Originally Posted by Torkens
I've been reading this forum for some quite time, but just registered today. We bought a 42LD550 when it came out about 5 years ago, and it has performed flawlesly until last month when it ran into the very well known "HDMI No Signal" issues; the other inputs remained unnafected as other users commented. Based on my research there's no other way to solve this issue than replacing the motherboard EBT60932317 ($229 + TAX + S&H in Amazon), so we bought a new one, I just replaced it yesterday and voilá!, HDMI again. The card came with newer cables so I took the time to replace them as well, the process it's very simple and straightforward, perhaps it's same solution any TV technician would recomend when running into these kind of problems, but a lot cheaper if taking the DIY route of course; it doesn't even need a firmware update. The only drawback it's the high price of the new part which made me think for a brief moment if it was worth to fix a 5 year old TV or buy a new one, but 4k and such are not in my budget plans in the near future.
I , too, have been reading this forum thread for as long as it's been here. Posted a couple of times but mostly gained an enormous amount information and so many bits and pieces regarding my LG 42LD550 I am eternally grateful to those stalwart posters and thread starter.
MY LD550 has also performed flawlessly over the years, I got it brand new as soon as it was reviewed. I just happened to be looking for a new tv at that exact time and was lucky, so far.I had been looking around for the potential upcoming costs I would need to prepare for (in the DIY category) ; anyone can call the tech.
I really appreciate you for the time you took to post this experience as I am preparing for the eventuality of the motherboard failure as a bad case scenario-I do not know, yet, what a worst case might be. I saw the Amazon listing for a capacitor replacement kit for about $16 (at this time) for the screen issue the LCD alternatives LD42550-UD is how it is listed there
I have racked up lots of hours on this, way beyond the "normal" so am far nearer the maximum guess of how many hours these are good for-which is for the screen , I think. So, seeing these posts really only make me feel better psychologically, but in reality, something other than what i plan for or expect to go will necessitate a new model in the end.