Epson 500 Series - Manual (Page 75)

Error Messages
Your computer's built-in memory (ROM) contains a series of
diagnostic programs, called power-on diagnostics, which your
computer runs automatically every time you turn it on. These
programs check internal devices such as ROM, RAM, the timer,
the keyboard controller, and the hard disk drive.
When the diagnostics test RAM, you see the total amount of
memory currently installed in your system. If the computer finds
an error, it displays an error message on the screen. Write down
the error message and give it to the person who is helping you
when you report the problem.
If the error is serious, the computer cancels further checking and
halts system initialization. The error message remains on the
screen and the computer locks up. If this happens, contact your
Authorized EPSON Servicer as soon as possible to report this
information and the error message.
The Computer Won't Start
If your computer does not start when you press the power button,
try the following:
1.
2.
3.
Check the power light. If it is an, the computer is on and you
should follow the steps under "The LCD Screen is Blank" later
in this appendix. If the light is not on, go to step2.
Pess the power button to turn off the computer. If you are
using the battery pack, remove it and reinstall it. If you are
using the AC adapter, disconnect it and theen reconnect reconnect it.
Then turn the power on again.
If the computer still does not start, problem is probably
caused by the power source; see "Battery Problems "or" AC
Adapter Pobems below.
Troubleshoot A - 3