HP 79XXY Owner's Manual page 40

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.
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hp pavilion home pc
Warning: Do not operate the computer
with the cover removed.
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.