EN -
12
EN
NOTE:
Immediately turn off the device and disconnect the power adapter if the
device is not working properly. Never try to repair the unit without
authorized professionals for it may damage the unit.
Troubleshooting
Troubleshooting
PROBLEM
POSSIBLE CAUSE
POSSIBLE SOLUTION
There is no
sound.
The volume may be turned
down or mute.
Turn up the volume or turn
on the sound output.
The unit can
receive signals
now but can’t
then; signals
received are not
stable.
The built-in rechargeable
battery is weak.
Use the adaptor to supply
power or charge the
battery.
The unit may be obstructed
by veil, such as heat
insulation paper.
Remove the veil.
Swing of the unit is too
great.
Avoid great swing of the
unit.
Users can’t turn
on the unit.
The adaptor doesn’t
connect well.
Connect the adaptor
correctly.
The built-in rechargeable
battery is weak.
Use the adaptor to supply
power or charge the
battery.
There is no
picture.
The brightness may be
turned down.
Adjust the brightness of the
LCD.
PROBLEM
POSSIBLE CAUSE
POSSIBLE SOLUTION
The unit can’t
receive satellite
signals or can’t
orient.
The unit may be obstructed
by buildings or metal block.
Make sure to use the unit
out of room; if in the
vehicle, you can use the
external GPS antenna to
solve this problem.