Monochrome Display Adapter and CRT Check
Use this option to verify the operation of a monochrome display adapter, VGA, or EGA card attached to a monochrome monitor. This test includes several checks that allow you to identify particular problems related to the monochrome display.
You can select the individual checks from this menu:
MONOCHROME DISPLAY ADAPTER AND CRT CHECK MENU
0 - Exit
If an error occurs during any of these tests, record the error code and message, or print them out. Then contact your Epson dealer or service center.
When you finish testing the device, select 0 to exit.
Monochrome Adapter Check
To check the monochrome adapter, select 1. The program checks the video RAM (display memory) on the display adapter by writing certain data to memory, then reading it back and comparing it to the written data. The program also tests the video enable signal of the display controller chip.