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