Panasonic Plasma Vertical tearing
Have a TH-42PX50U that has a vertical tearing issue, ive attached a pic. all voltages check out fine, was wondering if this looks familiar to anyone? Suspecting lower buffer board. any info would be greatly appreciated!
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Re: Panasonic Plasma Vertical tearing
yeah, that's messed up. I'm thinking along the lines of a sustain board maybe SS or SC or even sd/su buffers. That does not narrow it down much but that's my gut feelingLast edited by tw2005; 10-07-2015, 09:02 PM. -
Re: Panasonic Plasma Vertical tearing
i did replace the xmain, or "SS" board. no changeComment
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Re: Panasonic Plasma Vertical tearing
I would check -Vad, Vsc, Vs, Va and Ve voltages.
I would suspect the SC board.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: Panasonic Plasma Vertical tearing
my vscn is off, only gettin 47, SM calls for +130V +/-4v. new SC on the way i will update when it arrives. originally thought lower buffers but noticed this set uses uppers as well and is split into 3 section totaling 6. so the chances all 6 went bad are not very likely.Comment
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Re: Panasonic Plasma Vertical tearing
Remember Vscn needs to be measured across the test point or from -Vad (manual should say how/where to test)
47V is plausible if -Vad is low, e.g. only -90V or -100V on older panels, as Vscan usually 150V above -Vad.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: Panasonic Plasma Vertical tearing
it was the y sustain, picture is great and my vscn is right back to +132V
SOLVEDComment
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