17
Getting StartedUseful InformationTroubleshootingAppendix
Handling and Maintenance
zPlace the computer on a flat stable surface. Do not place the computer upright . If the computer is exposed to an
extremely strong impact, it may become inoperable.
zTemperature: Operation: 5 °C to 35 °C {41 °F to 95 °F}
Storage: -20 °C to 60 °C {- 4 °F to 140 °F}
Humidity: Operation: 30% to 80% RH (No condensation)
Storage: 30% to 90% RH (No condensation)
Even within the above temperature/humidity ranges, using for a long time in an extreme environment will result in
the product deterioration and will shorten the product life.
• Be sur e to use the computer in an environment with sufficient heat ventilation.
- Avoid using the computer on a highly heat retentive surfaces (e.g., rubber pads and blankets). If po ssible, use
the computer on surfaces that can dissipate heat, such as a steel desk.
- Do n ot cover the computer with towels, keyboard covers, etc., as this prevents heat dissipation.
- When using the computer, always keep the display open. (Note, however, that closing the display while the com-
puter is in use does not cause generation of heat, ignition, or other malfunction s.)
zDo not place the computer in the following areas, otherwise the compute r may be damaged.
• Near electronic equipment. Image distortion or noise may occur.
• Near mag nets or in magnetic fields.
• In extremely high or low temper ature.
zAs the computer can become hot during operation, keep it away from item s that are sensitive to heat.
This computer is designed to minimize shock to parts such as the hard disk dr ive, but no warranty is provided against
any trouble caused by shock. Be extremely careful when handling the com puter.
zWhen carrying the computer:
• Turn off the computer.
• Remov e all external devices, cables, cards and other protruding things.
• Remov e a disc in the CD/DVD drive.
• Do not drop or hit the compu ter against solid objects.
• Do not leave the display open.
• Do not pick up or hold the computer by the display part.
• Do not put anything (e.g., a piece of paper) between the display and
keyboard.
zWhen flying on an airplane:
• Carry the computer with you, and never put it in checked baggage.
• Obey th e airline's instructions when using the computer on the air-
plane.
zWhen carrying a spare battery, put it in a plastic bag to protect its ter-
minals.
z
This computer contains a magnet and magnetic produ cts at the locations circled in the illus -
tration at right. Avoid leaving metallic o bject or magnetic media in contact with these ar eas.
zThe touch pad is designed to be used with a finger tip. Do not place any o bject on its sur-
face and do not press down strongly with sharp-pointed or hard objects tha t may leave
marks (e.g., nails, pencils and ball point pens).
zAvoid any harmful substances such as oil from getting into the touch pad. The cursor
may not work correctly.
z
If the computer is being carried in a soft bag with the battery pack removed, avoid undue pressure
on the body of the computer in a crowded place, etc., as this may result in damage to the LCD.
When the battery indicator does not light on
The AC adaptor’s protection function may be working when the battery indic ator does not light on even if the AC adap-
tor and the battery pack are correctly connected with the computer.
zPull out the AC cord and wait for more than 1 minute to reconnect the AC cord.
zIf the problem persists, contact your technical support office.
If the computer becomes warm during usage
zCheck the following
• If you ar e not using a wireless LAN, turn the wireless LAN off.
• Use rec ommended RAM module products. Non-recommended RAM modules may not operate properly, and may
cause damage to your computer.

Operation Environment

Handling Cautions

NG NGOK

CF-S9mk2(DFQW5426ZA)_OI_EN.book Page 17 Tuesday, July 20, 2010 3:30 PM