Before Calling For Service; Cleaning And Maintenance - Panasonic PT-L735E Operating Instructions Manual

Before calling for service

Before calling for service, check the following points.
Problem
Power does not B The mains lead may not be connected.
turn on. B The MAIN POWER switch is turned off.
B The main power supply is not being supplied to the
mains socket.
B TEMP indicator is illuminated or flashing.
B LAMP indicator is illuminated or flashing.
B The lamp unit cover has not been securely installed.
No picture B The video signal input source may not be
appears. connected properly.
B The input selection setting may not be correct.
B The BRIGHT adjustment setting may be at the
minimum possible setting.
B The shutter function may be in use.
B The lens cover may still be attached to the lens.
The picture is
B The lens focus may not have been set correctly.
fuzzy.
B The projector may not be at the correct distance
from the screen.
B The lens may be dirty.
B The projector may be tilted too much.
B COLOR or TINT adjustment may be incorrect.
COLOR is too
B The input source which is connected to the
light or TINT is
projector may not be adjusted correctly.
poor.
B The audio signal source may not be connected properly.
No sound can
B The volume adjustment may be at the lowest
be heard.
possible setting.
B A cable may be connected to the AUDIO OUT jack.
B The MUTE function may be active.
B The battery may be weak.
The remote
B The battery may not be inserted correctly.
control unit
B The remote control signal receptor on the projector
does not
may be obstructed.
operate.
B The remote control unit may be out of the
operation range.
B The CONTROL KEY may be set to "OFF".
The buttons on
In order to set the CONTROL KEY to "ON" without
the projector do
not function. using the remote control unit, keep holding down
the ENTER button on the projector and press the
MENU button for more than 2 seconds. It will then
be turned ON.
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Possible cause
Problem
The picture does
not display
Page
correctly.
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Picture from
computer does
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not appear.
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Cleaning and maintenance

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20, Before carrying out cleaning and maintenance, be
21
sure to disconnect the mains lead plug from the
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mains socket.
–
Wipe the cabinet with a soft, dry cloth.
22
22 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
22 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.
47
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.
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.
B RGB2 SELECT in the OPTION menu is set to
OUTPUT when the signals are input to RGB2 IN /
RGB1 OUT connector.
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