152
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
166) 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 47).
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 209.
Summary of Contents for Aspire 4930 Series
Page 6: ...VI ...
Page 10: ...X Table of Contents ...
Page 14: ...4 Chapter 1 System Block Diagram ...
Page 48: ...38 Chapter 1 ...
Page 63: ...Chapter 2 53 ...
Page 65: ...Chapter 2 55 ...
Page 66: ...56 Chapter 2 ...
Page 74: ...64 Chapter 3 6 Remove the HDD cover as shown 7 Remove the WLAN cover as shown ...
Page 79: ...Chapter 3 69 5 Remove the HDD from the carrier ...
Page 88: ...78 Chapter 3 Removing the Antenna 1 Remove the Antenna Cables from the securing pins as shown ...
Page 91: ...Chapter 3 81 6 Place the antenna cable as shown to avoid damaging them ...
Page 102: ...92 Chapter 3 13 Remove the Finger Print Reader board from the Upper Cover ...
Page 104: ...94 Chapter 3 13 Remove the Launch Board from the Upper Cover ...
Page 119: ...Chapter 3 109 18 Disconnect the DC IN Cable from the Mainboard ...
Page 121: ...Chapter 3 111 14 Lift the Thermal Module clear of the Mainboard ...
Page 123: ...Chapter 3 113 15 Lift the CPU clear of the Mainboard ...
Page 127: ...Chapter 3 117 14 Remove the HDMI Module as shown ...
Page 130: ...120 Chapter 3 10 Lift up the bezel rightside first and remove it from the LCD Module ...
Page 134: ...124 Chapter 3 11 Lift the Camera Module clear of the LCD Module ...
Page 138: ...128 Chapter 3 12 Remove the LCD brackets by pulling away from the LCD Panel as shown ...
Page 160: ...150 Chapter 3 ...
Page 191: ...Chapter 6 181 ...
Page 214: ...Appendix A 204 ...
Page 218: ...208 Appendix B ...
Page 220: ...210 Appendix C ...