[TechAssist] Re: RCA CTC169, 31", flyback tested good but was bad

  • From: "Electric Medic" <info@xxxxxxxxxxxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Fri, 1 Apr 2005 19:29:02 -0500

You know it's funny how shops see different problems. I don't think I have
ever had a bad Flyback on a CTC169, and rarely on the CTC177 or CTC187
although we work on them all the time. I might have had a arching one or two
but never causing a dead set with no other symptom. Now, on the CTC197 or
the CTC195, or CTC203 they are bad many times. Do you all get bad fly's on
the CTC169 or PTK169 and very often? I don't think I even stock one for them
but stock duplicates on all the other RCA chassis.

Perry Bower
Electric Medic
"It's Cheaper to Keep Her"
http://www.electricmedic.com
3850 Washington Road  Suite 4C
Martinez, Georgia 30907
Phone: 706-8MEDIC4  (863-3424)
Phone: 706-863-3474
Fax: 706-863-2316
mailto:info@xxxxxxxxxxxxxxxxx


-----Original Message-----
From: techassist-bounce@xxxxxxxxxxxxx
[mailto:techassist-bounce@xxxxxxxxxxxxx]On Behalf Of terry goldstein
Sent: Friday, April 01, 2005 5:34 PM
To: techassist@xxxxxxxxxxxxx
Subject: [TechAssist] Re: RCA CTC169, 31", flyback tested good but was
bad


RCA flybacks are noted for that , we ran across an rca 32gt740 , CTC203ca12
parts finder lists the flyback as a 257151, bursma says they are on a 2 week
back order, we called vance baldwin and they said that that part don't go
into that set , you should use a 244247, so i ordered it , we looked it over
and the original said 28kv on the transformer and the replacement says 32kv,
now i think i know why they go out so much and beleive it or not they both
check the same, so you can't depend upon your checker to be telling you the
truth when it comes to rca transformers this set is running cool as a
cucumber now , only thing is you have to inlarge hole for focus and screen
control on the back slide housing
tgolds5559@xxxxxxxx
Terry's TV & electronics
212 Bank ST
Oak Harbor Ohio 43449
(419) 898-9641
----- Original Message -----
From: "Kevin" <kevintv@xxxxxxx>
To: "TECH-ASSIST" <techassist@xxxxxxxxxxxxx>
Sent: Friday, April 01, 2005 3:50 PM
Subject: [TechAssist] RCA CTC169, 31", flyback tested good but was bad


> The HOT shorted instantly at turn on.  All the timing caps, P/S caps, B+
> and horizontal frequency tested good.  The flyback tested good with the
> ring test, and the HR Diemens tester which tests the diodes and HV out.
> I finally subbed the flyback out with a known good one and the set
> worked.  My question is how could the flyback test good 2 different ways
> and still be bad?  I guess the final and best test is substitution.
>
> Kevin Wilks
> Kevin's TV & Video Repair
> Penticton BC Canada
> kevintv@xxxxxxx
>
>
>
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