OLD RUNCO CPD 770 -- need help/parts?

[Probass]

Howdy ... new here and wondering if anyone knows if there are any parts available for this unit Runco model CPD-770. This is a really big unit hanging from the ceiling in my basement .. the issue I have is that I left it on a lot through the years and across the bottom of the screen is a faint "burn" of the red FOX news channel stripes and logo!

I really do not know anything about this but I believe that the only"fix" is to replace the red gun or tube? I think it has 7" tubes?

Also heard there was a line doubler or something that could increase the resolution a bit?

Sorry for my ignorance but I really just don't know much about what to do .. I just watch the thing!

Any help would be appreciated!

thanks

[cngbrick]

As you have discovered, static images will quickly burn into the phosphor of CRT projector tubes.

You have a couple of alternatives to fix this: replace the tube(s) affected or reduce the size of the image on the tube face so that the burn-in marks don't show anymore.

If you opt for the second solution you will need to move the projector farther away from the screen to maintain the same image size and increase the contrast. Increasing contrast will shorten the life remaining in all three tubes.

Curt Palme is likely your best bet for parts if you or a friend can do the work. Shipping charges alone will probably exceed the value of the projector if you need to send the whole unit out for servicing.

RT

[Probass]

Thanks for the help!