[TechAssist] Re: RCA ctc203, F32649 bad flyback?
- From: peggs <peggs@xxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx, techassist@xxxxxxxxxxxxx
- Date: Tue, 03 Jun 2003 13:19:10 -0700
Sounds like an internal G2 to Focus Grid short in the pix tube.
Check the G2 voltage on the CRT Board when pix is good.
When Pix goes bad, check G2 voltage again with CRT Board
connected and disconnected.
There is a trick to remove an internal G2 to Focus grid short,but
in my experience this short has not been intermittent,nor did it appear
after warm-up.
This is with 'older' RCA/GE sets though
Peggs
At 10:25 AM 6/3/03, wa4fty@xxxxxxx wrote:
>Hi Jeff, Did you use an original RCA xformer?? It sounds as if the new
>transformer - original or not - failed. I know this does not help much but
>perhaps a second opinion will help some. Wayne / Tv Service Company,
>Lexington, S.C.
> > RCA tv model F32649 chassis ctc203CA6
> >
> > Had shorted horizontal output transistor. Put new transistor in and had
> good
> > picture but slight sizzling sound from flyback. Replaced flyback. Had good
> > picture for about 30 minutes. Then raster got too bright. Backing off on
> > screen control gives pretty good picture, but focus control has to be
> > readjusted to one end and affects brightness when it is adjusted. And
> > picture is not as good as it was during first 30 minutes.
> >
> > Bad new flyback? Only alternative I can find in Tech archive is possible
> > burned crt socket and possibly bad crt.
> >
> > Suggestions appreciated (except from C.B.)
> >
> > Jeff Smith
> > Smith TV Service
> > 1930 Main St
> > Newberry, SC 29108
> > 803/276-4946
> >
> >
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Peggs' Electronics
1519 West 2nd Street
Owensboro,KY 42301
270-926-4968
fax 270-686-7399
peggs@xxxxxxxxxxxxx
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