[TechAssist] Re: RCA F31672ET - CTC187CJ - Squeals on plug-in
- From: "Paul Westcott" <westcott@xxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Fri, 7 May 2004 01:41:58 -0400
David,
New flyback is part # 230702
Global dealer price $61.20
A flyback from a CTC 177 won't work.
Also check for a shorted CRT.
It will cause the same problem.
Paul Westcott
Kingsway Electronics
Sudbury,Ont.
705 566-9290
westcott@xxxxxxx
kingswayelectronics@xxxxxxxxxx
----- Original Message -----
From: "David Lessard" <mr_fixit@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, May 06, 2004 7:01 PM
Subject: [TechAssist] Re: RCA F31672ET - CTC187CJ - Squeals on plug-in
> TV is on the bench now, so I found a shorted HOT, swapped it with a
> 2SD1880 for test purpose only, set the variable to 90VAC and hit the ON
> button.
>
> Heard two snaps before the squeal came back, HOT was shorted again. I
> didn't even get a chance to see if the flyback was arcing externally,
> but it arcing it was, you can't mistake those snapping sound. I will
> ring the flyback tomorrow with my poor man's flyback ringer (my scope
> and a capacitor) and confirm what most you already know.
>
> How much does a new flyback cost? Can you use one from a CTC177 chassis?
>
> David Lessard
> Alexandria Electronics
> mr_fixit@xxxxxxxxxxxx
>
> -----Original Message-----
> From: techassist-bounce@xxxxxxxxxxxxx
> [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of jonas miglinas
> Sent: Friday, May 07, 2004 12:32 AM
> To: techassist@xxxxxxxxxxxxx
> Subject: [TechAssist] Re: RCA F31672ET - CTC187CJ - Squeals on plug-in
>
> HOT shorted, more than likely the flyback is also shorted.
>
> Jonas Miglinas
> Miglinas TV
> Chicago
> ----- Original Message -----
> From: "David Lessard" <mr_fixit@xxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Thursday, May 06, 2004 1:08 PM
> Subject: [TechAssist] RCA F31672ET - CTC187CJ - Squeals on plug-in
>
>
> > This TV squeals upon plug-in. I know there's a short somewhere causing
> > the chopper PS to squeal, question is where? Does anyone know what the
> > common causes for this problem are? I don't have the TV on the bench
> yet
> > and I'm asking this question in advance.
> >
> >
> > Thanks in advance.
> >
> >
> >
> > David Lessard
> >
> > Alexandria Electronics
> >
> > 50 Harrison Street
> >
> > P.O. Box 1366
> >
> > Alexandria, Ontario.
> >
> > Canada
> >
> > K0C-1A0
> >
> > mr_fixit@xxxxxxxxxxxx
> >
> >
> >
> >
> >
> >
> >
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