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November 2008 Part No. 920559 Rev H
1.7. KEYPAD SELF-TEST
Testing the CAT keypad requires the operator to select keys on the keypad and verify the informa-
tion on the display screen. Refer to the Keypad Test table below.
Complete the following steps to test the keypad.
Step 1 Press a key listed under the column heading Native Mode Key.
Step 2 Verify the two digit number on the display screen with the number listed under the
column heading Keypad Coordinate.
The screen does not display a two digit number when the NEXT key is pressed. This key
remains functional during the keypad self-test.
Step 3 Repeat Steps 1 and 2 until all of the keys are tested.
Step 4 Press the NEXT key to proceed to the memory self-test.
KEYPAD TEST
Native Mode Key Keypad Coordinate
CLEAR 00
7 01
4 02
1 03
0 10
8 11
5 12
2 13
ENTER 20
9 21
6 22
3 23
CANCEL 30
NO 32
YES 33
NEXT Proceed to memory test.
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