Leaderboard

Not available unless someone has it in their machine and is willing to dump/flash the data

Yep, every time I use it I hear a 'kerching' in the background!

The nightmares continue... Just finished a board that after the usual corroded components had been swapped out showed up a lamp fault with some lines not working. From cold though they were all working, I also noted that once the lamps stopped so did half a bank of switches. No amount of freezer anywhere or preheating the board made any difference to the time the fault took to show? With the switch test running on the diags the bad bank would work until a couple of minutes when if a switch was operated the board would continually bleep as if the switch was being operated on and off. Shortly after it would just stop and the whole bank was then dead. The other bank worked just fine?? Eventually I noticed that IC4 (6821) was losing an o/p which feeds to IC11 (74LS138) which controls the mux pulses for the lamps and switches. From cold it was there but then it would go intermittent and then stop. No amount of freezer on IC4 made any difference, nor did heating it up before switch on. So, in with a replacement and bingo all switches remain operational. Ready to wrap up when I noticed there was still one line of lamps out. IC11 had a bad o/p. Once changed all was good. Phew!!

A reset fault on the MPU will cause that clicking on the PSU too. Very old and temperamental tech. A nice machine, one of my favorite of all time. Skill cash is always skill too

Andrew has given a load of knowledge and information of the whole area of the game card and the problem. Nobody else has contributed anything. There's enough to take in and have a think about. If I ever come across this prob I'll be coming back to this thread and have a crack myself. I've only skim read this thread a few times but it sounds like the area that's problematic is the resonator circuit to the rtc/pic when the powers off.... that's enough information lol? Obviously if your an engineer there's no end to people's problems there's no end to people want to make £££. How many people want there broken fruit machines repaired? Does Andrew have to do them all?

With others charging £48 without really knowing how to fix them and just poking about hoping they will fix them for that money , then I am not going to help them line there pockets with the info I have found out. One thing I hate is others making money from my work as has happened in the past, so your right I am not going to do this. They can be repaired buy not by the hapless way it is done at the moment (as you have found out). Sorry if this annoys you but I have my reasons