Sony PCG-F640 - Manual (Page 20)

VAIO Notebook User Guide
20
❑ 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.
❑ 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.