Leaderboard

I think this machine has been fitted with a Barcrest version of the software along with the CHR chip. He can’t go to 5p play as that will be BWB software, I don’t think he will have a physical compatible CHR. Best bet would be to contact John Parker over at DIF, he wrote software that can take these older MPU4 machines and patch the CHR so you can run the game without the need for the CHR chip in a real machine. He’s a very busy guy but it could be worth asking him. He only asks for a donation to his Arcade Sim project to keep things ticking over. J

Ah, yeah, I know he is extremely busy with other projects so fair play to him. I bet he get requests all the time. J

Cheers john

I wouldn't recommend doing a scatter gun change of all the transistors, it's a lot of work and I've seen lots of boards almost ruined by folks trying to remove them without the proper equipment. I'd follow Players advice and try and locate it first.

Thankyou il keep you posted. I have found somewhere who is confident they can reproduce the artwork but needs a good quality photo and then i can attach it to a piece of glass which isnt difficult to obtain from glass makers. As to how it will look who knows

You'll need to do a bit of detective work. Find out exactly all the lamps that aren't working then look at one of the SYS85 manuals that's in the download area. These contain a lamp matrix diagram which should help you discover which DATA and STROBE links they are connected too. You'll probably find they are all on the same link of one type in which case that will tell you which o/p transistor, driver or chip might be responsible. I seem to recall you can scan the lamps one at a time in test mode and it will show you in the display what number lamp is being tested. That might make things easier.