Recently helped a mate getting his first machine with picking it up.At the pick-up point, we played the game and it all appeared to work.
When we got it home, we powered it on no issues, but did not put a game into it. i quickly showed him through the menu's, reset to Factory Default for him as he wanted it, along with high scores etc. Then we both had to run off and do other things. When be powered it on later, the game was doing all sorts of weird shit.
1) On boot up the Right Popper (03) & Left Popper (02) are firing about ten times each before stopping.
2) When starting a game, its spitting balls out 1 at a time continually, no opto's work, no flippers work
When putting into solenoid test, flippers are all working, however no opto's work in switch test. Diagnosed as a Flipper Grounded Switch Issue as everything in that line is effectively poo. I can't really see how the factory default would have changed anything, unless something was disabled, so assume its an issue caused by movemen, but for the life of me can't see it. i assumed originally a cable might have just become d/c.
And what is possibly causing the poppers to fire on boot up?
I am intermediate with pinball repair, but never worked on JD and avoided buying one as i never wanted to really to work on it, but now im stuck doing it helping this mate, haha.
I searched the inter-webs and found this thread below which is 80% of the issues i have, ( minus the poppers) , however i am unsure what they mean about the repair, if even relevant & what the deal is with the poppers as i dont see how they could be related. I assume as issue happened most likely in transit, there is a wire break or connector issue, i just cant seem to find anything!
https://www.maaca.org/viewtopic.php?t=2838
Annyone can offer some guidance i would really appreciate it, doing me head in!
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