I have six bulb circuits that are out. I verified that it is not the bulbs. The six outages appear to be unrelated. From looking at the Lamp Driver schematic the bulbs are J1-14 (red arrow), J1-16 (red KISS amber arrow), J3-26 (red "S" -left), J3-19 (yellow "S"-left), J3-27 (Yellow KISS amber arrow) and J3-24 (right out special). I verified all bulb sockets are fine and wire is soldered with a good connection. Any things to look for right off the bat before changing transistors? Any help is greatly appreciated. I was thinking of swapping the lamp driver board from another machine and see if that fixes it. That would indicate it IS a board issue and not wiring.

I will check that later this evening and report back. I was curious if there were known issues since the only lights out are on this assembly.

I am planning on reflowing them today after work. I will post updates. I verified that the KISS lights that were not working was due to Q6 on the aux lamp board. Parts are on order from Steve. So the 6 lights are my only issues left.

Partial good news. The one transistor I verified died was replaced and the aux lamp board works perfectly with the KISS chase lights. Unfortunately I just reflowed the connectors on the Lamp driver board and it made no change to my lights that are not working. These are: The six outages appear to be unrelated. From looking at the Lamp Driver schematic the bulbs are J1-14 (red arrow), J1-16 (red KISS amber arrow), J3-26 (red "S" -left), J3-19 (yellow "S"-left), J3-27 (Yellow KISS amber arrow) and J3-24 (right out special).

Well, I found a guy selling a Lamp driver board that was tested and worked 100%. I got the board for $50 including shipping. I swapped it out and every one of my light issues are now working fine! and I can replace the parts and have the old board as a spare.
He was a real nice guy. So now I just have to restore some cabinet damage touch up the playfield and then repaint the cabinet and then it is off to its new owner. Thanks everyone!