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30
Chapter . . .
Warning: Do not leave stationary PIP/POP, or letterbox images on the screen for extended
periods of time. Mix the types of pictures shown. Uneven picture tube aging is
NOT covered by your warranty.
The normal use of a TV should include a
mixture of TV picture types. The most
frequently used picture types should fill
the screen with constantly moving images
rather than stationary images or patterns.
Displaying the same stationary patterns over
extended periods of time or displaying the
same stationary pattern frequently can leave
subtle but permanent ghost images. To avoid
this, mix your viewing pattern and reduce the
initial contrast level. Do not show the same
stationary image for more than 15% of your
total TV viewing in any given week. Display
constantly moving and changing images that
fill the screen whenever possible.
This projection TV uses picture tubes to project the
image to the screen. All picture tubes age with
use. As they age, their light output is gradually
reduced. Normal TV pictures fill the screen
with constantly changing images. Under
these conditions, picture tubes age at an even
rate across the entire screen. This maintains
a TV picture that is evenly bright over the
whole screen. Stationary images or images
that only partially fill the screen (leaving black
or colored bars to fill the screen), when used
over extended periods of time or when viewed
repeatedly, can cause uneven aging of the
phosphors and leave subtle ghosts from the
stationary images in the picture.
Still or stationary images may be received from
broadcasters, cable channels, satellite channels,
DVD discs, video tapes, laser discs, on-line
services, web/Internet searching 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.
News and stock-market report bars:
ticker running at the bottom of the TV screen.
Shopping channel logos & pricing displays:
bright graphics that are shown constantly 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.
Online (Internet) websites:
or any other stationary or repetitive computer
style images, including digital photos
Closed Captioning
Mitsubishi recommends using a gray
background rather than black or a bright color
if you frequently use closed captioning.
IMPORTANT NOTES