Samsung F8500 Plasma Buzz and Buzzing, do they all? - Page 10 - AVS Forum
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post #271 of 292 Old 06-07-2014, 11:41 PM
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Originally Posted by estiff View Post

I recently purchased a new 60" Samsung F8500. Clearly a great picture and, for me, superior to anything else out there including the Panasonic VT60 and ZT60. This TV is replacing a professional series Panasonic (50phd8uk) that I loved but was 8 years old.

The problem I have is an annoying buzz that seems to exist throughout the TV, front/back/left/right. It is extremely noticable if there is no volume and even with the sound at 18 it continues to clearly buzz from 6 feet or so from the set. It's not really loud, just an annoying incesssant buzz that gets a little louder with lighter scenes. Since I still have my old set mounted and working, it was easy for me to confirm that the Panasonic does not make any such buzzing sound (except real close to the back panel) and therefore I do not agree that "all plasmas buzz," at least to the same degree as this set.

Here and elsewhere I have seen the same general statements, all plasmas buzz (at least since they became so thin) or all Samsungs buzz or something equivalent. It is believed that people that don't have the "buzz" issue just can't hear it or are luckily not that sensitive to it. Essentially, I think the advice is something along the lines of, 'dude, learn to live with it, or return it and go to a different brand.' I like the picture enough that I may have to learn to live with it, but if there's any chance to get a set that doesn't buzz I don't mind taking the inititive and time to make it happen.

After noticing the problem, from the very first time I turned it on, I called Samsung and scheduled a technician to come out. I received a call the next day. During the call to schedule the home visit I told them the problem and they were good enough to order (in advance) two internal boards that apparently often resolve the issue in so they could do more than just diagnose when they got out to my home. The parts took about 5 days to come in and they visited the day after that. The technician was very understanding, could hear it, and tried both of the boards, to no avail. He agreed to order a new panel, which is basically a new TV other than the frame.

He installed the new panel yesterday and it did not resolve the issue. It still buzzes, although there is little doubt that it buzzes less than the original panel. For that reason alone I am happy I went through the effort. But, if there really is the potential to obtain a set that doesn't buzz I would sure like to do so. I just came from BB/Magnolia where I tried my best to find a buzz in their display set so that I could satisfy myself that there really isn't a fix to this problem. I turned down the volume on as many sets as I could and put my ear right against the front of the panel and the rear of the panel. I honestly could not hear much, if any, buzz on the set in their store. Of course, there's a significant amount of ambiant noise so that certainly could be the reason. But I really tried to hear it, but didn't.

Long story short, would I be wasting my time pushing this issue further with Samsung or the retailer and try more panels or a new set altogether? I know some people don't hear the buzz but I think the annoyance of the buzz may very well be personal to the listener. In fact, the technician told me yesterday that he was in another home repairing the HDMI input on an F8500 and said he could hear the buzz but the customer wasn't complaining to him at all about it. I felt better that the technician could hear it but even he couldn't definitievely say whether the buzz was within normal levels or not.

I wonder if anyone had an F8500 and returned it because of the buzz and ultimately received one that didn't buzz. That would help determine if the buzz is on all of them or not. Wish I could just listen to five or six of them myself, but maybe finding out if anyone who hears the buzz was able to resolve it, is the next best thing.


I have the 50phd7uk....hard to imagine a better picture...have you actually found the 8500 to be better? If nothing else, concern for loss of detail going from 50" to 64". Thanks! (and have heard the 60" Samsung has much greater problem with buzzing than the 64" (something to do with the power supply). Colleague purchased the 64" --- no buzzing.
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post #272 of 292 Old 06-07-2014, 11:46 PM
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Originally Posted by DPulp View Post

Low volume I can hear it for the most part. In between dialogue exchanges sure. This is the directional buzzing not the normal plasma buzzing I'm talking about (that doesn't bother me, nor do I notice it much). This is unlike anything I've ever heard before. I wouldn't say it changes in intensity much, but black scenes seem to be the worst. I've only had it a day and put in maybe 8 or so hours. If I can hear it over a show or movie it's a problem, but unfortunately I'm listening for it now so it's hard to tell (and I swear I hear it everywhere now, so maybe I'm going mad). 

So your centered buzzing diminished after 500 hours? Or was that the normal buzzing?


Is the buzz at all high-pitched? Thanks.
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post #273 of 292 Old 06-07-2014, 11:51 PM
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Originally Posted by Ken Ross View Post

Estiff, I do believe all plasmas buzz, but in varying degrees. It's almost futile to ask the question 'Does your plasma buzz'.

There are so many variables between hearing acuity, ambient room conditions (carpeting, window treatments, ceiling heights etc.), altitude, mounting approaches, seating distances and angles from the screen etc., you could have your very panel in 20 different homes and get 20 different responses.

If you can live with the buzz of your panel, then I'd say keep it. I don't think your odds of getting one much better will be great. If you read some other threads for other manufacturers, you'll see some people have fan noise in addition to buzzing. Only an LED will mitigate these issues, but then you'll take a hit in PQ with today's LED offerings.


I own Panasonic plasma....zero buzz.
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post #274 of 292 Old 06-07-2014, 11:53 PM
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Originally Posted by echoesian View Post

I'm having the same situation, I could hear the annoying high pitch buzz noise even I sit 10 feet away from the TV.


So the buzz IS HIGH -PITCHED! Ugg. Would be certain deal breaker for me no matter how slight if high-pitched.
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post #275 of 292 Old 06-07-2014, 11:56 PM
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Originally Posted by echoesian View Post

After a thorough inspection just now, I notice that the high pitch loud noise is actually coming from the left rear side of the TV, the right side is rather low in volume and the sound is low pitch instead.


High-pitched? Ugg.
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post #276 of 292 Old 06-08-2014, 04:52 AM
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The other 2 non-center- screen buzz types are fixable according to the posts on the 3 main F8500 threads

see my link on this page several posts ago to 3 F8500 buzzes

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post #277 of 292 Old 06-09-2014, 08:33 AM
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I would say it's high pitched if you angle your head right. Not always though. My buzz has diminished a bit and I'm close to 300 hours. I rarely notice it now that I'm not as concerned with it.

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post #278 of 292 Old 07-01-2014, 01:00 PM
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Has the front facing buzzing problem improved at all as they continue to build these models? I'm looking at getting the 64 inch but the buzzing would be a deal breaker for me. I have a 5 year old panny plasma now and if I put my ear behind the unit I hear the buzzing but there is no buzz from the front. Looking through this thread it sounds like the 64 inch models are not as bad as the 60 inch one's … is it random whether there is a buzzing problem or does your elevation (I'm 240m above seat level) partially to blame for the front buzzing issue? Thanks
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post #279 of 292 Old 07-02-2014, 02:46 PM
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Originally Posted by Bobby244 View Post
Has the front facing buzzing problem improved at all as they continue to build these models? I'm looking at getting the 64 inch but the buzzing would be a deal breaker for me. I have a 5 year old panny plasma now and if I put my ear behind the unit I hear the buzzing but there is no buzz from the front. Looking through this thread it sounds like the 64 inch models are not as bad as the 60 inch one's … is it random whether there is a buzzing problem or does your elevation (I'm 240m above seat level) partially to blame for the front buzzing issue? Thanks
I bought the 60" last weekend and have very loud buzzing, I sit about 10 feet away from the TV. It's going back this weekend. Really sad because it is a stunning television, really everything else about it is mind blowing but the buzz is horrendous. I've sifted through dozens of forums and nobody seems to have a fix. Also, you should know that the F8500 runs incredibly hot - After watching a movie for a couple of hours I used my laser thermometer to measure the temp of the back panel and it was 132°F - VERY hot to the touch. Lastly, the date of manufacture on mine is 5/2014 so doesn't look like Samsung is going to do anything about it.
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post #280 of 292 Old 07-02-2014, 05:22 PM
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I am also in a similar predicament with my PN60F8500. I bought mine from Abe's of Maine so I have little recourse on returning it, but the buzzing is just too much to bear. I've tried to watch several movies on this display and I end up just obsessing about whether I can hear the buzzing every time there is a quiet scene and it is just too much. I agree with everything that has been said here as well, great picture just a horrible defect that isn't getting resolved. I may have to end up selling this used and seeing what I can get out of it. Not good at all.
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post #281 of 292 Old 07-02-2014, 07:34 PM
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I bought the 64 inch F8500 tonight, set it up, and don't hear any buzzing. I've been watching with the sound fully muted and there is a light buzz but to me it's no different then the sound my 5 year old panasonic had. With the sound on I don't hear anything. If I angle my head with my ear towards the TV the buzzing is slightly louder with no sound but with sound I am not hearing anything that bothers me (thankfully).
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post #282 of 292 Old 07-05-2014, 06:38 AM
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After spending a few days with the 64 inch 8500 here are some new thoughts on the buzzing for those that are interested

- There is a slight buzz if you mute all audio and turn your head to the side (pointing your ear directly at the TV), this is very minor to me and I probably wouldn't have even noticed without reading about the buzzing issues on this forum (knowing it exists is probably 80% of the problem)
- I think the distance you sit away from the set and how well you hear are two major factors in how sensitive you're going to be to it
- I can only hear the sound if I am sitting directly in front of the set. Best way I can describe this is I can only hear it if I'm directly in front of the TV, picture the ray of sound only coming from within the TV's borders directly forward. Example if the TV was on the ground and you stood up and your ear was above the top of the TV you can't hear the buzzing. If your TV was really high and you sit below the bottom of the set you can't hear the buzzing. If you have a couch directly in front of the TV and a lazy boy chair beside the couch but not directly in front of the TV you won't hear it while sitting in the lazy boy but would hear it while sitting on the couch. It's only when your ear is turned directly to the TV within it's direct forward facing direction (and who watches TV with their head turned to the far left or right and their ear facing the TV?)

Solutions:
- As some have posted the buzzing can fade over time
- Sit further away from the TV if possible
- If mounting the TV mount it slightly higher so you're eye level is at the bottom of the TV, or play around with the angle of the mount


Maybe my set just isn't as bad as some have posted but I think if you're hearing this there are ways around the buzzing. For me it's not bothering me at all, I was more curious than anything. With audio I don't hear it and if I mute the TV it's a very light buzz noise. Personally I am in the middle of finishing my basement so I am going to mount it slightly higher so my eye level is at the bottom of the set
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post #283 of 292 Old 07-16-2014, 10:15 AM
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I got my PN60F8500 TV yesterday. It's been turned on for about 4 hours.There is a noticeable buzz. I think it might be something I can get used to,but should I have to? I'll hang onto it a for a short while to see if it goes away or if Istop noticing it. I'll try to remember to follow through on this forum on mydecision and how the TV performs.
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post #284 of 292 Old 07-16-2014, 10:20 AM
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My 64" is pretty quiet. It has a minor buzz you can hear if the house is completely quiet and you approach the set from the back. Certainly nothing objectionable.
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post #285 of 292 Old 08-05-2014, 06:45 AM
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I bought my pn60f8500 from Paul's TV about 10 days ago. Mounted it, turned it on and also got a very loud buzz. I was really disappointed. However, about halfway through the update, buzz pretty much disappeared.

Have you guys done the update yet on your TVs? I don't know if it's a firmware update or software update but it takes about 30 minutes and your set has to be connected to the internet of course.
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post #286 of 292 Old 08-05-2014, 12:52 PM
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Virtually no buzzing from the 64" that we just purchased. If I mute the sound and hold my head right up to the panel there is a very slight buzz, but less than my old Pioneer 5050HD and I have to be within 6" to hear it at all. When I purchased my set at Magnolia I asked them about it and I was told that some customers had to swap out several sets before they got a quiet one. So I guess the issue is completely random, some have it and some don't.
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post #287 of 292 Old 08-05-2014, 01:44 PM
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Quote:
Originally Posted by jza80 View Post
Virtually no buzzing from the 64" that we just purchased. If I mute the sound and hold my head right up to the panel there is a very slight buzz, but less than my old Pioneer 5050HD and I have to be within 6" to hear it at all. When I purchased my set at Magnolia I asked them about it and I was told that some customers had to swap out several sets before they got a quiet one. So I guess the issue is completely random, some have it and some don't.
I have to disagree with this. Some hear it, some don't. All plasmas buzz. Samsung has a description on their website of why a Plasma TV buzzes.
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post #288 of 292 Old 08-05-2014, 09:28 PM
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How is the buzz on the PN43F4500? I'm thinking about one of those, due to size limitations of my entertainment cabinet. I asked in the F4500 owners thread, and only one people responded saying it isn't noticeable. I read one review on BB and the person said it was bad on the PN43F4500 and had to replace with the LG 42PN4500 that was silent.

I have a Panasonic 36" TAU CRT HDTV since 2001 and the only buzz I get is when the image is really bright, as high pitch buzz from the back.
Thank you.
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post #289 of 292 Old 08-05-2014, 10:35 PM
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Quote:
Originally Posted by HLdan View Post
I have to disagree with this. Some hear it, some don't. All plasmas buzz. Samsung has a description on their website of why a Plasma TV buzzes.

My Panasonic has for all intensive purposes zero buzz. Never heard it in ten years. If I place my ear within an inch of the back of the set I can hear a slight buzz.
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post #290 of 292 Old 08-06-2014, 08:17 AM
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Guys I don't think buzz is a big issue. There is a thread here where one member has been able to eliminate this buzz completely by tightening and loosening some screws behind.i think you all need to give a shot at this.

Also try to keep the tv for a few months till its run in properly to see if the buzz fades away.
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post #291 of 292 Old 08-07-2014, 06:32 AM
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Originally Posted by sdwtchlvr View Post
I bought my pn60f8500 from Paul's TV about 10 days ago. Mounted it, turned it on and also got a very loud buzz. I was really disappointed. However, about halfway through the update, buzz pretty much disappeared.

Have you guys done the update yet on your TVs? I don't know if it's a firmware update or software update but it takes about 30 minutes and your set has to be connected to the internet of course.
Which Firmware ? I read a lot of post that recommand to not update the firmware becauce its bring bad PQ.
I don't know what to do...
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post #292 of 292 Old 08-08-2014, 03:10 AM
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Originally Posted by karting19 View Post
Which Firmware ? I read a lot of post that recommand to not update the firmware becauce its bring bad PQ.
I don't know what to do...
Quote:
Originally Posted by HLdan View Post
I have to disagree with this. Some hear it, some don't. All plasmas buzz. Samsung has a description on their website of why a Plasma TV buzzes.
Quote:
Originally Posted by sdwtchlvr View Post
I bought my pn60f8500 from Paul's TV about 10 days ago. Mounted it, turned it on and also got a very loud buzz. I was really disappointed. However, about halfway through the update, buzz pretty much disappeared.

Have you guys done the update yet on your TVs? I don't know if it's a firmware update or software update but it takes about 30 minutes and your set has to be connected to the internet of course.
Quote:
Originally Posted by mortal90125 View Post
I got my PN60F8500 TV yesterday. It's been turned on for about 4 hours.There is a noticeable buzz. I think it might be something I can get used to,but should I have to? I'll hang onto it a for a short while to see if it goes away or if Istop noticing it. I'll try to remember to follow through on this forum on mydecision and how the TV performs.

In post after post, some seem not to want to acknowledge (or realize) that there are 3 distinct buzzes with this set;
1) The front Directional Screen Buzz,
2) Rear Mesh Panel Buzz
3) "Normal" Plasma Buzz - the 3rd has nothing to do with what most are talking about & the former 2 types can be heard by almost everyone with normal hearing...
Unfortunately & sadly, the Rear Mesh Panel Buzz seems to be the only fixable one


Any "all plasmas buzz", "it's your too sensitive hearing" and other such ridiculous statements come right out of the mouths of Samsung CSR staff, trying to blow off complaints.
If one scans through the 20,000 plus posts in the 4 or 5 F8500 topics here at AVS, to get educated about their pertinent issues, one will find this holds true
These issues are even posted on Samsung's own site - & the 60" has the most complaints & 51" the least.
It has even earned its own joke - "the panel buzz lottery" label. However, the last ~6 months seem to favour the 64" as quietest, but 51" has been discontinued.


It has been recently reported (yet to be established as concrete), that a recent firmware update has decreased The front Directional Screen Buzz,
But at the cost of brightness (one of this sets best features)


!!!!! POSSIBLE F8500 PLASMA BUZZ FIX !!!!

After about 4 months of putting up with an annoying audible low buzz on my replacement 60F8500,
& since I had to pull out the TV & component stands to install my Oppo 103D,
a friend came over to help, I decided to take it off the stand & raise the set up
a bit by putting it on the TV stand's built-in Vesa mount assembly.

Well!! after doing that, did it ever start to buzz VERY loud, like a warehouse flourecent
fixture's ballast going bad!! From the top left corner, when facing the rear, from my friend gripping that corner when moving the set.
This was a totally new buzz & from a new area.

!!!! THE FIX !!!!

So I went around the back metal panel, pushing with a finger or squeezing the bevel in/out/towards the panel, on different areas all around the back & I found out by doing that, I could get the buzzes to stop or I could actually create a new buzz or increase or decrease existing buzzes all around the back. I took a Philips screwdriver & loosened or tightened the screws, sometimes squeezing the bevel or metal cover or some combination of the two, or sometimes just backing the screw out then in without touching the set. I had to play around with that in different areas.
Sometimes when I loosened/tightened a screw, it would cause a buzz from an adjacent area. Some screws needed to be tightened more, some had to be backed off a bit.

!!!! THE RESULT !!!!

Any buzzes that are remaining, are so low, they are only heard with ear placed a few inches from set.
Except for the 1) The Front Directional Screen Buzz, which never changed & is still very annoying from time to time. (But not as bad as my 1st horribly loud set that was exchanged)
The current set got much worse (#1)) when I took of the stand & mounted it ~8" higher on the stand's mount.

I'm not surprised, as Samsung itself since ~2009 have offered a warranty kit with gaskets or plastic washers for their plasmas. (kit no longer supplied)
I came across many instances of this when researching my F8500 purchase - I had hoped I could get a good 60".
Not so... sadly

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