Question about Onkyo TX-SR604 Receiver
I get a significant hum from the speakers when the receiver puts out a signal to the speakers. I have the receiver wired by HDMI cable from a satellite receiver to the Onkyo to an HD TV. The microphone autobalancing trys to eliminate the hum by setting the speaks in - db which doesn't work.
I suspect an open ground or bad cnnection in your hdmi cable to the amp from the sat.A hum is very indicative of that situation
Posted on Jan 09, 2008
Tips for a great answer:
Sep 10, 2013 | Audio & Video Receivers
Is the hum in the receiver-attached speakers or the sub?
How is the sub attached - RCA or speaker-level?
Disconnect the input(s) and see if it hums in the absence of an audio source. A bad audio cable shield or unwisely-routed audio cables will allow entrance of unwanted signals from external power sources, magnetic fields, even dimmer-controlled track lights. Sometimes, simply reversing the orientation of the ac power plug can eliminate humming.
If it hums with the sub attached, unplug the sub's power cord. Differences in AC ground potentials will generate hum across linked devices.
Mar 25, 2011 | Yamaha RX-Z9 Receiver
May 02, 2010 | Technics SA-AX540 Receiver
Mar 02, 2010 | Sony STR-DG520 Receiver
Jun 01, 2009 | Onkyo TX-SR606 Receiver
May 17, 2009 | Pioneer Audio & Video Receivers
Feb 17, 2009 | Onkyo TX-SR506 Receiver
Jul 06, 2008 | Onkyo TX-SR605 Receiver
329 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: