Lg 50px1d 50in

I belive the screws you are speaking of are 5 mill 20 thred per , I have found them at local TV shop. They will give them to you if you ask. IF you can not find them local, e-mail me.
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Hello,

The problem is that there is a bad capacitor inside the unit, it is either on the main panel or the power panel. The popping sound you got was due to the fact that the lead on the capacitor was bridging, therefore causing some electrical popping sound.

Run a check on the main panel and the power panel for any bad capacitor and replace it with a new one. That way, your television will be in good condition once again.

Take care and good luck

Your power supply has failed and is providing to little power to the panel, you'll need to take it to a technician to fix it / replace the faulty power supply.

Either X,Y, or Z-boards seem to have developed a problem, when this happens it results in a 'sound-no-picture' condition. If its under warranty take it back, if not have your local tv repair center fix it for you....

Hi you need the y-sus board. You May find it @ partstore.com Thanks.

Z-Sustain PCB will cure it.

It is inside the TV, on the Right Hand Side.

www.chsinteractive.co.uk or Google for a replacement.

Hi , I recently had the same problem which I was determined to fix . So I did a few weeks of research to find that it was the Y SUS board which burns out. I'm sure you realized that the TV gets hot. Personally I think this is why. circuit boards don't like heat and I've learned that the cooling fans are a joke. I replaced the board and got my picture back. I proved the fan theory because after the screen started to act up. I placed a cooling fan near the vent holes on top and the problem cleared right up,It also helps if you lower the brightness which helps out on the heat situation.I will soon be adding a fan with a temp. sensor. This shoud help if your screen has lines when you initially turn the cool TV on.then I have Some other costless solutions. Hope this helped these are great TV's and like our cars we maintain them not throw them away..................................Mr Wiseman

TV was on with no picture problem. Left the room and when I returned the picture was very dim. Turned system off and turned back on. Picture didn't change, but heard a loud pop from the back of the TV.

The popping noise you heard it's probably a capacitor blowing up in the power supply circuitry. If the TV is less than one year old, still covered under manufacturers warranty.
Let me know if you need any more assistant let me know.