[TechAssist] Re: CTC169AB No Model # shutdown Problem found

  • From: "al m" <ampm@xxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Fri, 15 Aug 2003 17:57:14 -0400

I have all this sencore equipment sitting here and forgot to use it. I put
the timing and load test on the chassis and the timing was good but the load
was bad. Disconnected all the pins on flyback stayed the same until I hit
pin 12 to the yoke down from 117 to 32. Soldered it back in and connected
another yoke up that I had laying here and the load stayed the same. So I
imagine the yoke is bad. If I'm wrong please someone correct me. I guess the
horizontal should have more rings than 17.
al marquardt
ampm@xxxxxxx
Al Marquardt Electronic Repair
206 W Main
Girardville Pa. 17935
----- Original Message ----- 
From: "Larry E." <videotech@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, August 15, 2003 5:00 PM
Subject: [TechAssist] Re: CTC169AB No Model # shutdown


> Al, If I remember right the 169`s don`t like being run with the yoke
disconnected, Check
> C4401 & C4402 off the collector of the HOT, good luck, Larry
> Larry Eastman
> American TV & Electronics
> Crystal River, Fl. 34428
> www.tvjunkyard.com
>
> al m wrote:
>
> > This came in with the HOT shorted. Replaced HOT with OEM and Damper
diode replaced caps in power supply. Standby voltage is correct. When power
button pushed high voltage starts to come up but stops at 5K, Regulated B+
is ok. Now here's what I tried. I took the horizontal yoke plug off and high
voltage came right up, then shut off then right up again, then poof went the
HOT.My question is by pulling the yoke did I Change the timing for the HOT
enough for it to run without shutting down or do I have a bad yoke? Yoke
rings 17 rings GOOD. Fly rings 27 rings GOOD. I don't have another HOT so I
have to find the answer.
> > al marquardt
> > ampm@xxxxxxx
> > Al Marquardt Electronic Repair
> > 206 W Main
> > Girardville Pa. 17935
> >
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