Question about Harman Kardon AVR 500 Receiver
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Posted on Jan 02, 2017
This is a good indication that the surround processing section has a problem. This can be anything from a supply voltage being missing to a defective processing IC. Without testing inside the unit, it wil be difficult to determine. With surround procesing turned off, the entire section is bypassed. This is why standard stereo mode sounds OK. The static sound is digital noise and can be poor processing or a bad D/A converter IC.
Hope this helps,
Posted on Feb 26, 2010
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