Jensen VM8022 Operation Manual - Page 20

Troubleshooting - problem

Page 20 highlights

TROUBLESHOOTING Problem Does not operate (display does not light) No power to unit No/low audio output Blows fuses No image Flashing image or interference appears on screen Prolonged image or improper height/width ratio display Disc does not play back Image blurred, distorted, or dark Cause Corrective Action No power to yellow wire; no power to red wire Check connection with test light; check vehicle fuse with test light Fuse blown Replace fuse Fuse blown Check/replace fuse Improper audio output connec- Check wiring and correct tion Volume set too low Increase volume level Speakers damaged Replace speakers Heavily biased volume balance Adjust the channel balance to the center position Speaker wiring is in contact with Insulate all speaker wiring connections metal part of car Power wire shorting to ground Make sure wire is not pinched Speaker wires shorting to ground Make sure wire is not pinched Incorrect fuse; fuse too small Install fuse of correct rating Incorrect connection to parking Check Parking SW wiring and correct brake wire Parking SW is connected but Stop vehicle in safe place and apply parking brake is not engaged parking brake DVD is not compatible with cur- Change setup to accommodate disc rent TV system settings Improper video signal connec- Check wiring and correct tions Improper aspect ratio setup Use correct ASPECT RATIO setting Disc is warped or scratched Use disc in good condition Disc is dirty or wet Clean disc with soft cloth Laser pickup is dirty Clean laser pickup with cleaning disc Incompatible disc is used Use compatible disc Disc rating exceeds RATING Change RATING settings to lower limit restriction Disc region code is not compati- Use disc with proper region code ble with unit Disc is inserted upside down Insert disc with label side up Disc is illegally copied Use original disc 16 VM8022

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VM8022
16
TROUBLESHOOTING
Problem
Cause
Corrective Action
Does not operate (dis-
play does not light)
No power to yellow wire; no
power to red wire
Check connection with test light; check
vehicle fuse with test light
Fuse blown
Replace fuse
No power to unit
Fuse blown
Check/replace fuse
No/low audio output
Improper audio output connec-
tion
Check wiring and correct
Volume set too low
Increase volume level
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
Blows fuses
Power wire shorting to ground
Make sure wire is not pinched
Speaker wires shorting to
ground
Make sure wire is not pinched
Incorrect fuse; fuse too small
Install fuse of correct rating
No image
Incorrect connection to parking
brake wire
Check Parking SW wiring and correct
Parking SW is connected but
parking brake is not engaged
Stop vehicle in safe place and apply
parking brake
Flashing image or inter-
ference appears on
screen
DVD is not compatible with cur-
rent TV system settings
Change setup to accommodate disc
Improper video signal connec-
tions
Check wiring and correct
Prolonged image or
improper height/width
ratio display
Improper aspect ratio setup
Use correct ASPECT RATIO setting
Disc does not play back
Disc is warped or scratched
Use disc in good condition
Disc is dirty or wet
Clean disc with soft cloth
Laser pickup is dirty
Clean laser pickup with cleaning disc
Incompatible disc is used
Use compatible disc
Disc rating exceeds RATING
limit
Change RATING settings to lower
restriction
Disc region code is not compati-
ble with unit
Use disc with proper region code
Disc is inserted upside down
Insert disc with label side up
Image blurred, distorted,
or dark
Disc is illegally copied
Use original disc