July 2005
Intermediate to advanced
768 pages
13h 12m
English
Content preview from Apple Training Series: Desktop and Portable Systems, Second Edition
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No Video
1. | Reset parameter random-access memory (PRAM). Hold down Command-Option-P-R during startup until you hear the startup sound twice. |
2. | The system software could be damaged. Start up from the system CD that came with the computer. |
3. | Remove the user access door. |
4. | Touch a metal surface inside the computer. |
5. | Disconnect the AC power cord. Press the PMU reset button on the logic board. Refer to “Resetting the PMU on the Logic Board,” earlier in this lesson. |
6. | Check for external video. Connect an external monitor to the video out port and start up the system again. Did you get external video?
Yes: Replace the display/analog assembly.
No: Replace the main logic board. |
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