Hi all, Ive been searching through this incredible site but I cant seem to find the answer to my problem... i have a PN42C450B1DXZA plasma tv, I found shorts on both the x and y main, my problem is i removed the shorted fets from the heat sink of the y main thinking they were all the same (I know super rookie mistake) and now I'm not sure what goes where, i realized this before i repaired my x main so I didn't repeat the mistake there but i was wondering if anyone maybe had a picture or maybe a list of the transistors? Anything would be a great help!
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Re: Samsung 42u2p y main transistors???
I am about to open one up..I have audio and no video..what would you like me to post pics of? -
Re: Samsung 42u2p y main transistors???
Exact same model number set.Comment
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Re: Samsung 42u2p y main transistors???
Hi there sorry for the late reply, I'm lost on the y main, I pulled all what I believe are the mosfets on that board, it's a Samsung pn42c450b1d.. tia!!Comment
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Re: Samsung 42u2p y main transistors???
The Y Main was my issue. although buffer board did not read any shorts, I replaced both the Y main and buffer. Whatever is shorted on it was shorting 2 of the IGBTs on the X Main. Working like a champ after firmware upgrade.Comment
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Re: Samsung 42u2p y main transistors???
That’s awesome! I got mine to fire up but I shorted the igbts again, by chance were you able to see the parts I mentioned? I can’t for the life of me remember where they go! I’m just getting started in this hobby and I got 2 lcds back to life but this plasma is a pain in my neck!!Comment
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Re: Samsung 42u2p y main transistors???
I will make you a list tonight so you can get it back together.Comment
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Re: Samsung 42u2p y main transistors???
I love plasmas for the quality they deliver.Comment
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Re: Samsung 42u2p y main transistors???
starting at left under heat sink
sf10A400H RJP30E2 RJP30E2 STTH02R06FP RJP63F3 RJP30E2 SF10A400H
K10A60D is farthest to right
That should get you there.
Q5008 is the only one that shows to be shorted on my board.Comment
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Re: Samsung 42u2p y main transistors???
D5004-sf10A400H D5003-RJP30E2 Q5007-RJP30E2 D5000-STTH02R06FP Q5000-RJP63F3 Q5008-RJP30E2 D5003-SF10A400H
Q5013-K10A60D is farthest to right
MORE DETAIL FOR YOU.
LJComment
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Re: Samsung 42u2p y main transistors???
Your a life saver! I’ll try and get it back together tomorrow and let you know how it goes! I was literally searching the web for like 2 weeks and couldn’t find anything I freaking owe you one!!Comment
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Re: Samsung 42u2p y main transistors???
Glad I could help!Comment
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Hi everyone,
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Initially, I suspected an issue with the PSU, so I took it to a repair center. They tested it and confirmed that the PSU works perfectly, even on other TVs. Based on that, I started investigating the main board.
I disconnected the main board from the PSU, and the backlight turned on, which seems to confirm the main board is the issue.... -
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Hello!
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The fact is that it seems that I can replace the main by a, say, "normal". I think the one that corresponds is NU7105, ref BN94-02635. At work, which is a convention center and a hotel, I have many TVs from 55" to 85" that... -
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