AC adapter whines/buzzes: Anyone else notice this?
1131573
My charger also made a high-pitched whine, but had none of the other problems. After about 6 months the charger broke entirely and I had to pay Panasonic $25 (with shipping) for a new one since it wasn't covered under warranty...
1189758
it has a loud hum . I grounded the units directly to the Case of the Computer. It reduced the hum significantly. I replaced both units just last week because these are pretty much junk in my opinion.
65011
I've never heard any buzzing or "electrical noise". There's normal fan noise on the higher settings. It's virtually inaudible on the lower two settings.
1839748
Yes - mine squeals (ordered October 2014), I'm pretty sure it's an inductor or similar on the inside. Only occurs when a device is plugged in (so when the DC/DC inside is actually under load).
1688167
Yes I have the same hissing sound on my unit too. Not too excited about it either. I am from Canada, and shipping it back and forth to the USA will be too much of a hassle and too expensive to do, so I'll just keep it as is. :-(
208944
Ours makes a small cyclic hum. You can hear it. It doesn't bother me, but everyone has different tolerances.
818351
I have a slight buzz from mine's as well, really noticeable when the volume is on a lower lever (anything below 15). From what I have read, this is fairly normal since a lot of energy is used to heat the plasma. Also, since I'm only about 7 feet away from my set, that might be part of the reason why I notice it. Did the samsung tech support cost a lot to come out to install the insulating material?
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.
769810
Try unplugging the AC power plug, spin the plug 180 degrees, and plug it back in. Occasionally a buzz can be created when the power is "out of phase" with something else plugged into the AC circuit.
2222571
No, not normal - Have you checked your wiring, ground, etc? Are the green and blue lights glowing properly? I have two of the surge protectors- One since 2003 and there is no hum... I would return it.... Monster Cable will not honor a warranty by a seller they do not certify. Amazon is certified, but most of the merchants selling the product at a cheaper price are not.
502167
Hello, I've used this adapter quite often and have never had a problem. I never noticed the notice!
1268845
I hear it also. It doesn't happen as often for me. It's probably just some coil whine and should be fine.
1906910
Yep--I have two, and they make buzzing noises. I recently rearranged my furniture, so it might just be that I'm sitting closer to the cat beds and noticing the noise now. At any rate, they for sure buzz now.
467862
Once in awhile when I power mine up, I get a "rushing" noise that requires it to be powered down and powered back up again. Not sure what that is. It's not interference from my home wireless network. Mildly annoying.
1319436
You have a ground loop somewhere. These can be hard to find and fix. I would do some reading on it. Musicians are often very familiar with this problem. Often times it's as simple as making sure that the two devices sharing the circuit (for example, in an audio circuit like this, the computer generating the audio signal and the speakers outputting it) are on the same AC outlet -- often times plugging into different AC outlets can introduce a ground loop. I've had some luck with ground loop isolators and filters. Amazon sells a number of these. You'd want one that's targeted toward your specific cable type. I've also had some success upgrading my audio cables. In one particularly annoying case I finally isolated the problem to a specific AC/DC adapter. When I replaced that with an equivalent, the problem went away. Diagnosis can be tedious. For that last one, I repeatedly unplugged everything then started connecting things one at a time until I found the pattern where the AC/DC adapter was the offender. I had another one that turned out to be a coax cable TV cable -- I have a TV as one of my sources on this device. A coax ground isolator at the cable source took the problem away immediately (I was surprised at how easy that one was). In addition to the specific isolators/filters you plug cords into, you can also get small suppression devices (RF suppression) that snap on the existing cords. I haven't had much luck with those for my specific problems. When you buy a cable with those cylindrical bulges at the ends, that's often the same sort of thing built into the cord.
573950
no there's no buzzing. Have you tried installing the latest drivers from amd.comReally strange!!!
210388
The units lights are a big part of the problem, turn the lights off and the " whine " goes away. As far as " white noise ", rack mount it, grounding it, then using a power line conditioner w " quality " preferably gold plated cables for the optimum sound. Shouldnt need all this, but unless your outside, your gonna want at the very least a power line conditioner with quality cables. Ive reduced the noise you speak of by a good 75%, if not 80%. Good luck :)