Nimportant Notes; Important Notes - Mitsubishi WS-73909 Owner's Manual

Warning:
The normal use of a TV should include a
mixture of TV picture types. The most fre-
quently used picture types should ll th e
screen with constantly moving images rather
than stationary images or patterns. Dis-
playing the same stationary patterns over
extended periods of time, or displaying the
same stationary pattern frequently can leave
a subtle but permanent ghost image. To
avoid this, mix your viewing pattern. Do not
show the same stationary image for more
than 15% of your total TV viewing in any one
week. Display constantly moving and chang-
ing images that ll th e scr e en wh enever p os-
sible.
This projection TV uses picture tubes to proj-
ect the image to the screen. All picture
tubes age with use. As they age, their
light output is gradually reduced. Normal
TV pictures ll th e scr e en wi th const a nt ly
changing images. Under these conditions,
picture tubes age at an even rate across
the entire screen. This maintains a TV pic-
ture that is evenly bright over the whole
screen. Stationary images or images that
only partially ll th e scr e en ( l e avi n g bl a ck
or colored bars to ll th e scr e en) , w h en
used over extended periods of time or when
viewed repeatedly, can cause uneven aging
of the phosphors and leave subtle ghosts of
the stationary images in the picture.
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Do not leave stationary or letterbox images on-screen for
extended periods of time. Mix the types of pictures shown.
Uneven picture tube aging is NOT covered by your warranty.
Still or stationary images may be received
from broadcasters, cable channels, satellite
channels, DVD discs, video tapes, laser
discs, on-line services, web/internet search-
ing devices, video games, and digital TV
tuner/converter boxes. Examples of these
types of images can be, but are not limited
to the following:
Letterbox top/bottom black bars:
shown at the top and bottom of the TV
screen when you watch a widescreen
(16:9) movie on a standard (4:3) TV.
Side bar images: solid bars shown on
each side of an image when watching a
standard (4:3) program on a widescreen
(16:9) TV.
Stock-market report bars: ticker run-
ning at the bottom of the TV screen.
Shopping channel logos & pricing dis-
plays: bright graphics that are shown con-
stantly or repeatedly in the same location.
Video game patterns and scoreboards
Bright station logos: moving or low-contrast
graphics are less likely to cause uneven
aging of the picture tubes.
On-line (internet) web sites: or any
other stationary or repetitive computer style
images.