Panasonic PT-LM1U - Manual (Page 28)

E NGLISH -55
Care
and
m
aintenance
54-E NGLISH
The picture does
not display
correctly.
Picture from
computer does
not appear.
Problem Possible cause
B The signal format (“TV-SYSTEM”) may not be set
correctly.
B There may be a problem with the video tape or
other signal source.
B A signal which is not compatible with the projector
may be being input.
B The cable may be too long.
B The external video output for the laptop computer
may not be set correctly.
(You may be able to change the external output
settings by pressing the [Fn]+[F3] or [Fn]+[F10]
keys simultaneously. The actual method varies
depending on the type of computer, so refer to the
documentation provided with your computer for
further details.)
B If an RGB INPUT indicator is turned off, the video
signals may not be output from the computer.
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14
Before carrying out cleaning and maintenance, be
sure to disconnect the power cord plug from the
wall outlet.
Wipe the cabinet with a soft, dry cloth.
If the cabinet is particularly dirty, soak the cloth in water with a small amount
of neutral detergent in it, squeeze the cloth very well, and then wipe the
cabinet. After cleaning, wipe the cabinet dry with a dry cloth. If using a
chemically-treated cloth, read the instructions supplied with the cloth before
use.
Do not wipe the lens with a cloth that is dusty or which produces lint.
If any dust or lint gets onto the lens, such dust or lint will be magnified and
projected onto the screen. Use a blower to clean any dust and lint from the
lens surface, or use a soft cloth to wipe off any dust or lint.
Cleaning and maintenance