Change payout percentage Sigma slot machine

[WineStream]

Hi all:

I'm new to this, so please forgive me if this is a no-brainer.  I have recently inherited a Sigma SG-50B slot machine and with a lot of help from this forum and some websites, I've managed to get it fully working!  However, I'd now like to set the odds to be as loose as possible as it's for enjoyment, not for winning money for "the house".  I have a manual from an SG-150B which seems to be pretty much identical to my SG-50B.  So far, it has not let me down.  I found a page in the Appendix of the manual which shows DIP switch settings for the payout percentages (attached).  I'm confused on two accounts: 1) how can multiple payout percentages have the same DIP settings (i.e. lines 5,6,7,8,13,14,15,16) all have settings of ON ON ON) ?!?! and 2) where is this bank of switches?  There's some on the board, but I'm afraid these are the settings for pay-in denomination or something else that I don't want to change.