[TechAssist] Re: FIXED RCA CTC203CA9 F32649 HOT Over heating
- From: "Wayne Vanaman" <Wayne@xxxxxxxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sat, 25 Oct 2003 08:25:42 -0500
The joys of Thomsons Parts Finder.
The horizontal drive transformer in the ctc203ca9 chassis is pn 215541.
Doing the "where used" search in Parts Finder shows this transformer is used
in many variations of these chassis:
act113
ctc175
ctc176
ctc177
ctc184
ctc185
ctc186
ctc187
ctc197
ctc203
ptk195
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: "Philip Bader" <tjanphyl@xxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Saturday, October 25, 2003 8:01 AM
Subject: [TechAssist] Re: FIXED RCA CTC203CA9 F32649 HOT Over heating
> Believe it or not... I have sucessfully used H.drive transformers from
> CTC175-177 series chassis with no problems. The TVs are still out there
> working with cool HOTs.
> Phil Bader
>
> Gerald Gann wrote:
> >
> > After removing horz drive transformer and cleaning wax twice. We
replaced it with another one. Been running for two days now, looks good.
> > Thanks to all who helped
> > Jerry
> >
> > Alpha 21 Electronics
> >
> > Granite City, IL 62040
> >
> > Ph. 618-452-8620
> >
> > Fax 618-876-5157
> > www.alpha21century@xxxxxxxxxxxxx
> >
> > al m <ampm@xxxxxxx> wrote:
> > The pulse width should be around 11.5 micro sec. Should say good or bad.
> > Don't have to have the set on, Just hook up the timing test. That
equipment
> > should have a manual with it to explain everything. Put the TVA92 on
> > horizontal output ms. and hook up the leads. Then put the other set of
leads
> > on and measure for the load test.
> > Al Marquardt
> > ampm@xxxxxxx
> > Al Marquardt Electronic Repair
> > 206 W Main
> > Girardville Pa. 17935
> > ----- Original Message -----
> > From: "Gerald Gann"
> > To:
> > Sent: Friday, October 10, 2003 4:21 PM
> > Subject: [TechAssist] Re: RCA CTC203CA9 F32649 HOT Over heating
> >
> > > Thanks Adolph & Al: I have the Cencore TV Video Analyzer TVA92,
Universal
> > Video Generator VG91 and the Autotracker SC3100. Dose the schematic have
> > these pulse width wave forms in it. If so could I get a PDF or a FAX of
> > them?
> > >
> > > Jerry
> > >
> > > Alpha 21 Electronics
> > >
> > > Granite City, IL 62040
> > >
> > > Ph. 618-452-8620
> > >
> > > Fax 618-876-5157
> > > www.alpha21century@xxxxxxxxxxxxx
> > >
> > > agower wrote:
> > >
> > > Timing is the rise and fall time of the Horz. pulse width usually 12
micro
> > > seconds, some times called the pulse width,
> > > if width is too wide means that the horizontal output transistor is
turned
> > > on too long cause of overheating thus failure.
> > > Also the pulse should be a clean spike with no distortion of the
pulse. If
> > > you do not have a good scope that you can observe the out put of the
HOT
> > > with out damage to your scope, can be observed by holding scope probe
> > close
> > > to fly and observe the wave form on the scope. Ideal is a good scope.
> > > Adolph B. Gower
> > > Cordova TV & Electronics
> > > 10275 Old Placerville Rd. # 5
> > > Sacramento, Ca. 95827
> > > Ph. (916) 363-6565
> > > Fx. (916) 3263-7623
> > > agower@xxxxxxxxxxxxxxxxxx
> > > Source For used parts and NLA Parts
> > > NEC, MAGNAVOX , ZENITH
> > > and many other brands
> > > Fax (916)363-7623
> > > Phone (916)363-6565
> > >
> > > ----- Original Message -----
> > > From: "Gerald Gann"
> > > To:
> > > Sent: Friday, October 10, 2003 10:54 AM
> > > Subject: [TechAssist] Re: RCA CTC203CA9 F32649 HOT Over heating
> > >
> > >
> > > > Thank Al we removed the coil and drive transformer and clean the
pins
> > and
> > > the wax off the board and resoldered them after hearing from Wayne
Vanaman
> > > earlier, thanks Wayne. I've seen this on other chassis, did'nt know if
it
> > > applied to this one. Still no change. Hate to sound dumb buy what
exactly
> > > what do you mean by check you timing?
> > > Jerry
> > > Alpha 21 Electronics
> > >
> > > Granite City, IL 62040
> > >
> > >
> > > Ph. 618-452-8620
> > >
> > > Fax 618-876-5157
> > >
> > > www.alpha21century@xxxxxxxxxxxxx
> > > >
> > > >
> > > > al m wrote:
> > > > Check your timing and resolder the coil and drive transformer for
> > starts.
> > > > Al Marquardt
> > > > ampm@xxxxxxx
> > > > Al Marquardt Electronic Repair
> > > > 206 W Main
> > > > Girardville Pa. 17935
> > > > ----- Original Message -----
> > > > From: "Gerald Gann"
> > > > To:
> > > > Sent: Thursday, October 09, 2003 1:51 PM
> > > > Subject: [TechAssist] RCA CTC203CA9 F32649 HOT Over heating
> > > >
> > > >
> > > > > Hello Techs: Can any one help on this one?
> > > > > RCA CTC203CA9 F32649 HOT Over heating. Changed FLY and HOT with
omp,
> > > > checked caps with for ESR all checked good. Looks good till HOT
fails.
> > > What
> > > > am I missing?
> > > > > Thanks
> > > > > Jerry
> > > > >
> > > > > Alpha 21 Electronics
> > > > >
> > > > > Granite City, IL 62040
> > > > >
> > > > > Ph. 618-452-8620
> > > > >
> > > > > Fax 618-876-5157
> > > > > www.alpha21century@xxxxxxxxxxxxx
> > > > >
> > > > >
> > > > >
> > > >
> > >
> >
****************************************************************************
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> --
> Philip Bader
> Jan Phyl TV Inc. (estab. 1976)
> 3420 Recker Hwy. Winter Haven, Fl. 33880
> Fax (863) 299-8821
> email: tjanphyl@xxxxxxxxxxxxxxx
> For Professional Technicians Only
>
>
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