Hey guys so someone was throwing away this tv that didnt work. Brought it home and turned it on. The plasma looks like it tries to come on it would show pixelation very fantly and a bunch of purple dots just fades away. You have to disconnect the tv wait for the caps to drain turn it back on and it does the same and fades away. So i chcked with my meter the power supply for VA VS and VS i think if i could remember is 205V and im only getting 10V. VA is suppose to be 50-60 i think and i get 6v. So i am guessing the power supply is bad? I did plug in a bluray player and i am getting sound.
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Re: Samsung pn58c550 purple pixelation then fades
Check the power board Vs and Ve with the power lead to Ysus disconnected . If the voltages come up to very close to those shown on panel sticker then problem Y side. If no go then disconnect X board power and recheck voltages. If still no go would then make power board likely suspect. -
Re: Samsung pn58c550 purple pixelation then fades
I did that and still samething. Voltage is at 16 on both.Comment
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Re: Samsung pn58c550 purple pixelation then fades
As you have sound the main is turning on power supply so time to check that other connector voltages on power board are ok then check board caps fuses diodes etc but to get advice from more experienced members they need clear pics of whole rear of tv and close up of power board.Comment
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Re: Samsung pn58c550 purple pixelation then fades
Also just check connectors main to power for vs-on and see what voltages on that line when set in standby and when on pressed.Comment
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Re: Samsung pn58c550 purple pixelation then fades
Ok so i ordered a new power supply for my tv. Samething, stand by light kicks on and blinking like its powering on. Does samething picture pixelates and fades away. I also get sound. But no picture.Comment
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Re: Samsung pn58c550 purple pixelation then fades
Here are pictures of the boards i forgot to mention i also replaced the Y board and samething.Attached FilesComment
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