Here are the Sega/Gremlin G80 boards I am trying to identify...

Part Number	834-0041
PCB Number	171-0003
Sega marked chips	8025 E37 8004 E20 8010 E31
So far this board has been identified as a Space Odyssey sound board. Can anyone confirm or deny this ?
IC39 has been removed, can someone identify which chip belongs here ?
If you can identify this board, e-mail me at vector@hawkmountain.net

Board Name	Assy Back Scene Hardware 1
Part Number (sticker)	834-0027
Part Number (screened)	834-0028
From a net search, this board I believe is also for Space Odyssey. Can anyone confirm this ? Also, I believe it is supposed to be populated with EPROMs, can someone confirm these sockets are supposed to be populated ?
U61 and U62 have been removed, can someone identify which chips belongs there ?
If you can identify this board, e-mail me at vector@hawkmountain.net

Board Name	Video 1 Board
Part Number	800-0106
PCB Number	170-0193F
Sega marked chips	316-0806 315-0042
From a net search, this board is for Astro Blaster. I believe this was also used for other games, but I can not confirm this. Can anyone tell me what game(s) used this board ? I have two of them, on one someone has a paper tag that says "Astro Fighter". Considering the number of Space Odyssey boards I seem to have, I wonder if this could have come from a Space Odyssey.
If you can identify this board, e-mail me at vector@hawkmountain.net

Board Name	G-80 2716 Prom Bd
Part Number	800-0151
PCB Number	170-0211A
EPROM Numbers	888 through 906
I'm pretty confident from net searches that this board is a Space Odyssey Prom Board.
If you can identify this board, e-mail me at vector@hawkmountain.net
Board not pictured