I have the machine working to the point of taking coins, registering the coin, spinning the wheels.  The machine will not payout, but seems to give extra free spins.

The bell does not sound and hopper does not spin.  I confirmed the payout relay does work by jumping the relay from a hot wire.  I have made a color version of the wiring.  I can find where most of the items are in the schematic, but where are the wheel mechs?  I see an A, B, C, and D, but there are only 3 reels.

It must be something between the Grey/yellow wire and the yellow wire, correct?

I have a GameKing with the 044 board.  I use the 28 Key Chip.

GK002324 (Not sure what chipset)
GKB00025 (Boot Chip)- Ordered the GKBDEV39 to replace both the 25 Boot and the 28 Key

If I need to post Pics, Ill have to take some with the IPAD so they are less then 1MB each

My Question.  I go into the setup, then games, and most of the Poker Games have 95% at the lowest.  I was hoping for around 89 - 90 %.

Is there anyway to change these tables, besides selecting out of the 5 or 6 percentages that are listed?  I have them setup for Quarters right now, but it seemed the available percentages were the same for each denomination.

Thanks for the help.  I do know there are 66 games available with only 1 Black Jack.  It does have the Cleopatra slot

If you have a Konami Advantage+ then this would be the right card-

https://www.ebay.com/itm/254490116044?itmmeta=01HZBEFG6WT8BBA52Q6CR7E901&hash=item3b40caffcc:g:8PoAAOSwOPZdbzIW&itmprp=enc%3AAQAJAAAA4GxF2wkjQ2nzqf9SRBfjRKGFXG85c8OaEH8RgTrlizd6m2bDodEKrklPBfriTEwEfPAo8U8JyyE7IzaCsDDC%2B5QVP1BJDmuyrYF0357aJYD6VbGc30KN%2FBueFI2gC%2BSvtKx7aNOaGyisHRbi8cDU4R0uAAFddmd4R7QV4IzgZshYqhg%2BifrD%2B90HGLb5XwMlb%2F7fYK3MJ%2BTFPvvhXHJ6Zp73mTXTpgfVDeAs9FSiMIk5VB8xJSGxRt5QcjBMWUVr3WZa9E5ZGkPthAonJ4HNOOrGnfS7Spdav9IjHtKFQT%2BK%7Ctkp%3ABk9SR8KDvu76Yw

Please post some pictures of your machine. Without pics its hard to know what you have.

Hello everyone, I'm not sure how this slot machines electronics are supposed to work? It leaves me with a lot of questions that I need help answering.
Hoping the community might have the answers or solutions. I an very much a electronics tinkerer and DIY enthusiast.

So I have what I think is a "Harvey's Wagon Wheel 5 Cent Slot Machine". I'm unsure of the year but is very much an antique. This was given to my Grandmother in the 1950s (because it was too old) from the Golden Nugget in Las Vegas. As she was a Dealer there.

I do understand that the main operation of this machine is mechanical and not electrical but I'm unsure how just the basic lights and sound is supposed to turn on or work on this things. It seems to be missing the power cord, and maybe a small PCB board to regulate the power? Although I'm not sure if this is too old for a PCB board and such?

Following the main grey cord from the slot machine, one half connects to a dark blue wire that terminates to the Jackpot buzzer and Light. And the other half connects to a brown wire that then splits two ways. One goes to a black cord (slightly thicker gauge). Might be the original power cord but cut? The other side goes to another brown wire that terminates to the lights in the front of the slot (displaying the win orientation). My attachment upload size is only 1MB so I cant really upload the photos I took.