MS111 Micro Switch Conversion

[Unit504]

Well as most know ive been trying to get my ms111 coin mech to coin up in mame.
But it just was not to be!! As my mech died, so as i had some free time tonight i thought lets have a little tinker with some micro switches

All the aim of this for me is to be able to use a token (£1 coin) to credit up the games within mame,

giving the experience of inserting a coin

well after an hour or so, i cracked it...

ms111:

side panel removed and micro switch put in (had to dremel out a part of the side panel):

Side panel back on with earth and credit wire coming out:

Earth and credit wire upto the jpac:

Both wired in and setting adjusted with mame:

VT of the micro switched coin mech, crediting up:

http://www.youtube.com/watch?v=a-pv7Uobe1E

http://www.youtube.com/watch?v=h4kjlVZZGgU

will be wiring in the power for the coin lamp tomorrow.

 

[guddler]

Well as most know ive been trying to get my ms111 coin mech to coin up in mame

No, didn't know. What was the issue with just using the mech unmodified?

 

[Unit504]

Kk, I had been have issues getting the mech to work, as in one day it worked the next it didn't.
I checked over the wiring and how it was connected up all was fine.

http://www.ukvac.com/forum/forum_posts.asp?TID=329231&title=coin-mech-to-work-with-a-jpac

Tried again a week or so ago and the mech died, so I thought, all I want is it to credit up when a coin/token is inserted.
So ended up modifying the mech with a micro switch.

Well as most know ive been trying to get my ms111 coin mech to coin up in mame

No, didn't know. What was the issue with just using the mech unmodified?

Unit5042011-06-02 07:51:55

 

[guddler]

Ah, ok. Gotcha. Nice idea, I'd just never heard of anyone needing to turn a mars mech into a mechanical one before. If it works though then all well and good

 

[Unit504]

I know a little different, and as the mech was gonna be heading for the trash, I thought I'll just modify it.

Ah, ok. Gotcha. Nice idea, I'd just never heard of anyone needing to turn a mars mech into a mechanical one before. If it works though then all well and good

 

[DanP]

I think it's a good mod. I'd really like to get all my cabs mechs working, either with old 10p's or Tokens. Will do it one day...

 

[andyman]

Its good to be different

I've got 80% working on old 10p's, still needing to sort a few though and replace a couple of S10 quarter mechs. Thought about tokens but already have about £3 in 10p's and that was the way it was, so...

Andy.

 

[guddler]

I don't know how many people realise this but I have the kit to re calibrate and therefore change the coinage of some electronic Mars mechs. I can't remember which ones off the top of my head. The problem is, it involves burning a bi-polar prom and I don't have many of those spare.

The good news though is that if the mech is still on it's original coinage then the prom can be re-used (once only) as the mech only uses 4 out of the 8 bts of the prom. So you can just program up the other 4 bts and use them. Neat

 

[Equites]

I don't know how many people realise this but I have the kit to re calibrate and therefore change the coinage of some electronic Mars mechs. I can't remember which ones off the top of my head. The problem is, it involves burning a bi-polar prom and I don't have many of those spare.

The good news though is that if the mech is still on it's original coinage then the prom can be re-used (once only) as the mech only uses 4 out of the 8 bts of the prom. So you can just program up the other 4 bts and use them. Neat

How do you tell the mech to access the different bank? Dips?

 

[guddler]

From memory you lift a pin of the chip and snip it off - nothing technical