Hey everyone!
I am having problems with my plasma tv, so fixing it is my new project, i'll explain here what happened so far!
It's a:
SAMSUNG Plasma
Model: PS50C550G1W
Model Code: PS50C550G1WXXC
Version: IZ02
Manufactured in January of 2011
I was working fine, until a couple of months ago it turned off, and when on and of with a clicking noise, and didn't answer the remote. When it was on, the screen was a dark grey that could hardly be seen.
Well, for what i read on the symptons, it could be the power supply board, so i ordered one on ebay.
When the psu board arriver, i mounted it on the tv, and nothing..
Well, i gave up and took it to a local reapair shop to ask for quotes, and he told me it needed to take a Y and the t-con boards, and gave me a crazy quote for the repair that i could with the same value just buy another used one just like mine. So i paid him for the checking and left there my old psu board asking him just to check if it was ok, because for the looks of it, it should be ok, since it had just the same symptons with the new board. Some days latter i came back there to ask him about the psu board condition and he came with excuses saying he sent it to the trash, he said he understood i told him it was broken.. he was lying.. i think that for sure he used it to fix another samsung plasma that he had there fixing that when i when there with mine he told me it had a psu problem just like mine.. i should know better, in the past i already had seen he was too expensive and a cheater, but i thought i should give it another try.. ok.. that went well..
well, i ordered new y and t-con boards and while i waited them to arrive, i took the opportunity to check the components on the old boards. for the looks of it, the Y-main board has some mosfets burned. but the t-con didnt look to have any problem, but what the hell i got one for cheap. I also checked the Y sustain buffer board as in the Tom66 video http://www.youtube.com/watch?v=51SZsfH60EY and it looked ok.
Whell, the waiting was really hard for the boards to arrive, but when they did, the i checked the Y board for burned mosfets and everything ok, so i mounted everything up.. deception.. it kept on clicking for around 4 or 5 times and then stopped fully disconnected and only with the fixed red led just as before, but at least now the remote turns on the tv, even if she turns off after 10 or 15 seconds but hey.. thats something.. lol..
i took the y board out and now it has shorted mosfets.. and i think the psu has also some now..
Some thing to consider, the Y-Main board was exactly the same part number, date and version, but had some things a bit different from my original one, mine had some more caps, can the new one coming from the uk be incompatible??
Some measurements:
Factory sticker values say:
Va = 55v
Vs = 211v
Vsc = -185v
Ve = 83v
2Ve = 74
With everyting mounted, when turning on the tv, until i had only about 10 or 15 seconds until it turned off, but even then here is the 10/15 second measurements:
Va= nothing
Vs= 22v
Vg=15,5v
without the X-board
the same 10/15seconds on/off
Va= nothing
Vs= 22v
Vg=15,5v
without the Y and X boards (when disconnecting the Y, as the X is connected to the Y, they are both disconnected)
Va= 56,7v
Vs= 219v
Vg=15,5v
Well.. now im stuck without knowing what else to do or try.. and my boards, are they fixable? if i change the mosfets, check the caps and change any burned caps, will it do to fix them? or will i have to order new one's??
Thanks for reading and for any help!
Best regards everyone
*
I am having problems with my plasma tv, so fixing it is my new project, i'll explain here what happened so far!
It's a:
SAMSUNG Plasma
Model: PS50C550G1W
Model Code: PS50C550G1WXXC
Version: IZ02
Manufactured in January of 2011
I was working fine, until a couple of months ago it turned off, and when on and of with a clicking noise, and didn't answer the remote. When it was on, the screen was a dark grey that could hardly be seen.
Well, for what i read on the symptons, it could be the power supply board, so i ordered one on ebay.
When the psu board arriver, i mounted it on the tv, and nothing..
Well, i gave up and took it to a local reapair shop to ask for quotes, and he told me it needed to take a Y and the t-con boards, and gave me a crazy quote for the repair that i could with the same value just buy another used one just like mine. So i paid him for the checking and left there my old psu board asking him just to check if it was ok, because for the looks of it, it should be ok, since it had just the same symptons with the new board. Some days latter i came back there to ask him about the psu board condition and he came with excuses saying he sent it to the trash, he said he understood i told him it was broken.. he was lying.. i think that for sure he used it to fix another samsung plasma that he had there fixing that when i when there with mine he told me it had a psu problem just like mine.. i should know better, in the past i already had seen he was too expensive and a cheater, but i thought i should give it another try.. ok.. that went well..
well, i ordered new y and t-con boards and while i waited them to arrive, i took the opportunity to check the components on the old boards. for the looks of it, the Y-main board has some mosfets burned. but the t-con didnt look to have any problem, but what the hell i got one for cheap. I also checked the Y sustain buffer board as in the Tom66 video http://www.youtube.com/watch?v=51SZsfH60EY and it looked ok.
Whell, the waiting was really hard for the boards to arrive, but when they did, the i checked the Y board for burned mosfets and everything ok, so i mounted everything up.. deception.. it kept on clicking for around 4 or 5 times and then stopped fully disconnected and only with the fixed red led just as before, but at least now the remote turns on the tv, even if she turns off after 10 or 15 seconds but hey.. thats something.. lol..
i took the y board out and now it has shorted mosfets.. and i think the psu has also some now..
Some thing to consider, the Y-Main board was exactly the same part number, date and version, but had some things a bit different from my original one, mine had some more caps, can the new one coming from the uk be incompatible??
Some measurements:
Factory sticker values say:
Va = 55v
Vs = 211v
Vsc = -185v
Ve = 83v
2Ve = 74
With everyting mounted, when turning on the tv, until i had only about 10 or 15 seconds until it turned off, but even then here is the 10/15 second measurements:
Va= nothing
Vs= 22v
Vg=15,5v
without the X-board
the same 10/15seconds on/off
Va= nothing
Vs= 22v
Vg=15,5v
without the Y and X boards (when disconnecting the Y, as the X is connected to the Y, they are both disconnected)
Va= 56,7v
Vs= 219v
Vg=15,5v
Well.. now im stuck without knowing what else to do or try.. and my boards, are they fixable? if i change the mosfets, check the caps and change any burned caps, will it do to fix them? or will i have to order new one's??
Thanks for reading and for any help!
Best regards everyone
*