Power On Issues - Acer Aspire 4739Z Service Manual

Power On Issues

If the system does not power on, perform the following:
Computer Shuts Down Intermittently
If the system powers off at intervals, perform the following.
1. Makes sure the power cable is properly connected to the computer and the electrical
outlet.
2. Remove all extension cables between the computer and the outlet.
3. Remove all surge protectors between the computer and the electrical outlet. Plug the
computer directly into a known serviceable electrical outlet.
4. Disconnect the power and open the casing to check the thermal unit and fan airways
are free of obstructions.
5. Remove all external and non-essential hardware connected to the computer that are
not necessary to boot the computer to the failure point.
6. Remove any recently installed software.
7. If the Issue is still not resolved, refer to
4-4
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Figure 4-1. Power On Issue
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