[TechAssist] Re: Rca F32730SB CTC179CM
- From: "Mouton's Electronics" <moutons@xxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sat, 27 Jul 2002 10:15:08 -0500
ctc169 direct view and most other direct view donot shutdown without vert.
all of projections will either blank or shut down, most since the ptk169
blank with the scan loss circuit. I have had very little trouble with the
ctc179cm, never had a vertical problem, as far as other problems I have
mostly found no audio which was repaired by reinitializing the eeprom with
chipper checker. In most cases pulsing or clicking 3 times will be due to a
short or in some of the newer chassis just having a low or missing source.
The micro looks for several sources and if they don't achieve there
potential in a specified amount of time the set will shutdown and restart 3
times. Error code may suggest a missing source. In some models, if you press
the menu and hold, then press the power then volume up WHILE THE SET IS OFF,
the set will be forced on if it is capable of coming on and give you the
error codes on screen.
Jason Mouton
Mouton's Electronics
1116 Center St.
New Iberia, LA 70560
337-364-1641 Phone/Fax
moutons@xxxxxxxxxxxxxxxx
----- Original Message -----
From: "Damon" <DAMON101@xxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Saturday, July 27, 2002 7:35 AM
Subject: [TechAssist] Re: Rca F32730SB CTC179CM
>
> You know..........I believe RCA has done the 3 click Vertical failure
> symptom since 92 which includes 169's to the present.......but I just
don't
> know if it applies to ALL chassis.
> Sure would like to know that answer.
> Damon Brunger
> damon101@xxxxxxxxxxxxxx
> Telrad Electronic Services
> Ft Wayne, IN 46815
> ----- Original Message -----
> From: "Gary McCartney" <number63@xxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Friday, July 26, 2002 8:44 AM
> Subject: [TechAssist] Re: Rca F32730SB CTC179CM
>
>
> >
> > I have a CTC178L which clicks 3 times. Should I suspect the vertical for
> > that chassis as well?
> >
> >
> > Gary McCartney
> >
> > McCartney Electronics
> > 7134 Fife Rd, RR 7
> > Guelph Ontario Canada N1H 6J4
> > Fax: (519)821-1530
> > email: number63 (at) inetsonic.com
> >
> >
> >
> >
> > Damon wrote:
> > >
> > > I agree with Jim on this, RCA years ago stated to check the vert if
the
> > > power supply clicks 3 times. But keep an eye on that 15 volt supply
too,
> all
> > > your supply voltages come up to their rated values, but the 15v supply
> only
> > > comes up to 10v.....that's a little suspicious to me.
> > >
> > > Damon Brunger
> > > damon101@xxxxxxxxxxxxxx
> > > Telrad Electronic Services
> > > Ft Wayne, IN 46815
> > > ----- Original Message -----
> > > From: "Jim Myers" <jr.myers@xxxxxxxxxxx>
> > > To: <techassist@xxxxxxxxxxxxx>
> > > Sent: Thursday, July 25, 2002 3:59 PM
> > > Subject: [TechAssist] Re: Rca F32730SB CTC179CM
> > >
> > > >
> > > > Check for a vertical pulse at pin 25 of the micro, U3101 while it is
> > > trying
> > > > to turn on. If not there the vertical ic is probably bad. This is
> assuming
> > > > that all you mentioned is true, hv, flyback pulse, 135, etc is all
ok.
> > > > Jim Myers
> > > > Telrad Electronic Services Co.
> > > > Fort Wayne, IN 46815
> > > > jr.myers@xxxxxxxxxxx
> > > > 260-432-4486 Fax and Voice
> > > > Fax is always on
> > > > ----- Original Message -----
> > > > From: "TV Doctors" <tvdoctors@xxxxxxxxxxxxx>
> > > > To: <techassist@xxxxxxxxxxxxx>
> > > > Sent: Thursday, July 25, 2002 3:25 PM
> > > > Subject: [TechAssist] Re: Rca F32730SB CTC179CM
> > > >
> > > >
> > > >
> > > > I had gotten a reply from another tech. (on my home pc) about
> resoldering
> > > > the tuner connections but this still did not help. Set still wont
> power on
> > > > and stay on. As soon as I hit the power button, it tries three times
> to
> > > come
> > > > on. High voltage comes up even. I disconnected the collector of the
> HOT
> > > and
> > > > it still tries 3 times. I measure 135 volts coming up for the
> collector. I
> > > > noticed that my 18 volt supply comes up to around 25 volts and
my -18
> > > volts
> > > > comes up to -18 volts and the 15 volt line comes up to 10 volts
> between
> > > each
> > > > try. Any known weak diode or caps in the secondary that anyone knows
> of
> > > from
> > > > this chassis? Neil
> > > >
> > > > -------Original Message-------
> > > >
> > > > From: techassist@xxxxxxxxxxxxx
> > > > Date: Wednesday, July 24, 2002 03:37:01 PM
> > > > To: techassist@xxxxxxxxxxxxx
> > > > Subject: [TechAssist] Rca F32730SB CTC179CM
> > > >
> > > > Can't find many tips on this chassis in the tips section. Any known
> common
> > > > components to look/check for, for shut down, as soon as set is
powered
> up.
> > > > It tries to start about 3 times before shutting down for good then
> have to
> > > > press power button again. A blue bar comes up on the screen before
> > > shutdown
> > > > occurs. I have disconnected the collector to the H.O.T but it still
> shuts
> > > > down. But at least I measure 135 volts for the b+ before it shuts
> down.
> > > Bad
> > > > Cap, Weak rectifier, like in the ctc169 series? TIA Neil Boman Tv
> Doctors
> > > > Monroe,Wa. 360-794-6469
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