I purchased four 2200uf @ 25v capacitor’s for $8 at that same repair shop. I upgraded to 25v because these will run cooler. The tv came with 10v Samxon caps that seem to be problematic in all the units they were used in. Do not buy Samxon if you do this yourself.... I opened the set by taking off the plastic back panel and then by removing the second metal panel. There are three boards and a hard drive. The board on the far left just above where the plug goes in is the power supply board. There are five data cables and one red power cable attached to it that can be removed simply by unplugging them. The board is fastened to the unit with five small screws, one on each corner and one in the middle of the right side. If you look for three green capacitors grouped together around the middle of the board and slightly off to the right, you will probably see one that is bulging out at the top. This is most likely "C235", the main problem. The other three caps that need replacing are C202, C201 and C219. C219 is closer to the top part of the board.....
The process to replace is simple, believe it or not, and it could save you hundreds of dollars. 1, Go to RadioShack and buy a cheap soldering iron and a small roll of solder. 2, Buy four, 2200uf @ 25v capacitors, online or at an electronics store. 3, Plug the soldering iron in and let it heat up. 4, Locate C235 on the back side of the board and mark the negative terminal with a felt tip marker (you want to make sure that you put the negative terminal on the capacitor through the right hole, otherwise you will pop the cap. The negative terminal is clearly marker on all the capacitors). 5, With needle nose pliers, grip the cap and pull down while heating up the terminals. The cap will eventually come out. 6, Put the new cap in (you may need to heat the solder that is left on the board to clear the hole so it can push through). 6, When both terminals are through, bend them slightly so it stays in place. Take the solder and stretch out a few inches off the roll and while holding it in one hand, lightly touch the base of the terminal where it comes through the board, with the soldering iron and the solder at the same time. --- Try not to use too much solder.. you only need a tiny drop. This will solder the cap in place. 7, cut off the terminals close to the board with some snips and repeat this on the other three. 8, put the board back in, plug in the cables. Test the TV before putting the back panels on. It should work fine if all went well..... If you hear a pop than you reversed the terminals on a capacitor and that one will need to be redone correctly.... This might sound lengthy and potentially difficult but its worth a try. Otherwise you can pay someone to replace the entire board for BIG BUCKS with the same junk caps on it and have the same problem in a year or so. LG doesn’t want to take responsibility for this and I'm sure that it has cost a lot of people a lot of money for about $8 in parts........... This worked for me and it can work for anybody with the same problem.. Good Luck!
I replaced cap c235 only, and it fixed my problem, which was the screen being backlit, but no picture or sound. If I unplugged the TV for a few hours, it would work for about 1 minute.
I did not replace any other caps, because it worked after testing. I did not want to push my luck. My soldering skills leave alot to be desired. this whole process took about 2 hours, most of which was spent unscrewing 5 thousand screws to get to the power board! If opening the TV, and fooling with the components scares you, then do this.... Open the tv, and get to the power board. Unscrew it as described. Take out the board. Goto radio shack, and buy 4 caps, 220uf 25v ( 35v will work too ). Bring everything to your local TV repair shop, and ask them to replace c235, c201, c202, and c219. They shouldn't charge you more than $40 or so. Remember, most of the cost to repair a TV is labor. These guys at a TV repair shop, can remove and install capacitor in their sleep. It should also be noted that the cap235 that I replaced, was only very slightly bulged at the top, and I wouldn't have seen it unless I was looking for that particular one. Remember, a broken cap doesn't necessarily look blown up,
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Tuner is causing this problem when it comes on with blue screen no menu, But the shtting down unexpectly is the power supply unit going out and needs to be repaired and they cost $75.00 for this unti and the labor your looking arount $25 per hour and this is going to a atuherized repair please rate this fixa if you found it helped you or one notch below. Tip when rating experts you never want to thank them for trying this give them no rating at all when they helped you and there less inclided to answer free questions, thanks for using Fixya have a good afternoon.
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same problem, louder than usual click when it turns on, then it just glows no volume bar, no menu options nothing. The only thing it will do is turn back off with the same louder than usual click. Please Help
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