I have been watching my LG 42LD520 for 2 months. Today turned it on and there is no sound. Any ideas??

LG LED TV has no picture (black screen) but still sound ...

www.tomsguide.com/answers/.../led-picture-black-screen-sound-fixed.ht...

My 32' LG LED TV has suddenly lost picture! The sound is all right but the Screen is pitch black. After switching it on the picture flashes for a second and then the screen goes completely black.

LCD Easy Fix (sound but no picture) - YouTube

? 4:52
https://www.youtube.com/watch?v=IBRE1Dcyxp4
Jan 13, 2012 - Uploaded by Clay Whitehead
TV Has Sound But No Picture Troubleshooting Guide - Duration: 2:30. by Repair.com 472,733 views. 2:30. LG LCD TV REPAIR -NO PICTURE ...

If you are using a powerstrip may not be supplying enough power to run the LG HDTV and your HD receiver. If you are using a powerstrip make sure the receiver is plugged directly into the wall. Otherwise this may be a grounding issue please reply if this doesn't work and we can look into some other possibilities.
Daniel Busa
DISH Network
Customer Service

If it's only a month old, I don't suggest opening it up at all, as it will void your warranty.
Get it replaced under the warranty - that's what it's there for.

If however you live in some remote corner of the earth, and it will take you 8 months to get it to a location where you can get it replaced, here's what's likely going on, and how to fix it.

There's a good chance you have failing electrolytic capacitors either in the power section or the inverter section or both.
Any caps in these sections that look bulged at the top, or bulged/leaking at the bottom need to be replaced.
If you repeatedly turn it off and on, eventually it'll probably stay on, but every time you turn it off, the TV will get harder and harder to start up until one day it just won't.
Sometimes you have to do the opposite to start it up and unplug it for some time and then try again.

If you aren't tech savvy, don't worry, read the rest of this solution and watch the videos.

If you are handy with a soldering iron and can identify the power supply and inverter / FM section for the backlights, an inexpensive handful of capacitors will likely fix you right up.
Match the capacitance on the capacitors. Go over voltage if you can, and still have them fit.
IE - it's not a bad idea to replace a 10V cap with a 16V or 25V or even a 50V, but don't replace a 680uF cap with a 500uF or a 1000uF (unless you are positive it's only doing ripple filtering, and even then, you should go OVER, not under the uF rating).

Most of the caps that go are 10V 1000uF or 3300uF.

I found some great videos of the procedure (for many Samsungs with the same issue) on youtube.

http://www.youtube.com/watch?v=Mm51C_RDIZE
http://www.youtube.com/watch?v=BNHHrgX_6cs&feature=related
http://www.youtube.com/watch?v=8l0AUj8QUkg&NR=1&feature=fvwp
http://www.youtube.com/watch?v=Y7b_nTaZYcU&feature=related

As you can see, this issue spans plasma TVs, as well as large and small LCD TVs and monitors.
The parts are cheap, and skill required is minimal.

It means you have a panel display driver problem. A part of your display is being triggered wrong.
If you are within warranty period call service center for help.

That indicates a problem with loose inverters or the inverter board itself needing to be replaced.

Something caught in the spinning agitator?

I have had the same problem off and on with my 47LG70 for months. When the "popping" noise happens, the blue light in the corner stays on, so I know the tv is still on (sometimes I still have sound, sometimes I don't). Sometimes the screen goes black, but other times it is blue. If I turn the tv off then on again, it might stay on for seconds, minutes or hours. It's been very frustrating.

This seemed to happen right after I got my new Comcast box, which came with an HDMI 1.3 cable. I read somewhere online that this tv might not be compatible with that cable, so I unplugged it and am using component cables again. I just did this today, so I don't know if it will work, but so far the tv has been on for 30 minutes with no problems.

I'm pretty ignorant about HDMI compared to component cables. I imagine I will not get as good a picture with the component cables, but I am willing to sacrifice quality if I can just get the darn thing to work. Mine is also only 18 months old.

Hope this helps. If it doesn't, maybe someone else out there can help us both.

mcdevito75 here, YES! that"s normal, all Date watches go up to 31, as some months have 31 days, watch makers haven"t come out with a mechanism that will automatically jump the 31 to the 1, well not that I know of, you simply turn the hands another 24 hours from 31 to 1 if the specific month ends with only 30 days.

I think there would have been a minute spring coming from the back of the watch module to the backplate of the watch - this spring carried a vibration / beep which echoed off the backplate. Chances are you have damaged this spring during battery change - as i did with my gShock. Basically it's nackered!

A lot of these sets have a software upgrade that can take care of intermittent power on issues, check with the LG website and see if there is noe available for your model set, I have seen this solve these problems numerous times