136
Chapter 4
Power On Issue
If the system doesn’t power on, perform the following actions one at a time to correct the problem. Do not
replace a non-defective FRUs:
Computer Shutsdown Intermittently
If the system powers off at intervals, perform the following actions one at a time to correct the problem.
1.
Check the power cable is properly connected to the computer and the electrical outlet.
2.
Remove any extension cables between the computer and the outlet.
3.
Remove any surge protectors between the computer and the electrical outlet. Plug the computer directly
into a known good electrical outlet.
4.
Disconnect the power and open the casing to check the Thermal Unit (see “Thermal Unit Failure” on page
150) 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, see “Online Support Information” on page 215.
Summary of Contents for TravelMate 6493 Series
Page 6: ...VI ...
Page 10: ...X Table of Contents ...
Page 14: ...4 Chapter 1 System Block Diagram ...
Page 38: ...28 Chapter 1 ...
Page 56: ...46 Chapter 2 ...
Page 64: ...54 Chapter 3 7 Remove the 3G cover as shown ...
Page 71: ...Chapter 3 61 8 Press down on the locking catch to release the ODD cover and remove ...
Page 117: ...Chapter 3 107 5 Replace the MIC as shown and secure the cable with the adhesive strips ...
Page 166: ...156 Chapter 4 ...
Page 187: ...Chapter 6 177 ...
Page 220: ...Appendix A 210 ...
Page 226: ...216 Appendix C ...