Page 2299 - Foton Workshop Manual - Aumark (BJ1099)

DIAGNOSIS-AUDIO SYSTEM 62-247
TABLE OF MALFUNCTION SYMPTOMS

Using the table below will help you to find the cause of the faults. Serial number shows the
sorting of fault causes possibility. According to the order,heck each part, depending on the
need to change accordingly.

Malfunction Symptoms Possible reason Reference 62

1.Power supply, grounding -
circuit

Stereo unit does not work Chapter 45 audio system - cd
2. Audio control unit failure machine control panel
Replacement
Chapter 45 audio system - cd
1.In silent mode machine control panel
Commissioning

2.Connection speaker line is -
In any mode, the loudspeaker is open circuit
silent Chapt er 45 audio system-
3.The speaker is damaged -loudspeaker assembly ,
replacement

Chapter 45 audio system - cd
4.Audio control unit fault
machine control panel, replacement
1.The setting of audio control Chapter 45 audio system - cd
unit is improper machine control panel, replacement

2.Connection speaker line is -
not firmly connected
In any mode, the tone quality of
loudspeaker is bad 3. The speaker is Chapt er 45 audio system-
malfunctioning or aging -loudspeaker assembly ,
replacement

4.Antenna deformation, Chapter 45 audio system-- antenna
antenna cable is not firmly Assembly,replacement
connected.

Page 2299