TroubleshootingSymptom Charts/Audio - 6

Audio

Distorted or garbled

Replace analog/video board assembly.

sound from both

 

 

speakers

 

 

Distorted or garbled

1

Replace defective speaker.

sound from one

2

Replace analog/video board assembly.

speaker

 

 

Sound distortion

Replace MPEG board with modified MPEG board. A modified

with MPEG board

board should have a jumper present from U5 Pin 2 to D1 Pin 1.

installed

 

 

No sound output from

1

Check sound source.

speakers

2

Check that speaker cable at connector P601 on analog board

 

3

is plugged in and not defective.

 

Reseat drive bezel and front-panel control board.

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Apple 5280, 5260 manual Audio