120
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 non-defective FRUs:
Computer Shuts down 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.
Remove all external and non-essential hardware connected to the computer that are not necessary to
boot the computer to the failure point.
5.
Remove any recently installed software.
6.
If the Issue is still not resolved, see “Online Support Information” on page 207.
Start
Check
AC/Batt
only power
on
Swap
AC/Battery
OK
NG
Check
Power/B
Whether
OK
OK
Swap Power
SW/B
OK
NG
Swap M/B
Summary of Contents for AOD250
Page 6: ...VI ...
Page 10: ...X Table of Contents ...
Page 28: ...18 Chapter 1 ...
Page 45: ...Chapter 2 35 3 Execute MAC BAT to write MAC information to eeprom ...
Page 46: ...36 Chapter 2 ...
Page 52: ...42 Chapter 3 4 Lift the Memory cover up to remove 5 Lift the 3G cover up to remove ...
Page 60: ...50 Chapter 3 6 Disconnect the FFC and remove the Keyboard ...
Page 70: ...60 Chapter 3 4 Remove the WLAN Board from the Mainboard ...
Page 78: ...68 Chapter 3 4 Lift the Thermal Module clear of the Mainboard ...
Page 104: ...94 Chapter 3 3 Connect the Camera cable as shown ...
Page 126: ...116 Chapter 3 4 Replace the single screw to secure the HDD in place ...
Page 155: ...Chapter 5 145 Power board Item Description SW1 Power button LED1 Power LED ...
Page 208: ...Appendix A 198 ...
Page 216: ...206 Appendix B ...
Page 218: ...208 Appendix C ...
Page 222: ...212 ...