Epson I+ - Manual (Page 106)

Sync check
This test is provided for service purposes only. If you accidentally select
this option, press any key to end the test.
Run all above checks
To run all the tests on the menu in sequence, press 6 and Enter.
When you choose this option, all checks for the monochrome adapter
and CRT are performed automatically in sequential order. Although you do
not start each test, you must still supply the appropriate responses to progress
from one test to the nest.
Color Graphics Adapter and CRT Check
Use this option to check the operation of a color graphics display
adapter and monitor. This test includes several checks that allow you to
identify particular problems related to the color display. To run this check,
DIP switches 1 - 5 and 1 - 6 must be set correctly for a color monitor.
You can select the individual checks from this menu:
COLOR GRAPHICS ADAPTER AND CRT CHECK MENU
1
- Color graphics adapter check
3
2 - Attribute check
- Character set check
4 - 40-column character set check
5
- 320X200 graphics mode check
6 - 640X200 graphics mode check
7 - Screen paging cheek
8 - Light pen check
9 - Color video check
10 - Sync check
11 - Run all above checks
0 - Exit
* Enter selection number:
If you specified to run the color adapter check multiple times, this menu
does not display and only the first test (Color graphics adapter check) is
performed.
5-11