Lenovo ThinkPad A21m Hardware Maintenance Manual for ThinkPad A21e (2628) - Page 32
Enter, Diagnostics, Interactive Tests, Notes, Keyboard, Video Adapter, Quit - Exit Diag - memory
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Checkout guide If an error code appears, go to "Symptom-to-FRU index" on page 41. On the first screen, select the model and press Enter. Follow the instructions on the screen. 2. The main panel of PC-Doctor appears. 3. Select Diagnostics with the arrow keys, and press Enter. A pull-down menu appears. (Its exact form depends on the model.) The options on the test menu are as follows: Diagnostics v Run Normal Test v Run Quick Test v CPU/Coprocessor v Systemboard v Video Adapter v Serial Ports v Parallel Ports v Fixed Disks v Diskette Drives v Other Devices v Communication v Memory Test - Full v Memory Test - Quick Interactive Tests v Keyboard v Video v Internal Speaker v Mouse v Joystick Test v Diskette v System Load v CD-ROM/DVD Test v Stereo Speaker Notes: v In the Keyboard test in Interactive Tests, the Fn key is scanned only once. Each key should be held down for at least 2 seconds; otherwise, it cannot be sensed. v Video Adapter test supports only the LCD display on ThinkPad. Before running PC-Doctor DOS, detach the external Monitor. 4. Run the applicable function test. 5. Follow the instructions on the screen. If there is a problem, PC-Doctor shows messages describing it. 6. To exit the test, select Quit - Exit Diag. 28 ThinkPad A21e