Backlight Buzz in mid-ranges? Have any other owners noticed this?
1962632
We've had the ld350 for a couple weeks and it does the same thing. It makes an annoying buzz when we turn the backlight down lower than 75-80. Other than that we are liking the tv and hate the thought of having to return it, but this is very irritating with the sound low at night in the bedroom. Also, afraid it may get worse.
321568
I love the light, but yes, I do occasionally get a buzzing sound. Not sure if it's the dimmer switch or not however.
704327
No buzzing sound and YES the brightness is adjustable. Click the icon in the system tray and select the monitor E1659Fwu, then select settings. An on screen display will have a contrast and brightness setting.
652475
In my original review I pointed out that these flicker when dimmed, could also be associated with buzzing since the load is on and off. Mine are still going strong after considerable use, however, I rarely dim since the flickering is irritating.
662374
I have these throughout my home as well as tabletop dimmers. I don't hear buzzing from the dimmers themselves but from the dimmed lights, which is normal. The more you dim the more likely you are to hear a buzz from the light, especially if the full wattage is high and you have it dimmed low. This isn't harmful and in fact significantly lengthens the life of incandescent bulbs.
1650077
I just got delivery on my PN50B860 and no buzzing. My guess is that given all the negative publicity that it is fixed. No problems and the flat panel is awesome! Try contacting Samsung technical service to confirm as they should be able to inform you if the issue has been resolved.According to a Samsung customer, (http://reviews.us.samsung.com/7463/PN50B860Y2FXZA/pn50b860-50-1080p-plasma-hdtv-reviews/reviews.htm) the buzz issue cured and there is a tech repair sheet out from Samsung to fix it so the newer TV's should be fine.
968707
For what it's worth, I just got the 605 model and there is no buzzing on mine. I think, like most issues with items, it effects a small minority. But of course when you spend $1,000+ if there is an issue you tend to be very vocal about it, which I understand.
1683524
I have the 73" version of this TV that I received last week, and the first thing I noticed is how silent it is. I don't hear any fan noise (or other) unless the room is dead silent and I go put my ear up to the back of the set... and I can hear just about every noise there is. My Plasma TV on the other hand has always drove me nuts with the notorious Plasma buzzing sound. I love the viewing angles, inky blacks, and smooth, even back-lighting of my Plasma, but I am ready to give that up for the size and silence that the Mitsubishi provides. You may want to get your TV checked by a technician if it's still under warranty.
1508799
No. Mine does not seem to have a backlight on the display in any mode or range selection I could try.
704329
so... not adjustable brightness yes.... but i dont hear any buzzing noise on screen. It may depend on the laptop you use it with.
2130052
YES they BUZZ. It may be a little hit or miss, but it seems most of these TVs buzz. I had three from Amazon and they all buzzed to varying degrees, plus some other issues. One more from Crutchfield and the buzz is the worst yet. I have given up on this model and am thinking of the PN50B650 (as soon as amazon brings the price back down - these yo-yo prices are annoying, may just head to best buy in the end !).
952450
this is a ballast/inverter problem related to florescent backlight, period. you can either replace entire LCD unit or exchange for another model/brand or same model and hope the next set is better--not all will do it.
1368026
I'm having the same problem...I think that the brightness change with power demands...I don't know.
952451
I have a 55" led and had this buzzing that would only happen at night. A flood light was on the same circuit in my house and when it would turn on I would get the buzz. When I turned it off the buzz is completely gone.
1614714
I'm not sure about the buzz, but my hearing's not that great either. The green light going out seems to be normal. Both of my traps do that but rest assured they still zap the mice. I think the light briefly lets you know it's ready then shuts off to save the batteries.
1021693
I also get a slight buzzing. My understanding is that this is common with most LED lighting when they are put on dimmers
823520
All of these mini florescent bulbs have small ballasts in the base that control the lighting. They can and often do make a buzzing noise. I have 20 of the 45W lamps and only a few buzz slightly after warming up. I usually have music on when I use them, so it's not noticable for me. If the buzzing is really loud to you, then you might have received a defective batch, in which case I would contact the manufacturer.