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| Troubleshooting |
| Symptom Charts/ Sound - 53 |
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| Sound | |
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No sound from | 1 | Disconnect any microphones or external speakers. | ||
computer’s internal | 2 | Verify the volume is set appropriately in the Sound system | ||
speaker |
| preference or Sound control panel and mute is not checked. | ||
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| 3 | Mac OS 9: Start up with all |
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| Troubleshoot the extensions. |
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| 4 | Clear parameter RAM. Hold down |
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| during startup until you hear a second startup chime. |
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| 5 | Verify the speaker cable is plugged into the logic board. |
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| 6 | Plug headphones or external speakers into the external jack. |
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| If the external jack works, replace the internal speaker. If |
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| the external jack doesn’t work, replace the logic board. |
