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

  • From: Gary McCartney <gary@xxxxxxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Tue, 28 Jan 2003 17:25:34 -0500

I have used it on a few monitor flybacks. For some reason one of them
checked bad with the HR simulator but was actually ok, or maybe it was
the other way around, I can't remember. It may be possible that I didn't
have all the ground returns on the flyback connected to the tester,
which if the case, can give false readings. HR has a good web site for
looking up flyback pin-outs and connection diagrams to their tester.
They do have a model that is specially suited for monitors because it
runs with a 32kHz oscillator. Sorry I don't know off hand where a person
would go to buy retail but maybe the HR Diemen web site can direct you. 



http://www.hrdiemen.es/indexeng.shtml




Gary McCartney

McCartney Electronics
7134 Fife Rd, RR 7
Guelph Ontario Canada N1H 6J4
Fax: (519)821-1530
email: gary (at) number63.ca





peggs wrote:
> 
> Where to buy/check out ???
> Have you used it in monitors ???
> 
> Peggs
> 
> At 03:30 PM 1/28/03 -0500, Gary McCartney wrote:
> >
> >I have a flyback simulator, by HR Diemen. It simulates the HOT output
> >circuit of a TV. You connect the anode lead of the flyback under test to
> >it, as well as HOT collector input, B+ input to the primary windings,
> >and all grounds. Then the instrument gives you a digital readout of
> >flyback output KV as well as error codes, telling what the fault is with
> >the flyback- if there are any faults. You can also connect a scope to it
> >and view the HOT collector waveform. It is supposed to be able to test
> >flybacks in-circuit but I find better results by removing the flyback
> >first. Other than that, it seems to be very accurate in it's evaluation
> >of flybacks, including the HV rectifier. Retails for approx. $250.00 CDN
> >
> >
> >
> >
> >
> >Gary McCartney
> >
> >McCartney Electronics
> >7134 Fife Rd, RR 7
> >Guelph Ontario Canada N1H 6J4
> >Fax: (519)821-1530
> >email: gary (at) number63.ca
> >
> >
> >
> >
> >
> >
> >
> >J Silverman wrote:
> >>
> >> An instrument made for troubleshooting tv deflection problems without
> >> blowing up things. Diehl is long out of business but they had lots of
> >> inventory and I see them frequently offered for sale by people that have a
> >> bunch of them and by individuals. Takes the place of the HOT and has a test
> >> mode with trouble lights and a run mode. The tv must have B+ and I dont
> >> think it will work on the 12 and 24 volt B+ units.
> >> Every day I will see posts on the list asking questions about deflection
> >> problems that they could have handled by themselves if they had one of
> >> these. There were a variety of models. I have the MKV. It cost me $125. I
> >> bought it when I had a tech that ordered a FBT every time something came in
> >> with a shorted HOT. After we got it, it showed that only one out of 10
> had a
> >> defective FBT, and was a great help in troubleshooting the source of the
> >> problem.
> >> Jerry Silverman
> >> Greentron Inc
> >> 4 Newland Ave
> >> Greenville SC 29609
> >> 864 232 3889
> >> Fax 271 2080
> >> mailto:greentron@xxxxxxx
> >> ----- Original Message -----
> >> From: "Kevin" <kevintv@xxxxxxx>
> >> To: <techassist@xxxxxxxxxxxxx>
> >> Sent: Monday, January 27, 2003 8:48 PM
> >> Subject: [TechAssist] Re: RCA model # F32683SB, CTC197CE2,dead, relay
> >> clicks.
> >>
> >> >
> >> > What is a Diehl MKV Scanner?
> >> >
> >> > 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 J Silverman
> >> > Sent: Monday, January 27, 2003 5:35 PM
> >> > To: techassist@xxxxxxxxxxxxx
> >> > Subject: [TechAssist] Re: RCA model # F32683SB, CTC197CE2,dead, relay
> >> > clicks.
> >> >
> >> >
> >> > My old Diehl MKV Scanner actually runs the FBT from its own bulletproof
> >> > HOT
> >> > if there is B+ and lights tell me if there are problems. Then I can
> >> > disconnect the loads one at a time and if there is still a problem it
> >> > has to
> >> > be the FBT. After the thing is fixed, the Diehl will run the tv
> >> > indefinitely
> >> > to see if there are any intermittant problems. I still see those things
> >> > being offered for sale.
> >> > Jerry Silverman
> >> > Greentron Inc
> >> > 4 Newland Ave
> >> > Greenville SC 29609
> >> > 864 232 3889
> >> > Fax 271 2080
> >> > mailto:greentron@xxxxxxx
> >> > ----- Original Message -----
> >> > From: "Wayne Vanaman" <Wayne@xxxxxxxxxxxxxxxxxxxxx>
> >> > To: <techassist@xxxxxxxxxxxxx>
> >> > Sent: Monday, January 27, 2003 6:05 PM
> >> > Subject: [TechAssist] Re: RCA model # F32683SB, CTC197CE2,dead, relay
> >> > clicks.
> >> >
> >> >
> >> > >
> >> > > Excellent point Leonard.  An active test is better than a passive
> >> > test.
> >> > In
> >> > > the CTC19x series I have seen many IHVTs that just don't break down
> >> > untill
> >> > > you pass a couple hundred volt peaks.  If you have an external power
> >> > supply,
> >> > > say 30v + and a drive signal you are good to go.  The Sencore built it
> >> > stuff
> >> > > only goes up to about 15vdc and that is not enough to break down the
> >> > > transformer.
> >> > >
> >> > > I have a digital storage o'scope so it is easier for me to see the
> >> > ringing
> >> > > on an IHVT however here is how to do it with an analog scope.
> >> > >
> >> > > 1.  Set the scope on "Normal Trigger"--not automatic, which most techs
> >> > use.
> >> > > 2.  Set the scope on about 20 uS.
> >> > > 3.  Set the scope to trigger on about 200v. (if you are on the
> >> > collector
> >> > of
> >> > > the output transistor)
> >> > >     a.  If you can not scope the HOT collector directly use a
> >> > secondary,
> >> > > such as the 200v supply
> >> > >     b.  set the scope to trigger on about 15-20% of the peak pulse you
> >> > would
> >> > > expect there.
> >> > > 4.  Turn the intensity of the trace up.
> >> > > 5.  Hit the power button while watching the scope.
> >> > >
> >> > > What you will see if the IHVT is bad is a series of pulses decaying in
> >> > > amplitude.
> >> > >
> >> > > 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: "Leonard G. Caillouet" <lcaillo@xxxxxxxxxxxx>
> >> > > To: <techassist@xxxxxxxxxxxxx>
> >> > > Sent: Monday, January 27, 2003 4:47 PM
> >> > > Subject: [TechAssist] Re: RCA model # F32683SB, CTC197CE2,dead, relay
> >> > > clicks.
> >> > >
> >> > >
> >> > > >
> >> > > > Some flybacks will ring good with these tests and still be bad.  The
> >> > best
> >> > > > test that I have found is the Sencore drive test on the TVA92 which
> >> > is
> >> > > just
> >> > > > a 25v horizontal key pulse applied to the primary. You measure the
> >> > dc
> >> > > output
> >> > > > on the anode lead and compare to the chart.  It is very effective at
> >> > > > identifying HV rectifier problems that ringing will not.
> >> > > >
> >> > > > Leonard G. Caillouet
> >> > > > Service Manager
> >> > > > Electronics World
> >> > > > Gainesville, FL
> >> > > > 352-332-5608
> >> > > > 352-332-5668 (fax)
> >> > > >
> >> > > >
> >> > > > ----- Original Message -----
> >> > > > From: "Wayne Vanaman" <Wayne@xxxxxxxxxxxxxxxxxxxxx>
> >> > > > To: <techassist@xxxxxxxxxxxxx>
> >> > > > Sent: Monday, January 27, 2003 4:32 PM
> >> > > > 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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> >
> Peggs' Electronics
> 1519 West 2nd Street
> Owensboro,KY 42301
> 270-926-4968
> fax 270-686-7399
> peggs@xxxxxxxxxxxxxx
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-- 




Gary McCartney

McCartney Electronics
7134 Fife Rd, RR 7
Guelph Ontario Canada N1H 6J4
Fax: (519)821-1530
email: gary (at) number63.ca

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