[TechAssist] Re: Zenith C3S chassis SJ2775BG SM question
- From: "Damon" <DAMON101@xxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 4 Dec 2001 03:04:55 -0500
Man, $75.00 instead of $500.00? That's a good price!
Damon Brunger
damon101@xxxxxxxxxxxxxx
Telrad Electronic Services
Ft Wayne, IN 46815
----- Original Message -----
From: "Jeff Dougherty" <jeff@xxxxxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, December 03, 2001 8:12 PM
Subject: [TechAssist] Re: Zenith C3S chassis SJ2775BG SM question
>
> A good investment in a CRT analyzer, used!
> I got one from E-Bay for $75.00. It saved a Zenith, I picked up and
decided
> to keep for myself.
> 27" stereo set.
>
> Jeff
> mailto:Jeff@xxxxxxxxxxxxxxxxxx www.9-11-2001tragedy.com
> FAX 1-413-280-0677
> Intrepid Video & Electronics
> Harrisburg, PA 17111
> 717-909-8844
> www.intrepid-video.com www.tech-repair.net www.thetoolcaddy.com
> ----- Original Message -----
> From: "Damon" <DAMON101@xxxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Monday, December 03, 2001 7:49 AM
> Subject: [TechAssist] Re: Zenith C3S chassis SJ2775BG SM question
>
>
> >
> > I've recently found that some of the crts using AKB circuits like yours
> have
> > been responding rather well to boosting the heater voltage. I have yet
to
> > know if the life of the crt is shortened somewhat or considerably....but
> > when the only other choice is replacement of the crt, getting a little
> more
> > life from an old tube may be a reasonable choice for your customer.
> > Damon Brunger
> > damon101@xxxxxxxxxxxxxx
> > Telrad Electronic Services
> > Ft Wayne, IN 46815
> > ----- Original Message -----
> > From: "Jon Garver" <jongar@xxxxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Monday, December 03, 2001 12:20 AM
> > Subject: [TechAssist] Re: Zenith C3S chassis SJ2775BG SM question
> >
> >
> > >
> > > My own zenith has a weak tube. Red is predominant. Since there aren't
> > > any adjustments, I experimented with changing the biasing of the red
> > > drive. I don't remember which resistor I replaced off hand but I
> replaced
> > > it with a variable one and was able to back off the red enough that
the
> > picture
> > > looks pretty decent.
> > >
> > > Jon Garver
> > >
> > >
> > > Ron Miller wrote:
> > >
> > > > Tried that ,gray scale is on the green side mot much but I notice
it.
> > > > Ron Miller
> > > > D.T.V. Texas
> > > >
> > > > ----- Original Message -----
> > > > From: "Ray Lufkin" <Rlufkin@xxxxxxxxxxxxxxx>
> > > > To: <techassist@xxxxxxxxxxxxx>
> > > > Sent: Friday, November 30, 2001 5:33 PM
> > > > Subject: [TechAssist] Re: Zenith C3S chassis SJ2775BG SM question
> > > >
> > > > >
> > > > > I may be off base here but can you adjust akb by turning the g2
pot
> on
> > the
> > > > > fly all the way off and bringing the g2 pot up very very slowly.
Put
> > up
> > > > > bars, brightness at 50% contrast at 75% color at 50% and bring up
g2
> > pot
> > > > > till you just distinguish the 1st and 2nd box on bottom right.
> > >
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