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4-4
Troubleshooting
Power On Issues
0
If the system fails, perform the following:
Figure 4-1.
Power On Issue
Computer Shuts Down Intermittently
0
If the system powers off at intervals, perform the following.
1. Makes sure the power cable is properly connected to the computer and the electrical
outlet.
2. Remove all extension cables between the computer and the outlet.
3. Remove all surge protectors between the computer and the electrical outlet. Plug the
computer directly into a known serviceable electrical outlet.
4. Disconnect the power and open the casing to check the Thermal Unit (Refer to
) 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, refer to
.
Start
Swap AC/Battery
Swap M/B
OK
NG
OK
OK
NG
Check
AC/Batt only
power on
Check
Power/B
Whether OK
Swap Power
SW/B
Summary of Contents for Aspire ONE 722
Page 1: ...i Aspire One 722 SERVICE GUIDE ...
Page 10: ...x ...
Page 11: ...CHAPTER 1 Hardware Specifications ...
Page 14: ...1 4 ...
Page 51: ...CHAPTER 2 System Utilities ...
Page 78: ...2 28 System Utilities ...
Page 79: ...CHAPTER 3 Machine Maintenance Procedures ...
Page 82: ...3 4 ...
Page 125: ...CHAPTER 4 Troubleshooting ...
Page 157: ...CHAPTER 5 Jumper and Connector Locations ...
Page 165: ...CHAPTER 6 FRU Field Replaceable Unit List ...
Page 166: ...6 2 Exploded Diagrams 6 4 Main Assembly 6 4 LCD Assembly 6 6 FRU List 6 7 Screw List 6 15 ...
Page 180: ...6 16 FRU Field Replaceable Unit List ...
Page 181: ...CHAPTER 7 Model Definition and Configuration ...
Page 182: ...7 2 Aspire One 722 7 3 ...
Page 210: ...7 30 Model Definition and Configuration ...
Page 211: ...CHAPTER 8 Test Compatible Components ...
Page 212: ...8 2 Microsoft Windows 7 Environment Test 8 4 Aspire One 722 8 4 ...
Page 219: ...CHAPTER 9 Online Support Information ...
Page 220: ...9 2 Introduction 9 3 ...
Page 222: ...9 4 Online Support Information ...