Sony PCG-SR7K Laptop User Manual


 
VAIO® Notebook User Guide
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Cleaning CD or DVD Media
Fingerprints and dust on the surface of a disc may cause read errors.
Proper care of the disc is essential to maintain its reliability. Do not
use solvents such as benzine, thinner, commercially available cleaners
or anti-static spray, as they may cause damage to the disc.
For normal cleaning, hold the disc by its edge and use a soft cloth to
wipe the surface from the center out.
If the disc is badly soiled, moisten a soft cloth with water, wring it out
well, and use it to wipe the surface of the disc from the center out.
Wipe off any remaining moisture with a dry soft cloth.
Using Batteries
Never leave the battery pack in temperatures above 140
°
F (60
°
C),
such as under direct sunlight or in a car parked in the sun.
Battery life is shorter in a cold environment. This is due to decreased
battery efficiency at low temperatures.
Charge the batteries at temperatures between 50
°
F and 80
°
F (10
°
C
to 30
°
C). Lower temperatures require a longer charging time.
While the battery is in use or being discharged, the battery pack heats
up. This is normal and is not cause for concern.
Keep the battery pack away from all sources of heat.
Keep the battery pack dry.
Do not open or try to disassemble the battery pack.
Do not expose the battery pack to any mechanical shock.
If you are not using the computer for an extended period of time,
remove the battery pack from the computer to prevent damage to the
battery.
If, after fully charging the battery pack, the battery power is still low,
the battery pack may be reaching the end of its life and should be
replaced.
You do not need to discharge the battery before recharging.
If you have not used the battery pack for a considerable amount of
time, recharge the battery.