[TechAssist] Re: RCA projection TV- sub flyback transformer
- From: <support@xxxxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Fri, 21 Feb 2003 19:22:47 -0500
Don,
226094 is the original.
232191 is the one RCA says is the sub.
Jeff Dougherty
Intrepid Video TV/VCR
263 S Front St
Steelton PA 17113
717-909-8844
www.intrepid-video.com www.tech-repair.net
----- Original Message -----
From: "drcvr" <drvcr@xxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, February 21, 2003 12:00 PM
Subject: [TechAssist] Re: RCA projection TV- sub flyback transformer
>
> Thanks Larry & Jeff!
> The sub flyback 232191 it generates voltage way too high throu black lead
to
> Hv reg. PCB caused R4762 burn. Don't try to install any resistor between
> black lead to red one from HV board, voltage high enough to kill 33
> mega-ohms like I have tried. I have two other PTK169 in my shop, they are
> newer sets, set with HV block stay near GREEN crt, took T4401 out and
> install to this set it works OK. The only problem is red lead to HV Block
> little bit short, so I have to drill hole through cardboard. Draw # on
this
> one is 2G25038-A2A and part# is 226094. Again 226094 is original or a SUB
> one? Please let me know before I order. TIA
> Don B.
> Dr. VCR est:1994
> 20 Hanson Ave
> Kitchener, Ontario
> CANADA N2C 2E2
> Tel 519-579-7112 Fax 519-579-1996
> drvcr@xxxxxxxxxx
>
> ----- Original Message -----
> From: <support@xxxxxxxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Thursday, February 20, 2003 7:52 PM
> Subject: [TechAssist] Re: RCA projection TV- sub flyback transformer
>
>
> >
> > Larry,
> > The one you did, was it a PTV, or direct view?
> > I know many other techs that had the same problem Don has, including
> myself.
> > I was able to patch the hole in the flyback with HV putty and it worked
> like
> > a charm.
> > Before I patched it, I tried a flyback from a direct view chassis and
the
> > same resistor blew.
> > I've came to the assumption that part is not a good number for the PTV
> sets.
> > I wish more people would be contacting RCA on this issue. They assured
me
> I
> > had the right part number.
> >
> > Jeff Dougherty
> > Intrepid Video TV/VCR
> > 263 S Front St
> > Steelton PA 17113
> > 717-909-8844
> > www.intrepid-video.com www.tech-repair.net
> > ----- Original Message -----
> > From: "Larry E." <videotech@xxxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Thursday, February 20, 2003 5:23 PM
> > Subject: [TechAssist] Re: RCA projection TV- sub flyback transformer
> >
> >
> > >
> > > Don, the sub is the right number, did one with the same symptoms about
> > > 4-5 months ago and ended up replacing 4-5 parts on the HV Reg. board
and
> > > the HV Splitter(205064) this will probably end up being a pricey
repair
> > > so cover your a**, good luck, Larry E
> > >
> > > Larry Eastman
> > > American TV & Electronics
> > > Crystal River, Fl. 34428
> > >
> > > drcvr wrote:
> > >
> > > > Hello, Techs!
> > > > I have this lightbox in for service, model#P52755ST and chassis#
> > CTC169PA found T4401 open wire( internal) from B+ to collector of HOT,
TV
> is
> > dead. T4401 draw# 2G25018-A3A, original #200450 has been sub to 232191.
I
> > order one 232191 and install, fire it up, smoke come out of R4762 on HV
> REG
> > PCB and 2 seconds later TV dead. I found Q4752 on HV REG. PCB shorted
and
> > R4762 open. My question is this is a good SUB of flyback from RCA? Is
> there
> > any way to get original one?
> > > > TIA
> > > > Don B.
> > > > Dr. VCR est:1994
> > > > 20 Hanson Ave
> > > > Kitchener, Ontario
> > > > CANADA N2C 2E2
> > > > Tel 519-579-7112 Fax 519-579-1996
> > > > drvcr@xxxxxxxxxx
> > > >
> > > >
> >
>
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> > > >
> > > >
> > >
> > >
> > > --
> > > Larry Eastman
> > > American TV & Electronics
> > > Crystal River, Fl. 34428
> > > http://www.tvjunkyard.com
> > >
> > >
> >
>
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