Quoted from golfergordy:
No, the lights don't blink off & on, They work like they should, except that they might be completely dark, or dim, or normal in brightness, and this condition changes during the game. I played a few games just now while I'm writing this and here's what I experienced: The 4-insert lights at the top of the pf for scoring a skillshot upon initial plunge of each ball, were all dark. I could still score the skillshot because I know which of these lights should be lit for the initial plunge for each ball even though they were all dark. After the ball gets into the main pf area it's nearly impossible to know which of these insert lights is supposed to be lit because it changes every time you hit the left flipper button. As you know, every time the ball goes thru the lane beneath each of these lights it turns the light on (if it's off) and when all 4 lights are lit the bonus multiplier increases by one. Anyway, these lights remained dark for the entire game that I played so I couldn't tell which lights I needed to turn on for the bonus multiplier. I then played a 2nd game and at first these 4 lights were still dark, but after a few seconds the lights started working correctly. For the remainder of the game, these lights would go off (dark) and stay that way for maybe 15-30 seconds, and then start working again like they should with normal brightness, and then after another 15-30 seconds they would all go dark again, and alternate that way for the rest of the game. I then played a 3rd game and the lights all acted normally, with normal brightness for the entire game, as if it took them 2-games to warm up. This has been the pattern for several days now and I'm wondering what I should start checking out to solve this problem. I have previously had problems with lights that change from off to on (or vise versa) depending on game conditions, but these problems were on old Bally & Williams games, and replacing a transistor was usually the solution, but I'm a novice with the modern Stern games. Any suggestions are greatly appreciated.
I agree with the others that is sounds like a loose/faulty connection.
Also, you probably already know, but just wanted to point out that there are several Skill Shots in Deadpool, not just the top lanes... while holding in the left flipper to get a "full" plunge, with the "easiest" being the Katana Ramp skill shot.