Onkyo subwoofer model skw-770 transformer spec

Oknkyo SKW-791 has build in amplifier. So it can be connected through Line Out Connector of sansui amplifier. If speakers out is connected with subwoofer, the circuit board in subwoofer will be blown.

The thumping sound might be originating from problems within internal parts, like capacitors or resistors, which could be contributing to the issue

Hi Kenny, sorry you can't. The TX=SR505 requires a powered subwoofer. The SKW-360 is passive. Thank you, Onkyo USA

Hello, To test the subwoofer when the blue light is on if you apply your thumb to the end of the subwoofer cable (the end that you would plug into the receiver) there should be feedback from the sub. If there is no feedback then the sub is not working correctly. Thanks, FJD

It would seem that a call or email to the mfr, should be your first move.
Are you certain that the transformer is at fault?
These normally outlive most everything else-

It's possible that you have accidentally switched off the sub-woofer outputs on the receivers. Onkyo have a speaker set up test. You should run that and see if the speakers are on and that a signal is getting through to them.

It is a grounding issue.

Buy a $0.99 ground lifter plug from Wal-Mart.

whatisthe codewriten behindtheoutput of the onkyo subwoofer skw 150my out put is bad in sucha way that ican not retrieve the the code

Check here to see if this is what you need.

http://www.fixya.com/support/p142531-onkyo_skw_50_speaker/manual-5086

Sounds like power problem of some sort ,have you read the instructions properly.some of these will have on/off switches in the wierdest of places