Ok, im stumped. Large number of insert lamps out on my creature. For example in the KISS lights, I get "I" fine but K,S,S wont light? I dont even know where to start here.. They are all new LED. I feel like it 1 row or column were out I can trouble shoot that line. With so many random now working I dont know where to start. Anyone have experience with something like this? The list of lights out are below.

11-17 "PAID", left jet, right jet, bottom jet

21,23,24,25,26 K,S,S, 10 million, 20 million

35,36 Right search, right video

41-43 Lips. Left Search, Left Video

45-48 Combo Award, Parking OK, Move your car, Extra Ball, Extra Ball

54-57 Hotdog, Super jackpot, Jackpot, Rescue,

65,66,68 extra ball countdown, big millions, snack attack

71-78 CREATURE

81-84 FILM

_{Post edited by brianhodgson: wrong info}

To simplify whats out, I guess its all of the pcb board lamps, which exception of 1, which is the I in KISS... Im so confused.

I had that thought also. Still nothing with regular 555's. How do I figure out the first lamp board the wires run to?

Ok, Ribbon cables didnt help. I went around and reseated the lamp boards and the connectors at the power driver board.. Nothing. Its not full rows or columns because the non-lamp board lights in each row/columns still work. Above the playfield, a few of the lights that are on the lamp board signs are out also but not all on each board, like 1 or 2 lamps on each board is out.. Makes no sense.

How do I determine the first lamp board in the chain? I assume if a connection is broken there they all wouldnt work? I could focus on one board if I could figure that out.

Wouldnt ALL of the lamp board lights be out if it were on the driver board or what am I missing?

So bit of an update. I swapped the working "I" light with a "S" light and now the "S" works and "I" doesnt.. So must be on the actual individual lamp sockets? How strange? Very strange they all must have a problem though?

I guess... I would never have imagined 35 of 39 lamp sockets would just be bad/corroded? Thanks for helping..... Ill take a closer look and see if I can salvage the sockets or if I need to get new ones.

I will check that also.. Thanks

To summarize for future searchers. I was able to fiddle with the leds and the way they sit in the sockets to get a few more to work.. I have determined im just going to replace all the sockets. I think the cause is partially corroded sockets and also the tiny wire from the led's has no tension on it so it kinda slides around and often misses the connection inside the socket but im hoping new sockets will fix it. Thanks for all the help.