Samsung PN60E550D1FXZA Won't power on

[MagicSmoke]

Re: Samsung PN60E550D1FXZA Won't power on

Bump

[MagicSmoke]

Re: Samsung PN60E550D1FXZA Won't power on

So I'm still playing around with this set. Finally found another Y-main to try and still have the same problem. I have removed the bezel and can see no cracks.

To update I changed PSU, X & Y main boards, Logic board twice, and main control board. No luck yet, VE on either Xmain wont read more than 15-19v as in the previous post's testing.

ERC only shows 3 volts. -44v on Vscan should be -198v

X & Y Buffers connected or not to panel makes no difference in voltage readings, buffers connected or not to mains makes no difference in voltage readings. I don't understand this^

What other fault would cause the logic board led to show a problem when 2 different Y mains are connected to LVDS cable? Maybe the cable itself? I looked it over but did not visually see a problem.

[Parts4Pros]

Re: Samsung PN60E550D1FXZA Won't power on

HI guys I am new here. I have the same issue but I will get the VS it goes up to 210V and then it start to discharge. I tried the jumper and no change. Could you please help me.

Thank you
Sean

[MagicSmoke]

Re: Samsung PN60E550D1FXZA Won't power on

Finally got some direction where to look for problem. drussel figured out it is the 3BR0665JZ controller chip @ U5014 causing the problem.

His thread here https://www.badcaps.net/forum/showth...t=43075&page=2

I put my Y main in freezer and it turned on but with this problem, vertical snow lines each side of screen.

Thinking I may need to reseat the connectors on E and F buffers? Here is a pic.

[grennx]

Re: Samsung PN60E550D1FXZA Won't power on

What other fixes did you implement?
And what was your final outcome?