IGT S - Need Help with Settings (SS112 RS3442) - 2 Coin Diamond

[slotmonkey]

I was able to enable coin to credit 1 / 0 (setup) on payout but when adding more then 2 coins the third just drops to the hopper without giving credit.   Almost like it it's set to lockout at 2 (2 coin game) but doesn't engage to lockout.  However I want the third credit when inserted to go to credit anyway. 


Anyone know the settings?


I know bad news it's an S and not even an S+, 1987 (Old stuff I know and I am doing a favor for someone) 


Only one chip labeled which is SS112 RS3442 (1992) 256 


thanks in advance


Pictures attached

[Ken]

Only two coins max bet on S (or S+) ...  then only two coins can be played ... credits accumulate via wins when credit to meter is set.

[rokgpsman]

Yeah, like Ken said, that's the way the standard S and S+ works. The machine won't accept any more coins in than what the max coin of the game is, which is indicated on the award (payoff) glass on the front of the machine. So for a 2 coin multiplier game you can only insert 1 or 2 coins. This is controlled by the software chip on the mpu board.

However, on an S+ machine you can replace the SP chip on the mpu board with what they call a "Montana credits" SP chip and then you can do what you are talking about. Extra coins inserted will add to the playing credits on the machine, up to a limit of maybe 99 credits (?). SP1137 is often used for this. But I don't think this can be done on an S model.

[knagl]

Agreed that you're not going to be able to have extra coins go to the credit meter. However, the machine should be rejecting the extra coins back to the player, not just "eating" them.

I'm not terribly familiar with S (non-plus) machines. Anyone know how the rake or coin diverter works in these games?

[slotmonkey]

Thanks for the comments, It has a regular coin mech installed like the one arcade games use, not a CC-16 or such.   It does have the coil and setup for the lockout.    I will check voltage to ensure it's not the actual coil being the issue since the default and only option is to reject he third coin which is not what is taking place right now.  When I was introduced to this lovely first generation "S" I had the pleasure of the common error 12 so I was not sure of the prior behavior.   After I fixed the error the third coin was going to hopper with no credit given or rejected and I knew this wasn't right.  Was not sure if it's a software thing with a setting or the diverter is not engaging. 

Door setup looks the same as an S+ including the harness

thanks again