Epson 10020 - Manual (Page 159)

To start the system diagnostics program, follow these steps:
1. Insert the Reference diskette in drive A.
2. Turn on or reset the computer. The OPERATION MENU
appears.
3. Press 4 to select Systemdiagnostics and then
press Enter.
When you start the system diagnostics, the computer checks
the following:
The setting of the DIP switches on the front panel
The positions of the internal jumpers
Any peripheral devices that are connected to the system.
After these items are checked, you see a list of the devices
available for resting. This list includes only the devices that are
installed in your system and looks something like this:
The following devices have been installed
DEVICE LIST
1 - System board
2 - Memory
3 - Keyboard
5 - Color graphics
adapter and CRT
6 - Floppy disk drives and controller
9 - Parallel port (printer interface)
11 - Serial port (RS-232C port)
14 - Dot-matrix printer
17 - Hard disk drives and controller
81 - Parallel port (on video adapter)
Is the DEVICE LIST correct (Y/N)?
D-2
Performing System Diagnostics