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3. Select Update system programs from the menu.
System Board Checkout
The processing functions are performed by the system
board. When a numeric code calls the system board as a
FRU, use the following procedure to isolate the problem:
1. Run the system board test to verify the symptom.
This test verifies the system board. If no error is
detected, return to “Checkout Guide” on page 127.
2. If FRU code 10 appears, replace the system board.
3. Rerun the test to verify the fix.
If this procedure does not correct the problem, go to
“Undetermined Problems” on page 149.
Keyboard or 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 flexible cable
extending from the keyboard is correctly seated in the
connector on the system board.
If the keyboard cable connection is correct, run the
Keyboard Test by doing the following:
1. Go to the diagnostic menu screen by pressing Ctrl+A
in the Easy-Setup screen.
2. Press Ctrl+K; a layout of the keyboard appears on
the screen.
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: When the Fn key is pressed, a black square
briefly appears.
If the tests detect a keyboard problem, do the following
one at a time to correct the problem. Do not replace a
nondefective FRU.
Reseat the keyboard cable.
Replace the keyboard.
Replace the system board.
The following auxiliary input devices are supported for this
computer:
Numeric keypad
Mouse (PS/2 compatible)
External keyboard (with keyboard/mouse cable)
If any of the these devices do not work, reseat the cable
connector and repeat the failing operation.
If the problem does not recur, recheck the connector.
ThinkPad 560, 560E (2640)
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