2. Operating System and Equipment
2.6.8 Pre-maintenance
Inspection
When you think that some functions in the audio system are failure, before sending for maintenance, please read carefully the operation instructions in the Manual,
and then check according to the following table to be conducive to eliminate the fault. If the fault still exists, please go to GAC MOTOR dealer for servicing. Do not
disassemble the machine for maintenance arbitrarily.
Phenomenon
Possible Causes and Solutions
The head unit does not work, without display.
Check the fuses of head unit and car.
The head unit works, but there is no voice or small voice.
Turn up the volume.
Check the FAD and BAL settings of speaker.
Check the antenna and joint.
The machine body has gentle heating.
The radio heats normally during working.
The reception effect of radio is poor.
Check whether the antenna is extended fully and whether the connections are
correct.
Check whether the antenna amplifier in the car is damaged.
The required station has too weak signal. Please use manual tuning.
USB cannot be read.
Replace the USB disk to try and carry out troubleshooting diagnosis.
Some audio files cannot be played.
Please make sure that the file is MP3 or WMA file. This machine is incompatible
with the audio files except MP3 or WMA format.
The volume is changing during play of MP3 songs.
As the MP3 songs have extensive sources, without unified standard, it's probably
caused by the different volume settings during compression of MP3 songs.
Intermittent pause occurs during music play.
It may be caused by different formats during compression of songs.
160
