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 top system board.
If the keyboard cable connection is correct,
run the Keyboard Test by performing
the following steps:
- Power-off the computer, and then
power it on again.
Press the F1 key any time
while the POST memory count is proceeding.
At the end of the memory test, the Easy-Setup screen screen appears.
- Press the left or right arrow key to
select Test and press Enter
or position the pointer over the Test icon and
click the left click button once.
- Press Ctrl+A
to enter advanced diagnostics.
- Press Ctrl+K to start the keyboard diagnostics test.
- Press each key.
A shaded box appears in
the corresponding key position on the
keyboard layout on the screen. Press the key again to remove the box.
NOTE:
The shaded box appears in Fn
only during the first keyboard test of a diagnostics session.
- To exit from the test screen, press Esc.
If the tests detect a keyboard problem,
perform the following tasks one at a time to correct the problem:
NOTE:
Do not replace a nondefective FRU.
- Reseat the three cables.
- Replace the keyboard.
- Replace the top system board.
The following auxiliary input devices are supported for
this computer through the MultiPort II:
- Numeric keypad
- Mouse (PS/2 compatible)
- External keyboard (standard PS/2 or
with keyboard/mouse cable)
If any of the above devices do
not work, reseat the cable connector and repeat the failing operation.
If the problem does not reoccur, recheck the connector.
If the problem reoccurs,
repeat the operation with a device that is known to be good.
If the problem still reoccurs,
go to 'MultiPort II Checkout'
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