Epson 386SX - Manual (Page 212)

Screen Paging Check
To check the screen paging of your monitor, select
7.
The
video RAM on the color graphics adapter is divided into eight
independent display pages (numbered 0 through 7). This test
checks the eight pages by first filling all eight with a number
corresponding to the page, and then displaying each page in
turn. You see the following pattern for screen 0:
SCREEN PAGING CHECK
Press any key for next page
Once you examine this screen, press any key to display the next
page. The eight pages are displayed sequentially.
After the eighth page appears, you see the prompt:
I s t h e
display correct ?
( Y / N )
If all eight pages are correct, select
Y.
If any page is filled with
an incorrect number, select
N
to display the error message.
C-20 Performing System Diagnostics