| Troubleshooting |
| Symptom Charts/Audio - 7 |
Crackling noise is | 1 | If static noise varies while adjusting volume with Sound | |
present when |
| control panel, use Audio Volume Extension 1.1 or later. | |
playing sounds other |
| Note: Audio Volume Extension is available from standard | |
than system beeps | 2 | Apple software update sites. | |
and not in “play | Replace logic board. | ||
through” mode |
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