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On power up EXIT RAMP 39 ERROR is displayed. While checking this I found these switches to also be inop:

39-Exit Ramp
56-Pluto SW (10pt)
54-Left Sling
55-Right Sling
53-Bottom Pop

But get this.......when you drop the #49 - left upper drop target and only while it is in the down position and its microswitch is closed the rest of those switches work until the game raises the target back up.

Im unsure if game issue or board issue. Where shall I begin?

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Don't answer all at once now......

Ok so two of us looked at every switch connection and all is well, I tested the diodes only on the ones in that column. No issues.