First off, I just want to thank you guys for helping me earlier with the issues I was having with the switches of the captive ball. Those are now working great.
I've since replaced almost all of the bulbs in the pin with LEDs save for three: the two under the red arrows and the top center arrow in the PACMAN field. I cannot figure out how to get to these lights without removing half the underside of the playfield. Is there a trick for getting to them?