Epson Y16499100301 - Manual (Page 106)

After these items are checked, you see a list of the devices
available for testing:
DEVICE LIST
1 - System board
2
- Memory
3 - Keyboard
5 - Video adapter and display
6 - Floppy disk drives and controller
9 - Parallel port (printer interface)
11 - Serial port (RS-232C port)
14 - Dot-matrix printer
17 - Hard disk drive and controller
0 - Exit
Enter selection number:
Selecting a Test
From the DEVICE LIST, select the device to be tested.
Type the number of the device, then press Enter.
Before the test begins, you are asked how many times to
perform the test. You see this menu:
Number of times to test device
1 - Run test one time
2 - Run test multiple times
0 - Exit
Enter selection number:
You can specify that the test be performed one time only
or any number of times in the range from 1 to 9999. Running a
test multiple times is for reliability testing of essential functions only;
in most cases, running a test only once is sufficient.
To perform the test once only, press 1 then Enter. The
program displays a submenu of more detailed tests for the
device you are checking.
D-2
Performing System
Diagnostics