Troubleshooting - NORAUTO PRF-750 Manual De Instrucciones

What appears to be trouble is not always serious. Please check the following points before calling
a service center.
Problem
Unit can not power on
Remote control does not work
No/low audio output
Poor sound quality or
distortion
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

Troubleshooting

Cause
General
Unit fuse blown.
Car battery fuse blown.
Illegal operation
Battery depleted.
Battery installed incorrectly.
Improper audio output connection.
Volume set too low.
Speakers damaged.
Heavily biased volume balance.
Speaker wiring is in contact with metal part of car.
Pirated disc is in use.
Speaker power rating does not match unit.
Wrong connections.
Speaker is shorted.
Incorrect connection between ACC and BATT.
TFT monitor
Parking break wiring is not 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.
PBC is not available on the disc.
PBC is on.
Error messages
Disc is dirty.
Disc is upside down.
No disc inside.
Disc is dirty.
Disc is upside down.
Disc format is not compatible with this unit.
DVD region code is not compatible with
this unit.
EN-24
Corrective action
Install new fuse with correct rating.
Install new fuse with correct rating.
Reset the unit.
Change the battery.
Install the battery correctly.
Check wiring and correct.
Increase volume level.
Replace speakers.
Adjust the channel balance to center
position.
Insulate all speaker wiring connections.
Use original disc.
Replace speakers.
Check wiring and correct.
Check wiring and correct.
Check wiring and correct.
Check wiring and correct.
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.
Use disc with PBC available.
Turn PBC off.
Clean disc with soft cloth.
Insert disc with label side up.
Insert disc.
Clean disc with soft cloth.
Insert disc with label side up.
Use disc with compatible format.
Use disc with compatible region
code.