Epson Epson - Manual (Page 22)

Setting the Voltage Selector Switch
Your system is powered by a 200 Watt power supply. The
power supply input voltage is controlled by a switch on the
computer’s back panel that may be set to 110 VAC or 220 VAC.
(The switch on your computer may read 115 VAC or 230 VAC;
these are equivalent settings.)
The computer is shipped with the voltage selector switch set to
110 VAC, which is appropriate for line source voltages between
100 and 120 VAC. This is generally the correct setting if you use
the 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 almost
certainly need to reset the voltage selector switch to 220 VAC.
Line source voltages between 200 and 240 VAC are acceptable
with the switch set to 220 VAC.
Caution
before you turn on the power to your system, make sure the
voltage selector is set appropriately for the electrical power
source in your location or you will seriously damage your
system.
To change the voltage selector switch setting, slide the switch
to the left to select 110 VAC or to the right to select 220 VAC.
1-2 Setting Up Your System