Notes on use, On handling the lcd screen, On the power source – Sony PCG-838 User Manual
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Notes on Use
This section describes safety guidelines and precautions to help protect 
your computer from potential damage.
On Handling the LCD Screen
❑
Do not leave the LCD facing the sun as it can damage the LCD. Be 
careful when using the computer near a window.
❑
Do not scratch the LCD or exert pressure on it. This could cause 
malfunction.
❑
Using the computer in low temperature conditions may produce a 
residual image on the screen. This is not a malfunction. When the 
computer returns to normal temperature, the screen returns to 
normal.
❑
A residual image may appear on the screen if the same image is 
displayed for a lengthy period of time. The residual image disappears 
in a while. You can use a screen saver to prevent residual images.
❑
The screen becomes warm during operation. This is normal and does 
not indicate a malfunction.
❑
The LCD is manufactured using high-precision technology. You may, 
however, see tiny black points and/or bright points (red, blue, or 
green) that continuously appear on the LCD. This is a normal result 
of the manufacturing process and does not indicate a malfunction.
On the Power Source
❑
Your computer operates on 100V-240V AC 50/60 Hz.
❑
Do not share the AC outlet with other power-consuming equipment, 
such as a copying machine or shredder.
❑
You can purchase a power strip with a surge protector. This device 
prevents damage to your computer caused by sudden power surges 
such as those that may occur during an electrical storm.
❑
Do not place heavy objects on the power cord.