We just hooked up our HT SR800 and we are getting a buzzing noise, not unlike that of a Flurescent light transformer.
It is quiet when powered up, but after approximately two minutes, the buzzing begins, and reaches maximum buzzing volume at about 5 minutes, then tapers off and goes away between 15 and 20- minutes and does not return until we power down and re-initiate the system.
Is this a faulty component? or is there something we can try?
any assistance would be appreciated!
The hum a fluorescent light makes is the 50 or 60 Hz hum of the alternating current mains supply. Inside the light fitting is a choke which when less than perfect tends to hum. When the choke is loose internally or externally is when the hum becomes an annoying buzz.
When an audio system has a similar tone of buzzing or humming the source will invariably be the same AC mains but how it got in there is difficult to answer...
It could possibly be poor smoothing and regulation of the power supply or an accidental hum loop caused by careless design and/or poor grounding. It could be caused by being induced in the input by connecting leads that are too long and poorly positioned/screened or it could be caused by mismatch between different components causing a poor signal-to-noise-ratio.
I am not sure why it should come and go but the fact it does would indicate a power supply problem more than the other possible causes.
If the Onkyo system has it's own volume control and it is being used witha tv or similar, it is worth trying to imporove things by turning up the tv volume to near maximum and then controlling the volume with the system control.
SOURCE: Onkyo HT-SR800 won't turn on
If you call Onkyo directly, 201-785-2600, there is a procedure to "reset" the system, something like holding the power button on and holding down another button for a few seconds. Can't remember which, so I can't be sure, but try giving them a call.
SOURCE: I need schematics to the subwoofer in this system
Check here to see if this is what you need.
http://www.fixya.com/support/p142531-onkyo_skw_50_speaker/manual-5086
SOURCE: Remote control failure with Onkyo HT-SR800
If you have several audio/video devices, which is probably the case if you have this system, you might consider buying a Logitech Harmony All in One remote.
I got one as a present - it now controls all my devices intelligently and is fully programmable to switch all boxes to the correct settings for a particular activity with one button. It connects to a pc with a simple but sophisticated GUI to set up, and codes for hundreds of devices are available and automatically downloaded.
Brilliant, and my wife can now use our systems without having to ask me what to do! It even has an on screen help function.
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I have the same system and the subwoofer will just turn on by itself and start buzzing.
I have the same problem, except it is present on start-up.
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