[TechAssist] Re: RCA model # F32683SB, CTC197CE2,dead, relay clicks.

  • From: "Wayne Vanaman" <Wayne@xxxxxxxxxxxxxxxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Mon, 27 Jan 2003 16:49:01 -0600

I was only collecting data on units that tested "good" per the ringing
testers.  I did not attempt to record resistance measurements.  I was trying
to find out how many "rings" these things needed for the go/no-go test to be
meaningful.  I also did not record data on units that rang "bad".

Wayne Vanaman
Omega Electronics
6904 W Fairfield Dr
Pensacola, Fl.  32506-3310

Wayne@xxxxxxxxxxxxxxxxxxxxx
WWW.PensacolaTVRepair.Com

850-456-5995 voice
850-458-6369 fax


----- Original Message -----
From: "Kevin" <kevintv@xxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, January 27, 2003 3:59 PM
Subject: [TechAssist] Re: RCA model # F32683SB, CTC197CE2,dead, relay
clicks.


>
> What did the bad flybacks read (resistance wise) from HV anode to
> ground?  If they read anything then the internal diodes are shorted.  It
> does look by my LC75 that this one is bad.  Pins 2-3 and 1-3 ring @
> 12-15 rings, but pins 1-2 ring at 1.  The anode to ground test is good
> (open).
>
> Kevin Wilks
> Kevin's TV & Video Repair
> Penticton BC Canada
> kevintv@xxxxxxx
>
>
> -----Original Message-----
> From: techassist-bounce@xxxxxxxxxxxxx
> [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Wayne Vanaman
> Sent: Monday, January 27, 2003 1:33 PM
> To: techassist@xxxxxxxxxxxxx
> Subject: [TechAssist] Re: RCA model # F32683SB, CTC197CE2,dead, relay
> clicks.
>
>
> The ringing test is only that, a test.  The information is neither good
> nor
> bad by itself.  A good/bad test means nothing.  The Sencore VG91,
> HA2500,
> and LC102 will all tell you that the IHVT is good because they have
> arbitrarily selected 12 or something as the good/bad cut off.  You need
> to
> know what the "new" or "good" ihvts measure.
>
> The best test for these is to see them ring would you hit the power
> button.
>
> Here are some readings I recorded:
>
>
>
> IHVT 237506 2 good units measured.
> Pins 2-3 ring 57, 54 on the z-meter. Measures 2.77, 2.85 mH
> Pins 1-2 ring 29, 25 and measures 1.49, 1.43 uH
> Pins 1-3 ring 57, 54 and measures 2.52, 2.64 mH
> Pins 6-10 ring 48, 41 and measures 530, 540 uH
> On the TVA
> Pins 1-3 ring 30, 31
> Pins 1-2 ring 14, 16
> Pins 2-3 ring 30, 32
> Pins 6-10 ring 36, 36
>
> Pin 5-anode leaks 2 mA
>
> BAD UNITs z-meter
> pins 2-3 ring 19, 40
> pins 1-2 ring 2, 17
> pins 1-3 ring 18, 39
> pins 6-10 ring 7, 30
> On the TVA
> Pins 2-3 ring 15, 27
> Pins 1-2 ring 0, 11
> Pins 1-3 ring 14, 26
> Pins 6-10 ring 0, 26
>
>
> Notice the relatively high (good) ring count on the defective units.
>
>
>
>
> Wayne Vanaman
> Omega Electronics
> 6904 W Fairfield Dr
> Pensacola, Fl.  32506-3310
>
> Wayne@xxxxxxxxxxxxxxxxxxxxx
> WWW.PensacolaTVRepair.Com
>
> 850-456-5995 voice
> 850-458-6369 fax
>
>
> ----- Original Message -----
> From: "Kevin" <kevintv@xxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Monday, January 27, 2003 3:05 PM
> Subject: [TechAssist] Re: RCA model # F32683SB, CTC197CE2,dead, relay
> clicks.
>
>
> >
> > Which pins do I use to ring the flyback?  I have the schematic but I
> > can't find pin 14 on the flyback.  Pins 2 and 3, and 1 and 3 rang
> good.
> > Pins 1 and 2 rang bad.
> >
> > Kevin Wilks
> > Kevin's TV & Video Repair
> > Penticton BC Canada
> > kevintv@xxxxxxx
> >
> > -----Original Message-----
> > From: techassist-bounce@xxxxxxxxxxxxx
> > [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Jim Myers
> > Sent: Monday, January 27, 2003 4:22 AM
> > To: techassist@xxxxxxxxxxxxx
> > Subject: [TechAssist] Re: RCA model # F32683SB, CTC197CE2,dead, relay
> > clicks.
> >
> >
> > Bad flyback, pull it and ring test it to be sure.
> > ----- Original Message -----
> > From: "Kevin" <kevintv@xxxxxxx>
> > To: "TECH-ASSIST" <techassist@xxxxxxxxxxxxx>
> > Sent: Monday, January 27, 2003 4:08 AM
> > Subject: [TechAssist] RCA model # F32683SB, CTC197CE2,dead, relay
> > clicks.
> >
> >
> > Hi fellow techs,
> >
> > Working on this 32" RCA.  When the pwr switch is pressed the just
> > clicks-no HV or sound.  Only brought in chassis-nojig either.  Any
> ideas
> > what could be wrong?  I have never seen this chassis before so any
> help
> > would be appreciated.  TIA
> >
> > Kevin Wilks
> > Kevin's TV & Video Repair
> > Penticton BC Canada
> > kevintv@xxxxxxx
> >
> >
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