Epson LT - 286e - Manual (Page 41)

Video Diagnostics
The tests listed in the Video submenu provide a complete
diagnostics check of the video adapter. Use these tests to check
the operation of the LCD or monitor connected to your
computer.
Run All Tests
Adapter Test
Attribute Test
80x25 Display Test
40x25 Display Test
320x200 Graphics Test
640x200 Graphics Test
Page Selection Test
Color Test
640x350 Graphics Test
Adapter Test
This test checks the memory assigned to the display adapter.
Attribute Test
This test checks the display attributes of the video adapter.
80x25 Display Test
This test checks the 80x25 display feature of the display
adapter.
36 System Diagnostics