124
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
138) and fan airways are free of obstructions.
5.
Disable the power management settings in the BIOS to ensure they are not the cause of the problem (see
“Power” on page 33).
6.
Remove all external and non-essential hardware connected to the computer that are not necessary to
boot the computer to the failure point.
7.
Remove any recently installed software.
8.
If the Issue is still not resolved, see “Online Support Information” on page 179.
Содержание TravelMate 4730 Series
Страница 6: ...VI ...
Страница 10: ...X Table of Contents ...
Страница 14: ...4 Chapter 1 System Block Diagram ...
Страница 34: ...24 Chapter 1 ...
Страница 51: ...Chapter 2 41 3 Reboot the system and key in the selected string qjjg9vy 07yqmjd etc for the BIOS user password ...
Страница 52: ...42 Chapter 2 ...
Страница 60: ...50 Chapter 3 7 Remove the WLAN cover as shown ...
Страница 95: ...Chapter 3 85 7 Lift the Thermal Module clear of the Mainboard ...
Страница 114: ...104 Chapter 3 3 Connect the RJ 11 cable to the modem module as shown ...
Страница 118: ...108 Chapter 3 2 Replace the two securing screws ...
Страница 122: ...112 Chapter 3 2 Connect the seven cables on the mainboard as shown B C D E F G A ...
Страница 128: ...118 Chapter 3 3 Turn the computer over and replace the five securing screws ...
Страница 175: ...Chapter 6 165 ...
Страница 184: ...Appendix A 174 ...
Страница 188: ...178 Appendix B ...
Страница 190: ...180 Appendix C ...
Страница 193: ...183 Wireless Function Failure 136 WLAN Board 52 ...
Страница 194: ...184 ...