IGT S+ Coin lockout coil power

**Reel Slots** Gaming Machines > IGT S and S-plus Reel Games

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Bruce G:
Hi Friends - I've run into an issue with an S+ that a friend gave me to get running for him. I just today noticed that the coin lock wasn't working at all. I check the coil and it's open. Then I tested the AC supply to the coin lockout coil, and it's always on. I connected a 28V lamp to the supply for the coil - so I could see if there was any flicker when coins pass the through the coin detector / comparer. Solid lamp all the time. I pulled the CPU back out to find Q16, Q17, Q18 all have low resistance across Input 1 and the gate. There are MAC3030 thyristors. Q 16: 39 Ohms, Q17 58 Ohms, Q 18 67 Ohms. None appear fully shorted, and testing thyristors has always been sort of a guessing game for me. I'm curious if anyone here has feedback on this issue. I didn't want to cut one off the board if it isn't necessary. These aren't expensive , so I can order some to see if new ones make any difference. But I was hopeful someone here would / could shed light before I go that route. Thanks!

Stayouttadabunker:
oh boy....terminology is a little off. :arrowthruhead:

Show us a picture of this "coin lock" please? :Take_a_Photo:
I have NO IDEA what you're referring to? :scratch-head_3: :scratch-head_2:
THAT is a new one to me. :rotfl:

Bruce G:
Coin lockout coil.

Tilt:
There isn't a coin lockout coil on a S+. Maybe you're referring to the coin diverter coil? That coil diverts the coin to the overflow tube when the hopper is full.

Bruce G:
Thank you Tilt. My mistake. Yes it's the diverter coil. Let me start over again.

This is a triple diamond form the 1990s, and it is an S+ machine. My friend bought it at a yard sale and asked me to fix it for him. I have 35 years experience servicing jukeboxes. I have been pressed into working on slots because there aren't any local repairmen left around here where I live. So please bear with my ignorance or lack of terminology regarding slots. I'm trying.

Anyhow. I replaced the battery, cleared the 61 code and the machine is working and paying out as it should. This machine has a single payout line. Max bet is 2 coins. if a 3rd coin is dropped, it passes directly into the hopper. There is no credit chime, since I'm guessing the extra ( 3rd ) coin should be sent out to the payout tray. I incorrectly thought the diverter solenoid did this. I see no apparatus in the coin path that would reject a 3rd coin. My suspicion is that the coin handling components were missing from the machine and that someone replaced them with the wrong components? There is a price of $50written on the frame that holds the the slug rejector - suggesting that it was purchased later and installed. I also see where perhaps a 2nd solenoid and cam could have been mounted next to the diverter solenoid. Maybe this is what is missing? I'm including a photo of the coin detector. It's different than the ones I'm used to seeing from these machines. It does not hold a coin captive in it, like the others I have seen.

Anyway - the thing works ok except for the extra coin thing. I'm inclined just to give it back to him as - is. I'm tired of looking at it. I am curious though, as to why the extra coins aren't being returned.

Thanks for your help.

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