[rescue] Sun 21" CRTs (was: Feedback on Sun 24" LCD?)

[wa2egp at att.net]

-------------- Original message ----------------------
From: "Robert Darlington" <rdarlington at gmail.com>
>
> Hey, my NeXT color monitor does something similar.  It ticks or
> something, the picture jumps a little bit, and then it's fine again
> for a couple of minutes.   My guess is something is arcing over, but
> don't know enough about how these things are built to know for sure.
> Any ideas?   Also, is anybody getting rid of a good color NeXT monitor
> near New Mexico by chance? (can't hurt to ask!)
> 
> Thanks,
> Bob
> 
> > I have one of each... and the true flat had an issue recently where it made
> > a noise
> > and the screen went fuzzy, it self corrected, did it again, self corrected,
> > then did it
> > again, and wasn't correcting... so I turned it off and back on and it
> > corrected.
> >
> > Then I think it did it one more time.  It hasn't done it since, and the
> > monitor is
> > crisp.. only thing is on the dark blue/purplish background when waking it
> > up,
> > I see some fine red lines running 30 degree 'uphill' from left to right on
> > the
> > background... but then the windows (mostly white) refresh, and then if I
> > switch
> > to an empty desktop I don't see it... so unsure what it is.
> >
> > Are these notorious for failing ?  Should I be planning a retirement party
> > for it ?
> > (I surely wouldn't mind saving the power, but it is a damn nice CRT, so I'd
> > hate
> > to lose it).
> >
> > -- Curt

If you guys are into soldering try resoldering the board connections around the HV supply.  I had a monitor that was notorious for having cold solder joints where the flyback transformer was on the board.  Same problem.  A little resoldering, haven't had a problem in years.

Bob