Browsing CL I came across someone selling an Onkyo NR717 cheap (as in $20 cheap). They say that it powers on and displays "Check SP Wire". I have been doing some research, but not found any solid solutions to the issue, some people just had a loose speaker wire, others never reported back what the problem was etc.
So, do I risk picking it up in hopes it is something simple? Or, is it likely not worth the potential headache of having a heavy doorstop?