re - the switch matrix you posted above...
you need to compare it to the switch matrix in the manual. There's one inside the back cover and on page 3.2
Where the switch in question is a 'mechanical' switch with a wire (i.e. the shooter lane), then ...
A dot means that the switch is open.
A square means that the switch is closed - e.g. registering the presence of a ball
Where the switch is an opto, it's the other way around
A dot means the presence of a ball (or something in the beam)
A square means no ball (or nothing in the beam).
Am writing this at work - can check everything when I get home tonight if required (as the manuals can sometimes not be 100% correct!)...
Read the switch matrix from the top left (just the ones inside the square for now) and you have a matrix 8 across by 8 down.
So, looking at your switch matrix above, the first closed switch is two across and three down.
Looking on the switch matrix diagram, that shows as the buy in button!
So, unless you are holding that button in, then there's something wrong right there.
The one below that (2,3) is always closed - so that is OK.
In column three, you'd expect the top three to be showing as closed - so that's the left ramp, right ramp and Sanctum not working correctly. The three at the bottom are showing as expected.
Column 4 - depends on whether or not you have any balls in the trough - looks like you have all five balls in there?
Column five is showing that the battle field entry target is down.
and that's it - the fact that the bottom 4 in column eight aren't showing as closed - is telling me that all four battle field targets are down?
Hope this helps - check your buy in button.
Cheers
Geoff