Acer Aspire 5251 Service Guide - Page 147

Troubleshooting Chapter 4 Common Problems 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) Go To Power On Issue Page 138 No Display Issue Page 139 LCD Failure Page 141 Internal Keyboard Failure Page 141 TouchPad Failure Page 142 Internal Speaker Failure Page 142 ODD Failure Page 145 WLAN Failure Page 148 Thermal Unit Failure Page 148 Other Functions Failure Page 149 Intermittent Failures Page 150 Undermined Failures Page 150 4. If the Issue is still not resolved, see "Online Support Information" on page 195. Chapter 4 137