Keyboard / Auxiliary Input Device Checkout

Keyboard / Auxiliary Input Device Checkout

Remove the external keyboard if the internal keyboard is to be tested.

If the internal keyboard does not work or an unexpected character appears, make sure that the three flexible cables extending from the keyboard are correctly seated in the connectors on the system board.

If the keyboard cable connection is correct, run the Keyboard Test by doing the following:
  1.  Go to advanced diagnostic menu screen  by pressing Ctrl+A  in the basic diagnostic menu.
  2.  Press Ctrl+K, a layout of the keyboard  appears on the screen.
  3.  Check that when each key is pressed, the key position  on the keyboard layout on the screen changes to a black square.


If the tests detect a keyboard problem, do the following one at a time to correct the problem.

Do not replace a non-defective FRU.

The following auxiliary input devices are supported for this computer.

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