Diagnosing Problems - Packard Bell EasyNote DT85 Service Manual

Diagnosing problems

138
CHAPTER 4: Troubleshooting
Use the following procedure as a guide for diagnosing notebook problems.
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.
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)
Power failure. (The power indicator
does not go on or stay on.)
POST does not complete. No beep or
error codes are indicated.
POST detects an error and displayed
messages on screen.
Other symptoms (LCD display
problems or others).
Symptoms cannot be re-created
(intermittent problems).
Go To
"Testing the power system" on page
140
• "Power-On Self-Test (POST) error
message" on page 143
• "Undetermined problems" on page
157
"Index of error messages" on page 144
"Power-On Self-Test (POST) error
message" on page 143
• Use the customer-reported
symptoms and go to
Self-Test (POST) error message" on
page 143
• "Intermittent problems" on page 156
• "Undetermined problems" on page
157
"Power-On