Didn't know either but somebody posted about it on Atari Museum on Facebook (I LOVE that page, even old Atari developers like Joe Decuir and Dan Kramer are there).
Just checked the Tournament Table manual and it has two TIA's two PIA/6532's and a 6507 !
A 2600 was 1 TIA, 1 PIA/6532 and 1 6507
Of course there was no cartridge so that's where the 3 (EP)ROMs are for
Anyway, this may make fixing it a bit easier.....hint hint......