Leaderboard

Heres my next release from a german machine called Jokers Gold with Impact tech. have fun and a good payout :-) Jokers Gold.zip

Hi chaps, My summer project this year is to get a test rig together for PC-92 boards. With a donated board I've started putting together a few bits to try and get it running. As I don't know this tech at all (yet) it's proving a challenge although there are similarities to MMM which I've worked on.The Proconn manual in downloads it almost the same but I've yet to find any wiring diagrams so working out the switch matrix, 7 seg displays and alpha is mostly poke and hope. I've never seen test software for this tech either although it must exist somewhere I'm sure. So far I've stripped down the RESET cct and associated bits near the battery as there were lots of green legs on the transistors. Only one resistor fell apart but it was good to get them all out as the solder had gone crumbly anyway. New battery rivets have been put in and the associated track mended. I've picked up some good tips from Andrew and Louie Bee especially Andrew mentioning about the 53v lamp feed. I found that the board was highly conductive even though it looked fairly clean. When cleaned with a cloth the old tobacco film was found to be quite extensive and the slightest bit of humidity would lead to voltage readings being picked up on the surface of the board to ground!! I dread to think what would have happened if I'd applied the Lamp voltage. The good news is, so far, it does boot and with a Jackpot Jungle ROM I get characters coming up on the 7 seg display and on the Alpha not that they make any sense. I have two other ROMs 8xCash and 777 but neither of these appear to do anything. Of course I may have the wrong code and also, I've got no idea how this tech is meant to boot? There are no sounds of any description ie alarms and I don't think the meters are being activated either so the AY-3-8910 might be knackered. The RESET voltage only rises to approx 3.4v and I'm not sure why as yet but it does appear to be re-setting OK. Vbatt is good at 5v. Things I'll need help with are :- What is the boot up sequence? I assume it will try to sense the meters then alarm if disconnected. Does the alpha display the code version immediately on boot or does that come after the meter check? Same with the 7 seg, should that be showing me percentage or something readable. Are there any links that need to made on the switches (like JPM Sys80) for it to do anything? I only have the single ROM fitted I assume the ROM cart socket isn't always necessary? Here's a pic of the board midway during surgery. I'll post some more when I get further down the road. I'll hopefully get around to producing a modified schematic for the PC-92 as we don't have one and I'll collate any other info gathered that might be useful.

I have found out that you can have a very high quality result for a low price for non-backlighted reels: Here below my reelbands I created in photoshop for a fruity I build and didn't had the original reels, only a reelplan and similar symbols from other reelbands to scan. Originally this is backlighted but I couldn't find a copier who could print this in a silk screen print method. (I assume that the method for reelbands is silk screen printing, or is it another technique?) I had them printed at a professional printcopier organisation on a high-quality photopaper (with high gloss) in adequate resolution (300 dpi). I payed about € 35,- including cutting the reelbands for 2 copies. (so 12 reelbands in total, 6 fronts, and 6 seperate reelbands with the black masking). Sitting next to other fruity's it is almost not noticable that these reels are printed compared to originals. If I turn them on you can see that the backlighting is not so nice as an original reelband. But if you don't have backlighting in your reels, and want to save some money than this is a real good alternative. But for now I am actually only interested to have reelbands printed for backlighted reels, which I believe is a silk screen print method. If I can have reels printed with this method, I have several reelbands (about 10 pairs of 3) which I would orderd. And I will be willing to pay a good price for it 😉 So I am still on the lookout for the silkscreen backlighted print option.......... 🙂 (Edit: I cropped this image, so the resolution looks sh*t, but it is a high resolution originally)

Hi mick if you have no luck with anyone that has the files already on there computers for you , I could pull my ones out of my machine and ask mark if he can download them for you mate