Panasonic CQ-C800U Operating Instructions Manual page 36

Troubleshooting (continued)
No response to
pressing buttons
36
CQ-C800U
Problem
The battery is inserted in the wrong direction. A wrong battery is inserted.
Insert a correct battery in the correct direction.
a
The battery is weak.
a Replace the battery with new one.
The aiming direction of the remote control unit is wrong.
a Aim 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 opera-
ble when the sensor is exposed to direct sunlight. In such a case, the system is not
faulty.)
a Block off sunlight to the sensor.
Possible cause Possible solution
a