Control Data Corporation CDC CC63X Hardware Maintenance Manual page 58

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• ROM Character Generator - Seven lines will be displayed
as follows:
32 Control codes
33 Numeric and special characters
32 Uppercase alpha and special characters
31 Lowercase and special characters
32 Foreign character symbols
32 Line drawing characters
64 PLATO characters
NOTE
If a foreign character set is
selected, they will appear in their
assigned locations.
NOTE
The external RAM characters will not
be displayed since they cannot be
displayed simultaneously with PLATO
characters.
• Attribute Test - A line (BLINK DIM UNDERSCORE INVERSE
BLANK) will be displayed with each word having the
associated bit set in background. If BLANK is seen on
the CRT, the function is not working.
• Keyboard Test - This test displays KEYBOARD TEST on one
line on the CRT. As the operator presses a key, the
hexadecimal code received from the key will be displayed
after the words KEYBOARD TEST. For the hexadecimal code
corresponding to each key, refer to Appendix A.
NOTE
The keyboard sends a code with 27
clear whenever a key is pressed and the
same code wi th 27 set when the key
is released. The codes sent by the
keyboard are not ASCII codes, for
example:
KEYBOARD TEST 55 (when the u key is
pressed)
KEYBOARD TEST D5 (when the u key is
released)
62940034 E
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