Keyboard and Auxiliary Input Device
Checkout
Note: Remove the external keyboard if the inter board is to be tested.
If the internal keyboard does not work or an u character appears, make sure that the flexible extending from the keyboard is correctly seate nector.
If the keyboard cable connection is correct, board Test.
1. Boot from | and start |
DOS System | Diagnostics” on page 48 for detail |
2.SelectInteractive Tests .
3.SelectKeyboard .
4. Follow the instructions in the message window.
If the test detects a keyboard problem, do one at a time to correct the problem. Do not defective FRU.
1.Replace the keyboard.
2.Replace the system board.
The following auxiliary input devices are support computer:
ŸNumeric keypad
Ÿ Mouse (PS/2 compatible)
ŸExternal keyboard (with keyboard/mouse cable)
If any of these devices do not work, reseat nector and repeat the failing operation.
If the problem does not reoccur, replace the then the system board.
ThinkPad 390X / i 1700 29HMM