Epson 2000 - Manual (Page 17)

If you purchased any optional equipment that goes inside the
computer-such as option cards, memory modules, or
drives-you should install these devices before you connect
your computer. See Chapters 3 and 4 for instructions.
Setting the Voltage Selector Switch
Your system is powered by a 200 watt power supply. The
power supply voltage is controlled by a voltage selector switch
on the computer’s back panel. You can set this switch to 110
VAC or 220 VAC.
EPSON ships the computer with the voltage selector switch set
to 110 VAC. This setting is appropriate for line source voltages
between 100 and 120 VAC, and is generally the appropriate
setting to select if you plan to use your computer in North
America, South America, or Japan.
If you plan to operate the computer in the United Kingdom,
Europe, or some South American countries, you will probably
need to reset the voltage selector switch to 220 VAC. Doing so
allows your computer to handle line source voltages between
200 and 240 VAC, which are standard in Europe.
Caution
Before you turn on the power to your system, make sure the
voltage selector is set to the appropriate setting for the
electrical power source in your location or you will seriously
damage your system.
1-2 Setting Up Your System