Panasonic PT-LB55, Operating Instructions Manual

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Before calling for service
Before calling for service, check the following points.
Problem Possible cause Page
Power does not
turn on.
No picture
appears.
The picture is
fuzzy.
The colour is
pale or grayish.
No sound can
be heard.
The remote
control unit
does not
operate.
The buttons on
the projector do
not function.
B The mains lead may not be connected.
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.
B The video signal input source may not be
connected properly.
B The input selection setting may not be correct.
B The “BRIGHTNESS” 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.
B
The lens focus may not have been set correctly.
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.
B The input source which is connected to the
projector may not be adjusted correctly.
B The audio signal source may not be connected
properly.
B The volume adjustment may be at the lowest
possible setting.
B A cable may be connected to the VARIABLE
AUDIO OUT connector.
B The battery may be weak.
B The battery may not be inserted correctly.
B The remote control signal receptor on the projector
may be obstructed.
B The remote control unit may be out of the
operation range.
B
The “CONTROL PANEL” may be set to “INVALID”.
In order to set the “CONTROL PANEL” to “VALID”
without using the remote control unit, keep holding
down the ENTER button on the projector and press
the MENU button for more than 2 seconds.
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Care
and
maintenance