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112
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 163.
Check
AC/Battery
Swap AC/Battery
try
NG
OK
Swap M/B
Start
Summary of Contents for Aspire one 521 Series
Page 6: ...VI ...
Page 10: ...X Table of Contents ...
Page 49: ...Chapter 2 39 5 Flash is complete when the message Flash programming complete displays ...
Page 67: ...Chapter 3 57 5 Pull the WLAN module out and away ...
Page 69: ...Chapter 3 59 5 Pull the 3Gmodule out and away ...
Page 73: ...Chapter 3 63 4 Detach the keyboard FPC a Unlock the FPC b Pull the keyboard away a b ...
Page 86: ...76 Chapter 3 4 Lift the speakers clear of the lower cover ...
Page 101: ...Chapter 3 91 3 Secure the speaker cable using a strip of adhesive tape ...
Page 105: ...Chapter 3 95 4 Place the LVDS cable in the hinge channel as shown ...
Page 120: ...110 Chapter 3 ...
Page 136: ...126 Chapter 4 ...
Page 137: ...Chapter 5 127 Jumper and Connector Locations Mainboard Top View Chapter 5 ...
Page 138: ...128 Chapter 5 Mainboard Bottom View CN12 HDMI ...
Page 140: ...130 Chapter 5 ...
Page 142: ...132 Chapter 6 Main Assembly Item Description Part Number 1 2 3 4 5 6 ...
Page 149: ...Appendix A 139 Model Definition and Configuration Appendix A ...
Page 172: ...162 Appendix B ...
Page 174: ...164 ...
Page 177: ...167 Index ...