IBM 5150 Hardware Maintenance Manual page 76

Continue running diagnostic routines. Verify the installed
devices, select the Color/Graphics Test (5). The following
menu should appear on your Display:
COLOR/GRAPHICS MONITOR ADAPTER TEST
0- DISPLAY ADAPTER TEST
1 - DISPLAY ATTRIBUTES
2 - CHARACTER SET
3 -
BOX25 DISPLAY
4 - 40X25 DISPLAY
5 - 320X200 GRAPHICS
6 - 640X200 GRAPHICS
7 - LIGHT PEN TEST
B - SCREEN PAGING
9 - EXIT TO MAIN MENU
10 - RUN ALL ABOVE TESTS
11 - VIDEO TEST
12 - SYNC TEST
ENTER NUMBER OF DESIRED ACTION
DID THE ABOVE DISPLAY APPEAR?
NO
Go to page 500-19.
YES
•
500-5