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**Reel Slots** Gaming Machines => SIGMA Reel Games => Topic started by: SmiggedySmack on April 13, 2019, 07:33:48 PM

Title: Sigma SG-50B Hot Sevens dead machine, need a buncha help, first one of these!
Post by: SmiggedySmack on April 13, 2019, 07:33:48 PM

Just bought a hot sevens slot.  Plugged it in and only lights are the florescent.  Messed with power supply and saw the 110 coming in but no voltages going out that I could tell.  I’m used to pinballx that have DC voltages so first thing is “does it run on dc or ac?  Messed with it some more and the fuse blew, then the little tower next to the fuse flashed.  Guessing I blew it up...  I would like to find a real manual for it, power supply, and some new boards if they’re available.  The main board has some hacks on it.  Can burn my own roms to and will if someone can point me to a site that has them for download.  Please help if ya can, got this thing cheap and wanna bulletproof it!
Thanks a bunch,
Chris
9044267022
Cclarkson0521@yahoo.com

Title: Re: Sigma SG-50B Hot Sevens dead machine, need a buncha help, first one of these!
Post by: SmiggedySmack on April 13, 2019, 07:43:50 PM

Forgot to mention, I want to buy the parts if you have them!!!!  Let me know if you have parts that will work in this machine.
Thanks again!

Title: Re: Sigma SG-50B Hot Sevens dead machine, need a buncha help, first one of these!
Post by: Badbaud on April 13, 2019, 10:01:40 PM

What is the PT version  number on the computer board.

Title: Re: Sigma SG-50B Hot Sevens dead machine, need a buncha help, first one of these!
Post by: SmiggedySmack on April 15, 2019, 04:46:08 PM

I won’t be here me for all this week, I’ll check when I. An and see what you can make of it.  Thanks!

Title: Re: Sigma SG-50B Hot Sevens dead machine, need a buncha help, first one of these!
Post by: wjpelka on April 18, 2019, 11:35:54 AM

I got a SG-50B  $.25 machine about 6 weeks ago. I have gone from completely dead machine to one that just needs to get the Dollar Bill Validater to work.I have found lots of info on line and would be happy to share. Just fixed the coin input problem by finding the sweet spot on the sensitivity pot on my CC-16 Coin comparison device.


My machine had a daughter board on the main board with a yellow wire coming off a chip on the motherboard and going to the connector on the daughter board. Pin was broken when the wire pulled out. Ordered parts to replace that chip and then I will have a spare for my machine. Found the board I needed on Ebay, ordered it, transferred the eproms and it fired right up. You might want to post some pictures of the internals of the machine. Also I have located a power supply that will produce all of the voltages we need.


wjpelka@hotmail.com


Bill

Title: Re: Sigma SG-50B Hot Sevens dead machine, need a buncha help, first one of these!
Post by: SmiggedySmack on April 20, 2019, 05:52:58 PM

Badbaud, the board says Mech-Slot PCB 340023 Rev A1.  I would like to buy one if you have it please, thanks!

Title: Re: Sigma SG-50B Hot Sevens dead machine, need a buncha help, first one of these!
Post by: Badbaud on April 20, 2019, 07:08:54 PM

I'll check at the shop Monday.

Title: Re: Sigma SG-50B Hot Sevens dead machine, need a buncha help, first one of these!
Post by: rich321 on June 03, 2019, 01:06:50 AM

Quote from: Badbaud on April 20, 2019, 07:08:54 PM

I'll check at the shop Monday.

I just picked up one of these as well.  Dead cap which I'll be replacing soon.  No idea on how to program it (assuming nothing else is broken).  Would you be able to share a manual?