Acer Extensa 4220, User Manual

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Information for your safety and
comfort
Safety instructions
Read these instructions carefully. Keep this document for future reference.
Follow all warnings and instructions marked on the product.
Turning the product off before cleaning
Unplug this product from the wall outlet before cleaning. Do not use liquid
cleaners or aerosol cleaners. Use a damp cloth for cleaning.
CAUTION for plug as disconnecting device
Observe the following guidelines when connecting and disconnecting power to
the power supply unit:
Install the power supply unit before connecting the power cord to the AC
power outlet.
Unplug the power cord before removing the power supply unit from the
computer.
If the system has multiple sources of power, disconnect power from the system
by unplugging all power cords from the power supplies.
CAUTION for Accessibility
Be sure that the power outlet you plug the power cord into is easily accessible
and located as close to the equipment operator as possible. When you need to
disconnect power to the equipment, be sure to unplug the power cord from the
electrical outlet.
CAUTION for Dummy Card of PCMCIA & Express Slot
Your computer shipped with plastic dummies installed in the PCMCIA & Express
slot. Dummies protect unused slots from dust, metal object, or other particles.
Save the dummy for use when no PCMCIA or Express Card is installed in the slot.
CAUTION for Listening
To protect your hearing, follow these instructions.
•
Increase the volume gradually until you can hear clearly and comfortably.
•
Do not increase the volume level after your ears have adjusted.
•
Do not listen to music at high volumes for extended periods.
•
Do not increase the volume to block out noisy surroundings.
•
Decrease the volume if you can't hear people speaking near you.