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SG-300 YAHTZEE slot

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drfreeze1739:
I just got a sigma  SG-300 YAHTZEE slot.

i have never worked on a sigma before..

so far it lights up and shows a 0 in winner payed..

when i turn it on the reels spin and reset. and thats about all it dose..

i have tryed to turning the reset key and it dose nothing..

i have replaced the battery,, i didnt have a coin battery like it had in it so i tryed a diffrent  one

and dose the same thing..

any help would be great on helping me..

attached is some pics of the machine.

Thank you.

Mark..

777sizzler:
I have one of these.  Had 5 of them and kept one that I have had for years.  I have some documentation around somewhere here and will help if I can.  Does your top dice spin and dot-matrix light up?.  Most of my problems derived from the mpu or a bad dice opto etc.  These are still fun games.  I have not turned mine on in about 6-months but it always fires up. 

drfreeze1739:
The dot matrixs dose not light up.

when i first turn it on the top dice spin then stop...

one of them keeps spinning and never stops..

777sizzler:
The one that keeps spinning has a opto/comm problem.  Look at closely and examine it.  These are fragile.  It has to see the dice (all) on boot up.  I May have a few spares that I kept for my game if this is the case.  I think a few other members here also have some of these or knowledge of them as well.  You will like this game when you get it going.  The game was ahead of it's time in my opinion and a collector peice as it was Michohn trying their hand at slots which was short-lived but actually a sigma machine!.

drfreeze1739:
ok.. thank you for your quick input..

if you can find any thing on it you have please let me know..

i will keep messing with it...

i will have to figure out how to take dice out and look at them...

any more input would be great..

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