How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Aric Your Own Question
Aric, Technician
Category: Consumer Electronics
Satisfied Customers: 44914
Experience:  15+ years in the field. Owner of AV Installation, OEM and Repair company
Type Your Consumer Electronics Question Here...
Aric is online now
A new question is answered every 9 seconds

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: 10 months ago.
Category: Consumer Electronics
Expert:  Aric replied 10 months 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 10 months ago.

I'm not sure if you're having problems replying? Please don't try to reply to the e-mail the site sends you. Instead use the link to get to the site page and reply here.

Expert:  Aric replied 10 months ago.

If you need further assistance let me know. Before you go, PLEASE DO click at least a 3 STAR RATING, at the top of your screen (scroll up the page to get to the STARS). That is how I am credited for my efforts by the site. You can follow up any time as needed at no additional cost.