6. TROUBLE SHOOTING
GENERAL
Problem
Unit fuse blown.
Unit can not power
on.
Car battery fuse blown.
Unit can not power
on.
Nothing happens
The microprocessor has
when buttons are
malfunctioned due to noise, etc.
pressed.
Display is not
accurate.
Improper audio output connection. Check wiring and correct.
Volume set too low.
No/low audio
Speakers damaged.
output.
Heavily biased volume balance.
Speaker wiring is in contact with
metal part of car.
Non-standard disc used.
Speaker power rating does not
Poor sound quality
match unit.
or distortion.
Wrong connections.
Speaker is shorted.
Tel-Mute
MUTE wire is grounded.
malfunction
Unit resets itself
Incorrect connection between ACC
when engine is off.
and Battery.
Cause
Replace with new fuse of correct rating.
Replace with new fuse of correct rating.
Turn off the power and remove the DCP.
Press the [RESET] button with a thin rod.
Note:
When the [RESET] button is pressed, turn off
the ACC power.*
* When the [RESET] button is pressed,
frequencies of radio stations, titles, etc. stored in
memory are cleared.
Increase volume level.
Replace speakers.
Adjust the channel balance to center position.
Insulate all speaker wiring connections.
Use a standard disc.
Replace speakers.
Check wiring and correct.
Check wiring and correct.
Check the MUTE wiring and correct.
Check wiring and correct.
Measure
19