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

  • From: Edward Gaidies <teltek3@xxxxxxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Fri, 01 Apr 2005 20:13:28 -0500

Same here Perry.
I don't recall ever changing a CTC169 Flyback.
A couple of CTC177 and 2 CTC187's in the past year.
Not a common problem here....although I suppose Southern states with more
humidity will see different problems.

-Ed-
-- 
Tel-Tek Electronics
Ontario-Canada

teltek3@xxxxxxxxxxxx
teltek@xxxxxxxxx

> From: "Electric Medic" <info@xxxxxxxxxxxxxxxxx>
> Reply-To: techassist@xxxxxxxxxxxxx
> Date: Fri, 1 Apr 2005 19:29:02 -0500
> To: <techassist@xxxxxxxxxxxxx>
> Subject: [TechAssist] Re: RCA CTC169, 31", flyback tested good but was bad
> 
> 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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