My model is the LN52A550P3FXZA. I replaced the caps on the power supply board and that got rid of the SCREECH from hell, and the on and off cycles from eight cycles to two on and off cycles. That was a plus and I could have lived with that. I could have lived with 2 cycles and no screech. But since I had it all apart, I went to the main board as suggested here, and un-soldered the surface mounted cap and soldered in the 47uf barrel cap with an ESR of .30 ohms and put the board back in. Its been about 12 hours, I turned it on and off many times, letting it cool off and then back on, and it has come on the first try every time that I've turned it on. Thank You for your short video!
I have to be honest, my soldering skills are bad enough that I expected to completely fry the board, but I figured it couldn’t get much worse than it already was. Thank you so much for fixing my TV!
This video SHOULD have thousands of views! They want to sell you a kit with difficult to solder ic's ... but my research uncovered your video and others that just needed a repair at this capacitor. In my case I had a vented cap on the power board and a cold solder joint at the cap you point out here on the logic board. Easy fix. Plus who can't find a 47uf barrel cap in a junk pile! Great video and thanks - I promptly fixed my TV after watching this!!!
Thanks for posting this, i was scratching my head looking for a fault with the PS board because of the power cycling, turns out the problem is on the main board!
My model is the LN52A550P3FXZA. I replaced the caps on the power supply board and that got rid of the SCREECH from hell, and the on and off cycles from eight cycles to two on and off cycles. That was a plus and I could have lived with that. I could have lived with 2 cycles and no screech. But since I had it all apart, I went to the main board as suggested here, and un-soldered the surface mounted cap and soldered in the 47uf barrel cap with an ESR of .30 ohms and put the board back in. Its been about 12 hours, I turned it on and off many times, letting it cool off and then back on, and it has come on the first try every time that I've turned it on. Thank You for your short video!
I have to be honest, my soldering skills are bad enough that I expected to completely fry the board, but I figured it couldn’t get much worse than it already was. Thank you so much for fixing my TV!
No problem! Glad to help!
This video SHOULD have thousands of views! They want to sell you a kit with difficult to solder ic's ... but my research uncovered your video and others that just needed a repair at this capacitor. In my case I had a vented cap on the power board and a cold solder joint at the cap you point out here on the logic board. Easy fix. Plus who can't find a 47uf barrel cap in a junk pile! Great video and thanks - I promptly fixed my TV after watching this!!!
Great to hear you fixed yours! Please share the video, if possible!
@SleelS so, what happened?
Thanks for posting this, i was scratching my head looking for a fault with the PS board because of the power cycling, turns out the problem is on the main board!
Almost 3 years later and STILL WORKING LIKE NEW!
yes, I found the he most direct fix, and already had the $1 part !!!
Oh wow... No SMD soldering here :-)
But... If it works, that's all you want to know.
Good repair.
Yes you did it
Does the temperature on the capacitor matter?