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Question

Tube going out in my home theater unit

Oct 28, 2018 3:12AM PDT

I have a home thether unit HT-E6750W/XT that's about 4 years old and one of the tubes will go out after say 5 to 10 after turning it on. Does not matter what I am listing to it does it all the time, I do not hear a difference in what's playing when this happens.

Before anyone say I should take it in for service well let's just say here in Thailand Samsung is the worst and yes I did.

I tried to source a new tube and found a shop that specializes in tube products (they can get a replace tube) but they told me that a tube either works or not it does not come on then go off after a while.

My question is this true what this shop told me can a tube work and then stop, and is so what may be the problem, any other users has this unit and can share with me. I also had a volume problem which again Samsung was no help (pointless going into details why) that I eventually found instructions on a work around on YouTube.

Thanks all.

Discussion is locked

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Answer
GET THIS NOW!
Oct 28, 2018 9:14AM PDT
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Tube going out in my home theater unit
Oct 28, 2018 1:06PM PDT

Thanks for the link, but it does not help or answer my original question.

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That would have me second guessing the techs
Oct 28, 2018 1:40PM PDT

And those techs may have worked on this model. BUT I can write that many pieces of gear do fade in and out so I have to disagree that it's black and white. That is what I disagree with: "When it's the tube it just goes out and stays out."

So there's where you find techs in disagreement and again back to not going to answer that question.

Since it is a tube and we were lucky to find a service manual my view is to order up the TWO TUBES and replace them and hope for the best since what's next is likely the entire amplifier board. Why? Diagnosis on the bench with oscilloscope is usually more costly than the boards.

PS. Edited for clarity.

Post was last edited on October 28, 2018 1:58 PM PDT