[TechAssist] Re: [Fwd: RCA 31" CTC187CN2 HOT shorted, replaced with RCA OEM, runs warm]

  • From: Dennis Viereck <wa6ati@xxxxxxxxxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Fri, 11 Jan 2002 21:02:04 -0800

How about the heat sink? Is it also running at 152 degrees. If not, it should be
running close. Is the heat sink compound fresh?

Dennis Viereck

Wayne Vanaman wrote:

> Phil:
>
> I have a 187 on the bench, been running for about 2 hours in a 78 degree
> room.  The STK measures 152F with my IR thermometer, and yes, too hot to
> touch for very long.  The things DO run hot.
> Oh, the HOT measured 148F.
>
> Wayne Vanaman
> Omega Electronics
> 6904 W Fairfield Dr
> Penacola, Fl.  32506-3310
>
> 850-456-5995 voice
> 850-458-6369 fax
>
> Mailto:Wayne@xxxxxxxxxxxxxxxxxxxxx
> WWW.PensacolaTVRepair.Com
>
> ----- Original Message -----
> From: "Phil Bader" <philbad@xxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Friday, January 11, 2002 1:07 PM
> Subject: [TechAssist] [Fwd: RCA 31" CTC187CN2 HOT shorted, replaced with RCA
> OEM, runs warm]
>
> >
> >
> >
> > -------- Original Message --------
> > Subject: RCA 31" CTC187CN2 HOT shorted, replaced with RCA OEM, runs warm
> > Date: Fri, 11 Jan 2002 14:05:18 -0500
> > From: Phil Bader <philbad@xxxxxxxxxx>
> > Organization: Jan Phyl TV Inc. Winter Haven, Fl.  Estab. 1976
> > To: "CONSUMERELREPAIR-L@xxxxxxxxxxxxxxxxxxxx"
> > <CONSUMERELREPAIR-L@xxxxxxxxxxxxxxxxxxxx>
> >
> > Came in with the usual whine when plugged in.Shorted HOT. I used an
> > RCA/OEM ver. of the BUH517 # 223942. I also changed the STK730-150,
> > figured it was stressed. It seems to me after 30 minutes running, the
> > HOT sink is uncomfortably warm to touch(can't keep finger on it for
> > longer than 3 sec.), tho picture,etc is perfect. I have a "kit" I put
> > together containing Q4401 HOT,C4402,CR4402,R4402,CR4403,C4407 as well as
> > the STK730. At this point only the HOT and STK are replaced (The STK was
> > probably OK). Should I install the rest, or am I missing another part
> > causing this warm symptom.Maybe this is normal. Suggestions...
> > ------------------------------------------
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