138
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 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 205.
Summary of Contents for Aspire 4740G
Page 6: ...VI ...
Page 10: ...X Table of Contents ...
Page 56: ...46 Chapter 2 ...
Page 63: ...Chapter 3 53 5 Carefully open the HDD Cover ...
Page 65: ...Chapter 3 55 5 Remove two 2 screws from the WLAN bracket and lift it clear of the device ...
Page 90: ...80 Chapter 3 5 Remove the TouchPad Bracket from the Upper Cover ...
Page 92: ...82 Chapter 3 Step Size Quantity Screw Type Media Board M2 5 3 2 ...
Page 97: ...Chapter 3 87 Step Size Quantity Screw Type Bluetooth Module M2 5 3 1 ...
Page 99: ...Chapter 3 89 7 Lift one edge of the mainboard as shown to remove it from the base ...
Page 107: ...Chapter 3 97 4 Lift the bezel away from the panel ...
Page 110: ...100 Chapter 3 4 Lift the LCD Panel out of the casing as shown ...
Page 117: ...Chapter 3 107 13 Ensure that the securing pin is properly located ...
Page 129: ...Chapter 3 119 ...
Page 134: ...124 Chapter 3 4 Turn the computer over Replace the fifteen screws on the bottom panel ...
Page 141: ...Chapter 3 131 4 Turn the computer over and replace the six 6 securing screws as shown ...
Page 186: ...176 Chapter 6 ...
Page 187: ...Chapter 6 177 ...
Page 208: ...Appendix A 198 ...
Page 214: ...204 Appendix B ...
Page 216: ...206 Appendix C ...