Question about Harman Kardon HK 3480 Receiver
Is the buzzing coming over the speakers or just from the receiver itself?
If over the speakers:
Try swapping ports on the receiver from the DVD. Go from DVD into an auxiliary video or VCR 2 if available.
Try swapping out the cables with known good ones.
But do this in steps to be able to nail down the problem and not just leave a mystery.
If the sound is solely coming from the receiver it could be a dusty fan. Blow it out with compressed air ,With the Power Off.
Or, my favorite, might just have to crank it up so you can't hear the buzzing.
Posted on Mar 11, 2008
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Posted on Jan 02, 2017
Tips for a great answer:
Jan 16, 2015 | Harmon Kardon Harman Kardon Harman/kardon...
Jul 07, 2011 | Technics SA-EX900 Receiver
There is a good chance that a common control may have developed a high-resistance or 'dead' spot through idleness and is causing your symptom. Turn the POWER OFF and operate every control throughout its range a number of times, especially rarely-used ones like Tape Monitors and the Mute control.
Turn the volume to something reasonable and see if that helped.
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