Washington, DC
Hello!
I have mostly gotten our beloved Space Shuttle back up and running after a decade in storage, but I have one (substantial) problem left: The right flipper is sometimes weak! I have replaced the coil and replaced the flipper/assembly, so it's not that... all parts move freely, all related switches are okay.
Working with my tech (Thank goodness for FaceTime), we see that the flippers do not come through the main board, and are not on the switch matrix. My flipper board looks okay. The reason I think it's related to the connections to the board is that I tried a BUNCH of things to the flipper itself, to no avail. When we found how they are powered (and how primitively), he had me simply remove J1, J2, and J3, clean the pins and try to clean the holes out, and replace them--Boom! Full power to the right flipper... for about 3 games. When my kids told me it was weak again, I removed and replaced them again a couple of times, and full power again for awhile. Should I remove the board and check continuity, even though I don't suspect corrosion? I don't know that replacing the fuse that is going to even be a meaningful option, as I would expect weakness to affect flippers equally in this setup... and quick ideas to check for a specific loose connection? Is there something else boneheaded (or sophisticated) that I am not trying?
I've attached a picture of the board, as well as some of the schematics. Here's the manual, for good measure: https://www.ipdb.org/files/2260/Williams_1984_Space_Shuttle_Instruction_Manual_dated_Nov_3_1984_with_schematics.pdf
This is a new, EXCITING hobby, and I can't wait to hear your ideas 
IMG_20200122_192749482 (resized).jpgFlipper board (resized).JPGSpecial Switch diagram (resized).JPGSolenoid table (resized).JPGswitch matrix (resized).JPG
