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peterjong
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Sega console wiring diagram

Postby peterjong » Mon Jun 08, 2015 8:06 pm

Hello everybody,
Two weeks ago I bought an old slot machine.
I want to restore it to its original state. As you can see, the former owner(s) has changed quite a bit.
The question is: can somebody help me to find the wiring diagram for this machine?
Hope for a satisfying answer.
Greetings,
Peter de Jong
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treefrog
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Re: Sega console wire diagram

Postby treefrog » Mon Jun 08, 2015 9:33 pm

Welcome to the forum,

Well not seen one of these before, but I have seen one very similar, but of a 4 reel Hi Top which was on ebay about 4 years ago. Very similar inside to yours and also had the 1 to 5 player feature, which I am sure adds to all the electric gubbins in the machine. Probably came from the same factory,..

Not sure you will have luck with a wiring diagram, but who knows.

Mills Hi Top Quad Reel Console on Ebay
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dcbrown
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Re: Sega console wiring diagram

Postby dcbrown » Sat Apr 20, 2019 11:21 pm

Reviving an old thread but this is exactly the machine I'm struggling with. I bought a Sega Console. Condition was non-working working and locked with no keys. Was able to get the upper cabinet open, clear out some scattered coins and get it working for basic functions at least. After forcing some winning combinations, it didn't appear to pay out on the big jackpots, but I was able to empty the coin tube paying out small wins.

I eventually got the lower cabinet open and filled the coin tube from the back and tried it again. Now the machine showed " TILT" on the top box and I could pull the handle repeatedly, spinning the wheels without putting any coins in. It would no longer pay out even when forced to stop on a winning combinations. The machine stayed like this for a while as I tried a variety of things to fix it . Eventually it hit a big jackpot and actually paid out and that seemed to fix it for a few cycles. Now I could only pull the handle after putting in coins. But this only lasted for a couple of cycles, and now it is locked up. No response to dropping a coin, can't pull the handle and spin the wheels.

This machine has a lot of electro-mechanical features that I can't find any information about. Any advice?

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treefrog
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Location: Suffolk

Re: Sega console wiring diagram

Postby treefrog » Sun Apr 21, 2019 11:05 am

Welcome, I will not be able to help as never been near one of these machines....perhaps safe some pictures as to which machine you're referring to. Try to see if I had any diagrams of the Sega Console and found the below from their catalogue, but may not help much and may not be the same...
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dcbrown
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Re: Sega console wiring diagram

Postby dcbrown » Sun Apr 21, 2019 4:44 pm

Most of the more complex assemblies are labelled.
In addition to the bank of relays there is:

Multi Unit
Counter Unit
Cam Unit

The OPs pictures are identical to my machine. His first pic shows a good "floor plan" of the electro-mechanical systems. Clockwise from the back:

10-11 o'clock Multi Unit
1-2 o'clock. Cam Unit and transformer
5-7 o'clock. Bank of relays
8-9 o'clock Counter Unit

This is a multi player set-up. Payouts vary depending on the number of players. Mine is labelled as machine #5. Not sure if all machines would have been identical, or if one machine was the master. There is a place to set number of players, so I will try to change it to single player and see if that works.

dcbrown
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Re: Sega console wiring diagram

Postby dcbrown » Sun Apr 21, 2019 6:03 pm

Set it to single player and no change, but then manually activated the Hold relay and it accepted coins and allowed a complete cycle. Now it seems to be accepting coins. Not sure if the single player is the difference, or if the Hold relay just needed a nudge. Maybe a shorted coil that is weak but not completely useless???

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radiochrissie
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Re: Sega console wiring diagram

Postby radiochrissie » Sun Apr 21, 2019 8:18 pm

The relays in these machines can have you up the wall when fault finding. If the machine has been kept in a damp environment then you will need to check and repair each relay in turn. If you don’t do this then you will find that the faults change each time it runs.
Good luck.

dcbrown
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Joined: Sat Apr 20, 2019 6:50 pm

Re: Sega console wiring diagram

Postby dcbrown » Mon Apr 22, 2019 4:38 pm

Appreciate that advice radiochrissie. Will clean up the relays before getting in too deep on this.

Thanks treefrog for the diagrams. I'm not sure if this matches my machine. Could be the "Counting Unit".

Since things are working at the moment I'll be going through and take some notes on what normal operation seems to be. I'd like to put together a "functional diagram" at least. Since I'm a bit of a newby, any information from more experienced people on the forum would still be greatly appreciated. Are any of the subsystems used on other machines?

dcbrown
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Re: Sega console wiring diagram

Postby dcbrown » Tue Apr 23, 2019 2:07 pm

This is the "Multi Unit" that seems to be malfunctioning. As multiple coins are played it seems to c correctly advance from 1 to 2 to 3 players and the payouts are correctly multiplied according to the payout table. Doesn't reset to zero like I would expect though. If I keep inserting coins it will count back down to 0 and then be reset and playable.

The lower solenoid activates with each coin drop. Have never seen the solenoid on the right do anything, so maybe that's the problem? Any suggestions for a replacement coil?

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Sega Multi Unit

The Cam Unit. Not sure what its function is exactly. It's normally obscured by the cash box.

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Sega Cam Unit

Here's the main bank of relays. Conveniently labelled.
There is some "white rust" corrosion but everything seems to be working at the moment. I'll clean the contacts and give the steel parts a cosmetic cleaning.

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Bank of relays

The Counter Unit. Looks a lot like the Multi Unit but this one counts the coins when paying out.

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Sega Counter Unit

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radiochrissie
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Re: Sega console wiring diagram

Postby radiochrissie » Tue Apr 23, 2019 5:21 pm

Yes that coil and the bottom coil look fried, they have almost certainly gone shorted turns.
Disconnect each coil and replace with a 1k resistor, then check across said resistance to see what voltage, if any, is across them. Once you know this then it is possible to make your own coils. Unless someone on here has a better idea, this may be the only way forward.


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