SOURCE: keyboard types upper case digits instead of lower
It sounds like you may have turned on the calculator function - Does one of your F keys have a light on - F10 or F11, if so Press Fn and the key that is lit up.
Error
5
Description
The
power up test sequence has detected a key in the operated condition.
The power up test
sequence
is performed every time the unit is turned on (powered up). This test
is performed
because
a permanently stuck key will inhibit the correct operation of the
unit.
Possible
Causes
1.
A key on the display housing is permanently stuck in the operated
condition.
2.
One of the upper PCA's keypad interface chips has failed.
3.
Liquid (perhaps perspiration) is present on the surface of a touch
sensitive display.
Possible
Remedies
1.
Remove the keypad connector cable from the upper PCA. Restart the
power up sequence, if
the
ERROR 5 is no longer present, the keypad is the cause. The keypad is
typically part of
the
display housing. Replace the display housing to correct the problem.
2.
Remove the keypad connector cable from the upper PCA. Restart the
power up sequence, if
the ERROR 5 is still present, the upper PCA is the cause. Replace the upper PCA to correct
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