Lenovo ThinkPad 390E Hardware Maintenance Manual (March 1999): ThinkPad 390E o - Page 37
Checkout Guide, diagnostics program. See PC Doctor System Diagnostics
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Checkout Guide Use the following procedure as a guide for computer problems. Besides the checkout tests described in this section, there are other items you can test for using the PC Doctor diagnostics program. See "PC Doctor System Diagnostics" on page 51 for details. Note: The diagnostic tests are intended to test only IBM products. Non-IBM 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 recreate the failure by running the diagnostic test or by repeating the same operation. Note: To run the diagnostics, refer to "Running the Diagnostics" on page 50 3. Use the following table with the verified symptom to determine which page to go to. Search the symptoms column and find the description that best matches your symptom; then go to the page shown in the "Go to" column. Symptoms (Verified) Power failure. (The power-on indicator does not go on or stay on.) POST does not complete. No beeps or error codes/messages are indicated. POST beeps, but no error codes are displayed. POST detected an error and displayed numeric error codes. The diagnostic test detected an error and displayed a FRU code. Other symptoms (such as LCD display problems). Symptoms cannot be recreated (intermittent problems). Go to "Power System Checkout" on page 33, then use table in "Power-Related Symptoms" on page 44. "Symptom-to-FRU Index" on page 39, then use table in "No Beep Symptoms" on page 43. "Symptom-to-FRU Index" on page 39. "Symptom-to-FRU Index" on page 39, then use table in "Numeric Error Codes" on page 40. "Running the Diagnostics" on page 50. "Symptom-to-FRU Index" on page 39. Use the customer-reported symptoms, and go to "Symptom-to-FRU Index" on page 39. ThinkPad 390E 27