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Author Topic: IGT S+ Double Diamond Help  (Read 3767 times)
cevers
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« on: February 12, 2013, 01:23:21 AM »
I have a IGT S+ double diamond machine.  It has never worked since I have owned it so I am trying to reserect it.  I put a new battery in I have changed the bill validator form a DBV-45 to a DBV-200 and I did the ram clear and bill validator set on it.  I go through the steps and everything happens the way the directions read but that's where it ends.  I have a couple of different things happening form that point. at fisrt I was getting 3300 in the paid window and the bottom candle was flashing.  after fooling with it a little more the bottom of the candle is flashing and I am showing a 20 in the credit window and 80 in the paid window.  The machine will not accept coins or bills at this point.  I also noticed that U-18 slot on the board does not have a chip in it.  Is this intentionally left empty or is it missing?
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cevers
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« Reply #1 on: February 12, 2013, 01:41:22 PM »
I recently got an IGT S+ Double Diamond machine. On the CPU board in slot U-18 there is no eprom chip.  Is this slot intentionally left empty or am i missing a chip?  If it is indeed missing what chip do i need and where can i get one?
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Ron (r273)
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« Reply #2 on: February 12, 2013, 02:02:33 PM »
Mine have a 28 pin chip labeled SCN2681AC1N28 in U18 socket. I would
put that in the WTB section. I do not know what it is for.


Ron (r273)
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stayouttadabunker
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« Reply #3 on: February 12, 2013, 07:55:32 PM »
R273 is correct but I'd like to add something if I may?

I could be wrong but I noticed that only the MPU's dated before 1995 had that particular socket location marked as "U18" -
most MPU boards for the S+ later marked that 28-pin socket location as "U27".
Someone please feel free to correct this wild discovery if you see other...Thanks!  yes

Every S+ MPU board I've ever seen has the chip r273 mentioned above and
it is a "DUART" chip...haha! Hope somebody might be able explain what the "duart" chip does 'cause I have no idea!  arrow
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TZtech
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« Reply #4 on: February 12, 2013, 08:25:52 PM »
Only needed if You need SAS comms through the DCS port
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dhellis
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« Reply #5 on: February 12, 2013, 08:32:53 PM »
Quote from: stayouttadabunker on February 12, 2013, 07:55:32 PM
R273 is correct but I'd like to add something if I may?

I could be wrong but I noticed that only the MPU's dated before 1995 had that particular socket location marked as "U18" -
most MPU boards for the S+ later marked that 28-pin socket location as "U27".
Someone please feel free to correct this wild discovery if you see other...Thanks!  yes

Every S+ MPU board I've ever seen has the chip r273 mentioned above and
it is a "DUART" chip...haha! Hope somebody might be able explain what the "duart" chip does 'cause I have no idea!  arrow

A DUART chip is a dual Universal Asynchronous Receiver Transmitter. Older systems, including computers use a UART
which is essentially the Serial Port.
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coorslight115
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« Reply #6 on: February 12, 2013, 11:21:38 PM »
Not needed for home use, has no effect on game play. Do not waste your time or money trying to find one... wave
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cevers
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« Reply #7 on: February 13, 2013, 12:27:10 AM »
Thanks for all the help.  Fooled with the machine a little more tonight and up and running!
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Ron (r273)
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« Reply #8 on: February 13, 2013, 11:36:33 AM »
Quote from: coorslight115 on February 12, 2013, 11:21:38 PM
Not needed for home use, has no effect on game play. Do not waste your time or money trying to find one... wave

Good info! Thanks!

Ron (r273)
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