Acer Aspire 1400, Service Manual

Page: 75 / 118

Chapter 4 69
Use the following procedure as a guide for computer problems.
NOTE: The diagnostic tests are intended to test this model (Aspire 1400 series). Non-Acer products,
prototype cards, or modified options can give false errors and invalid system responses.
1. Obtain the failed 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. If any problem occurs, you can perform visual inspection before you fellow this chapter’s instructions. You
can check the following:
power cords are properly connected and secured;
there are no obvious shorts or opens;
there are no obviously burned or heated components;
all components appear normal.
4. 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.) “Power System Check” on page 71.
POST does not complete. No beep or error
codes are indicated. “Power-On Self-Test (POST) Error Message” on
page 73
“Undetermined Problems” on page 81
POST detects an error and displayed messages
on screen. “Error Message List” on page 74
The diagnostic test detected an error and
displayed a FRU code. “System Diagnostic Diskette” on page 48
Other symptoms (i.e. LCD display problems or
others). “Power-On Self-Test (POST) Error Message” on
page 73
Symptoms cannot be re-created (intermittent
problems). Use the customer-reported symptoms and go to
“Power-On Self-Test (POST) Error Message” on
page 73
“Intermittent Problems” on page 80
“Undetermined Problems” on page 81
Troubleshooting
Chapter 4