[TechAssist] Re: Fwd: CTC176F2 problems
- From: Kenny Barnes <kennyb@xxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Mon, 27 Oct 2003 10:46:42 -0600
Dan...........How do you find JC403 and JC411?? TIA
At 03:44 PM 10/24/03 -0500, you wrote:
>Kenny,
>
>Here's something you may want to check, I had a similar problem with a
>CTC176 and after spending countless hours and trying numerous things, I
>finally found a open printed circuit trace between JC403 and JC411, I didn't
>write down and can't remember where these connections were located on the
>chassis, but I do remember they were in the 12v standby circuit, just
>jumpered with a piece of wire to solve.
>
> Dan Webster
> Webster's TV
> Shullsburg, Wi.
>----- Original Message -----
>From: "Kenny Barnes" <kennyb@xxxxxxxxxxxx>
>To: <techassist@xxxxxxxxxxxxx>
>Sent: Friday, October 24, 2003 2:08 PM
>Subject: [TechAssist] Re: Fwd: CTC176F2 problems
>
>
> > Jim..Changed Eprom and T chip, advised by other techs. Don't think IHVT
>is
> > shorted or there is a drain on secondary of the HVT. The hi-voltage is 27
> > kv and the HOT is normal. Not hot. Remember no sound, no picture, raster
> > dark. Turn up screen control and see a raster.
> >
> >
> >
> >
> >
> >
> > At 07:56 PM 10/23/03 -0400, you wrote:
> > >first of all, why did you change the T chip and eeprom for a voltage
> > >problem???
> > >
> > >My guess is a partially shorted IHVT or a severe drain on the secondary
>of
> > >the HVT, such as a bad cap or diode. Does the H-out get especially hot?
> > >
> > >Jim McVey
> > >McVey Alltronix
> > >327 Broadway
> > >Newburgh Ny 12550
> > >ph: 845 561 8383
> > >fx: 845 561 9017
> > >Consumer electronics &
> > >computer service.
> > >Factory authorized for
> > >over twenty brands.
> > >----- Original Message -----
> > >From: "Kenny Barnes" <kennyb@xxxxxxxxxxxx>
> > >To: <techassist@xxxxxxxxxxxxx>
> > >Sent: Thursday, October 23, 2003 12:05 PM
> > >Subject: [TechAssist] Fwd: CTC176F2 problems
> > >
> > >
> > > >
> > > >
> > > >
> > > >
> > > > Changed eprom, T chip 1001,still have same problems. Any help here??
>TIA
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > >Have RCA Model # F20352SF, CTC176F2. Set came in dead. Replaced
> > >capacitor
> > > > >C4105,10MFD/200v. Set came on when plugged in. Can not turn set
>off.
> > >No
> > > > >sound,no picture. Raster dark. Has high voltage,27kv. draws 1.5
> > > > >amps. When set is on B+ voltage drops down to 114 volts. Should be
>140
> > > > >volts. the 140 volts feeds HOT thru flyback. Consequently all scan
> > > > >derived voltages off of flyback are low. Disconnect HOT then voltage
>off
> > > > >secondary of SMPS is 144 volts. Any help here??TIA
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >Kenny Barnes
> > > > >Kenny Barnes tv
> > > > >928 South Marshall st.
> > > > >5154325250
> > > > >Boone, Iowa 50036
> > > >
> > > >
> > > >
> >
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Kenny Barnes
Kenny Barnes tv
928 South Marshall st.
5154325250
Boone, Iowa 50036
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