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Picture problem with a 52" Samsung LCD tv

by weedmo / May 19, 2009 10:07 PM PDT

Several years ago, after research, I bought a 40?Samsung flat panel LCD. I was very happy with it and became a loyal customer. Since then I have bought a DVD player, a 52?LCD and very recently a 32?LCD. Now I am wondering if I did the right thing. The 52?tv (LN-T5265F) was purchased two years ago. I loved the set until about a month ago. It now has an intermittent problem. Sometimes the sound comes on with no picture. When this occurs, there is a humming sound in the right side of the set. The first time it occurred, I turned it off for a couple days. Then it was fine for about a week. The second time, my wife kept turning the set off and on and eventually the picture came on. Looking on the internet, I found several other reports of this problem with Samsung with no solution. I would like to know if this intermittent problem can be fixed.

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Picture problem with a 52" Samsung LCD tv
by Samsung_HD_Tech Samsung staff / May 21, 2009 11:04 AM PDT

weedmo,

The picture loss with audio is usually a sign of HDCP (copy protection) from the source. I would suggest unplugging the cable box and trying it again.

I can't explain the humming sound, but would recommend having a service technician take a look at that.

Are you still having the intermittent turn on/and/off?

--HDTech

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Not sure I explained the problem well
by weedmo / May 21, 2009 10:26 PM PDT

Thanks for your response. I may not have stated the problem very well. Most of the time when the set is turned on it operates perfectly. Occasionally, when the set is turned on no picture comes on, just sound. When this occurs there is a low humming sound on the right side. Once the problem corrected itself by just turning the set off and not using it for a few days. The second time, my wife just kept turning it off and on until finally the picture came on. Right now it is working perfectly and has been for the last week. My concerns are:
1. that this brand has this problem and no one has been able to correct it
2. calling in a technician, if I can find a qualified one, will not help if the problem is not present when the technician comes.
3. I have been told that trying to fix these electronics problems usually costs more that just replacement. $3000 for a set that lasts 2 years is a little hard to take.

Right now I want to know how to proceed. Any further advice would be appreciated.

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Not sure I explained the problem well
by Samsung_HD_Tech Samsung staff / May 22, 2009 7:59 AM PDT

weedmo,

Well, the no-picture-but-audio symptom could be an HDCP issue. I am concerened, however with the humming you're reporting. That's not what I'd consider normal operation.

I would recommend having a technician take a look at that, and you can get one dispatched to you by calling 800-SAMSUNG. If you have an issue where you can't duplicate the symptom, keep your service ticket handy and let me know.

Keep me posted.

--HDTech

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Want to set the record straight about my picture problem.
by weedmo / July 14, 2009 4:13 AM PDT

I just wanted the Samsung representative to know the outcome of the problem that I reported. I have been using that tv alot trying to get the problem to repeat. It has been several weeks now and the set is working beautifully. I have not contacted a technician as advised. I believe that your first suggestion about the cause must have been correct; at least that is my hope. My faith in your product has been restored and I thank you for the attention that you gave my problem. I remain a loyal customer.

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Want to set the record straight about my picture problem.
by Samsung_HD_Tech Samsung staff / July 14, 2009 5:31 PM PDT

weedmo,

Thanks for your kind words. Happy

--HDTech

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Guess I spoke too soon
by weedmo / August 12, 2009 11:35 PM PDT

In my last message I reported that I thought you were right about the problem and that the set is fine. I guess not. Last week it happened again. This time the satelite service was not on. I was going to play a DVD. The picture would not come on. I tried unplugging the whole system and it still didn't come on. Finally, we repeatedly turned the set on and off about 20 times and finally it came on. As I stated before, when it does not come on there is a weak hum. After it came on, it has been working fine ever since. Your last suggestion was that I call a technician, which I guess I will do. My question now is... do I need to wait til it stops working or should I just call one now? The problem is that once it didn't work and I left the set turned off a couple days and when I turned it on it was fine. I await your suggestion and thanks for the support.

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Guess I spoke too soon
by Samsung_HD_Tech Samsung staff / August 13, 2009 1:33 PM PDT
In reply to: Guess I spoke too soon

weedmo,

Sorry to hear that the problem returned.

I would call a technician now, and get the issue addressed early. It gives you more residual time on your warranty, and really - there's no sense in waiting until it doesn't turn on (if it comes to that) to call.

--HDTech

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Any other suggestions?
by weedmo / September 25, 2009 9:52 AM PDT
In reply to: Guess I spoke too soon

Well, I did what you suggested. I called Samsung and they referred me to a local technician. They kept my tv for almost a month. As you might expect, the problem never showed itself. They suspect that it may be the panel, but aren't sure. As I thought, they can do nothing if the problem doesn't show up. They advised that if it is the panel, it probably would be too expensive to be worth fixing. I guess I am right back where I started. The set is great, but it's like playing the lottery. You never know when you push the botton whether it will come on that day or not. Frustrating to say the least. Do you have any other suggestions? I have heard that this has been a problem with Samsung flat panels. I like the picture quality so I have two other flat panel sets and I have recommended Samsung to my daughter. She now has two flat panel Samsungs too. I appreciate the time you have taken to respond to my questions. Any other ideas you have would be surely welcome.

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Any other suggestions?
by Samsung_HD_Tech Samsung staff / September 27, 2009 4:07 PM PDT
In reply to: Any other suggestions?

weedmo,

If the technician is willing, have him try swapping out the power supply. That's the best suggestion I have at the moment.

Keep me posted.

--HDTech

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still following your suggestions
by weedmo / September 28, 2009 8:03 AM PDT
In reply to: Any other suggestions?

I called the technician like you suggested. I told him that you suggested trying a new power supply. He indicated that a new power supply is usually what Samsung will suggest first. He will put one in, but it will cost almost $300. That wouldn't be too bad except that he really doesn't think that is the problem because it is so intermittent. He feels it is more likely the panel. I was looking back at your messages and I guess you thought the set is still under warranty, which it isn't. The warranty expired about 4 or 5 months before the problem started. I feel like to spend much more money on the set without any assurance that is the problem wouldn't be prudent. You never did really answer my question about the propensity for Samsung flat panels to have this problem. If you have any further ideas about this set, I would of course welcome them.

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further questions
by weedmo / October 2, 2009 1:23 AM PDT

I have a couple other questions. Do you agree with the technicians evaluation that the problem could be, but probably isn't the power supply or do you think the power supply would be a good gamble?
Also, of the 5 Samsung flatpanels that our family owns, this one is the largest. My wife is concerned that, if we replace it, perhaps the size increases the likelihood of a problem is occuring. Does the size of the set contribute to the likelihood of this kind of problem in any way? Or are problems more likely the larger the set? Finally, does the technology of the new LED flatpanels currently being introduced make them any less susceptible to this kind of problem? Thank you.

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: further questions
by Samsung_HD_Tech Samsung staff / October 4, 2009 2:43 PM PDT
In reply to: further questions

weedmo,

A technician who can see the unit and open it up and look around will always have a better chance of a diagnosis than me, sight unseen. I don't have a recommendation.

As far as the size difference, size shouldn't make a difference either way. I don't see why you'd have more problems with a larger set versus a smaller one in terms of long term ownership.

--HDTech

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52 Samsung LCD Tv
by jake3434 / April 1, 2010 10:42 AM PDT

I have a problem with my 52 inch LCD Samsung TV. When turning the TV on the picture would appear for a few seconds then dissapear. The sound would be still on. I called the local Samsung agent and he came around and took the TV away. Six weeks later the TV returned after many calls to the repair company. They told me that they had repaired the power supply. Anyway a few weeks later the same problem reappeared, so i called Samsung and they gave me the details of another repair agent. The tech came around and checked the TV out. He identified a fault with the backlight board on the LCD panel and said that they would have to replace the LCD panel as the board wasn't avaliable as a seperate item. Three weeks later he returned with a new LCD panel and replaced it. The next morning when I turned the TV on it had the same problem. I have called the tech again and he will be back in a week to check it out again.This problem only occurs when we have high humidity. If it's rainging then the problem will appear, when it's dry or low humidity then it's ok. The TV is not near an open window. After reading internet fourms and seeing that many people are having these kind of problems I think is a design fault with the larger TV's as they use higher voltages and are more prone to hunidity problems. I have a smaller Samsung 32 inch TV that has never had a problem.
My TV is still under the manufactures warranty and I also purchased an extended 4 years, so with a 7 year warrenty it gives me some relief. As the TV tech are at a loss I was wandering what else could be the problem as both the screen and power supply have been repaired. What else could it be.

Frustrating!

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