Violet pixels

[Behemot]

I've been asked about a Panasonic TX-P42G30E which supposedly has very high amount if violet pixels after start. They get normal when the TV warms up. I would say something like ribbon cold joint or maybe some TCon processor?

[narcisso]

Re: Violet pixels

Ahoj, podarilo sa Ti to vyriešiť ?

[tom66]

Re: Violet pixels

Most likely caused by low Vsus voltage.

[Behemot]

Re: Violet pixels

What's the cause? Bad caps?

[dick_barton]

Re: Violet pixels

Clear sharp photo's of the circuit boards is always helpful to others who may be able to spot a problem.

[Behemot]

Re: Violet pixels

If I had the TV, I would of course opened it and checked the caps already with ESR meter. The point was to discover if it may be a thing I can even repair. Otherwise there is no point dragging the TV to me over a long distance and me wasting the time with it…

[ReeceyBurger123]

Re: Violet pixels

Age on the Pdp, so increasing Vs means the panel pixels can discharge better/faster. With lower Vs they dont discharge properly and you get distortions like that when the panel ages, the gases become harder to light.