Acer Veriton Z4621G, Service Manual

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Troubleshooting
4-3
Troubleshooting
Introduction
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This chapter provides instructions on how to trouble shoot system hardware problems.
Hardware Diagnostic Procedure
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NOTE: NOTE :
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.
1. Obtain as much detailed information as possible about the problem.
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
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Power System Check
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If the system will power on, skip this section. Refer to System External Inspection.
If the system will not power on, do the following:

Check if the power cable is properly connected to the system and AC source.

Check if the voltage selector switchis set to the correct voltage setting.
System External Inspection
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
Inspect the LED indicators on the front panel, which can indicate the malfunction.

Make sure that air flow is not blocked.

Make sure nothing in the system is making contact that could short out power.

If the problem is not evident, continue with System Internal Inspection.