Question about Pioneer VSX-819H-K A/V Receiver
Posted by Anonymous on
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Posted on Jan 02, 2017
The hum you hear from the speakers and from the unit itself originate with 60hz AC power. They may not actually be related. Sometimes a transformer will hum slightly and unnoticeably. That you're getting a loud speaker hum says there is an electrical leak or a grounding issue somewhere.
Do all sources produce the hum or, say, just the phono? How about on headphones? Try rotating the AC plug. In those days they weren't keyed with one large blade as they are now.
Posted on May 17, 2009
I had a similar problem when my Plazma TV + DVD Player + Receiver all interconnected. Some time later, I realized that the hum was leaking from CATV connecton to my TV antenna input which was indirectly reaching to my Pioneer receiver. When I disconnected the CATV cable, the sound was perfectly clean.
I guess mains power was interfering to CATV signal somewhere.
I.Kostak from Turkey.
Posted on Mar 20, 2010
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