Aspire TC-780 Desktop Computer Service Guide
81
Troubleshooting
This chapter provides instructions on how to troubleshoot system hardware problems.
Hardware Diagnostic Procedure
1.
Obtain the failing symptoms in as much detail as possible.
2.
Verify the symptoms by attempting to recreate the failure by running the diagnostic tests or repeating the
same operation.
3.
Refer to “Power System Check” and ““Beep Codes” ” to determine which corrective action to perform.
System Check Procedures
Power System Check
If the system can be powered on, skip this section. Proceed to the “System Internal Inspection” procedure on
the next page.
If the system will not power on, do the following:
•
Check if the power cable is properly connected to the AC power jack and a functional AC power source.
•
Check if the voltage selector switch is set to the correct voltage setting.
System External Inspection
1.
Inspect the power and LED indicators on the front panel. Go to “Front View” section on page 3 for the
location and description of the LED behaviour.
2.
Make sure that the ventilation slots on the rear panel are not blocked.
3.
Make sure that there is no point of contact in the system that can cause a power short.
4.
If the cause of the failure is still can not be determined, perform the “System Internal Inspection”
procedure described on the next page.
IMPORTANT
The diagnostic tests described in this chapter are only intended to test Acer products. Non-
Acer products, prototype cards, or modified options can give false errors and invalid system
responses.
Chapter 4
Summary of Contents for Aspire TC-780
Page 6: ...vi Aspire TC 780 Desktop Computer Service Guide ...
Page 35: ...Aspire TC 780 Desktop Computer Service Guide 27 5 Pull the front bezel away from the chassis ...
Page 88: ...80 Aspire TC 780 Desktop Computer Service Guide ...
Page 126: ...118 Aspire TC 780 Desktop Computer Service Guide ...
Page 136: ...128 Aspire TC 780 Desktop Computer Service Guide ...
