TM5-6675-316-14
Table 2-14. KEYBOARD DIAGNOSTIC ERROR CODES
Error
Code
Buffer swap error
051
Buffer error
052
NOTE
q Next part of test enables checkout of key switch codes for 78-key
keyboards. Primary message indicates keyboard mode (SHIFT or unSHIFT).
Second message indicates key number to be pressed. As appropriate keys
are pressed, audible signal indicates the key entered was sensed
correctly. Errors are displayed on screen in the following format.
6 COLUMNS
IS
REQ
KEY NO.
2A
7 ROWS
20
005
q The following keys are inactive 66, 67, 69, 71, 72, 73, and 74.
If pressed, they will result in errors.
q If key is not sensed, or if no key is entered within 5 see, KEY XXX
ENTERED NO
R message is displayed. NO and cursor left
triggers RE-ENTER KEY NO XXX message.
q For the purpose of this test, the two SHIFT keys, SHIFT LOCK and RESET
are not numbered.
(4) Enter appropriate to continue with testing.
(5) Enter YES
to cause error message to be displayed.
(6) Continue with remainder of test.
Perform key code dump test.
at.
(1) Select test 21 (step af).
(2) Press first key.
(a) Code message accompanied by hex code wil1 appear on display.
(b) Check displayed code against key code table to determine
errors.
(3) Continue with rest of keys to be checked.
2-221
