Good Day to ALL. I recently modified my WMS machine with a computer power supply that “KNAGI” showed how to do. The machine was working great until I added some quarters to the hopper and one of them hit the J2 contacts of the hopper board. Now the machine has No deck lights, LED display, and the lights that are in the “Winning Streak” box. The florescent bulbs and the LED MATRIX box light up when turned on, then MATRIX box goes blank. One other thing when the quarter hit J2 pins the hopper started running and continuously runs. I checked the fuses and they are all good. (For some reason fuses are a joke on electronics, that I work on, They never blow!). Anyways I tested the board on the hopper and the 2 P&B Relays appear to be bad (open contacts when energized). Having No LED Display, I can’t see any errors. I have all my voltages on the cpu/mpu board. A bit stumped here. I ordered the relays for the hopper, but I’m not thinking that those going out would have anything to do with these other circuits. Maybe I’m wrong, but I could sure use any advice and assistance from Your Incredible Members or Staff. Thank You So Much for Your time.
Dan