Emerson EF 2703 - Infrared Beam is not functioning
Any thoughts on repair of an Emerson EWF 2703 - infrared beam is not functioning. I have replaced the remote exact duplicate and still does not function. Tested remote device against the raidio for the "hum" measure of functioning - and it is.
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Check the remote control for its infra-red emission. Check it with fresh batteries. Check by pressing all the buttons on it; and see whether all of it generates infrared signal while pressing. If it is found OK, check and replace the infrared sensor inside the TV. If you wish to get some details; check the site linked here. It has details about how to check a remote control; by one among the post. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/ If the remote control is found OK; check and replace the infra-red sensor inside the TV. Contact any service technician.
Check the remote control for its infrared emission first. Check it with fresh batteries. If
you wish to get more details, check this site. Pull up older posts there. Check the site with patience, as it has over
2350 posts now. All are related to
electronic equipment repair help. If
you check the site in Timeslide option, which can be selected from the dropdown
list at the top left side of the display window, it will make search easy. Detailed description about how to check and repair a remote control is given in detail by one among the posts. http://electronicshelponline.blogspot.com/
Check the soldering points at the infrared LED of the remote. You have to open to acces this point. If fould loose soldered, resodler that point by applying a little more solder. If it d not help you check the remote control for its infrared emission. You can get all details about how to repair and chec the remote control by entering the folloing blog site.
please insert dots in place of [dot]s mentioned above, and google for it. Will display a site named "Electro-Help". You can see details here.
Most likely the problem is with the remote. The infrared LED transmitter in the remote could be weak. If the remote only works when it is close to the TV then it is faulty. Try replacing the batteries first, the maybe flat. When you replace them and you still have trouble operating the TV and it only works at close range then you can purchase an infrared LED transmitter form an electronics parts store and replace the this LED in the remote. NOTE the LED is a polarised device and only work if inserted correctly. The LED will have a small flat surface on the rim of the LED next to the shorter leg wire is the K (cathode) - lead, the longer leg wire is the A (anode) + lead. Make sure it is fitted to the circuit board the right way around before you solder the LED to the circuit board.
Please check & ensure the infrared is emiting from the remote control. Though we cant see this infrared beam with bare eyes, there is a trick to do so in http://www.unique-stuff.co.cc/fixing_remote_control_check_infrared.html Most of the problems is weakened infared beam. Replace the batteries when needed. Hope this fix the remote control problem.
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.
Most likely since you dropped the remote than it stopped working, It is most likely the remote. Some universal remotes say they have the code for your television but they do not. Because lots of different manufactures make televisons under different names. Try a better universal. If it does turn out to be the piece in the television, You will probably have to have it serviced by a professional