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CQ-C8403U/C8303U
36
Troubleshooting
Problem
Possible cause
a
Possible solution
Remote control unit
No response to
pressing buttons
The battery is inserted in the wrong direction. A wrong battery is inserted.
aInsert a correct battery in the correct direction.
The battery is weak.
aReplace the battery with new one.
The aiming direction of the remote control unit is wrong.
aAim the remote control unit at the sensor of the unit and press buttons.
The sensor is exposed to direct sunlight. (The remote control unit may not be
operable when the sensor is exposed to direct sunlight. In such a case, the
system is not faulty.)
aBlock off sunlight to the sensor.