I have an issue withe the inline drop target bank of my Metallica. During the game, the drop targets will reset spontaneous three times straight, without any reason.
I detect that one opto from the drop target bank is not working. So I ordered a new opto board from Stern, but the issue is still there.
I checked for any loose connection under the playfield and in the backbox - but it seems everything ok.
Is there anyone with the same issue?