correct aspect ratio setting
Monitor stops at incorrect position Moving path is blocked Press OPEN key to restart monitor movement
TUNER
Weak station searching Auto antenna is not fully extended Connect the auto antenna control cable properly
Auto antenna not properly connected Connect the auto antenna control cable properly
LOCAL function is activated Turn LOCAL function off
Cannot insert disc Disc already inside unit Eject current disc and insert new one