After hooking up my new receiver I notice an audible humming noise from it when it's in Standby. It's not loud, but it concerns me. Is it normal?
1003627
Thanks very much to those who offered suggestions. Everything was fine with the wiring. A phone call to a Sony tech resolved the problem, which was found to be my selection of HDMI Passthrough to "ON". As such, the receiver remained partially powered in Standby and resulted in the hum. Re-selecting HDMI Passthrough to "OFF" cured the problem.
1003628
No, It's not normal. It's probably 60 (Hz) hum. Try reversing you AC plug, that should fix the problem 90% of the time. If that doesn't work try grounding the case.
1003629
I also have the noise coming from the unit. HDMI Passthrough is "ON". Looks like it is a "feature" of a cheap transformer that is installed inside the unit...
1003630
that is not normal. make sure all your connections, especially the speaker hookups, are done well with no shorts.
1003631
No that is not normal. Check each connection one at a time to make sure they go to the right places. Also, is a really long cable or something with a lot of electrical noise nearby? Noise sources include your neighbors. You might need ferrite beads on your wires if you are near a noise source such as a radio station, arc welder, LED lights, CFL lights, etc. These source can (they do not have to) misbehave and cause noise, often through the power cord. MFJ Enterprises (and others) have tools to track down noise sources.
1003632
Can't say tat it's normal mylunit doesn't do it u can contact sony for anser they have a good support on line good luck!
1695892
You know I had to go and check! However, I have an 828LM and no hum whatsoever. Have you unplugged (the replugged) the unit and tested it away from other equipment for this humming noise?
561532
No, I have not had that problem. The only problem is an occasional hum in the speakers.
397108
Is it a ground hum? Because if the speaker has a hum, there is nothing wrong with the speaker itself.
594617
I had the same problem. There was some speculation that it was due to overheating. Because of this and another problem I had with this receiver, I returned it and got a Pioneer unit that I am much happier with.
74268
thanks. i did read your review but was also still seeing reviews posted later than your still mentioning the problem. i'm probably buying either or this week so i'll ask to see the back of the reciever and look for the S. thank you thang.
1269493
The hum might be due to a ground loop. This problem often happens when you interconnect devices via RF/audio/video/etc. cable that are plugged into electrical circuits with different grounds. To troubleshoot this, try disconnecting FM antenna, input and/or output cables from your receiver. Assuming that you have any kind of cable connecting the TV to the receiver, also try removing the RF cable from the TV. Cable TV hookups are reputed to be common causes for ground loops. If the hum goes away with a particular cable removed, search online for a ground loop eliminator device for that type of connection. An inexpensive audio ground loop eliminator is available at RadioShack stores; higher-end audio ground loop eliminators are available online. Cable TV ground loop eliminators are available from online sources. For further information, search the Web for the words "ground loop". Hope this helps! Dave
1738658
No, Do check everything others have mentioned. Also make sure your receiver is correctly configured. Run a sound test to help pinpoint your issue.
2061604
There is a slight white noise when the amp is turned all the way up. I compared it against just having my phone plugged in directly to the amp and this receiver was a bit louder than that white noise, but not much. It could be related to the cheap USB power I purchased to power this device - it comes with a USB cable, but no wall adapter.
2117732
I do not actually have this receiver. but, now that that is out of the way, thought i still might be able to help. generally, the protection circuitry shuts the unit down when there is a problem with speaker wiring, like a short or miswire, that's what i would check first, another possibility is you have a damaged cable, like the hdmi is messed up internally, try swapping in a different cable after you check the speaker wires. hope this helps!
1414602
I just recieved the TV and after connecting it, I immediately noticed a high pitched back ground noise that is always present. It varies in pitch and modulation and seems louder on digital channels than analog channels but it is very evident on both. Is there any adjustments to be made or should I just return it?
949532
I am getting the same thing. It is a buzzing/loud humming noise. Anybody know if this is a defect or if something else can be creating this?
1948218
Call Onkyo customer service. I had the same issue and they took care of the problem. My receiver was repaired and shipped back to me in about a week. I was very impressed. Hope you have the same experience.
95291
If you're 100% sure it's not the source, then yes. I don't have hum unless I am on high volume but I have had a lot of source hum from my sound card. So check that out before shipping it off.
1824693
I found that making sure there was no interference from any other electronics nearby helped. Just experiment with moving the unit, the input cable, and the source of your sound (whatever you're broadcasting) around until you find the sweet spot. I've got virtually no hum now, but occasionally I'll hear some and invariably find that someone has moved one of the elements around. Once I put it back where it belongs, no more hum.
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.
1716234
Turned mine up to 55 which is about as loud as I can stand it, but heard no buzzing - even during an interlude. Have had no issues with the receiver.