More info on this issue......I found this disgusting surprise! The connector to the pcb for the L I E lights has been butchered a bit. Someone jumpered a wire from one side to the other. They did this so E will light-up, but using the power from L to do it. Trip L and and E will light....that's bodgy-as. Well I cut-off the jumper and E wont light anymore, and the Extra Ball target wont light now (it only ever did in attract mode). You can score extra ball from the target, and can get E, but they just dont illuminate. I did a switch edge test, and no ghost images, the switches test fine. Any suggestions?
Here is the pic of the messy connector before I cut the jumper off. You can see how they have melted the connector whilst soldering that thick wire.