Please help!!
I have a Shadow that only the left flipper worked, so replaced the right opto flipper board, and then the lower right started working, but upper didnt..
Left and right flipper buttons only register one square each in the switch test grid...
I have 13v at the upper flipper board coming from both optos on right side , and when I press button, they drop to 0.. not sure if this is how you test them... any ideas ?
Thanks
First pic button not pressed , secon pressed