HP 79XXY Owner's Manual page 88

Warning: Your system is provided with a
voltage select switch for use in a 115 or
230 Vac power system. The voltage select
switch has been pre-set to the correct
voltage setting for use in the particular
country where it was initially sold.
Changing the voltage select switch to the
incorrect position can damage your PC
and void any implied warranty.
Warning: To reduce the possibility of an
electric shock from the telephone
network, plug your computer into the AC
outlet before connecting it to the
telephone line. Also, disconnect the
telephone line before unplugging your
computer from the AC power outlet.
Warning: Always disconnect the modem
cord from the telephone system before
installing or removing your computer
cover.
Warning: Do not operate the computer
with the cover removed.
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Warning: The power supply is not user-
serviceable. To prevent damage to the
power supply, have a qualified person
repair or replace it. All other components
are user-serviceable.
Warning: Electrostatic discharge (ESD) can
damage disk drives, add-in cards, and
other components. If an ESD station is not
available, wear a wrist strap attached to
a metal part of the computer. Place cards
on a conductive foam pad or inside the
card wrapper, if possible, but never on
the card wrapper.
Warning: For your safety, always unplug
the system from its power source and
from any telecommunications systems
(such as phone lines), networks, or
modems before performing any of the
procedures described in this guide. Failure
to do so may result in personal injury or
equipment damage. Hazardous voltage
levels are inside the power supply and
modem of this product.