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Aric
Aric, Technician
Category: Consumer Electronics
Satisfied Customers: 41953
Experience:  15+ years in the field. Owner of AV Installation, OEM and Repair company
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60 cycle hum in vsx 524-k receiver, Pioneer, model already

Customer Question

60 cycle hum in vsx 524-k receiver
JA: What's the make/model of your device? How old is it?
Customer: Pioneer, model already shown
JA: How long has this been going on? What troubleshooting have you tried?
Customer: 2 weeks, checked for shorted wires....none
JA: Anything else you want the electronics expert to know before I connect you?
Customer: does this receiver have a hum suppressor?
Submitted: 13 days ago.
Category: Consumer Electronics
Expert:  Aric replied 13 days ago.

Hello, 60 Hz hum is always caused by a ground loop or defective filter capacitors within the receiver. Capacitors filter out 60 hz hum generated FROM the receiver- but have nothing to do with the hum being generated elsewhere. Generally the cable box (if applicable) is what causes the hum due to the ground block on the outside of the house causing a "loop" (multiple ground points).

That said, without details nobody could tell you what the root cause of the hum is.

What's plugged into the receiver (cable box, TV, etc.)?

When did the problem occur?

Does the hum raise and lower with volume?

Is it there with ALL sources (try the FM tuner- does it still hum)?

Please elaborate and we can proceed.

Expert:  Aric replied 13 days ago.

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Expert:  Aric replied 13 days ago.

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