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Hi, thanks for that. I have noticed on a few of Bobs posts and mainly the MPU2`s that they are missing as well but the differnce being there is no solder on the holes at all so maybe it is a modification they made to the boards at some point, not knowing the history of the machine and lack of information in general leaves you guessing a bit. I have i think worked some out from enlarging some photos on posts but they are blured and confirmation would be good. So i think :- R1=100K R2=1M R3=100K R4=47K Diodes i assume are the same as the other signal diodes in the area (not zd). C1 is a tant of some value T1 i am sure i could work out but easier to ask.

I've just looked at an MPU1 that I have here and the components in the red area on your photo are present on my board. I'll get the values for them and let you know.

Good morning A frend of mine is selling his old 6800 emulator, just putting it here incase someone wants to make an offer. He used it to create bingo machines back in the day. eBay link below https://ebay.us/m/A3hlyj

Thanks for your input everyone. I bent the cradle in slightly, and it worked a treat. Coins go in every time and exit through the micro switch. Easy fix for a frustrating problem

Hello everyone, You may remember a few months ago i mentioned this project to do one day and that day has come. The machine is not working but i am working on that (ie recapped, replaced voltage regulator and checked clock etc), anyway my main confusion is with the MPU1 as i may or may not have some components missing. I am not sure if it came from manufacturing like it or they have been removed (from the back it looks like the former and the front maybe the latter. My plea for help is could someone have a look at their board and tell me the values for D1,D2,R1,R2,R3,R4,C1 and T1, i may or may not fit them, i need to trace them out properly to see where they fall in the circuit but it does seem strange. I would be forever gratefull if someone could have a look. I have attached photos so you can see what i mean. (missing components in the red box) Cheers Jim

I would bet that BR1 has failed short-circuit, very common in my experience.

Hello everyone. I was very quiet for a long time. I still haven't been able to get the machine working again and yet I have tried without success. But today, there is something new. I Bought the same machine which is also broken but it's not the same brakedown. I really hope that with two machines, I will be able to make one that works well. I will send the three proms to a friend to copy and to compare them to other three. The two fuses F1 et F2 are blown so I have firstly to understand why. I keep you posted

Been here! I only changed the fluo tubes to LED though.

just the standard Nuvous 1 & 2 ;-)

You are welcome, its been great watching this thread and seeing your machine come to life.

Thanks Clo. And many thanks for the ROMs. Be a pretty dull machine without them!

Nice one, cheers

Looks fantastic, well done for bringing it back to life.

They were designed to try and combat a high degree of fraud on S1 coin mechs. Any coin the wrong size that did not fit the cradle at the back would drop out the back,As the front reject plate of the mechs were being levered to one side to gain access to the coin switch from the front so,The metal shield over the coin switch was another anti fraud device then upgraded to the black plastic fitting which completely encapsulated the switch wire arm was another addittion.The black plastic fitting will also spit coins out the back but, As they not used in sevice,as it has been said just block that gap at the back of the unit as shown in picture.

Cheers gang. Sounds like a straightforward fix.

I’ve had this too. I actually wedged a coin partly in there to resolve the issue.

they are designed for the old bigger and weightier old 10p and 5p coins, so they pass through the weighted tip mechanism, the trick is to close the cradle on the tip mechanism so it catches the coin and tips, then adjust the gate so it bounces the right way

I seem to remember being able to pinch the edges of the round cradle thing inwards for the newer 10p, so they catch and flip.... Or just use cellotape and cardboard.

Cheers Mike. Kinda what I was thinking, seems a bit odd tho. The 5p mech is the same, although the coin chute part is missing also

I'm fairly sure I have had this in the past, I think I cut a small bit of plastic to stop it from popping out, but it was a while ago 😅

Is there a part missing from this coin mech? 10p's are inserted, and they are accepted...however, instead of the cradle flicking the 10p into the micro switch to register a credit, the 10p goes straight out the back of the coin mech (as shown by me holding a 10p) instead of dropping onto the micro switch. Any thoughts?

Well done on saving a classic, looking great

Love it! Truly an absolute classic 👌

That is super shiny. Plastics look mint too. What polish do you use?

Cheers. Cabinet is pretty good too. I think that parts were robbed out of it in the 80s and it has stood neglected in a 1st floor store room of an arcade gathering dust since then. The arcade has been taken over by new owners (previously owned by same family for 40 odd years) and they were clearing out old stuff. It still has that arcade smell which I love