118
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 FRU:
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
130) 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 209.
Start
Check
AC/Battery
Swap AC/Battery
try
NG
OK
Swap M/B
Содержание Aspire 4738
Страница 6: ...VI ...
Страница 10: ...X Table of Contents ...
Страница 102: ...94 Chapter 3 7 Replace the two 2 bezel screws Step Size Quantity Screw Type LCD Bezel Assembly M2 0 5 0 2 ...
Страница 104: ...96 Chapter 3 3 Place the Bluetooth module onto the mainboard 4 Connect the Bluetooth cable to the mainboard connector ...
Страница 109: ...Chapter 3 101 5 Connect the fan cable as shown ...
Страница 123: ...Chapter 3 115 4 Press down as indicated to secure the keyboard in place ...
Страница 146: ...138 Chapter 4 ...
Страница 150: ...142 Chapter 5 Clear CMOS Jumper Item Description J1 J2 Clear CMOS Jumper ...
Страница 152: ...144 Chapter 5 ...
Страница 167: ...Chapter 6 159 ...
Страница 216: ...208 Appendix B ...
Страница 218: ...210 Appendix C ...