Short answer, yes. I took a sampling of different ICs on the VDD pins and found voltage on them. Here are the samples
IC3301
Pin 3 and 125 - 1.23 Volts DC
IC3001
Pin 29 and 52 - 5.03 Volts DC
IC3002
Pin 8 - 5.02 Volts DC
IC3102
Pin 16 - 5.03 Volts DC
It seems like power is getting to all points of the board.
Moving on to another issue I was looking at some capacitors and had my multi-meter set to tone. I stuck minus on one leg and positive on the other leg and some had continuity (constant ringing from the multi-meter). I'm attaching an image to show the caps and which ones rang. I have a capacitor tester en route plus replacement capacitors if it comes to that. I identified these caps as C3733, C3732 and C3683. They are part number CEV010M50 on page 37 of the SP-99D service manual, but a google search doesn't yield much.
This is random, but with the unit on, I stuck the positive probe in the AC-3 IN RCA jack and read .80 Volts DC, don't know if that means anything.
At this point, I have the entire unit out of it's chassis, just loose boards laying on my work bench. It's the easiest way to work on it since I need access to both the top and bottom parts of the boards. I'm locked into this and really want to fix it.