Epson 10020 User Manual

To check the color graphics adapter, press 1 and then Enter.

The computer checks the video RAM (display memory) on the
display adapter by writing test data to memory, and then
reading it back and comparing it to the written data. It also

tests the video enable signal of the display controller chip.

To check the display attributes of the color graphics adapter

card, press 2 and Enter. Several messages are displayed

showing examples of all the possible display attributes and

colors. Check the information displayed on your screen, and
respond to the prompt:

Is 

the display 

correct (Y/N)?

Press Y and then Enter if the display is correct. If the colors
are not correct, adjust the controls on your display monitor. If
they are still incorrect, press N and Enter.

Contact your Customer Care Center if you have any monitor
problems.

Performing System Diagnostics