Thanks mate, I have an altek onboard. The selftest and one other led are bot solid green. Haven't reconnected J1 yet so dunno what you mean by switch matrix working. Currently backglass controlled and gi ok, coin door lights ok.
You mentioned earlier that there may have been a short. The Switch Matrix Test will ensure the switches are all good before we try plugging in J1 to the rectifier board.
did switch test and all showed up correctly and activated when pressed. Will wait for next step before blindly plugging in J1. I did isolate areas I thought could have caused a problem but have not proven these have solved anything yet.
