Sharing something i ran into and was able to resolve; might help someone else down the road; i couldn't find an answer for it searching thru the s2000 forum.
Anyway, I had cleared an S2000, keyed it, enabled the printer and did a few other setups; including doing a coinless mode "ENABLED" (bills only)..
So then when i start playing the slot, i can't put anything over 1.00 in the bill validator
AND anytime i won a couple bucks on a spin it would automatically kick out the amount to the printer; so i knew it had something to do with limits.
When you go into the limit setup though (that menu 3.1.4 via the white MPU reset button) it says that it's inaccessible because it's in Coinless Mode; so i couldn't change the limits or even see what they were set to.
Basically what i ended up doing is keying it again, turning coinless mode to "DISABLE". then swap the game chip back out and push the white MPU button to access menu 3.1.4 and was able to set the limits to 99999 or what you want.. Then i keyed it again, got into the key chip config menu and changed the coinless mode back to "ENABLED". Replaced the game chip, started it up; and voila it accepts 10's 20's etc.. now; and my higher wins don't automatically print out on the printer.