Hi guys
The problem is solved and thanks all the helpful guys that pointed me in the right direction.
Plug J107 gives power to the flash lamp circuit and the purple wires from the same plug feed power to all the solenoids (except the flippers) under the playfield. I inspected under the playfield and the solenoid that kicks the ball out into the plunger lane had a damaged wire from getting caught on the plunger when the playfield is lifted out. the damaged wire was hanging by one strand and possibly either shorting on to the frame or the solenoid was shorting within itself.
Anyway had a spare (as I have been collecting some playfields for spares) and fitted a replacement and a new F111 fuse. I ran the flasher test - all good and then ran the solenoid test - all good.
Then played a good 30 minute session with no blown fuses, let it sit for a while then another 15 minute session. No blown fuses and for the first time have played the game with flashers - love the strobing movie ones on both left and right side.
Again thanks everyone for your help.
Cheers
