TM 5-6675-316-14
Table 2-8. TEST DESCRIPTION - Cont
Description
Test
Keyboard Diagnostic - Cont
If key is not sensed, or if no key is
Functional Test - Cent
Test 20:
entered within 5 sec, KEY XXX ENTERED NO
Enter appropriate key to continue with
testing.
causes error message to be displayed.
Test will continue automatically and is
repeated for shift mode. When keyboard
has been completely tested, PAUSE
message will be displayed. For the
purpose of this test, the two SHIFT
keys, SHIFT LOCK and RESET are
unnumbered.
Key Code Dump Diagnostic
This test allows visual verification of
Test 21:
Key Code Dump Test
any desired key code.
When first key is depressed, "CODE"
message will appear accompanied by hex
code corresponding to that key.
Displayed code can then be checked
against key code table to determine any
errors.
Character Generator Diagnostic
This test provides the technician with
Functional Test
Test 22:
means to make subjective visual
judgments as to display performance
character generator functions.
Test sequences, through entire character
program, fill lower 8 lines of screen
with single character in ascending coded
order. Images appear for approximately
2 see, providing time to visually screen
errors.
Verifies all RAM by performing dynamic
Memory Test
Test 25:
pattern test (up-down) and sequence test
to extent as set on diagnostic status
switches S1 and S2.
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