Leaderboard

I went on Saturday and was treated to a warm welcome and free drinks. Can't remember shovelling so many 10p's into the slots before in such a short space of time but the sounds of the machines were fantastic, with the 80's music on in the background it was just like the old days. I got a few jackpots and lost a few gambles too. Glad to have made the trip, even though the trains were terribly delayed. My favourite was the JPM bingo fruit machine, forget its name. I remember some of them being really tight and nothing has changed lol, those being Chances Unlimited, Road Runner, Frog Hop and Fruit Snapper. Adders and Ladders is probably my favourite MPU3 shorter cab machine. Just a shame there were no taller MPU3's like Fortune Numbers or Strike a Light. Was also hoping for some BFM original Cops and Robbers. Maybe they will come one day. Overall a very enjoyable visit and quite happy to waste a few quid indulging in my childhood memories. Hope to visit again in the future.

I'm so happy because the machine works. I put in place the three eprom of the second machine on the CPU of the first machine and every thing is OK. Now I just have to wait for my friend to copy the latest files on blank 2716 and the two machines will work (I hope so ) So, forget the "Regent 1 files" , they don't work, I don't know why and I think I will never know.

Had a play with it today and can say that it is worth the price. Took the ics out of Nippy Nudgers MPU1 and it failed the 6810 ram and was happy with both the 6820 pias and the 6800 cpu. I then got carried away testing a pile of old MOS CBM chip pulls i have (6502, 6510 etc). Still happy to have bought the retro chip tester as well, i think they each have their benefits. Think i might go to the pub now before i get too sad and carried away testing things for the hell of it.🤣

Wow this is turning into a bit of a head scratcher. Can you check all the switch ports are OK? All the inputs to IC22 should be 5v with no switches operated. In which case all the outputs should be low.

Hello I'm back with an update. The oscilloscope arrived, I quickly got to grips with it, and here are the results in photos. IC 10 Pin 3: I'm getting a 514 Hz square wave. IC 18 Pin 12: I'm getting a 100 Hz square wave. And the third photo shows 100 Hz on R83; just as an example. This one isn't a square wave. If you have any other ideas, I'm all ears. In any case, thanks again for your patience.

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.

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.

I brought the backbit one useful piece of kit