User manual

CHAPTER 4: Troubleshooting
116
Diagnosing problems
Use the following procedure as a guide for diagnosing notebook problems.
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.
Important
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.
Symptoms (Verified) Go To
Power failure. (The power indicator does
not go on or stay on.)
“Testing the power system” on page 118
POST does not complete. No beep or
error codes are indicated.
n
“Power-On Self-Test (POST) error
message” on page 120
n
“Undetermined problems” on page 133
POST detects an error and displayed
messages on screen.
“Index of error messages” on page 121
Other symptoms (LCD display problems
or others).
“Power-On Self-Test (POST) error message”
on page 120
Symptoms cannot be re-created
(intermittent problems).
n
Use the customer-reported symptoms and
go to “Power-On Self-Test (POST) error
message” on page 120
n
“Intermittent problems” on page 132
n
“Undetermined problems” on page 133