Problem with Samsung TV

[mCassidy]

I have a Samsung TV that is having problems.
It is a HDTV CRT model TXN3071WHFXXAA.
We have had it for just over 3 years with no problems. Last night my
wife was watching a show and she said that she suddenly saw a bright
white light in the center of the screen like a hole and then everything
around that came in like a vacuum and went black. After that the TV
would not turn on.

This morning it did come on and seemed to work well for ~5 minutes and
then did the same thing.

I would assume that the tube has gone bad but I really have no idea...
and I'd like to have a little better idea if that is the problem and
what repair might cost (SW Ohio) before calling someone.

Any help would be greatly appreciated.

Matt

 

[Meat Plow]

I have a Samsung TV that is having problems.
It is a HDTV CRT model TXN3071WHFXXAA.
We have had it for just over 3 years with no problems. Last night my
wife was watching a show and she said that she suddenly saw a bright
white light in the center of the screen like a hole and then everything
around that came in like a vacuum and went black. After that the TV
would not turn on.

This morning it did come on and seemed to work well for ~5 minutes and
then did the same thing.

I would assume that the tube has gone bad but I really have no idea...
and I'd like to have a little better idea if that is the problem and
what repair might cost (SW Ohio) before calling someone.

Any help would be greatly appreciated.

The tube isn't bad. Just how much experience do you have repairing tv sets?

 

[mCassidy]

TV sets = little to none.

Not too bad with electronics to an extent. Building computers and home
wiring, etc...

II am heartened to hear that it is possibly not the tube..

 

[Meat Plow]

Subject: Re: Problem with Samsung TV
From: "mCassidy" <[email protected]>
Newsgroups: sci.electronics.repair
Date: 5 Jan 2007 19:03:01 -0800

TV sets = little to none.

Not too bad with electronics to an extent. Building computers and home
wiring, etc...

II am heartened to hear that it is possibly not the tube..

I'll assume it's a power supply problem. Several ways the unexperienced
tinker can suffer injury or even death. Your candid reply stating you have
little to no experience in repairing tv sets can edict the only response I
have and that is to get the set to a qualified tech. Sorry if that isn't
the answer you sought.

 

[mCassidy]

I appreciate the response.
Is the power supply an expensive fix?
I am ok with calling in a tech.. I like self-repair but I like life
even more.

 

[Meat Plow]

I appreciate the response.
Is the power supply an expensive fix?
I am ok with calling in a tech.. I like self-repair but I like life
even more.

There are step by step methods us techs use to diagnose. Some have been
garnered over years of experience. I use the flow chart method of "if this
is ok then check this, if that's ok then check this, if not, go here"
I understand and support your want for self repair but ventures like this
rarely turn out favorable. And I don't support a novice poking around
inside a set that has the real life potential to harm or kill you. If you
like self repair, take some schooling on it. Don't try to learn with
hazards that all sets have.

 

[mCassidy]

No, I'm cool with that. I read up a bit on monitors and death when I
was building my arcade machine.. not something I want to chance.

I am just wondering a range that fixing the power supply might cost.

 

[b]

mCassidy ha escrito:

No, I'm cool with that. I read up a bit on monitors and death when I
was building my arcade machine.. not something I want to chance.

we don't know *for sure* that it is the power supply. The fact that it
works for a time suggests to me bad soldering, possibly in the line
stage or power supply, or a component whose value drifts with warmup.
In any case it will need to be taken in to a service centre for
investigation and diagnosis. May be worth paying for that, so you know
the tech opens up the set and hence gives you a realistic idea of the
problem . (those with free estimates rarely do this!) This charge is
then usually discounted off the cost of repair should you go ahead.
As for cost, that will depend on the extent of the problem. That is not
possible to accurately say with internet guesswork, as nobody here has
actually *seen* the tv. If the set gave a good picture and is within
the last 8-10 or so years, I'd say spend about a third, or a little
more, of the cost of a new similar quality set.
good luck
-b.