Quoted from pinballjj:no need to to rewire or swap the position of the coils just take the glass off and flip the diverter so it lines up with correct skill shot side on the dmd,or option 2 with the skill shot on the dmd and the ball still in the shooter lane open the coin door and hit the blue button once to line up the dmd with the diverter
I never gave it much attention but the left diverter does indeed switch to give you the ramp shot that has not been activated yet. the ring lights are never off though they are either flashing if unmade or solid if ramp made . the diverter repositioning does not depend on whether the coil is activated the machine just keeps track of the ramp shot that was made and switches the diverter to the unmade side for the next ball. I confirmed this by activating one side ramp switch by hand and the draining the ball without ever activating the diverter, for the next ball the diverter flips to the unmade side.
I think the machine "knows" the position of the diverter by the status of the ramp switches and the blue button
I tried out your suggestions to see what happens but the Shadow knows . The first option of manually changing the diverter, the next time you hit the left blue button it switches the highlighted shot on the DMD but doesn't switch the diverter (I'm guessing it powers the appropriate coil but given it's already now facing that way the diverter doesn't change). Option 2 was an interesting approach and looks to initially work (it auto-plunges the ball on closing the door so I can't change the diverter again) but then at the next ball plunge the diverter corrects itself.
Looking at it further the machine knows which is the left and right coil for the diverters (as per the solenoid table). On power up of the machine it will pulse one of the coils on each of the diverters (although it does vary b/n power ups as to which one is pulsed), regardless it would always knows the starting direction of both diverters. After this I believe the machine keeps track of the diverter direction in memory, as it simply toggles the direction in the memory register whenever the blue button is pressed and then fires the appropriate coil for that direction. Having the diverter direction held in memory allows the machine to determine if the diverter needs to be switched (at the next ball launch) dependent upon which rings have been obtained and is why having the coils switched around the wrong way causes the game to highlight the wrong skill shot as the memory register is opposite to the actual direction of the diverter. It also explains the behaviour in the above 2 tests
One thing I discovered back a bit in regards to the ramp switches, both sides are active during the skill shot regardless of the diverter direction as I didn't have the ramp plastic to stop airballs, the diverter was facing right but the ball launched up over the top of the diverter and landed on the wireform behind it, running down to the left micro-switch where to my surprise I was awarded points for the skill shot.
TS diverter coils (resized).JPG