Samsung 750 User Manual page 123

Cautions when using the projection TV
Reflection of external light and illumination
Install the TV so that the light can't be reflected directly to the screen. If a
strong light such as external light or illumination is directly affected to the
screen, some part of the screen may appear white regardless of power on or
off. This occurs because either external light or illumination is reflected, so this
is not damage.
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Screen appears white
• In case of a normal CRT TV, an object is supposed to be displayed on the
screen after it is reflected to the surface of the glass as it is. However, this
kind of projection TV has a dim object in the shape of a white oval
displayed on the screen according to the reflection on the surface of the
screen and the internal reflection.
Operation of cooling fan
A cooling fan will operate to cool the lamp built in the TV set with a feeble
sound for about one minute after power off. If the TV set is re-powered on
having the lamp not enough cooled, it may take awhile to display a normal
picture. This is not damage.