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Like all these old techs there's more variations than you can shake a stick at! This one is obviously 4 reel, the main CPU board (I know it isn't a CPU board as such but hey ho..) has extra components under the blue connector. They are drilled and sign written on mine but not populated. Of more interest is the triacs as there is space for 12 all together but yours doesn't even have the extras ones drilled or labelled! The decode boards are totally different as mine doesn't have half the chips or the ZN1040. Luckily there is info on this one. The middle board is totally different and has loads more connections. The component masks are all printed too whereas mine are all hand written which makes it a little difficult to read. I'll post some pics when I get time.

Can't say I have seen any information about the changeover to 50volts, I would say It was down to the individual manufacturer Simon. My recollections are that 50volts was first around in the very late 1960s but really started to take over from 240v in early 1970s. Although Bell Fruit were advertising their machines were manufactured and operating on 50volts in 70/71, they continued to operate 240v machines like Waterwheel, Big Dipper etc on site right up to 1974 before they were withdrawn.

here are some pictures of the SLI there are still some ic missing, that have been ordered. you can see where they were, also the cap replacement is waiting for. the yellow tags are the tested ic these were good.

Nice machine! had that when i was about 15 years old first 2 quid in rolled in 4 bars, gambled to jackpot! never jackpotted it again in the 3 years that i had it!

Hey midi bob, I saw that too, the details on the boards with the connections and the text is very good, and very handy. okay a small update, I was sick last week, the weekend and yesterday. I removed and tested 40 ic chips and soldered most of them back. I had 8 broken (replacements on the way). also the 7 triacs were 4 broken, and 3 elco's and 3 diodes and some resistors. I am also looking for a photo and or simple color scheme, how the money counters are connected and the voltage? this because the previous owner cut the whole thing off (I still don't understand why) the money counters are missing.

Assuming the mech is being powered then I would suspect the coin inputs on the main board might have a problem. Depending what connections they have to the board will depend on what chips need testing. I suspect IC33 as that is used for the coin inputs. In my experience it's usually only the odd port that doesn't work but I've never had a MS111 to test it with. I would like to know what pins the MS111 connects to on the main board as I don't have that info.

Hello. I received the coin mech but it's the same, impossible to add credits. I'm not sure if it's because of the coin mech. So, I just have to follow the wires between the coin mech, the credit card and the CPU. Here are the pics of the credit card and of the coin mech MMS MS 111.

Well I dunno I don’t think that’s a lot, they was everywhere 87/88/89 started to disappear around 1990 if you caught them after somebody had copped and you were after a jackpot you could do your nuts!! Or be strimming for hours..

With £48k profit it wasn't on one of your rounds Nifty! 🤣

Hi Ron,my water wheel from 1967 was 240 volt on the reel solenoids and I think brenco was too.think carfield was 50 volt.So did it depend on manufacturer or was there a particular date they changed over.

Just use the name "Mr X" and alls good

I’ve got a few stories,raffles nightclub Salisbury,Altis snooker club Basingstoke,racecourse snooker club cosham to name a few but all very incriminating.

Simply incredible Simon Amazing job

thanks Tim thunderbirds fly's again

It will be a build up of dirt and possibly grease after someone has lubricated the solenoid, They are designed to run dry just make sure the plunger is clean and shiny and the core of the solenoid is clean of any dirt, Make sure the small vent hole on the top of the solenoid is also kept clear. If it's still too tight then the solenoid may have over heated at some point and the inner sleeve has expanded to nip the plunger.

no not any lubricant, that's why the trouble in the first place!!

No

Great machine john .these sys85 clubber s are the best clubbers of that era .

why cant you use WD40?? what about GT85??

can you not spray IPA on the plunger a bit to loosen it up? someone has probably oiled it in the past and the oil has now turned into a hard mass (no don't use wd40!!)!

The one that doesn’t work is really stiff. I Can just about move it by hand.

If you have a meter you could connect that to the solenoid wires then press start button,see if it reads 50 volt.

Have you tried swopping wires over from the working solenoid next to it or if they won't reach then swopping it over completely with one of the working solenoids to make sure it is the solenoid at fault?, They are operated by cam switches on the main control timer and possible it could be the operating switch at fault before you replace the solenoid. If needed, They are 50volts ac.