Have a friend with a jp. Dinosaur moves all the way to the left with flipper button in test mode, but can't get him to move back to the right. He goes up and down, jaw moves. I looked at the wiring, nothing broken off, diodes in place.
In test mode, shows the left switch is on, whihj makes sense since he all the way left and switch is engsged. everything else is off.
Not familiar with the game, where do we start?