IBM 5150 - Page 81

This test is used to verify the 40 x 25 Alpha mode logic is
functioning on the Color/Graphics Monitor Adapter. The
border for
the 40 x 25 character test should be white. Press
g and ~ (Enter). The following should appear on
your Display:
40X25 DISPLAY
)*+,-./0123456789: :(:)?OABCDEFGH!J~LM~OPI
*+,-./0123456789: :(:)?OABCDEFGH!J~LMNOPQI
+,-.10123456789: ;<:)?OABCDEFGHIJ~LMNOPQR:
,-./0123456789:;(:)?OABCDEFGHIJKLMHOPQRS:
-./e123456789:;(:)?OABCDEFGHIJKLMHOPQRSTI
./B123456789:;(=)?OABCDEFGHIJKLMHOPQRSTUl
101234S6789:;(:)?OABCDEFGHIJKLMNOPQRSTUU~
B123456789:;(:)?OABCDEFGHIJKLMHOPQRSTUUW>
123456789:;(:)?OABCDEFGHIJKLMHOPQRSTUUWX~
IS THE SCREEN CORRECT? (YIN) - ~ -
, "
IS THE BORDER WHITE AND ARE ALL THE
CHARACTERS PRESENT AND COMPLETE?
NO Replace your Color/Graphics Monitor Adapter. See
Section 3, "Removal/Replacement."
YES
500-10