I have had all boards rebuilt recently by a trusted technician. When I flip the switch underneath, the coils for kickers and pop bumpers lock on. I switched off immediately and disconnected the second connector on the driver board. I switched on again and the game goes into attract mode and starts a game but obviously bumpers flippers and kickers are inoperable. Should I be looking on the driver board or is there something going on under the playfield? I can't see anything obvious like wires disconnected or damaged.

Yes that's right. I turned it off so quick I can't be sure if anything else was locking on but I think just pops and slings.

All except the two in line with the new 40 pin connector.

It has the right amp fuses and I flicked the power on and straight off again...then unplugged the 2nd connector on the left side of the driver board. Not taking any chances

Yep, as soon as you flick the switch they lock and off it goes before anything gets fried!

I wouldn't have thought so as long as you don't put any screws in line with the 40 pin connector. I may have damaged something on the driver board but I think there's a wiring issue somewhere that is eluding me...been trying to fix it for nearly a year without success. Also noticed one special lamp doesn't flash and the switch above the power targets tilts the game.

So plug in 2J12 and unplug 2J13? Isn't there a chance I'll damage the board even more?
I know the guy who fixed my boards does good work and he was very patient as I sent the driver board back to him three times when coils kept locking on. He is sure something's going on under the playfield that keeps damaging the transistors and ic's but even the techy that came out couldn't find a fault.

I mentioned with 2J12 disconnected you can start a game and everything works except the switch above the 3 right side targets tilts the game.

No worries

That's my guess too but I just can't find it.

It locked on straight away after getting the board back. The two other times the boards came back it worked for a while and then the top right pop bumper would lock on.

I'm hesitant to plug it back in even for a split second as there are so many coils locking on I'll do more damage to the driver board.
Can you tell me what to look for if the flippers are active in game over?

All those chips are socketed on my driver board and I've replaced all the special solenoid pia and ic chips with new ones but still locking on.

I couldn't fix it so it's at the Pinball repairer now and I'll let you know what the problems were.

Thanks, all fixed and playing great! Apparently, the 4 pop bumpers needed new diodes, caps etc and the green and grey wires were shorting. Someone had replaced a fire target and wired it wrong also...funny though as I never had a problem with them. They changed all the special transistors as they told me the guy who rebuilt the board neglected doing that and they also changed some ic's that were too fast for the game whatever that means. In summary; lots and lots of dodgy fixes and sloppy repairs over the last 40 years. She's all good now though