Panasonic PT-LB30U - Manual (Page 23)

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Getting
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Insert the accessory lithium battery while making sure that the polarities are correct.
# While pushing the battery holder tab to the right, pull out the battery
holder.
$ Insert the battery into the battery holder so that the + side is facing
upward.
% Insert the battery holder.
Preparation for the remote control unit
Push the tab
Pull out
Back side
Match the “+” surface of the battery
with the “+” marked side of the
battery holder.
NOTE:
B Do not drop the remote control unit.
B Keep the remote control unit away from liquids.
B Remove the battery if not using the remote control unit for long periods.
B Use only CR2025 batteries as replacement batteries.
B If the remote control unit is held so that it is facing directly in front of the
remote control signal receptor, the operating range is within
approximately 7 m (23´) from the surfaces of the receptor. Furthermore,
the remote control unit can be operated from an angle of ±30° to the left
or right and ±15° above or below the receptor.
B If the buttons on the remote control unit are kept pressed, the battery
power will be consumed rapidly.
B If there are any obstacles in between the remote control unit and the
receptor, the remote control unit may not operate correctly.
B If strong light is allowed to shine onto the remote control signal receptor,
correct projector operation may not be possible. Place the projector as
far away from light sources as possible.
B If facing the remote control unit toward the screen to operate the projector,
the operating range of the remote control unit will be limited by the amount
of light reflection loss caused by the characteristics of the screen used.