[TechAssist] Re: RCA ctc211a green vertical lines
- From: "Wayne Vanaman" <Wayne@xxxxxxxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 20 Feb 2003 06:56:06 -0600
With a green raster you can not see it, but with anything else it is there.
I am familiar with pixelization. This is not digital noise per say. It
looks like morse code. Nice tight dots and dashes.
Wayne Vanaman
Omega Electronics
6904 W Fairfield Dr
Pensacola, Fl. 32506-3310
Wayne@xxxxxxxxxxxxxxxxxxxxx
WWW.PensacolaTVRepair.Com
850-456-5995 voice
850-458-6369 fax
----- Original Message -----
From: "Damon" <DAMON101@xxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, February 19, 2003 8:45 PM
Subject: [TechAssist] Re: RCA ctc211a green vertical lines
>
> If you input a single color such as a red or blue raster, do these lines
> appear? I certainly wonder if it could be convergence related or if its
> actually digital video noise. If all sources have this generated noise in
> the video, and if I'm correct, the Component Video path should have the
> least amount of circuitry to troubleshoot, thus the least amount of
probable
> failure points. Sorry, but have yet to see very many of the CTC 211's
> needing repair at this time.
>
> Damon Brunger
> Telrad Electronic Services
> Ft Wayne, IN 46815
>
> ----- Original Message -----
> From: "Wayne Vanaman" <Wayne@xxxxxxxxxxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Wednesday, February 19, 2003 9:23 AM
> Subject: [TechAssist] RCA ctc211a green vertical lines
>
>
> >
> > model RCA D52130yx1
> > chassis ctc211a
> >
> > Customers complaint is intermittant green vertical lines on the right
> side,
> > any inputs.
> >
> > What I observed was: Using a Quantum Data 608 generator, 1080i/480p was
> > good in 4x5 and 16x9 modes.
> >
> > Tuner video, composite input, s-video input, even 480i component input
> would
> > exhibit the complaint. Using the over-scan pattern from the generator,
> the
> > first of the lines was always exactly on the 3rd vertical line to the
left
> > of the line which begins the overscan marks. The green lines were dots
> and
> > dashes, like morse code, running top to bottom. The pattern constantly
> > changed and this first line was usually displayed. To the right of this
> > line there would be a series of lines with "random" patterns, and at
> > "random" spaces. I counted at least 12 at one time, there were more
> > sometimes, but would come and go.
> >
> > I reseated each connector on the convergence board. Tapping or flexing
> had
> > no effect. Then I reseated each connector on the back panel board with
> the
> > inputs, again, to no effect.
> >
> > Ideas?
> >
> > Wayne Vanaman
> > Omega Electronics
> > 6904 W Fairfield Dr
> > Pensacola, Fl. 32506-3310
> >
> > Wayne@xxxxxxxxxxxxxxxxxxxxx
> > WWW.PensacolaTVRepair.Com
> >
> > 850-456-5995 voice
> > 850-458-6369 fax
> >
> >
> >
> > ---
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