Epson 20 - Color Graphics Adapter and Crt

2. Turn on or reset the computer. The OPERATION MENU
appears.
3. Press 3 to select System diagnostics and then press Enter.
When you start the System diagnostics, the computer checks the
results of the power-on diagnostics and any peripheral devices that are
connected to the system.
Then you see a list of the devices available for testing. This list
includes only the devices that are installed in the system, such as the
following, for example:
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
Is the DEVICE LIST correct (Y/N)?
If the list correctly describes your system, press Y and then Enter. If a
device is missing from this list, or if you wish to change the list, press
N and Enter.
C-2 Performing System Diagnostics