Problem with Onkyo TX-NR509

SOURCE: Onkyo TX-SR500 Dolby Digital problem

I just read over the problem you were having with your Onkyo TX-SR500 receiver. It sound like the unit needs to be setup for all five channels.Sence your symptom says the diplay shows Dolby D3/2.1. According to the owners manual with the remote control look for speaker setup whin the button is pressed the current speaker setup will be shown in the display. Press the preset/adjustment<> to change the current setting to five speakers. the listening mode will automatically change according to the number of channels you selected. Hope this helps. Radiotech

SOURCE: Onkyo Tx-SR55

did you swap the left from speaker with the left front?
if still crackels after that them you have bad left output.

SOURCE: I have an onkyo tx-sr606

hi there. try to check if your surround speakers are on the surround terminal. do not put them on the surround back terminal because this is only allotted for the 7.1 speakers. hope this helps.. ^_^

SOURCE: 2 month old ONKYO TX-SR706 speaker circuit problem

Make sure none of your speaker wires are touching. I had this problem. I re connected the wires. If a wire is touching the case it'll short out. It has a built in cut out.

I still have a crackling speaker on one channel but it doesn't cut out anymore.

steve

SOURCE: One speaker only works in Mono mode

I would be checking the set up mode , you might have it set to left or right channel only , but in mono mode both speakers will come on through one channel