LG 47LC7DF LCD TV Remote Sensor not working

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.

Sounds like the IR sensor in the TV may be faulty, since you have now tried a couple remotes. Make sure nothing is on the IR sensor like tape, plastic, etc. IR sensor repairs are a fairly cheap and easy repair that can be done at your local tv repair shop. If you are still in warranty you can call Philips and tell them that you tried 2 remotes (1 brand new) on the TV and neither work. They should offer you a repair option. If you have any questions regarding your Philips warranty let me know.

Hello
Check these codes.

065 244 405 318 037 398 191 459 245 389 060 275

742

743

726

508

584

1* Select any channel on the TV.

2* Point your Sky+ remote control away from the TV and press the tv button.

3* Press and hold down the Select and red buttons simultaneously on the Sky+ remote control until the red light at the top of the Sky+ remote control flashes twice.

4* Input the 3 digit number from the Sky+ remote control codes then press the Select button. The red light at the top of the Sky+ remote control should flash twice.

5*

Point the Sky+ remote control at the TV and try the volume button.

OK.

If you are operating with remote I guess the remote is faulty. Try operating it with the remote placed in another room & observe if the sound still decreases, else the button(sound) on your TV is itself faulty. Since you have just bought it, its still under warranty - contact dealer.
If its the remote, then change the remote

This could be a bug in the firmware. LG has a firmware upgrade which is loaded onto a USB stick and plugged into the HMDI port and the TV is reflashed. Try going into the menu and doing a factory reset. Just incase the TV has somehow gone into a diagnostic channel search mode. This may clear the problem.

sparrow00, your fix worked for me, and I think I know why. The 1/8" remote input jack on the back of the TV has electrical contacts inside that are probably there to sense the presence of a plug-in remote. When they detect the insertion of this plug they disable the front panel IR (infrared) receiver and the TV only responds to this plugged-in remote and the buttons on the TV itself. After some period of time these contacts get corroded and the circuit is no longer completed between them. The TV now thinks an external remote is plugged in, and it ignores its own front panel IR receiver.

When you plug a 1/8" plug into this remote socket on the back of the TV it wipes away the corrosion. When you remove the plug the internal contacts conduct properly again and the TV responds to its front panel IR receiver. For best results you should plug a 1/8" headphone plug into this remote jack and twist it a few times, then pull it out and repeat several times. Repeat every frew months or whenever the TV acts up.
Thanks for your solution!

The sensors do tend to go out on these tv's. You can call an electronics repair man to have them come to you.
It requires soldering the old and new sensor board for replacement.

This set should still be under warranty. Inquire about warranty service. DO NOT open it up as that would void the warranty. There is a problem with either the logic board or the panel itself. In either case, it will be covered under warranty.
Dan

Most Polaroid flat-screen TVs won't program to the Uverse remotes. Try buying a different universal remote that shows coding for both Uverse and Polaroid.

the code for this TV is 004