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Old 26th February 2008, 03:29 AM   #1
gychang is offline gychang  United States
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Default hum on Harmon Kardon HK3270 receiver

I bought a used 2 channel receiver, but it has a hum when I turn on the volume high. The unit sounds very clear otherwise. Some owners have noticed the problem.

Anyone have any suggestions on how to minimize the hum?, what are the basic things?

I will try to move the receiver away from the other components and will try the different wall outlet.

thanks,

gychang
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Old 11th March 2008, 11:29 PM   #2
gychang is offline gychang  United States
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Default help, hum is driving me nuts...

help please.

gychang
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Old 12th March 2008, 08:32 AM   #3
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One channel, or both. If it is in both, it's likely a power supply issue. Weak caps, dying pass transistor, bad solder joint...
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Old 12th March 2008, 11:10 AM   #4
gychang is offline gychang  United States
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Quote:
Originally posted by EchoWars
One channel, or both. If it is in both, it's likely a power supply issue. Weak caps, dying pass transistor, bad solder joint...

it is on both channels, louder as the volume turns up.

gychang
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