IGT Black Jack s plus

[ersk3]

Here's some pictures of IGT Black Jack s plus, from 1990. It must be one of the first s plus mashines?

It's an intermediate model. Sp1168.

[CVslots]

The S+ began prior to 1990, I think it was 1987? Someone will no more of an exact date.

[mvco]

The oldest S-Plus I have seen was made in mid 1989.  I have often wondered when IGT officially rolled out the S-Plus line.  I have some old model S games, some made as late as 10-1988.  I wonder if 1989 was the year of release?

[ersk3]

I found this note from 1989 inside tre mashine

[Yoeddy1]

My first machine was a Jackpot Jungle that looked exactly like that.  The crew out here years ago told me that it was an S.  If you put up a video of it playing, I could tell you if it was an S or S+ based on the spin sounds.   S was a little more lethargic sounding compared to the S+ spin sounds.  I'm betting yours is an S as well.

Thanks,
Jason

[Yoeddy1]

Here's what I mean about the spin sound comparison between an S and an S+:

Look at the button style and listen to the lethargic reel spin sounds of the S...also the "Insert Coin" style to the right of the denom legend is different:

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Here is an S+...notice the different buttons and traditional sounding S+ reel spin sounds:

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Maybe others can chime in with their experience, but this was what I was told back in the day...

Thanks,
Jason

[knagl]

The bottom one you posted, Jason, is a newer style S+ cabinet (notice the "Good Luck!") in the 4th reel window, which would typically have the "insert bills below" arrow if there was an embedded bill validator).  There were indeed early S+ machines that used the older style buttons like in the top video and also like ersk3's machine.

From my understanding, the main difference between an "S" and an S+ is in the MPU board.  The MPU board on an S used wire harnesses that had to be plugged and unplugged by hand to remove the board, while the S+ design used the fixed motherboard in the bottom of the machine with the connector that the S+ MPU board would just plug directly into.  No need to plug in wire harnesses by hand -- just remove and insert the board, with the power off of course, and it would be disconnected or connected.

ersk3, can you post a picture of the inside of your machine where the MPU (processor) board is?

[ersk3]

Here's some more pictures from the machine. The mpu board is plugged directly into the motherboard.

[ersk3]

It looks just the same as my 1992 intermediate double diamond machine. The game sycle and sound is the same as in the first video posted on both machines.

[rickhunter]

That's an early S+, the mpu board is a give away, plus the fact that it uses an SP chip.  The "S" had the reel and sp chip into one.