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The only set that I can see are Rev 2.1 which is what you are using. I'll have a sniff about to see if there are any earlier versions available 👍

Mine has just arrived and yes i did £43.80 in total of which was £2.38 import duty, £30.00 ish in VAT and £11.00 ish in disbursment fees what ever that was for (probably Fed Ex charge for collecting the taxes.) So in total with carriage it has cost about £235.00

Hello Thank you for all this information. So, still no luck with the oscilloscope. I replaced C34 just in case (OK). C32 and 33 are new and have been rechecked (OK). The measured resistances 67, 68, and 69 are perfect (OK). In this configuration, it's still 487 Hz. Then, I replaced the NE555 with the old MC1455, and then it jumps to 514 Hz. But it doesn't change anything; the problem is the same. I'm still getting 99 Hz on pin 13 of IC18. Well, I'll see if the values are equivalent with the oscilloscope. Thank you very much.

Thank you for the fantastic layout.

I'll take a look.

Are there various roms for this game? Are there earlier ones than we have?

Lovely stuff, thanks for this Vectra!

next up is some 80's old skool fun in the form of Naughty but Nice on Mpu3 Tech, Thanks goto @WonkySausage - images @wayfinder - layout used for lamping references @Pook - main reel symbols @pete_w - for the star and NN symbol Shortcuts are listed within the notes This machine accepts All coins including 1p's,2p's and 5p's not £2 coins as they weren't around when the machine was released Enjoy and HAPPY Gaming!!!! Naughty but Nice £3 Dx.zip

That’s why I didn’t buy them. had they been the power ones then maybe.

Jabdog were selling these separately a while back for an outrageous price as a pair with crimp pins. Pity they didn't sell the bag of AMP connectors separately as I probably would have bought them. To get all the other unwanted stuff with them puts me right off.

Ah OK. I know for sure that the diags won't even run if the 500Hz (500-660) is out of limits, not sure about games though but 487Hz would be enough out of spec. Both R68 and 69 should be changed as they go out of spec. The 0.1uF poly I have found needs to be selected to get the oscillator frequency correct. The % variation of this component (even new ones) is quite large and you may need to select one that puts the oscillator in range. Sometimes the 555 can be responsible and also C34 although not so often. Also make sure C32 is OK (0.1uF), I think you've already changed this. The waveform is square wave but it's not a 50/50% pulse width.

I have the logic files for the CPU card. I dont have the files for the export game card sadly...im happy to share them with yourself or Andrew. You can always try reading them too. IMO I dont think they're for security, I think the purpose is to keep the cards compact rather than having 6-12 extra logic ICs onboard.

Hello. So, while waiting for my equipment, I've been looking into all this. You're probably thinking, "This guy's a complete idiot," and you'd be right. I just realized that one of my multimeters can measure Hz. I've never used it before. So, I hope you'll forgive me. Let's get back to that. I'm getting 100 Hz on IC18 pins 12 and 13, as well as on the following diagram. For IC10 pin 3, I'm getting 487 Hz (not 550-600 Hz). Please note, I don't know if the signal is a square wave and if I can trust my multimeter in this range. In the meantime, this gives us an idea. Thank you for your patience.

I remade my own to do the same logic functions, I found originals to be security locked, but others have found some of them to be open

2 Job lots that look like they include some brand new connectors. Looks more like the triac plug than the power one. https://www.ebay.co.uk/itm/365966669642?_skw=365966669642&itmmeta=01K9WZGM156T0DQQWYT25CGTX1&hash=item553550374a:g:t9EAAeSwAJVo9TCR&itmprp=enc%3AAQAKAAAA8FkggFvd1GGDu0w3yXCmi1e8NtF%2B8L2f4Q6XmZZcgnVOjWtYeHvMxfHm0f8pBjp%2FdMq41TO1Q1K3zhOeVcVAPqABFdrqH7HS8A1E4t%2FVwsivDKtYb68G8Emsn6QkOXIL200OLKW1buPVkjVB72MjElsK%2B%2B62qFAwxmTdLSULOgvtGCxuFBHzfdPM9ED6NTg7Le8cmiqHi%2FJq1SmVlCRJUpEsxJTxNtR21zULWcXqiq94QJGNwnmLaQ0fezIXjKRu4egpOB--vBaSf%2Bhjbhdc8Z9RPwxbEiY2Mb8yM3F32PGlgJ1qy8c%2BZr2rpGaJeZrKTw%3D%3D|tkp%3ABk9SR9bAwp_PZg

New member from the UK

lol, dont know what happend, but accidently deleted this thread. talking about the GAL/PAL ic's si it possible to dump these? are tehse security chips?

Good evening. Well, I've ordered an oscilloscope and a logic probe. I'll need some time to receive everything and get used to the basics of using it. I'll keep you posted. Thanks.

Hello Yes, Northstar; but look above at a photo of the MPU. You'll see; all the red points are new components. Mounted in sockets. I actually started with IC5, then 6840, then 6808, and... all the integrated circuits. Thanks

Lamiral29 sorry you are right. It is PIA IC5

Good evening. So, to answer in order: To Midibob: I tested the components mentioned; they are OK. Next, to Northstar: Yes, when powered on, it goes into attract mode. No unusual flashing lights. The error occurs at the start point when the rollers spin. I've included some videos at the beginning (wrong dimensions; sorry). 1st video = power on 2nd video = attract mode + credit + subtract credit 3rd video = Stakes 1 to 10. Start, then error. IC6 on MPU3 manages AUX1 and 2. It might be different from MPU2. I'll keep the logic probe in mind; thank you. I'll see in the next few days whether I buy an oscilloscope or a probe, or both. In any case, thank you for your interest. 🙂 If you have any other ideas, Thank you.

Thank you very much 👍. I don't know what to think about this information. The two machines and the CPU are exactly the same but not the eprom .... I'm waiting for them and then I will redo the all the checks. I keep you informed.

This cabinet unfortunately, it was under a porch for a while (damp) got it cheap for scrap price. This didn't do the cabinet any good. The woodwork was salvageable. The base was completely rotten, amazingly the glass plate illustration is still good. I also think this is moisture-related. The MPU3 will be completely overhauled, including resistors and capacitors.

Does the cabinet stay in attract mode when you start it? Are there any flashing lights, etc.? And does the error only occur during reel spin? I suspect a faulty PIA IC6. I've experienced the same thing, only with an MPU2. I use a scope or a simple logic probe. The logic probe can be connected to the 5V and 0V terminals on the MPU. Then you can test the IC's inputs and outputs. The LED flashes when an IC is active. If an IC is not active, the LED either doesn't light up or stays on.

Hi all, A bit of a long shot but I don’t suppose anyone has any coin slot newspapers from the 80s to mid to late 90s ish? They’d be willing to sell? I have a few from 1989 I’m happy to do a trade with also. Dates aren’t too important, happy to trade a 1989 copy for a 1995 copy which might be a bit more appealing. Likewise would be very interested in purchasing / trading some amusement business newspapers too. Feel free to send me a PM if anybody has any for sale/trade Kind regards, David