First thing to realize, is to get to know the fundamentals of how the flipper system works in this game. The fuse for the flipper voltage protects both flippers, so if the fuse is blown or some other catastrophic failure of the power supply to the flippers occurs - BOTH flippers would be dead. You should get to know your voltage measuring skills - checking for DC voltage present at the coil is first. Grounding the trigger side of the coil momentarily will then reveal if the coil is working. 99% of the time, if one flipper is failed you won't be needing to replace the fuse or coil.
Next, you check the EOS and ground path back through the flipper system. The EOS must be making good contact when closed to transfer current to the coil. Find the cab switch and momentarily ground either side of the contacts. One side should trigger the coil. If it does not, go back to the mech and examine the EOS and associated wiring there. If grounding the flipper cab switch did work, then you check the cab switch contacts and the ground path back to the MPU board. The ground path runs through the MPU board for the sole purpose of relay control for the flippers to be enabled or not. Sometimes there are connector problems involved here. A crude simplified diagram below:
s11flip0 (resized).png
Phoenix, AZ
