How can a S2000 MPU tell when it is in an upright cabinet or slant top?

[brianfink]

So I guess if you are getting a machine type mismatch then the machine dose know at least that it isn't the right type. The most obvious difference I can think of is that slant tops don't have a pull arm. Maybe try to clear and set to slant top with the pull arm unplugged or the whole inner I/O card. It has to be in the wiring harness I would think if all the other components are interchangeable. Or something to do with the door optics witch brings me to another question, Why is it that all of the newer(after 1999) game kings and I games don't have optics yet the slot machines do? And now that I think about it they don't ask if they are slant top or upright.  And of coarse game kings don't have pull arms. There is only a mechanical adjustment to the reels, to switch from upright to slant top on an s2000, so I don't think it would have anything to do with that.  Also maybe try going to error accounting.     

[foster]

The S2000 does its own adjustment of reel position depending on how the mpu is configured unlike the S+ which has different baskets for upright and slant top

You are correct that it is in the wiring harness, you cant remove the Cabinet I/O
Cabinet I/O is the interface between mpu and hopper, bell, physical meters, back light controller for slant top and upright and the handle for upright

I don't think an extra optic or switch would trigger the fact it is a different cabinet.
Think about the signal when the switch open or the optic are not aligned both would be logic 0.

It has to be a jumper that creates a logic 1 into the mpu at all times.

Guess I will study the MPU connectors for 50x boards it might give me a clue since I still do not see a slant top wiring diagram around.

[Retro tech repair]

The most obvious difference I can think of is that slant tops don't have a pull arm. Maybe try to clear and set to slant top with the pull arm unplugged or the whole inner I/O card.

as stated by foster the cabinet I/O card is needed for a lot of things you will get a few errors if its removed. as for the arm if its an normally open connection it card wont be able to see that its gone.

It has to be in the wiring harness I would think if all the other components are interchangeable. Or something to do with the door optics witch brings me to another question, Why is it that all of the newer(after 1999) game kings and I games don't have optics yet the slot machines do?

igt has done a lot of strange things in there machines. the desision to remove the door optics could be something as simple as cost. or they couldent get them to work reliably with that type of door. most of the i game chassis i have worked on the door shuts hard and i can see that being a problem for a glass optic.

And now that I think about it they don't ask if they are slant top or upright.  And of coarse game kings don't have pull arms. There is only a mechanical adjustment to the reels, to switch from upright to slant top on an s2000, so I don't think it would have anything to do with that.  Also maybe try going to error accounting.   

the s2000 has to adjust the stepper stops based on the change in angle of the mounting play on an igame you have a monitor so the machine doesn't care what angle its at.

my best bet would be it has to deal with the information saved on the motherboard eprom, or it can some how tell based on the changes done to the reel stops and the pulses that come out of the reel optics.

[brianfink]

By mechanical adjustment I was just referring to the reel lamps. I still don't quite understand why they even bother to put door optics on the s2000 and not the gameking. I never worked in a casino but I have heard people say that it's a big no no to remove them in the casino but it seems to be perfectly OK to leave them out on the gamekings. It also looks like gamekings have a spot for a watch dog battery but I have never seen one on a gameking board.   

[BiggerHammer]

I still don't quite understand why they even bother to put door optics on the s2000 and not the gameking. I never worked in a casino but I have heard people say that it's a big no no to remove them in the casino but it seems to be perfectly OK to leave them out on the gamekings. It also looks like gamekings have a spot for a watch dog battery but I have never seen one on a gameking board.

Maybe because there are no mechanical reels on a GK that can be tampered with or manipulated if the door is unlocked?? I don't know, just a thought.

[brianfink]

I was under the assumption that the reels where more or less just a peripheral device, to display what the MPU had generated, and manually moving the reels would just give you a tilt.

[foster]

Yes the Reels are positioned by the MPU and if you move them or something causes them to go too slow or stop before they are supposed to stop you will get a reel tilt.

[Retro tech repair]

may have accidentally figured this out yesterday. i was working on a machine with a 10 button deck and some of the buttons wont work. well trying to force an error i pulled the 10 button card and insted of getting the 10 button card missing error i was expecting i got a machine type mismatch. so i put the board back in and when the machine booted the error went away. inside the input tests for the door one of the button options was labeled something around 1 if upright 0 if slant. so my guess is its one of the jumpers on the bottom of the door io card sockets.

[foster]

I think you are correct and thanks.
I do not know why I didnt notice the jumper in the 7 button deck wiring diagram.
It's from Hold5 (IN4) to ground
And there are two additional jumpers in the 6 button wiring diagram that is part of a 10 button deck. I don't know how I missed them
for the following buttons Change, Cash Out, Spin Reels/Repeat Bet, Max Bet and the 2 switches tucked away on my deck See Pays/Help, Select Credit Value for multi-denom
They are from B0 to ground and B2 to ground

Now to figure out a non destructive test
I don't want to cut the jumpers or damage anything.

[Retro tech repair]

i wouldn't modify a working machine to test a curiosity but you can check in your input test menu one of the inputs is labeled.

[foster]

I just did a test
Power off
Pulled main door I/O card
Power on and wait for machine to boot

AND the result is "Machine Type Mismatch"

I suspect the 2 additional jumpers in the 6 button wiring that comes as part of the 10 button deck signal the machine to expect the 10 button portion of the deck.