[TechAssist] Re: STK 392-110 testing
- From: Larry <schntv@xxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Tue, 26 Jul 2005 18:51:57 -0400
i would guess about half the time it is not the STK and it is
only one, if it will play see which is off, vert or horiz, and
i replace that one.
and i have had good results, actually the replacement has
failed before the old one in a few occasions.
The hard one for me are the ones that wont show a pix, and
shut down in 15 seconds, and most of the time it is the
digital control board, not the STK.
so i change the stks first because they are cheaper, then
order the digital board.
i have called factory tech support many times to help me
decide which to replace and we guess it wrong about every time.
lol
first they say it is a convergence problem for sure, and the
digital seldom goes bad, but i have found more digital boards
out in the newer sets than STK.s. I call tech support back ,
out of frustration and then after me telling them i changed
the stk they say i should have changed the digital first.
lol
there seems to be no way to diagnose this first.
very frustrating to have a pile of used stks that are 90%
good., but afraid to trust them.
After all im not trying to fix these sets to last 10 years
with out trouble.
If the manufacturers arnt conserned about the life of their
set why should i be.
I called to order a part for a major brand PTV 2000 model,
and the tech chuckled and said you must know this is 5 years
old and time to replace it, why would we carry parts for it.
it is hard for me to change to these new business practices,
but I guess I must.
Larry
Kevin's TV Repair wrote:
> I believe that if one STK fails that the other one is not far behind.
> Another shop told me that Sony always says to replace both. Their
> experience (years ago when the STK's were $90 each) of replacing just
> one to save money ended up having the second STK fail after just a few
> months.
>
> My question is, what percentage of the time have you replaced the STK's
> and found it was something else causing the convergence problems?
> Thanks.
>
> Kevin Wilks
> Kevin's TV Repair
> Penticton BC Canada
> kevintv@xxxxxxx
>
>
> -----Original Message-----
> From: techassist-bounce@xxxxxxxxxxxxx
> [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Larry
> Sent: Tuesday, July 26, 2005 9:39 AM
> To: techassist@xxxxxxxxxxxxx
> Subject: [TechAssist] STK 392-110 testing
>
> over a few months i have replaced many stk392-110 sin pares,
> but probably only one was bad.
> also replaced and found it was no help to the convergence
> problems.
> i am sure 75% of these are good. is there any way to check them.
> the ones i know are bad i have scrapped, but now i have a box
> of used and probably good ones also.
> i have tried resistance readings compared to a new one and
> they are identical.
> but i dont trust them, even though some new ones seem to last
> shorter than the old ones.
> It bothers me to just always replace the stks every time i
> have convergence problems and then end up finding something
> else later.
> How can they be tested???
>
> Larry
>
>
>
>
--
Schneider TV & Electronic Inc.
5415 N. Wooster ave.
Dover, Ohio 44622 www.geocities.com/schntv2000/
330-343-0768 FCC. first class & Extra class K8WLY
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