Official Samsung PNXXE7000 - PNXXE8000 owners thread - Page 119

I'm not suggesting. I am observing. And I can make that statement because this is the fourth Samsung plasma panel in my home in the last year. Even at 3 inches the sound was not bouncing back from this position enough to hear. My wall is also stone, and not flat. I would suppose the distance from the wall is also a factor.

It is a known fact that plasmas buzz. It is inherent in the technology. I guess you did not read that this is my fourth Samsung plasma in a year. There was no buzz on all 4, except from the kitchen. There is a buzz in my new house in my new living room. It is not very loud and I usually do not even notice it, but if I turn my head just right; there it is. It is the same sort of buzz you will hear from a neon sign, but only if your ear is at the precise angle to the source. It has to do with the cycling of the phosphor gases.

That is because males start to lose their hearing at certain frequency levels in their mid 20s. It is very possible that your left ear has degenerated at a more rapid rate than the right. This could also explain why some do not hear it at all.

This is directly from Panasonic on plasma buzzing:

In response, I routed your email to our technical advisors who have advised
the following:

Plasma panel buzzing is a normal phenomenon. They work on a totally
different principle to colour televisions and have different operating
characteristics.
The level at which the operating buzz becomes noticeable is always
subjective, one person may hear it whilst another does not.

The following points help to understand the factors surrounding the
buzzing:

The picture scanning drive circuits operate at high frequencies and powers.
It is these circuits that cause the buzzing sound. The circuits are used to
create both the picture and reuse energy to keep the unit efficiency high
and panel heat emission low. This over-heating control is very important on
the panels that do not use fans i.e 37” and 42” The resulting loss of fans
makes for a quieter panel operation...

...The buzz will appear more concentrated at the sides of the unit since this
is where the power circuit boards are situated.

Because we do not employ cooling fans, the buzz may be heard in very quiet
surroundings. Plasma buzzing is normal and will always occur, but the level
of buzz is what matters.

Generally speaking the buzz will only be heard in quiet surroundings [with
low levels of audio from whatever sound system used] and with the user
seated too close to the panel [less than12’ for 42” and 10’ for 37” panels.

A typical scenario is using the panel in the middle of the night when
listening to news broadcasts at low volume. In this situation buzz might be
heard during the silent breaks in the audio, but not so much during speech.
This is not abnormal nor does it indicate a faulty panel.

If the buzz is heard above normal ambient daytime noise and audio levels at
more that 12’ a problem might be present.

The method of panel installation will also affect the amount of noise
heard. Wall mounting the panel will cause buzz emitted from the back of the
panel to be reflected off the wall and into the room more than if the unit
is located on the pedestal which is seated 2 to 4 feet away.

Hard wall surface i.e. painted/wooden panels will be more effective
reflectors than say walls that are covered in softer finishes, wall papered
or curtained.

Changing the picture mode in the picture settings menu between
dynamic/normal cinema will also reduce the level of perceived noise since
this affects how much power the panel is processing and this the level of
power produced.

Having too much brightness and contrast with the dynamic mode setting on,
can overdrive the panel and cause louder buzz levels with strong picture
signals i.e. DVD or Sky digital signals. Changing these settings can lower
the level of buzz produced. Use ‘normal’ picture mode and lower
brightness/contrast settings to reduce this effect.

It is normal for the buzz tone and level to change the picture content
because the panel drive circuits are processing different amounts of power
and adapting their drive cycles.

Plasma panels do not run in total silence. They do buzz as a normal part of
their operation but this level of buzz is quite low and may be
intermittently noticed in quiet surroundings.

Please ensure these facts are understood and check your panel against a
dealers display unit before requesting service since abnormal levels of
buzz are not always ‘abnormal’ but just the normal operating buzz of plasma
technology.


Enjoy your slice of humble pie. I hope it shuts you the **** up. It is obviously from the high voltage drive system required to cycle the phosphors.
Edited by Icon13 - 2/14/13 at 10:37pm

My obsession? Lol, you are a dumb ****. I stated that I can barely hear it, and it does not bother me. I also moved 2 weeks ago, and never heard it before that (except from the kitchen). Not much of an obsession. I was throwing ideas out there for people with veiwing set ups where the buzz is annoying them. This thread is flooded with people complaining about this issue. Everything I have said is in line with the explanation of Panasonic; including the veiwing environment amplifying the sound. And do some research about male hearing loss before opening your fat trap. It has been mentioned in numerous threads on this forum in regards to plasma buzzing. The only jokes here are the people who put in service callls and exchanges for buzzing sets.


NOW BOW. THE ALL MIGHTY MACACA HAS SPOKEN!

I have 1046.2 and have used a wired and wireless connection. I have never had this problem, so I doubt it is FW related or mine would do it too. Did you ever get the new mainboard? The wifi adapter is on the mainboard and might be bad. I suspect it could be the culprit. If it is FW related, perhaps there was an issue with your installation. Good luck.

If you can get your TV to stay on with an internet connection, try updating to 1047 and see if that helps.
Edited by Icon13 - 2/15/13 at 2:53pm

1046.2 was available for download before Samsung reflected it on their website too.

On another note, I just udated to 1047 without a hitch. This is unlike 1046.2, which still showed 1041 after the update. During this period my TV was glitching. Ex: volume bar not showing, laggy response. It was not until the following morning the issues were resolved, and it showed 1046.2.

1047 showed the current FW immediately after the update. No known issues thus far; no glitches. 1047 is looking to be more stable already.

Is good to have test monkey for new FW, no?
Edited by Icon13 - 2/15/13 at 3:34pm