After looking everywhere I'm guessing this is an aperture grille problem. Please correct me if I'm wrong.
It seems there's no coming back from this damage, right?
Is this an aperture grille damage problem? Sony PVM rainbow
Is this an aperture grille damage problem? Sony PVM rainbow
Last edited by morozmatt on Wed Aug 05, 2020 10:52 am, edited 1 time in total.
Re: Is this an aperture grille damage problem? Sony PVM rain
images arent working
Re: Is this an aperture grille damage problem? Sony PVM rain
Right click and open image in a new tab to see the rainbow.
Re: Is this an aperture grille damage problem? Sony PVM rain
Pics hopefully show now.
Re: Is this an aperture grille damage problem? Sony PVM rain
From my limited knowledge on CRTs, I would say very possibly. You appear to have good convergence in the crosshatch but the rainbow effect is over it. It doesnt really look like a purity issue either, but you could, if you felt comfortable, try to move the yoke a bit in and out and possibly rotate the rings a bit to see how, if at all, you can affect it. Indeed its probably fucked though.
Re: Is this an aperture grille damage problem? Sony PVM rain
My money would be on yes. Any issues pertaining to the yoke and convergence/purity ring positions should result in more splotchy discoloration, as far as I know.
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Re: Is this an aperture grille damage problem? Sony PVM rain
What happens if you use a degassing tool on it? It doesn't look like that is the issue, but I'm curious if it has an effect on it.
Re: Is this an aperture grille damage problem? Sony PVM rain
Unfortunately I just got confirmation from Steve of Retro Tech"
"Hey, sorry but your tube is shot. That means the grill has broken free internally inside the tube. You'll need to replace that tube."
"Hey, sorry but your tube is shot. That means the grill has broken free internally inside the tube. You'll need to replace that tube."