Thanks for the info.
There are two possible causes for this issue, either remote control
isn't sending out infrared signals when push button on it OR the remote sensor in TV isn't working so TV doesn't sens remote control infrared signals.
We can test the TV remote with help of digital or cell phone camera as camera can see the infrared light signals, push buttons on TV remote control while looking the remote front tip (where IR bulb is mounted) through cellphone camera, if you see flashing white light that means remote is working, means sending out infrared signals and remote sensor board located at lower front is defective that will be replaced to resolve the problem.
If no flashing light observed on remote front tip through cellphone camera then remote control is bad and replacement remote will help to resolve the problem.
Please check following two links to view images about how to check remote through cellphone camera..
and if remote found good then remote sensor board for TV is available at following supplier that will be replaced in TV to resolve the problem.
If you are not comfortable working on it yourself then you may please use following link to get list of TV repair shops in area which will help to get repair quote...
I trust my input will help you out. Please feel free to respond if you have any additional questions.
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