A: HDMI from PS3 video-out to HDMI video-in on your TV.
You need HDMI to get FULL HD(1080p). Reg component RGB input on your TV will not support 1080p, only 1080i. Then connect PS3 with Yamaha with optical cable, it's only two optical inputs on YSP 1000 - Cable IN & AUX IN. And DVD IN is coaxel, same quality as an optical, but not availible on PS3, I think. So chouse one if Optical inputs. Set your TV to show HDMI Input and Yamaha on DVD or AUX and enjoy.
P. S. You may have to...