Acer Aspire 5520 Aspire 5220/5520/5520G Service Guide - Page 79

Chapter 4 Troubleshooting Use the following procedure as a guide for computer 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) 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 (i.e. LCD display problems or others). Symptoms cannot be re-created (intermittent problems). Go To "Power System Check" on page 88 "Power-On Self-Test (POST) Error Message" on page 91 "Undetermined Problems" on page 103 "Error Message List" on page 92 "Power-On Self-Test (POST) Error Message" on page 91 Use the customer-reported symptoms and go to "Power-On Self-Test (POST) Error Message" on page 91 "Intermittent Problems" on page 102 "Undetermined Problems" on page 103 Chapter 4 86