Acer 7730A manual Diagnosing problems, 136

Diagnosing problems

Use the following procedure as a guide for diagnosing notebook problems.

Note: The diagnostic tests are intended to test only Acer products. Non- Acer products, prototype cards, or modified options can give false errors and invalid system responses.

1Obtain the failing symptoms in as much detail as possible.

2Verify the symptoms by attempting to re-create the failure by running the diagnostic test or by repeating the same operation.

3Use the following table with the verified symptom to determine which page to go to.

Symptoms (Verified)	Go To
Power failure. (The power indicator does	“Testing the power system” on page 138
not go on or stay on.)
POST does not complete. No beep or	“Power-On Self-Test (POST) error message” on page 140
error codes are indicated.	“Undetermined problems” on page 153
POST detects an error and displayed	“Index of error messages” on page 141
messages on screen.
Other symptoms (LCD display problems	“Power-On Self-Test (POST) error message” on page 140
or others).
Symptoms cannot be re-created	Use the customer-reported symptoms and go to “Power-
(intermittent problems).	On Self-Test (POST) error message” on page 140
	“Intermittent problems” on page 152
	“Undetermined problems” on page 153

136 Chapter 4: Troubleshooting