I read a previous question where it was suggested to use a cell phone camera to test the beam on the TV remote sensor. How is that done? What if the TV sensor is not working? We've tried several replacement remotes as well as changing the batteries in our original; nothing works.
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Re: Remote won't work
You can build a ir sensore box find parts at radioshack or you could open your remote clean contacs with mild soap and water nothing else and do not use any thing that may scratch then check to see if your (leds) light emiting diodes are broken of the pc board
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If it is an infrared remote... you can test it with a digital camera by turning the camera on and pointing the remote at the camera, then look at the viewfinder while pushing any button on the remote and if it is sending a signal you will see it illuminate in the viewfinder. This help identify if it is the remote or the device that is not working.
If no remotes work it is likely the remote receiver (ifrared and at front of set) is either dirty (lens) or bad.
A hint here is try original remote right up against the receiver--if works receiver is bad.
Note: original remote can be tested by a shop or even with most digital cameras--in a dark room the remote pointed at the camera and the lcd display will flash faintly when buttons on remote are pressed.
good day! i have read your problem, i teach some simple tips to check whether your remote control is working or not considering you have a good battery. 1st tip is buy checking it through you cellphone camera. turn on your camera and point your remote control on your camera lens the press any button on your remote. if your remot is good you could see some ligth flashing from your cellphone screen witch indicates that the infrared is working. if thereis no ligth at all the remote is deffective. if there is a ligth and still it does not work in your tv maybe the remote you have is no compatible with your unit or the sensor receiver itself of the unit is defective. i hope this will help you.
to check if remote is working and if got one CAMERA PHONE with display switch on camera and point remote into camera lens and press any button you will see the remote sensor flash on phone display if you see flashing then remote ok. check if batteries are in correct
Call Andrews Electronics and give the make, model number, and the circuuit board location (label printed in PCB next to IRreceiver). To check if your remote is transnmitting, point it a digital camera (cell phone camera will work just fine) and look at the screen on the camera while you press the buttons on the remote. The infrared light will appear as white on you camera display.
If the remote sensor cover is missing on the TV, the remote would still work but you may get other effects like the TV changing channels on it own. This is due to stray infra red signals. If it's not working at all I would suspect the remote control handset. You can test it by pointing it at a digital camera lens and watching the display screen on the camera. You should see white light comming from the remote when you press any of the buttons if it's working. Digital cameras can see infrared.
Test your remote by placing it in front of a video camera or web cam if you have one.. Press the buttons and watch the cam to see if you see the light coming from the remote.. The camera lens merely slows the light to a visable spectrum.. If no light your remote is not working... If light replace the sensor in the TV..