Sony PCG-F250 Manual

On Cleaning CD-ROMs and DVD-ROMs
❑

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.

On 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.