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The failure to IR sensor inside the TV is a very rare case. Check the infrared emission to the remote control first. Check it with fresh batteries. Make sure that it works well, before trying to replace the infrared sensor inside the TV. If you wish to get some details, http://electronicshelponline.blogspot.com/ Pull up older posts.
What you are dealing with is not a bad remote controller, the problem is from your IR Sensor. You will need to replace this IR Sensor. You Vizio TV has a common defect with the IR Sensor. Make sure you order the revised version so you don't encounter this problem again. You can find the IR Sensor here: 3637 0022 0189 0171 1671 0892 Vizio IR Sensor
tried with reset doesn't work, ok it could be the IR sensor at the front panel of the tv doesn't work. but before you replace it you need to ensure if your remote controller is working. have you tried to check the remote with camera trick just to know if the remote controller is sending light to the IR sensor of the tv.
Visit this site for more details.Type in the site name "Electro-help" either to Google or Yahoo search box [not in the address bar of your browser], and click search.It is an electronic equipments service help site.All details you want are there.Note the position of hyphen in between words in site name, when you type it in.The site will appear as it is in web; subtitled as electronics equipments' repair help.
Before I answer your question let me clarify something..
What sensor you need to replace is it on the remote IR (infrared) or the receiver on your TV?
Did you try other remote control?
How did you say that you need to replace the IR sensor or receiver on your TV?
To test the remote please use a digital camera..How? place the shot to infrared of your remote then look at the screen of your camera after that press any button on your remote and look if the IR sensor lights up..
Please answer all my clarifications for me to diagnose the exact problem..Because replacing of IR sensor on TV is difficult..
Thank you for using fixya and choosing my service..
You can confirm your remote's IR output by pointing to the phone camera and if the remote works it will be seen as a flash on the camera. Now after confirming the remote then the the IR detector on teh TV can be checked. It is always mounted on the FRONT panel and is a small DIODE mounted to face the IR panel ****. It is easily seen and can be checked using a multimeter . In the Ohmn's range in one direction a flash of light will increase the flow and continuity when the probes are held across the diode. If teh IR is good then it is a fault on the processor controller.
Please follow this procedure to find the exact problem.
Check the battery of the remote.If your battery is 1.5vdc x2,the reading should be 1.5vdc x2 also! or 1.4vdc,tolerance to response the remote.Replace the battery if it is below on the tolerance voltage.
Check the IR sensor using a digital camera or cell phone camera.
Place the camera in the front of IR sensor then push any of the button to activate the remote.If your IR sensor flashes on the camera it means you IR sensor is good if not flashes on the camera replace it.
I hope this information will be helpful.Thank you very much.
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