[TechAssist] Re: RCA CTC185AB Dead F25216WT may 1996

Check for open horz drive transformer  between pin 1 and 3  That got mine to
fire up but now turns on and off continuously .    If someone had this
problem before please advise to save me some time.
Thanks,
Phillip R Hull
phil245@xxxxxxxxxxxxx
----- Original Message -----
From: "Eric Manuel" <tvman@xxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, October 31, 2002 3:38 PM
Subject: [TechAssist] Re: RCA CTC185AB Dead F25216WT may 1996


>
> Hi Peter I have the trouble shoot guide and the training manual in
> electronic
> format I can send it direct to you if you need it..Eric
> Eric Manuel
> Deer Lake Nfld
> Canada
> 709-635-2627
>
> Peter oliver wrote:
> >
> > Not that I can find (scat) do you have one in electonic format if so
what
> > size is the file?
> >
> > Peter oliver
> > Tucson Radio TV
> >
> > From: "al m" <ampm@xxxxxxx>
> > Reply-To: techassist@xxxxxxxxxxxxx
> > To: <techassist@xxxxxxxxxxxxx>
> > Subject: [TechAssist] Re: RCA CTC185AB Dead F25216WT may 1996
> > Date: Thu, 31 Oct 2002 10:07:14 -0500
> >
> > Peter do you have a scat? My scat says 7.5V on pin 20, it's the
horizontal
> > B+. It comes from Q4115 the standby switch. The voltages on it are E=12V
> > C=12V B=11.4V pin 29 is the standby pin on micro.
> > al marquardt
> > ampm@xxxxxxx
> >
> > ----- Original Message -----
> > From: "Peter oliver" <oliver_peter1@xxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Wednesday, October 30, 2002 11:14 PM
> > Subject: [TechAssist] Re: RCA CTC185AB Dead F25216WT may 1996
> >
> >  >
> >  > Pin 20 of u1001 reads 4.8V
> >  >
> >  > Peter Oliver
> >  > Tucson Radio TV
> >  >
> >  >
> >  > From: "al m" <ampm@xxxxxxx>
> >  > Reply-To: techassist@xxxxxxxxxxxxx
> >  > To: <techassist@xxxxxxxxxxxxx>
> >  > Subject: [TechAssist] Re: RCA CTC185AB Dead F25216WT may 1996
> >  > Date: Sun, 27 Oct 2002 12:46:15 -0500
> >  >
> >  >
> >  > do you have your 7.5v on pin 20 of U1001
> >  > al marquardt
> >  > ampm@xxxxxxx
> >  >
> >  >
> >  > ----- Original Message -----
> >  > From: "Peter oliver" <oliver_peter1@xxxxxxxxxxx>
> >  > To: <techassist@xxxxxxxxxxxxx>
> >  > Sent: Sunday, October 27, 2002 9:51 AM
> >  > Subject: [TechAssist] Re: RCA CTC185AB Dead F25216WT may 1996
> >  >
> >  >
> >  >  >
> >  >  > The 5V supply is present at the front buttons.
> >  >  >
> >  >  > Peter Oliver
> >  >  > Tucson Radio TV
> >  >  >
> >  >  >
> >  >  >
> >  >  > From: "al m" <ampm@xxxxxxx>
> >  >  > Reply-To: techassist@xxxxxxxxxxxxx
> >  >  > To: <techassist@xxxxxxxxxxxxx>
> >  >  > Subject: [TechAssist] Re: RCA CTC185AB Dead F25216WT may 1996
> >  >  > Date: Sun, 27 Oct 2002 08:13:58 -0500
> >  >  >
> >  >  >
> >  >  >   You don't mention the 5V supply anywhere. Do you have a scat?
> >  >  > al marquardt
> >  >  > ampm@xxxxxxx
> >  >  >
> >  >  >
> >  >  > ----- Original Message -----
> >  >  > From: "Peter oliver" <oliver_peter1@xxxxxxxxxxx>
> >  >  > To: <techassist@xxxxxxxxxxxxx>
> >  >  > Sent: Saturday, October 26, 2002 5:34 PM
> >  >  > Subject: [TechAssist] RCA CTC185AB Dead F25216WT may 1996
> >  >  >
> >  >  >
> >  >  >  >
> >  >  >  >
> >  >  >  > RCA model F25216WT
> >  >  >  >    Chassis ctc185AB
> >  >  >  >   MFD May 1996
> >  >  >  > Symptom DEAD no flux at plug in no attempt to start or turn on
> >  >  >  >
> >  >  >  > Has voltage
> >  >  >  > Q4114    D=165V, S=162V, G= 135V
> >  >  >  >
> >  >  >  > Q4401 H.O.T Collector = 162V
> >  >  >  >
> >  >  >  > U4107 (12V reg) pin 1 (in)= 27V pin 3 (out)=11.9
> >  >  >  > CR4110 cathode= 27.8V
> >  >  >  > saw tip for CR4704 replaced no change.
> >  >  >  >
> >  >  >  > The regulator and H.O.T. test normal in circut this set still
has
> > the
> >  >  >  > electoltic in regulator circurt.. I have the regulator KIT but
it
> >  > doesn't
> >  >  >  > have all the symptoms, ie usually the regulator blows. The
customer
> >  > said
> >  >  > it
> >  >  >  > just stopped working.. Any ideas
> >  >  >  >
> >  >  >  >
> >  >  >  > Peter Oliver
> >  >  >  > Tucson Radio TV
> >  >  >  >
> >  >  >  >
> >  >  >  >
> >  >  >  >
> >  >  >  >
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