Epson II+ ユーザーズマニュアル

You can select the individual checks from this menu:

MONOCHROME ADAPTER AND CRT CHECK MENU

1 - Monochrome adapter check

 Attribute check

 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.

To check the monochrome adapter, press 

and then 

The computer 

checks the video RAM (display memory) on the display

adapter by writing certain data to memory, then reading it back and compar-

ing it to the written data. The computer also tests the video enable signal of

the display controller chip.

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

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 

if the display is correct.