Sony PCG-K20P Manual

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Direct sunlight can damage the LCD. Be careful when using the computer near a window. 

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Do not scratch the LCD or exert pressure on it. This can cause a malfunction. 

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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. 

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The screen becomes warm during operation. This is normal and does not indicate a malfunction. 

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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.