Acer TRAVELMATE 7730, Service Manual, Page: 146 / 254

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Chapter 4: Troubleshooting
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.
1
Obtain the failing symptoms in as much detail as possible.
2
Verify the symptoms by attempting to re-create the failure by running the
diagnostic test or by repeating the same operation.
3
Use the following table with the verified symptom to determine which page to go
to.
Symptoms (Verified) Go To
Power failure. (The power indicator does
not go on or stay on.) “Testing the power system” on page 138
POST does not complete. No beep or
error codes are indicated. “Power-On Self-Test (POST) error message” on page 140
“Undetermined problems” on page 153
POST detects an error and displayed
messages on screen. “Index of error messages” on page 141
Other symptoms (LCD display problems
or others). “Power-On Self-Test (POST) error message” on page 140
Symptoms cannot be re-created
(intermittent problems). Use the customer-reported symptoms and go to “Power-
On Self-Test (POST) error message” on page 140
“Intermittent problems” on page 152
“Undetermined problems” on page 153