[TechAssist] Re: CTC185 RCA
- From: "John at Main TV" <maintv2004@xxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 17 Feb 2005 09:46:36 -0700
According to RCA troubleshooting procedure, the PS will not operate unless
the horiz section is able to operate, it must have a horiz pulse going back
to Q4104 in the power supply. To troubleshoot, short source and drain of
Q4114, the main regulator and reduce AC voltage to 90vac. The regulated
output should be 130v. Note: the PS will normally put out 150v in standby.
You must have a horiz problem causing the output to short, perhaps IHVT but
that is not common. Check C4402 (.0064-1.5KV) and the solder there on.
John.
John Mielke
Main TV
636 main St.
Longmont, Co
phone 303 776 6955
fax 303 776 0792
maintv2004@xxxxxxxxxxx
----- Original Message -----
From: "STERLING PASHER" <spasher@xxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, February 16, 2005 7:52 PM
Subject: [TechAssist] Re: CTC185 RCA
> John: The chassiss # is 185ab3 . It blows the H/O and CR4103 PS.
> Buck Pasher
> Buck's TV
> Gander Newfoundland
> Canada
> 709-256-7738 (Fax & Phone)
>
>
>
> ----- Original Message -----
> From: "John at Main TV" <maintv2004@xxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Wednesday, February 16, 2005 9:13 PM
> Subject: [TechAssist] Re: CTC185 RCA
>
>
> > Assuming the CTC185 is followed by 1 or 2 letters and no numbers, the
kit
> is
> > 231523. If there are numbers after the letters, then there is no kit
> > available and the output alone is 242204 or if the PS has multiple
> problems
> > you can use the kit but use the 242204 output (in chassis with numbers
> after
> > the letters). Confused yet? I'm not sure what you mean by the H/O
diodes.
> > John.
> > John Mielke
> > Main TV
> > 636 main St.
> > Longmont, Co
> > phone 303 776 6955
> > fax 303 776 0792
> > maintv2004@xxxxxxxxxxx
> >
> > ----- Original Message -----
> > From: "STERLING PASHER" <spasher@xxxxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Wednesday, February 16, 2005 3:45 PM
> > Subject: [TechAssist] CTC185 RCA
> >
> >
> > > Does anyone know the number of the kit for the Horz/PS for this RCA.
> Need
> > > one as I keep blowing H/O diodes in PS.
> > >
> > > Buck Pasher
> > > Buck's TV
> > > Gander Newfoundland
> > > Canada
> > > 709-256-7738 (Fax & Phone)
> > >
> > >
> > >
> > >
> > >
> > > --
> > > No virus found in this outgoing message.
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> > > Version: 7.0.300 / Virus Database: 265.8.8 - Release Date: 2/14/05
> > >
> > >
> >
>
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