[TechAssist] Re: help CTC187CL2 blows H Out transistor
- From: "Barry MacInnes" <foxhole@xxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 23 May 2002 09:37:04 -0500
Thank You Dan,
It was poor solder connections on the H driver transformer.
Best Regards,
Barry
----- Original Message -----
From: "Webster TV" <webstertv@xxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, May 21, 2002 9:07 PM
Subject: [TechAssist] Re: help CTC187CL2 blows H Out transistor
>
> Barry,
>
> I had a CTC187 in with the same problem of shorting the H.O.T., after
> replacing it, it would run a couple of days and short again. The H.O.T.
ran
> hotter than normal. I ended up replacing the Horiz. Driver Transformer
> # 215541 ) and C4306 ( #188594 ) to solve the problem of it running hot
and
> shorting. I also have a tip written down from another post earlier that
> C4709 ( 47mfd-50v ) can cause the H.O.T. to run hot also.
>
> Good Luck!
> Dan Webster
> Webster's TV
> Shullsburg, Wi.
> ----- Original Message -----
> From: Barry MacInnes <foxhole@xxxxxxxxx>
> To: Tech Assist <techassist@xxxxxxxxxxxxx>
> Sent: Tuesday, May 21, 2002 8:57 AM
> Subject: [TechAssist] help CTC187CL2 blows H Out transistor
>
>
> >
> > Hello Techs,
> > This unit came in with Q4401 shorted, it lasted a day and shorted
> again.
> > I relaced the flyback T4401 and returned to the customer. A week later
it
> > failed again Q4401 shorted. Has anyone seen this repeat failure? What is
> the
> > most common problem?
> > Thank You
> > Barry
> > TV Service Clinic
> > W. Lebanon, NH
> >
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