Epson 20 Personal Computer User Manual


 
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