[TechAssist] Re: RCA CTC 187CN3, HOT overheats & dies--FIX
- From: gulftech@xxxxxxxx
- To: techassist@xxxxxxxxxxxxx
- Date: Thu, 29 May 2003 10:58:06 -0500
Friends,
Thanks to all who sent posts on this problem. Turns out it was bad HOTs.
He had put in two RCA originals; one failed, the other would have had he
left the set playing. Finally, he pulled one from another set to put in.
Set ran all night. Still cool this morning. The transistors look
identical, according to my friend Charlie.
Could it be a bad batch or, worse, clones?
Gosh, I hate it when things like this happens.
Regards,
Ken Smith
Gulf Technical Services
3034 Gulf Breeze Parkway
Gulf Breeze, FL 32563
850-934-8324 (Voice) 850-932-0819 (Fax)
On Wed, 28 May 2003 10:30:23 -0600 "LeRoy Westlund" <llw@xxxxxxxxxx>
writes:
> I would replace the Horz driver transformer (especially if it looks
> like it
> has been overheating.), and all the square high voltage caps in the
> H-out
> ckt.
> Also,...use the OEM part for the H.O.T. It is normal for these sets
> to run
> hot, but they will hold up pretty good, if you use OEM parts.
>
> LLW
>
> LeRoy Westlund
> Westlund TV & Electronics " Walk tall,...Walk straight
> 93 North Main and look the world
> Centerfield, UT 84622-0087 right in the eye "
> Ph./Fax 435-528-3822
> mailto:LLW@xxxxxxxxxx
>
> -----Original Message-----
> From: gulftech@xxxxxxxx <gulftech@xxxxxxxx>
> To: techassist@xxxxxxxxxxxxx <techassist@xxxxxxxxxxxxx>
> Date: Wednesday, May 28, 2003 8:31 AM
> Subject: [TechAssist] RCA CTC 187CN3, HOT overheats & dies
>
>
> >Friends,
> >
> >Please forgive me for bringing up a topic that has been discussed
> before.
> > (Remember, the "install a fan" topic that ran for a week?)
> >
> >A friend with a shop in Guntersville, AL called. Had a 187 with bad
> >flyback & shorted HOT. Replaced both (with RCA originals). Set
> ran, but
> >HOT very hot. Failed in a few hours. Tried another HOT with same
> >results. Has checked everything in the area. Found nothing bad.
> I know
> >this tech well--he worked with me about five years. Is good tech.
> >
> >Now, I won't suggest a larger heat sink or a 6-foot fan mounted 1/2
> inch
> >from the surface. Something is causing this failure. I have seen
> it
> >myself on the 187, but can't remember what I did to fix it.
> >
> >TIA,
> >
> >
> >Ken Smith
> >Gulf Technical Services
> >3034 Gulf Breeze Parkway
> >Gulf Breeze, FL 32563
> >850-934-8324 (Voice) 850-932-0819 (Fax)
> >
> >
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