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Gentlefolk, I've uploaded a new set of ROMs for Barcrest's Royal Exchange. The original imposed a gamble limit of £20 for all initial wins less than that. The new version will allow a gamble of the current win up to a maximum of £100. Here, I've attached a Word document explaining how this was achieved for all folk who, like me, used to think "How did they do that?!". Please be aware that it is not for the faint-hearted 😊 I'd like to thank chris217 for reintroducing me to the wonderful world of 1980s fruit machines, Sulzer Ned for drawing my attention to the idea the the emulated ROMs can be tinkered with and Eddie Coxon, who advised me of the programming language used and provided me with a huge manual and lots of helpful advice and hints. Now that you all know exactly whom to blame, I hope you enjoy the new version together with this documentation. Best wishes, Bernard ROYAL EXCHANGE GAMBLE BLOCK REMOVAL.docx

I had a go at making some replacement backlit bands for Tensation a couple of years ago. They came out pretty good, but it was a lot of time and effort. Sadly, I no longer have access to the printer.

Yesterday I took the Win stepper apart to soak it in vinegar overnight, and today I cleaned it – it was just like slime that came off. I lubricated it where necessary and put it back together. It took a bit of fiddling about and fine-tuning.

So, I’ve made a bit more progress; I didn't have time for the project for a few days. The parts that had been sandblasted have now been painted. In the meantime, I started working on the mechanical score counter; I completely disassembled and rebuilt it. That was certainly necessary, as some parts were already wearing against each other due to stiff movement and a lack of grease. I also installed the coin tubes.

Here is my STOP THE CLOCK modded roms 1: all cash 3 pounds 2: nudge block uncapped to 12 nudges on random stop 3: character and checksum removed (so you can make a spare card like i did) MOD 7B - CHARACTER REMOVED - TO BURN TO EPROMS.zip

This one had be going for a while. Fault was no sound although on the bench there was sometimes and it was very dependant on humidity and temperature. What normally happens is the battery vapours contaminate the board surface and it becomes conductive. Any trace voltage around pin 2 of the audio output chip will cause the chip to effectively switch off and there will be almost full supply voltage on pin 8 which is the speaker output. It should sit at half voltage (6V ish) but this was more like 11v! After deep cleaning the tracks and components that connect to pin 2 it started behaving but still not quite down to 6v. I then left it for a while to work on something else and when I returned and powered on there was no sound again! The voltage measured on pin 2 was about 0.6v whereas it should be approx 0.02v. So it was leaking again somewhere? Next thing was to remove the sound output chip and the two little yellow caps that are connected to pin 2 and see where the voltage was coming from. Well lo and behold it was still there. There was nothing else connected to pin 2 so a lot of head scratching started. The next thing I noticed was that the track ran underneath the sound synth chip so this had to come out and look what I found underneath!!! The track runs through where it says R28-30 and this stuff was sticky and conductive, could be tobacco film who knows. Anyway a good clean on the board and the chip and no more stray voltage.

Nifty Fifty (MPU4) – Solid Silver minimum £1 mod I have a Barcrest Nifty Fifty (checksum-removed) ROM. The Solid Silver feature (triggered by three 50p symbols) used to be able to award 50p. I wanted the minimum award to be £1 while leaving the feature start, lamps, animation, and the rest of the payout logic untouched. Two prize tables were patched: Table at $9C28 Table at $9496 All leading 01 entries in both tables were changed to 02. This forces the lowest possible Solid Silver prize to £1. The file is based on the existing checksum-removed master so no checksum is re-introduced. The working version is: Nifty Fifty - Grok - V4 - Solid Silver Min Pound WhatsApp Video 2026-10-18 at 00.26.25.mp4 NIFTY GROK 4 PROM 1 - 27256.bin NIFTY GROK 4 PROM 2 - 2764.bin

Does anyone have any other Summit Coin roms ? I Have Ultimate Nudge already, I am got the tech running on my JFruit emulator. If you are interested you can try it at Click to Play Ultimate Nudge

I am happy to present to you my MPU 1 Emulation as part of the JFruit Emulator. with thanks to the MPU Mecca for the resources Play Big Apple Play Golden Nudge It Play Lucky Nudge Play Match It Play Match Up

Ace System 100 - Early 1980s Clubbers, with thanks to the MPU Mecca for the resources Silver Machine Rainbows End

Thank you. I appreciate it's tough going but I hope it will be useful for someone. These gambling blocks seem to annoy everyone these days! Back in the day, they probably saved a lot of people some money 😄

well done bernard. i will probably do NIFTY 50 today to rid the petty 50p on the solid silver so you at least win a pound. I unblocked the nudges and cash prize on STOP THE CLOCK so the nudges go to 12. it so far runs good. I think the club machine blocks were more aimed at the DOUBLE OR NOTHING gambles so the machines didnt get smashed up. can you imagine having 50 quid and do a double all or nothing and it lands on lose

MDM 1981

Pinball Heaven stock them on eBay. https://www.ebay.co.uk/itm/371532527747

I’ve had a bit of time again, this time to work on the mechanism control sequence timer. This one was also covered in rust and grime. The gearbox was almost seized up; I could barely turn it by hand, but luckily a bit of penetrating oil did the trick. That could easily have cost me the motor. I’ve also started dismantling the door; I’d already taken it off. So that various parts can be soaked in cleaning vinegar.

It was time to clean the credit count sequence timer; it was dirty and covered in rust. It was quite a job to get it apart. Fortunately, I’d already replaced the AMP plugs on the switches. After a thorough clean, something wasn’t quite right when I was putting it back together – I kept losing the screws from the switch terminals. It turned out I’d turned the 4-sided rod the wrong way round, which meant the screws didn’t fit. So I took it apart again and paid close attention this time. Some new bulbs (6V 2W) had also arrived, so I replaced them straight away. I also fitted new film capacitors for the RC snubbers. The old ones were already starting to crack and their capacitance was barely there.

Posted 2 minutes ago · IP (edited) Brenco - The Mint (Electro Mechanical) ****************************************** The Mint by Pete Walton ****************************************** Manufacturer - Brenco Stake - 2p one play, 10p five plays Top award - 25p Gold award token ****************************************** Shortcuts... 7 - Enter 2p 0 - Enter 10p 1-3 - Holds M - Mint Space - Start ****************************************** Artwork redrawn from photographs of the machine; reel strips from photographs of parts of them. Circuit from Brenco's schematic and service sheets; cam timings designed. ****************************************** Thanks to the MPU Mecca for the Schematics Download for MFME The Mint.zip or play now in JFruit

Nifty Nudge Play Nifty Nudge

Yes i would love to have met someone who programmed them. My son designs games for children online and he has a programmer that makes the software. I am pretty sure i was told 20 years ago that the same guy that designed both SMASH AND GRAB and BIG SHOT moved to the states. There was also easter eggs programmed into alot of these so the programmers would go around the country if they lost their jobs and canned them. I think i heard an ACE prgrammer got caught out. Would have loved to have been about then. I was only 14 when sag came out , i was in the industry but was told i would never learn how to break into these programs. I said "HOLD MY BEER"

Its sounds good bernard but if you remove the gain code then what would happen on unlimited nudges 🤔. Id hate to fluff the jackpot and then think it doesn't matter as gain will nudge the bars in but, without the gain obviously this isnt possible unless its a different bit of code for the unlimited nudge gain .

Thanks for this, John. Exactly the same point was made to me verbally only a few days ago. The 'exchange for nudges' option ensures that you don't get a decent win and it doesn't offer it at all if the current win is too high. Ignoring the cherries is, I think, possible as the code stops looking for winning symbols once it finds a cherry. Telling it to stop looking appears fairly straightforward but you would then need to avoid the GAIN code which looks for an alternative when it finds a win. Obviously, it won't find one if the whole point is to ignore the lesser win. That is far more difficult. I'll take a look when I get some time. Please don't hold your breath 😊

Thank you, sir - I do agree, but I also wonder who would have risked a gamble of £50 or thereabouts forty years ago? 🤣

https://www.ebay.co.uk/itm/371532527747

Sorted thankyou both of you

Thanks, Sulzerned. Luckily, I was able to buy them from an online pinball shop.

Still very usable Mike. If you can get some decent hi res pics of a bottom glass for sag you could go down the perspex route which would be cheaper than glass printing.

This is an Electro Mechanical Clubber from 1976 called The Gambler from the long defunct Automatic Fruit Designs Ltd. Thanks to the MPU Mecca for the Schematics Manufacturer - AFD Timer settings - 21-9-76 Stake - 5p, 2 plays 10p Jackpot - £40 (super odds) ****************************************** Shortcuts... 7 - Enter 5p 0 - Enter 10p 9 - Enter 50p for change 1-4 - Holds X - Cancel C - Collect G - Gamble Space - Start ****************************************** Download and play in MFME The Gambler.zip or play right now in JFruit

Hi!! Great. Thanks.

Many thanks for this @pete_w. Bullion Bars was the first clubber I played legally. I won £16 that night, paid out in 50p's Back in those days it was about 32p a pint, makes you think then your are throwing 10ps in it. Is there any chance of payout sounds? Cheers WF.

Much appreciated, many thanks

Your thought that it may be a different piece of code is correct. When it's letting you off a mistake on unlimited nudges, it looks at the reels in order (4, 1, 2, 3) and, if the reel it's currently examining is not displaying a triple bar, it nudges it up until it is. This has the strange result that it nudges a reel up 23 times instead of once down if the triple bar is immediately above the winline when it starts. It also means that it nudges straight through the cherry. The usual GAIN code is not invoked at all. I think I tried to demonstrate this at the end of my recent YT video entitled "Four-reeled extravaganza...". You raise a very important point though. Changing one thing may indeed have unintended consequences elsewhere! 🤪

Good for you! It's not easy and requires a lot of time and effort. They'd certainly not be far wrong if they calculated that there would be hardly any people with the determination to persist!

Brilliant, thank you for doing it Bernard.. 🤩 Another challenge for you if you get time.🙏 This is an issue I think spoils the fun on Royal Exchange for home use.... When you exchange for nudges there's always a pesky cherry that stops you getting a better win, would it be possible for the software to ignore the cherry and nudge in a better win? John

Great work Bernard. Can't say that I understand it. Impressive though 👏. Thanks for sharing and explaining 🙂

Probably not me 😁

Sweepstake next?

Layout NCU.rar

Should have that file when I did some 10 years ago. Will have a look... But the chip on my board was not locked so I just read it with my dataman pro.

Cheers nick ,, I wouldn’t imagine there would be many of these around now,,,

IVE GOT A PROBLEM. THE new classic layout dont let you go into test mode the door switches dont work. i need to force play so i can see the memoyr debugger for the cash prixe as ive incresed it to 1.50p and ive increased the nudges from 4 to 12 instead of 1 to 8. the nudges work brilliant. the 1.50p will pick the 1 but the animation steps are still 20p to 1 pound. i will be there forever. is there no old version of this on older mfmes

Hi, Great restoration work. Congratulations.

Well done, it looks good, nicely repaired

Yes, of course, Daveo138 and Sulzerned, it is in the Netherlands. link : GE44 6volt 2watt 10mm bajonetlamp

Yes, I’d say so too, sulzerned that’s what I’m planning to do as well

I actually forgot that I have the top glass 😂 it's a bit ropey but okay

Newbie ... looking to delve into emulators, all fun (and games). Hello from North Yorkshire ...

i Can't believe this thread is over 16 years old and sort of still going 😁 Anyway as for the project. When i started this in 2010 i was always hoping that others would take part and improve on what i did back then(which they have).Materials depend on backlit and none backlit. The best way is probably to look through the thread and see what different members have had success and failures with.

When I worked for Bell Fruit, we never did any maintenance on the reel motor. I don’t know if Ron can confirm that. It was rare to have a motor problem and, if we did, we just fitted a new one. There again, the machines were not very old.

Yes it seems to credit no problem that way, thanks for the offer Graham I just ordered one from steve at swallow

Once everything is apart you should have the unit looking like this in small and lager version shown. NOTE.... An important point to remember is the main timer control cam shaft with it's red and grey cams are all set in degrees of operation which is crucial to the running of the machine. you must ensure that none of them are altered or moved in any direction or the result will be cam switches being operated in the wrong order or not at all. normally these cams are tight fitted and do need some force to move them but still treat with caution. The red and grey cams are set together in degrees around the shaft to make dwells in the cam of which the roller of the cam switch will run in and back out only one time, in turn this will activate the cam switch. A single red cam does exactly the same but usually to operate a switch more than once during the game cycle.