Lanzar SDN65BT - Manual (Page 11)

Troubleshooting
Phenomenon Reasons Solutions
Not operating
Fuse of machine power supply and auto
vehicle
Eattery is burnt;
Voltage of power supply is overloaded;
Automatic protection system avoids fault
due to illegal operation
Change for fuse of the correct
types;
Adjust voltage;
Reset the system by pressing
the Reset key
No or low sound Disconnection;
Volume setting is low volume;
Loudspeaker fault
Big deviation of volume balance setting;
Earthing in loudspeaker conection
Check the connection;
increase volume
Adjust the volume balance
setting to middle place;
Keep insulation of
loudspeaker connection
Remote control
doesn’t work
Battery is out of power;
Battery is not placed correctly
Change new battery;
Reinstall battery;
Inferior quality
of sound;
Distortion of
sound
Inferior disc is prohibited;
Loudspeaker does not match impedance
of the machine;
Speaker fault
Use genuine discs;
Change a matched loudspeaker;
Check the connection of
loudspeaker.
Machine reset
by itself when it
is shut down
Connection of ACC and B+ is not correct. Check and reconnect ACC and
B+
No image
Connection of brake wire is not correct;
Not braking state.
Check brake wire and
connect them corerectly;
Keep braking state after the car
is placed safely 
Unstable output
of image
DVD does not correspond with the
present system video setting;
Video signal line is not connected correctly.
Adjust systerm video setting;
Check and replace video signal
line.
Image
stretching or
compressing
Incorrect ratio settings of icons Use correct ratio settings of
icons
Weak signal Auto antenna does not reach out completely
LOC function is under working state.
Connect auto antenna line
correctly
Close LCC function