OK. Think I see where you are at.
Test point #1 on the rectifier board (BPS018) should be 5.4 VDC to supply the switched lamps, this does not go to the solenoid driver board. It goes straight to one side of each switched lamp socket. The other side of each lamp socket is controlled by the lamp driver board to enable a ground to turn on each of the lamps.
Test point #3 on the rectifier board (BPS018) should be 11.9 VDC. This goes to the solenoid driver board, to be converted to 5VDC logic power to run the games CPU.
Are you having a problem with the game running at all? or is it just a switched lamp problem?