Green component output to yellow composite on TV: no menu
S-video to TV S-video input: no menu (but input working because DVD player displays image using same wire)
yellow composite output to TV composite input: no menu (ditto for DVD player confirmation).

I don't know what to do next. Take a chance and reset everything? If it all goes back to default and I can't access the menu, I'm stuck with those settings, although I'm now using the wrong front speaker size and wrong crossover frequency since changing my front speakers.