Testing The Keypad - GE MAC 600 SPY Service Manual

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Testing the Keypad

Revision G
Troubleshooting: General Fault Isolation
1. From the Diagnostics menu, select Keyboard Test.
The following window opens.
2. Press each key on the keypad and verify that the response appears in
the corresponding representation of that key on the screen.
When the corresponding key is pressed, a decimal value appears on
the screen. That will indicate whether or not the test has passed.
NOTE
Press Esc key in the end, as this will also exit from keyboard test.
See the following table for the decimal value matches that should be
present to pass the test.
Table 3-2. : Testing the Keypad
Returned Decimal
Key
Number key 1
Number key 2
Number key 3
Number key 4
Number key 5
Number key 6
Number key 7
Number key 8
Number key 9
Number key 0
Key Backspace
Function key F1
TM
MAC
600
2047426-002
Returned
Value
Character
49
1
50
2
51
3
52
4
53
5
54
6
55
7
56
8
57
9
48
0
8
1
Symbol on Display
1
2
3
4
5
6
7
8
9
0
del
F1
3-9

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