Well, I seemed to have discovered a small "bummer" on my A1020. The S/PDIF Toslink optical digital audio monitor output does not output a digital audio signal in certain instances; specifically, the Phono Analog Input (for turntable) does not get converted to digital for output over this connection... at least, I haven't been able to figure out how to make this happen if it is possible.
I expected an A-to-D conversion on the connection, since the HDMI circuits seem to be able to upconvert any analog video signal, which is an advertized selling feature for this receiver. However, in the case of the Toslink Optical monitor, the little red light in the output jack actually goes out when switching from, say CD S/PDIF Digital Audio In, to Phono Analog In. The DSP circuits are on and processing the turntable sound, proving to me that the phono preamp analog input gets converted to digital at some stage, so why wouldn't the receiver output that digital audio over the Toslink Optical jack? This is disrupting my plan to digitize some of my LPs from the home theater in the living room to my PC in my home office via Toslink Optical cable. I wanted to have a single A-to-D conversion and utilize the A/D converter in the receiver rather than the one on my PC soundboard, which picks up all sorts of noise off the PC chassis (power supply, fans, etc.). Seems now I may have to spring for a separate Phono Preamp with an A/D built in, an expense I was hoping to avoid by choosing this receiver in the first place.