You can select the individual checks from this menu:

MONOCHROME ADAPTER AND CRT CHECK MENU

1 - Monochrome adapter check - Attribute check

3’ - Character set check 4 - Video check

5 - Sync check

6 - Run all above checks

0 - Exit

Enter selection number:

If an error occurs during any of these tests, record the error code and message, or print them out. Then contact your dealer or Epson for customer service.

Monochrome adapter check

To check the monochrome adapter, press 1 and then Enter.

The computer 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 computer also tests the video enable signal of the display controller chip.

Attribute check

To check the display attributes of the adapter card, press 2 and then

Enter.

A series of messages appear showing examples of all the possible display attributes (normal intensity, high intensity, blinking, reverse, and underlin- ing). Check the information that appears on your screen, and then respond to the prompt:

Is the display correct (Y/N)?

Press Y and then Enter if the display is correct.

Diagnostics

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