Epson LT-286 - Manual (Page 141)

Color Video Check
Option 8, Color video check, displays 16 different screens, each
with a different color and a message indicating the color. (On the
LCD display, the colors appear as shades of gray.) The screens show
the colors in the order shown below:
1 - Black 9 - Grey
2 - Blue 10 - Light blue
3 - Green 11 - Light green
4 -
Cyan
12 - Light cyan
5 - Red 13 - Light red
6 - Magenta 14 - Light magenta
7 - Brown 15 - Yellow
8 - White 16 - High-intensity white
Note
On the LCD display, this test is run with gray scale mode 2 in
effect, regardless of how the DIP switches are currently set. Table
1-2, in Chapter 1, lists the mapping of colors to gray tones in
mode 2.
To start this test, press 8 and then Enter. Press any key to display
each screen. On the last screen, this prompt appears:
Is the
display
correct
(Y/N)?
If all the colors are correct, press Y and Enter to end the test. If any
color is displayed incorrectly, check the adjustment of your monitor
(if you are using an external monitor) and be sure that both ends of
the cable are plugged in firmly. If a problem still exists, press N and
Enter to display the error message.
Sync Check
This test is provided for service purposes only. If you accidentally
select this option, press any key to end the test.
D-16 Performing System Diagnostics