[TechAssist] Re: UPD*8TV Zenith Z25A02G, 9-1789, video distortion

  • From: "Jeff Dougherty" <jeff@xxxxxxxxxxxxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Tue, 31 Jul 2001 16:40:31 -0400

Yes, it was open, but did not take care of my symptom.
I still have the focus bar come and go..
Guess it's time to junk it.
Thanks for the help, guys.
Jeff

FAX 1-413-280-0677
Jeff Dougherty **Vacation 8/27 to 8/30**
Intrepid Video & Electronics
501 Luther Rd
Harrisburg, PA 17111
717-909-8844
VCR tips, electronics info & general interest.
www.intrepid-video.com www.tech-repair.net www.thetoolcaddy.com


----- Original Message ----- 
From: "Fuzz" <fantaj@xxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, July 31, 2001 4:27 PM
Subject: [TechAssist] Re: UPD*8TV Zenith Z25A02G, 9-1789, video distortion


> 
> Thats exactly it.
> did you disconnect one end to make sure.?
> fuzz
> ----- Original Message -----
> From: "Jeff Dougherty" <jeff@xxxxxxxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Tuesday, July 31, 2001 3:55 PM
> Subject: [TechAssist] Re: UPD*8TV Zenith Z25A02G, 9-1789, video
> distortion
> 
> 
> 
> Fuzz,
> What is the value of RX3277?
> Looks like a 2.7 ohm, unless these aren't gold bands, but they look
> gold.
> Jeff
> 
> FAX 1-413-280-0677
> Jeff Dougherty **Vacation 8/27 to 8/30**
> Intrepid Video & Electronics
> 501 Luther Rd
> Harrisburg, PA 17111
> 717-909-8844
> VCR tips, electronics info & general interest.
> www.intrepid-video.com www.tech-repair.net www.thetoolcaddy.com
> 
> 
> ----- Original Message -----
> From: "fantaj" <fantaj@xxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Monday, July 30, 2001 5:27 PM
> Subject: [TechAssist] Re: UPD*8TV Zenith Z25A02G, 9-1789, video
> distortion
> 
> 
> >
> > Hi Jeff
> > make sure RX3277 didnt change in value.
> > is your G2 vdc ???
> > also check the following:
> > C-2217 / C-2218 / C-2227
> > D-2202 / D-2203 / D-2204
> > also the main Q-5104 on the CRT PCB if you have one there.
> > fuzz
> > ----- Original Message -----
> > From: "Jeff Dougherty" <jeff@xxxxxxxxxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Monday, July 30, 2001 5:00 PM
> > Subject: [TechAssist] Re: UPD*8TV Zenith Z25A02G, 9-1789, video
> distortion
> >
> >
> >
> > Thanks Fuzz,
> > I know about that, but I have to turn it down a little more, maybe a
> quarter
> > turn to get rid of the intermittent distortion.
> > Can I send it out, now that's it's working, or should I install a CRT
> > isolator on it?
> > Jeff
> >
> > FAX 1-413-280-0677
> > Jeff Dougherty **Vacation 8/27 to 8/30**
> > Intrepid Video & Electronics
> > 501 Luther Rd
> > Harrisburg, PA 17111
> > 717-909-8844
> > VCR tips, electronics info & general interest.
> > www.intrepid-video.com www.tech-repair.net www.thetoolcaddy.com
> >
> >
> > ----- Original Message -----
> > From: "Fuzz" <fantaj@xxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Monday, July 30, 2001 4:43 PM
> > Subject: [TechAssist] Re: UPD*8TV Zenith Z25A02G, 9-1789, video
> distortion
> >
> >
> > >
> > > Hi Jeff
> > > normally on zenith you adjust G2 till the picture gets bright with
> > > retrace then back off.
> > > hope this helps
> > > fuzz
> > > ----- Original Message -----
> > > From: "Jeff Dougherty" <jeff@xxxxxxxxxxxxxxxxxx>
> > > To: <techassist@xxxxxxxxxxxxx>
> > > Sent: Monday, July 30, 2001 4:24 PM
> > > Subject: [TechAssist] Re: UPD*8TV Zenith Z25A02G, 9-1789, video
> > > distortion
> > >
> > >
> > >
> > > I just found out, reducing the screen voltage, the distortion does
> not
> > > come
> > > back.
> > > Is this a sign of a weak tube, already?
> > > Jeff
> > >
> > > FAX 1-413-280-0677
> > > Jeff Dougherty **Vacation 8/27 to 8/30**
> > > Intrepid Video & Electronics
> > > 501 Luther Rd
> > > Harrisburg, PA 17111
> > > 717-909-8844
> > > VCR tips, electronics info & general interest.
> > > www.intrepid-video.com www.tech-repair.net www.thetoolcaddy.com
> > >
> > >
> > > ----- Original Message -----
> > > From: "Jeff Dougherty" <jeff@xxxxxxxxxxxxxxxxxx>
> > > To: "Techsonline" <techassist@xxxxxxxxxxxxx>
> > > Sent: Monday, July 30, 2001 4:04 PM
> > > Subject: [TechAssist] TV Zenith Z25A02G, 9-1789, video distortion
> > >
> > >
> > > >
> > > > This is an odd one.1998 set, 9-1789 module
> > > > Usually during scene change, the picture, about two inches high
> > > appears
> > > out
> > > > of focus, distorted.
> > > > Distortion is all the way across the CRT, about two inches high,
> lasts
> > > for
> > > > any where from a few seconds, or until the next scene change.
> > > > At one point, I had rainbow colors around the outside edges,
> turning
> > > off,
> > > > and back on and the picture was normal until these wavy, distorted
> > > bars
> > > > appeared.
> > > > Has any one seen this one before?
> > > >
> > > > Jeff
> > > >
> > > > FAX 1-413-280-0677
> > > > Jeff Dougherty **Vacation 8/27 to 8/30**
> > > > Intrepid Video & Electronics
> > > > 501 Luther Rd
> > > > Harrisburg, PA 17111
> > > > 717-909-8844
> > > > VCR tips, electronics info & general interest.
> > > > www.intrepid-video.com www.tech-repair.net www.thetoolcaddy.com
> > > >
> > > >
> > > >
> > > > Help make your TechAssist online repair tips
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