There were a couple of issuses with the boards, the display driver board had a blown bridge rectifier and the audio board had a dry joint on one of the caps which was stopping the speaker in the cab working.

the next problem i have is there is no power getting to the opto boards. There is power leaving the driver board in the back box but no power getting to the opto boards under the playfield. I am checking for a break in the wire to the opto boards.

any way here are some photos