DRX 4.3-When the unit is operating erratically

Try restarting the unit

Restarting this unit may solve the problem. After turning the unit to standby mode, press and hold the On/Standby button of the main unit for at least 5 seconds, and
then restart the unit. (The settings on this unit are kept.) If the problem persists after restarting the unit, unplug and plug the power cords of this unit and connected
devices or HDMI cable .

                                 

Resetting the unit (this resets the unit settings to the default)

If the restart of the unit does not solve the problem, reset the unit, and restore all the settings to the factory default at the time of purchase. This may solve the problem. If the unit is reset, your settings are restored to the default values. Be sure to note down your setting contents before performing the following operations.
        1. While pressing and holding CBL/SAT of the input selector on the main unit with the unit turned                  on, press the On/Standby button.
       2. "Clear" is displayed on the display, and the unit returns to the standby state. Do not remove the                  power cord until "Clear" disappears from the display.
To reset the remote controller, while pressing and holding Mode, press the Clear button at least 3 seconds.