Epson 10020 - Manual (Page 164)

After printing the error message, the program displays this
prompt:
Printout is finished. Press ENTER to
return to the menu.
The program continues after an error in one of the following
ways:
It returns to the DEVICE LIST, or
If you are running multiple tests and are not terminating on
an error, the program repeats the test that caused the error.
The remainder of this appendix describes the tests you can run
on the system’s internal devices and on the optional devices
installed on your computer. The program displays the title of
each check on the screen.
Note
For a complete list of the error codes and messages these tests
may display, see the table end of this chapter.
System Board Check
Use this option to check the operation of each major
component on the system board, including:
The 8088 CPU chip
The system ROM
The real-time clock, CMOS RAM, and battery
The main integrated circuits,
Performing System Diagnostics D-7