Space shuttle pinball setup

So I got my pinball all hooked up.  Sound doesn't work, but I did a of cleaning up.




















Already replaced the incadescent bulbs with LED's:

Sound still isn't working, all the rom chips there:

Also there's some corrosion on this board towards the top:

I've noticed that sometimes the LED versions of the #44 bulbs don't want to fit in correctly, but if I lightly squeeze them with a wrench, it fits better