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April 2009
Testing the Keys
The Test Keys option checks the functioning of the various keys
on the keypad. To start the test, scroll to the Test Keys option on
[ENTER]
the Test Menu and press
. The screen appears similar to
Figure 9-22 below. Press any key on the keypad, and a window
representing that key should darken.
Figure 9-22: The Test Keys Window
[F3]
Pressing the
key returns the meter to the Operate Mode. If
any key does not appear on the screen or does not darken when
pressed, contact GE Sensing.
Note: The power key does not appear in this test.
Servicing the PT878GC
9-37
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