Service manual

6-6
Chapter 6
Yes
No
No
No audio or distored audio from the speaker.
No audio from the speaker
Make sure cables are good.
Audio is distoyed
Problem resolved
No audio from the speaker.
Yes
No
Connect a known good 16 ohms speaker
in place of the existing speaker.
Replace the speaker
Check the speaker resistance.
Problem resolved
Yes
Replace the Main board.
No
Yes
No
Verify that audio signal source and cables are good.
Problem resolved
Yes
Connect a known good 16 ohms speaker in the place of the existing speaker.
Problem resolved
Audio sounds scratchy or distored.
Replace the Main board.
Troubleshootin
g
Audio Problems
Is audio OK?
Does it measure around 16 ohms?
Is audio OK?
Sound good?
Sound good?
What is the problem?