[TechAssist] Re: RCA F32730SB Chassis CTC179CM Dead
- From: "John Conti" <contitv@xxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Mon, 01 Aug 2005 12:41:17 -0500
Shaun, They may check good but bad under the freq. law. I talked to an rca
engineer a while back on a problem I had on an rca of this chassis and as we
spoke for a while I remembered about these diodes and why they fail. His
reply was that the diode was being stressed because of the freq. law
and to replace them with fresh ones no matter how good they checked. So I
replace them every time to be on the safe side of things.
John
Conti,sTV
Texas
>From: "Shaun" <satguy@xxxxxxxxxxxxx>
>Reply-To: techassist@xxxxxxxxxxxxx
>To: <techassist@xxxxxxxxxxxxx>
>Subject: [TechAssist] Re: RCA F32730SB Chassis CTC179CM Dead
>Date: Mon, 1 Aug 2005 11:14:01 -0600
>
>Found them C4123K and C4132K both removed and tested good but I will
>replace
>them anyway. Thanks for the heads up.
>
>Shaun
>
>Advanced Electronics
>224 West Riverview Ave.
>Fort Morgan, CO 80701
>----- Original Message -----
>From: "Shaun" <satguy@xxxxxxxxxxxxx>
>To: <techassist@xxxxxxxxxxxxx>
>Sent: Monday, August 01, 2005 11:01 AM
>Subject: [TechAssist] Re: RCA F32730SB Chassis CTC179CM Dead
>
>
> > Do You know the location numbers of the caps?
> >
> > Shaun
> >
> > Advanced Electronics
> > 224 West Riverview Ave.
> > Fort Morgan, CO 80701
> > ----- Original Message -----
> > From: "John Conti" <contitv@xxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Sunday, July 31, 2005 6:29 PM
> > Subject: [TechAssist] Re: RCA F32730SB Chassis CTC179CM Dead
> >
> >
> > > Shaun, CR4110 failed because the two small ceramic caps. that are in
> > > parallel are bad. The part # for these two are 102230. (470pf 500v).
>If
> > you
> > > do not replace these two caps the diode will fail in short time.
> > >
> > > John
> > > Conti,s TV
> > > Texas
> > >
> > > >From: "Shaun" <satguy@xxxxxxxxxxxxx>
> > > >Reply-To: techassist@xxxxxxxxxxxxx
> > > >To: "tech" <techassist@xxxxxxxxxxxxx>
> > > >Subject: [TechAssist] RCA F32730SB Chassis CTC179CM Dead
> > > >Date: Sat, 30 Jul 2005 14:57:30 -0600
> > > >
> > > >This set came in dead on the variac it tried to turn on 3 times the
> > > >nothing.
> > > >I found CR4110 shorted. I replaced it with RCA part number 243636 set
>is
> > > >now
> > > >running normally. I was just wondering if anyone knows of any other
> > reasons
> > > >that CR4110 would short.
> > > >
> > > >Shaun
> > > >
> > > >Advanced Electronics
> > > >224 West Riverview Ave.
> > > >Fort Morgan, CO 80701
> > > >
> > >
> >
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