so in the AC/DC lower playfield there are 3 targets (above the 2 eyes and nose). These have never been quite right for me. They tend to lean to the left or right of centre and then if they get too far out of centre they don't register contact from the ball anymore (in the pics attached the right most target is off centre and has stopped recording hits).
My problem is I can't work out how to fix them. Initially i tried just tightening the screws that hold the "sandwich" of boards and plates together with everything still attached to the playfield. But this is very tricky. So recently I've been removing the whole L-shaped bracket that holds the targets from the playfield and then tightening the two screws that hold everything onto the bracket. But even that doesn't seem to be working - they seem to start leaning again almost straight away.
Am i missing something obvious? anyone else had this problem? any help gratefully received
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