The led sensor of your tv is may be damage in this case it must be check in actual testing of the unit, to check if there is dc voltage supplying the sensor or the resistor is damage that limit the dc voltage to sensor. if you are handy in electronic parts I think it is easy for you to check the fault, but if not you should check first the tv if you can remove it's parts because this tv combos has lots of connectors. Or you can contact a service technician to do it for and save you from stress, If you are willing to do it your self be sure to unplug the unit before removing the back cover, and put a label in all connectors that will be disconnected. good day and best regards.
No you don't have other option, IR receiver (inside tv ) need replacment but should not be expensive repair,part by itself is few bucks.
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I took it in to local TV repair shop and had the sensor replaced and all works just fine. Thanks for the guidance.
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