All Activity

Try changing the THEME to NEW DEFAULT. that usually lets you see the forums.

every threads I cant get in to read. is this forum broken?

Yep, for a long time: https://www.radiomuseum.org/collection/piotr_jachymczyk.html Also mechanical and early electronic calculators (with nixie tubes). I will have to buy one then, it may come in handy. But still, electromechanical logic is the best for me - like those Rotamint etc. German machines.

Older electronics....... Valves? 😀. So 6800 processor, 6810 ram and 6821 pia, pretty basic set up really. The roms (2716) should be able to be read by any eprom programmer even the cheap chinese ones. As Bob quite rightly says best to get them checked first and if they are ok get them backed up.

Exactly, it's a timer MC1455. As for the processor it's Motorola MC6800L along with MCM6810 and MC6821. ROMs are HN462716G. I must say, I never dumped any ROM, it's completely out of my expertise, I prefer older electronics. What would be the best way to do this? Maybe I'll ask around and there would be someone nearby...

The game will be on those ROMs and I expect they are rare as hens teeth. I would get those dumped and hopefully they are good as if not you could be wasting a lot of time. Does look like the precursor to BlackBox, the RAM board looks almost the same. Chat GPT thinks it's a Z80 but I doubt it?

I would start at the beginning and back to basics, is the power supply good are the voltages stable, obviously a stable 5v and whatever else there should be. I assume the power supply is in the bottom left of the machine. Those 3 electrolytic capacitors (also the 3 on the main board) could do with changing, after 46 years they aint going to be the best. Also what is the metal can device above the relay, looks like it could be an old school 555 timer or 741 op amp or i am completely wrong. What processor is it?

Hard to tell be the mpu looks like black box tech and I'm sure all chips are in sockets on them

Hmm... Those sockets look original, as there's no difference in soldering work. I already took off all ICs and cleaned and brushed PCB with baking soda and soaked it in isopropyl alkohol. I also checked some traces and there are connections across them but I would need more time to check them all. That relay seems to be a protection of some sort - it disconnects 5V from the rest of the PCB and when it's active it connects the voltage. I suppose the upper left portion is control of higher amperage devices and the lower left is input part. After all, it's quite a riddle for me as I don't have any experience in that kind of machines.

The battery damage looks quite comprehensive, hard to say from that photo, could do with some close ups of the pcb and the back. The corrosion creeps under the chips and there also appears to be some green hue on the ram jumper socket. I assume work has been done on the board before as every ic is socketed. The relay is anyones guess without experience or a schematic, could be something as simple as a jackpot / attendant bell. It would originaly have been screwed down on to a base with a door on the front of that and the overflow of coins from the hopper would go down in to that. Looks to be an electro mech reeldeck so i assume the circuitry just reads the reel positions after they have stopped and does lamps and sounds (if it has any). I am sure there are other people with more experience on this machine and may have some information on it (certainly a flyer). In the meantime get some close up pics of the pcb.

Yeah might be as easy to make a bit of loom with a header for the machine matrix plug with the %pin shorted. I love faults like this...where theres not much info. The switch matrixes usually seem to be massively overkill for the number of inputs the game actually uses, they always seem to do the easiet thing possible when getting creative with adding stuff. It could also be a shorted imaginary button in there aswell, or extra wire linked to a door switch return. Defo one that having the machine would help. Great machine to work on though.

Don't know, haven't got to the bottom of that yet but there has to be something somewhere even if it's just wire links in the loom. The delights of PC92!

Pictures: I suppose that the relay is sort of protection device - that perhaps there's a short somewhere and it switches on and off? The battery was also removed, it was completely dead so no difference now... RAM is on the small PCB, and there are two erasable EPROMs on the mainboard. Any chance they keep the program data and RAM is only for keeping scores and current games?😞

Unfortunately no, I only know that it was in the Netherlands and the previous owner also bought it somewhere... I think originally it was taller as there are holes for coins on the base. It doesn't work unfortunately, top lights up but the relay on mainboard clicks constantly for now. Mainboard was slightly damaged by battery acid but after thorough cleaning and replacing two transistors which had their wires corroded through it's still the same. I will send some pictures of inside later. Any general schematics would be nice to have as my time is limited (curious little boy). In theory I could draw it myself as I worked as a mechanic of printing presses but it's too much of a hassle. Cheers, Piotr

If I remember, at the time there where some dodgy 🤠 conversion kits for this series of game, Andy Capp, Hyper Viper etc... to convert to all cash £5 jackpot, same pic for all the different machines, I remember doing a Andy Capp, we had no glass so I changed the £6 for "Jackpot" also in the hope of a jackpot increase in the future 🤑, some hope, never thought I would more or less retire before it happened 😁

Hi Piotr and welcome, That looks an interesting machine, do you know any of it`s history? Do you know if it works yet? I assume the 2000 jackpot is paid by the attendant (i cant` quite make it out from the photo). Pictures of the inside would be good when you get chance. Cheers Jim

Hello, few days ago I became an owner of 5-liner called "2000 coins Jackpot". To find its way to Poland (where I live) machine certainly lived through a lot. I really hope I can find some help here, as unfortunately for me I am more of mechanical and electrical guy and I am still not convinced about those fancy electronics and processors - although I know the basics of digital circuitry. Best regards, Piotr

Is the % key external from the board or still on dips?

Definitely no boards in the machine and it is a front opener. Ah yes % key, at least that proves I'm on the right path if emu does the same.

It's quite possible it's the %, as that's what the error is it's the same in the emu, if you get that 402 error you just add some checkboxes (buttons 11,12,13,14). and that clears the error, and the machine will run.

I love those old machines. its bring back my memory and I enjoy playing with it

Not my first Rodeo, when do we get paid?😂 All jokes aside can the guy with the machine confirm if theres any boards located in the machine? I'd defo be interested ina dodgy switch matrix plug for the board if there is. Is it the very last front opening cab?

Hi People... does anyone have an Epoch machine that uses this plug? If so please can I have a pic of the plug wiring? Thanks

OK, things are looking up. I've discovered that connecting switch return 5 to any of switch feed 2,3,4,5 clears the 402 error and it then goes into the game. So I'm guessing these must be the stake switches?

Just come across another doc from Crazy Pays which says a 402 error is a Hopper very low warning even though it say No % key detected. Who writes this stuff? So I possibly need to know now which switch matrix pair the hopper connects to just in case.