Harmon Kardon AVR 225 buzzing ?! - AVS Forum
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post #1 of 7 Old 02-11-2013, 09:05 AM - Thread Starter
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Hi new here to the forums. I have an older HK AVR 225. It has this intermittent buzz when cold it buzzes pretty loud for awhile then goes away after awhile. Or sometimes comes back. I thought i read somewhere that its the video card or something like that and if you disconnect it the buzzing stops. Where is that located on this receiver? does anyone have a picture? i think its just a ribbon cable connected somewhere. thanks!

Todd
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post #2 of 7 Old 02-11-2013, 11:44 AM
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Quote:
Originally Posted by jazzgtrl4 View Post

Hi new here to the forums. I have an older HK AVR 225. It has this intermittent buzz when cold it buzzes pretty loud for awhile then goes away after awhile. Or sometimes comes back. I thought i read somewhere that its the video card or something like that and if you disconnect it the buzzing stops. Where is that located on this receiver? does anyone have a picture? i think its just a ribbon cable connected somewhere. thanks!

Todd

Clarify the condition..
Is the buzz coming through all speakers?
Is the buzz level controllable by the volume control?
Is it a mechanical type buzz/vibration?


Post back some your response and we will advise more later..

Just my $0.02... wink.gif
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post #3 of 7 Old 02-11-2013, 11:52 AM - Thread Starter
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HI thanks for the reply

Yes the buzz comes just through the front L and R speakers, that is all i have hooked up. Thats all i use it for, no video etc..

No the buzz just stays at one constant level. like bees, buzzing. no vibration..i guess once it warms up it goes away. thanks for your help
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post #4 of 7 Old 02-14-2013, 08:51 AM - Thread Starter
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any ideas? thanks
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post #5 of 7 Old 03-08-2013, 08:40 AM - Thread Starter
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post #6 of 7 Old 03-08-2013, 08:45 AM
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Sounds like a ground issue. Check speaker connections/polarity. Make sure reciever is properly grounded.

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post #7 of 7 Old 03-18-2013, 12:03 PM - Thread Starter
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Originally Posted by hakstone View Post

Sounds like a ground issue. Check speaker connections/polarity. Make sure reciever is properly grounded.

Hi did that not a ground as it goes away after awhile..still trying to figure this out, any ideas?
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