|
Symptom
|
Repair
order
|
No power
coming in. (No display and no sound from speakers)
|
|
1.
|
Check the
fuse and power supply for audio.
|
|
2.
|
Check the audio ground.
|
|
3.
|
Remove the audio and repair it.
|
|
A specific
speaker does not operate.
|
|
2.
|
Check the output circuit between audio and speaker.
|
|
Audio generates
noise with engine running.
|
|
1.
|
Check the
audio ground.
|
|
3.
|
Check the ignition coil.
|
|
4.
|
Remove the audio and repair it.
|
|
AM and
FM modes are weak or noisy.
|
|
2.
|
Check the antenna amplifier.
|
|
3.
|
Check the noise suppressor.
|
|
4.
|
Check the audio ground.
|
|
5.
|
Remove the audio and repair it.
|
|
