Quoted from MeEtc:Possibly another related question, the flipper coils get excessively hot when in use for a while, I'm thinking that maybe only high power is being applied to the coils, and never switching over to low power? Do the flipper optos have something to do with this, or is it controlled only on the fliptronic board?
The colors in the manual that zaza posted are correct. You have to wire all wires to the board, as the right board is connected THROUGH the left board.
Also - for the overheating - no, the optos wouldn't cause just the high-power to be active. They just signal the flipper board when to activate the coils. Dirty optos COULD cause the transistors to leak which would cause them to get hot - but if they're hot with leafe switches, then a transistor may just be leaking.
You can tell if the Hold coil is active at all by manually trying to push the flipper down - if you do, once the EOS is opened, the Fliptronics board will re-activate the power coil, and you'll feel it.