Keyboard and External Input Device Checkout (2600-310/310D/310E/310ED)

Keyboard and External Input Device Checkout

NOTE: If an external keyboard is attached, remove it if the internal keyboard is to be tested.

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

If the test do not detect a keyboard problem, run the keyboard test by doing the following:
  1.  Boot from the diagnostics diskette and start the PQA program (please refer to 'Running PQA Diagnostics Program')
  2.  Go to the diagnostic menu screen, select Keyboard test and press F2 in the test items.
  3.  Check that when each key is pressed, the key's position on the keyboard layout on the screen  changes to a black square.

NOTE: Press Y+Enter to exit the test.

If the test detect a keyboard problem, do the following one at a time to correct the problem. Do not replace a non-defective FRU

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