IBM 5150 - Page 86

This is a timed test. If you wait longer than 60 seconds to
respond or if you are not careful where you place the top of
the pen before you push it, you may receive an error message.
Position the tip
of the light pen in the center of the block and
press
the pen toward the display as shown below. The
displayed block will be replaced
by an asterisk (*). Repeat this
procedure for each new block
that appears.
Press
g and ~ (Enter). The following should appear
on your Display:
c=LI-G=Hr=PE=N=r=-E----c ----=--=--~-=-- ---==- ~~~~;:---'I
ST
PRESS LIGHT PEN ATCENTER
•
OF DI;PLAVED BL0j)
I
o
WERE YOU ABLE TO COMPLETE THE LIGHT PEN TEST?
NO Replace the light pen.
YES
500-15