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| Troubleshooting |
| Symptom Charts/Miscellaneous - 38 | |
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| 1 | Verify that Control Panel volume setting is 1 or above. |
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No sound from | |||||
speaker | 2 | Check display cable connection. | |||
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| 3 | Replace display cable. | |
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| 4 | Replace speaker (CPRC/Int’l only). | |
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| 5 | Replace logic board. | |
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| 6 | Return computer to Apple. | |
Note: When replacing the logic board, check that the serial port EMI clip is attached to the bottom of the CPU stiffener. If it is missing, replace the stiffener. On international units, also replace the stiffener if the modem EMI clip is missing. The “CPU Stiffener” topic in Take Apart helps you locate and identify the two EMI clips.
Note: Perform the battery contact alignment procedure when you replace a logic board. (See Additional Procedures “Align Battery Contacts.”
