Hi All - I seem to have the 5V reset issue with williams IJ. It was resetting on Friday night when I had it on alongside a bunch of other machines for an extended period. Haven't had the problem before or since (though rarely have it on for that amount of time) but the pinsound diagnostic file confirms that its dropping to 4639mV. I'm following the pinwiki advice on problem solving this, and so far can show that I have a solid connection between Power and Driver board (only a 0.02 VDC drop). So next step was testing Bridge Rectifier and Capacitors. Caps seemed ok at 250mV AC, BUT...the Bridge Rectifier was coming in at 11V when it should've been 9V. This seems weird! If it was duff it should be showing about 7V so I don't understand why it would be higher than 9. Any thoughts? From what I could see, the positive lead of BR2 (which is what i was measuring) did seem to have a slightly rubbish looking solder connection - but would this cause an increase in voltage? And how would this in turn lead to a drop below 5V elsewhere. Next step is likely going to be taking the board out for a better look, but any advice on what I've found so far would be much appreciated.
Thanks!
Thanks!