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Sony Bravia Making Humming/buzzing Sound


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Hi,

I got a new 46 inch Sony Bravia X-Series in September using the group buy that was organised at this forum. The TV has been great. Very happy I got it and I've had no problems with it until now. I'll try and describe it.

When the TV was on previously, it was very quiet. Could hardly hear it and that was good. Not when it is on, it constantly gives off a buzz or a type of humming. Sounds similar to when you are playing the XBOX 360 with its loud humming sound.

Is this normal? It never did this for the past 4 months and now all of a sudden. I work every day from 6 until 7 so it's off during the week and on for maybe 30 mins each night up to a max of 2 hours some nights. A little longer on the weekend.

Is there something wrong with this one? I got the 5 year warranty with it so it's covered but this buzzing is starting to get annoying. When I watch TV at night with the volume down, I have to have the volume above 10-12 otherwise the buzzing makes too much noise.

Any help is appreciated.

Thanks

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Could it be a fan? It sounds like a fan running.

If it is though, why did it start up all of a sudden after 5 months and what does this mean? Is that standard for a fan to be noisy after a certain amount of time or should I ring Sony and talk to them about getting it replaced?

Thanks

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O have the same problem with my 40xbr, sony is coming out next tues to have a look at it! I also heard that it might be a firmware problem as there are apparent updates for it in the UK, not sure if the updates are out in AU thu, will find out on tuesday! It is annoying i know!

Thanks

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Yeah I got that problem as well on my 46x. I just got the tv yesterday and as soon as i switched on, i could hear the sound. I didn't think it is a problem until now i've read ur post.

The buzzing sound is not that loud though, so i can't hear it when im 3m away. But it's clearly there if i stand behind the tv.

I've called Sony, they haven't heard anything about it before

I've called Harvey Norman, where i bought the tv, the Manager said it maybe because of running for the first time. He told me to turn on the tv for 8 hours straight and see if the noise gets louder. He would replace it if it's faulty.

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Sounds like the fans for the lamps. I never noticed the noise in the shop and was quite surprised at how loud it is when I first heard it. It's quite noticeable if I'm up close to the TV, like say changing DVDs, but I've never heard it while watching TV. I figure it's no big deal - I do check to see how hot the case gets from time to time.

I suggest going into where a retailer and sticking your head round the back of one the have on display. You'd at least be able to judge if yours was louder than that.

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yea i have a buzzing noise too, i think it would be the fan cuz the tv screen gets quite hot when its on

not too sure though, i hope thats the case and its not a problem with the tv, cuz i've only had it for 4 days!

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My problem isn't that though. It's hearing the fans sitting 2-2.5 metres away from the screen. Not walking up and listening for it. When I mute the TV, I can hear it buzzing from 2m away.

Granted this is late at night at the TV volume is only at like 7 or 8. Once I pump it up to 12+, I can't hear it anymore because the sound drowns it out but I've watched TV on it for 5 months at night on 7 or 8 and it was quiet as a mouse and now all of a sudden it sounds like there's an industrial fan under it.

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i can hear it from about 2.5m away too with volume on, if alot of people are having this issue, im sure its not a problem then. just the fans cooling the tv panel

maybe cuz its summer now and the panel heats up more, thus requiring the fan to spin harder?

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NO, the fans turn on even if the panel is not hot, it is a a fault with the tv. It may not be a problem such as manufacturers fault, but it is a design fault, which is a problem... Hopefully they can rectify this fault soon, as i can hear it from 2m away!

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Yeah i just checked and i can hear it 2 meters away from the tv if i had it muted.

Seeing that so many ppl got the same problem, it may not be a problem.

I've called Sony, and they said they have not yet heard a concern regarding to this matter.

@_@

I'll just see how it goes in the next couple of days.

But I think donkey33's problem is another issue because it only appeared recently, not when he bought the tv.

Maybe donkey33 never paid attention to it before until now?

It maybe just the fan is running when the tv is on.

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I just read the product manual, and the last page (page 46), under Sounds, it says that there is a whirring sound which is the sound of the internal fan, and is not a malfunction. Not sure if that's the whirring sound we are hearing.

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It's as good as silent on my 40X3100. It can only be heard by getting close to the TV with all sound muted.

Sounds like you may either have a faulty fan, or the TV's running extremely hot and the fan's ramped up in speed.

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I am so glad I got a 40w. Not only did I save some cash I also have the benefit of no fan to fail. Not to mention the lack of motion flow artefacts and a non distracting bezel. Keeping it simple is much better.

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Yeah, just read the back of the booklet and found that.

Point is though that they shouldn't be that loud so I'm still going to ring to see if anything can be done because on my set, this sound was non-existent for 5 months and now all of a sudden it is.

For the 5 months before hand, if I lent over the back of the TV, I could hear a slight buzz but now the massive fan starts up as soon as I turn on the TV. Even if it has been off for a few days so it's very cool.

I'll see how I go and report back.

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I am so glad I got a 40w. Not only did I save some cash I also have the benefit of no fan to fail. Not to mention the lack of motion flow artefacts and a non distracting bezel. Keeping it simple is much better.

The 40W is ****! Shocking picture quality. The XBR series bezel is much nicer and modern compared to the w

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The 40W is ****! Shocking picture quality. The XBR series bezel is much nicer and modern compared to the w

Well i have to disagree with you there m8!, because my 40w is really great, no real problems to talk about, picture quality is really good, and i saved my self nearly a thousand dollar so i can now get some good blu-ray movies lol.

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The 40W is ****! Shocking picture quality. The XBR series bezel is much nicer and modern compared to the w

There is nothing wrong with the picture quality of a 40w.What side of the bed did you get of this morning sunshine. :rolleyes:

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There is nothing wrong with the picture quality of a 40w.What side of the bed did you get of this morning sunshine. :rolleyes:

Can you guys test something for me. I believe the buzzing noise is NOT the fan. When you power up the TV, listen closley to the top/back. Quickly hit mute and you will notice the buzzing sound. A few seconds later the fans WILL switch on, combing with the buzzing sound.

I bought mine in the GB too and was worried, but it seems that many people have this problem. My issue is not so much the noise, but that the buzing noise is a fault as it is SEPERATE from the FAN noise. Help appreciated

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To be honest, I thought that small buzzing sound was normal. I'd put my ear near the back of the TV and I'd hear a slight buzzing. I thought that is fine for a 46 inch screen, etc.

My concern was the fan. Like you said, 3-5 seconds after the TV is on, it just starts humming. This never happened before and I went into Sony Central today and went down the back (where it was quiet and the TV was on mute) to a 46 inch X series and put my ear to the back of it and I couldn't hear any buzzing of the fan.

Makes me wonder if these sets are now faulty because mine never had the fans running from the start and this 46 inch instore didn't have it.

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A couple of days ago the TV arrived at my house. Initially we put it in the lounge room but had to remove it because we were using a temporary stand which looked too ugly. During that time I didn't notice any fan noise. Then we moved it into my room which is a smaller and more confined space. Now after powering on the TV I can hear the fan but not always. I'm using one of those cheapy DSE Antennas in my room (yes I know what a f***ing piece of s**t it is) and in my lounge room we connected it directly into the plug in the wall. I noticed that (if the fan isn't already on) when I go to a channel where the signal is weak and the pic screws up the fans start to turn on. =\

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All,

I have an 46x3100. It is silent. I have mounted it on the wall. There must be a 60 mm gap behind it as well as larger gaps around it. The only thing I notice is the large amount of hot air blown out of the top.

The noise may be because what ever the set is sitting on is resonant to the fan frequency. Move it elsewhere as a trial. Also keep it off the floor or the dust will block the fan.

So since it is a new noise it may be that the dust is stopping the fan from turning.

Alanh

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I purchased a flat screen several years ago and I noticed a buzzing sound immediately after turning the unit on.

I had the unit swapped and found that it made the same noise only the new unit was louder (sometimes it's better the devil you know!).

Anyways....after a while I couldn't stand the noise so Iasked if they could change the power supply for me as I was convinced the buzzing was eminating from the power supply. They eventually came and took the unit away and when I got it back the problem was almost non existent. I could no longer hear it from all practical viewing distances.

Did they simply replace the power supply or did they do something else...? who knows, they never really tell you the truth about repairs.

The sound I was hearing was very similar to the sound the Xbox 360 makes when you are simply sitting in dashboard mode and like my 360 the sound began to oscilate up and down as I wore the unit in. It's one thing to hear a buz but another when that buzz increase and decreases both in volume and pitch.

So far I have read in this thread that the noise is not comming from the fans as they can be heard independantly to the buzzing sound. It also appears that those of you who purchased the 46 & 52 inch are hearing noises when the 40w is not. So I guess it could be power supply related.

Anyways, just my thoughts.

My dad has a 52" x so I'll check his out next time I'm over.

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The 52 x doesn;t have fans, so it would be silent, it is only the 40 and 46" which it can be heard on. can't wait till the tech comes out on tuesday to have a lot at mine, i bet he will say it is normal... but i will force him to take the fans out or upgrade the firmware which reduces the voltage omitted to the fan... i read else where that the fans make no difference so you can take them out/disconnect them... you agree?

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All,

I would not like to see these products run without fans. They generate a lot of heat which if not removed will rapidly reduce the life of the TV. The first thing which will happen is the electrolytic capacitors in the power supply will dry out giving all sorts of weird faults when they are bad enough.

AlanH

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Yeah I got that problem as well on my 46x. I just got the tv yesterday and as soon as i switched on, i could hear the sound. I didn't think it is a problem until now i've read ur post.

The buzzing sound is not that loud though, so i can't hear it when im 3m away. But it's clearly there if i stand behind the tv.

I've called Sony, they haven't heard anything about it before

I've called Harvey Norman, where i bought the tv, the Manager said it maybe because of running for the first time. He told me to turn on the tv for 8 hours straight and see if the noise gets louder. He would replace it if it's faulty.

This is A Reply to all of you with The Bravia X Series. I bought one of these back in October. I Noticed the Noise from Day 1. I was so pissed off. I rung sony after the 2 week return period with the shop. so they wouldnt replace it. It is bull that they said that they havnt heard about it before. because they said they heard of it 3 times previously. they by the time they transfered me to the warranty department they were quick to cover up what the call centre person about hearing it before. THERE IS DEFINATELY A PROBLEM WITH THIS TV. I have had it in at Digital domain in adelaide, they had it in repair for 2 months. They said they replaced the fans but they didnt. then they did a firmware upgrade. and changed the DF1 PWB(what ever that is). It has slightly reduced the noise but it is still loud enough to annoy me alot. i almost cant stand watching the TV. It makes me want to throw the remote at the screen. But anyway. I would love to hear anything about how anyone had this problem fixed. the fan noise starts up about 10-20 seconds after being switched on. then it jsut stays on. I will be ringing the repairer again tomorrow. then if they are no help i will be ringing sony again. I WOULD VERY HIGHLY NOT RECOMMEND NO ONE BUY THIS MODEL. IT SEEMS TO HAVE FAULTS.

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Everyone who Has this Problem with the X and XBR Bravia (as i Do) Should ring SONY. and complain so maybe they will do something about it. Also Do not recommend this TV to anyone else. I will be ringing SONY tomorrow. and seeing what they say, for the second time (they will probably say they havn't heard about it before(again) : has anyone had this problem completely Fixed?

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Everyone who Has this Problem with the X and XBR Bravia (as i Do) Should ring SONY. and complain so maybe they will do something about it. Also Do not recommend this TV to anyone else. I will be ringing SONY tomorrow. and seeing what they say, for the second time (they will probably say they havn't heard about it before(again) : has anyone had this problem completely Fixed?

Hey guys, I have the 46" X with NO buzzing at all... mine has a Manufactured Date of January 2008, I just muted the audio and went up close, I can just barely hear the fans working inside and absolutely nothing sitting 2meters away with no audio, whether they have sorted the issue, who knows... keep banging the drum and complain until it's fixed/replaced.

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I think the new batch of fans fix the issue, as the sony tech told me that they have redesigned the fans to make them silent.... But i will let you know, i don't know how long it will take for them to get the fans to replace it for me! But the tech also said that if enough people complain they may write a firmware upgrade like the one in the UK to resolve the issue!

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I think the new batch of fans fix the issue, as the sony tech told me that they have redesigned the fans to make them silent.... But i will let you know, i don't know how long it will take for them to get the fans to replace it for me! But the tech also said that if enough people complain they may write a firmware upgrade like the one in the UK to resolve the issue!

Sounds a bit weird that they have to redesign the fans and that they can fix the issue with a firmware update... if this was the case, I'd be concerned the firmware update would simply slow the fans down to stop noise which may be bad for cooling, I'd be demanding a replacement or hardware fix considering the newer ones appear to be trouble free.

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I got one of the new Batch of Sony's (swapped it for my Samsung F81) and am very happy with it so far. Doesn't make any noice what so ever and the picture is alot more clearer then that Samsung piece of crap I had.

Never buying a Samsung again.

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Hi

I also have the humming problem on my 40in Bravia as well. I only noticed it one night, about a week after I got the TV, when I sat close with the volume low. The sound is audible from a couple of meters away. As soon as I listen to the sound up close, I'm tuned in, and then I can hear it after that. The lounge room the TV is in, has an attached kitchen. I think the sound of the fridge can drown out the TV. The sound would be anyoying in a room where there is no other background mechanical noise. There are 2 sounds, 1 starts immediately the TV is turned on, and is a barely audible buzzing (not a problem) then about 10 seconds after the TV is turned on, a humming sound winds up. My TV is manufactured December 2007. The point is, 2 other people I work with have the exact same TV, one manufactured December 2007, and both don't have the humming problem. That makes this a fault in my book. I look forward to hearing about how the new fans work.

Thanks - ag.

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Im still waiting on an eta on the fans, my room has no background noise so it is very noticable... I know that if the door is open, you can barely hear the sound i guess it is due to there being more noise in the background. Anyhow i will let you know if the new fans make a different!!

I have the F81 as well and the sony PQ is much better!!! Also i think the TVs manufactured in Jan onwards do not have the noise!

Thanks

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