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

  • From: "Jeff Dougherty" <jeff@xxxxxxxxxxxxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Mon, 30 Jul 2001 16:24:30 -0400

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
> database better!  Submit your fixes here:
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