Leaderboard

Ok thanks guys for your input I’ll give it a go most appreciated will let you know the outcome 🙏🤣

ok well you possibly have bought a board that has failed, or at the very least needs to be tested properly on a proper scorp 4 board tester, something like this which tests everything

Thought I'd post a video of this for you. Its set up as 5p/£80. It isn't switchable and I do not know if 10p play ROMs exist,although it would defo Need a glass change if I wanted to change it. Plays ok but all the wins are small normally but feature quite regularly. I used to own one of these about 15 years ago set on 10p/£150 and was probably the best clubber I ever owned. £10 credit challenge for you.

hello and welcome might be helpful to introduce yourself and immerse yourself in the site ? youve not even said hello haha

so this is how I go about repairing a broken eprom leg! this is a sound rom in my epoch wildside, someone previously has soldered a wire to the broken leg which broke off when I removed the eprom!! so I desolder the remains of the wire and find a suitable replacement pin for the eprom, in this case it was a ST rom and luckily had one that no longer programs in my duff bin I can pinch a pin from! pin from donor is cut off slightly smaller and tinned next the remaining bit of the pin stub on the eprom is bent in slightly so the new pin fits on the top! (now you can see why the new pin stub is cut shorter! next eprom and pin is placed in a turned pin socket, this helps considerably to get the new pin in the right place and alignment and getting the new pin stub to sit flush on the old pin stub! bit of liquid flux and a touch of the soldering iron later and new pin is fixed!! remove from socket and clean the flux off..... that will do for me!! job done!

it's not difficult, pop the chip in a turned pin socket then just solder the stubs into the socket, means the socket is no longer a socket but least you have all the pins to go into a board or programmer to read that's a jpm chip with some broken (and missing) legs soldered into a socket to make it good, then plugged into the socket on the board!

OK so what bout a eprom that's been put in the wrong way round and no longer working!! (or in the case of this one it has just failed with age as this one was soldered in!) this is it!! This usually happens to a epom that there is not a dump of!! well what usually happens is the power +5v pin gold wire inside the eprom burns away, can you see it in the pic above?? well have circled the ends of the burnt away gold wire in the next pic and really made big! So this needs to be remade to retrieve the precious data! so the quartz window has to be removed carefully! this takes a lot of care! done a good few this way but had just one crumble the bottom half so was totally useless!! but if all goes well the top comes off enough to get to the die!! I solder a tiny wire to the power pin and very very carefully bend it to rest on the die where the broken wire is! looked like this!! then very quickly set to read the eprom!! this is a 'if there is no other way' method! this was a display from a electrocoin pyramid which has 2 eproms on the back of the display, I presume as a table to light the segments, but it got the data and was able to reprogram a replacement!