skyraider

[Op-Bell]

ithe left hand one is n/o till the indent in the cam comes round, the micro switch then becomes n/c for an instant putting 50v to the door the button when pressed this comes back onto the coil of the pay relay thus providing a target hit and pays the remaining 8 coins

That can't be right, otherwise all you'd have to do is hold the button down and win automatically when the cam comes round. Pressing the button has to do some irrevocable action, like latching a relay, so that if you press it too early you lose. My guess is the cam routes the switch between two different relays, so that if you press when the cam isn't in position it operates one relay and you lose, but when the cam is in position it operates the other one and you win.

[mark the spark]

well its up and running  being a bank holiday here i thought i would give it my full attention.
op bell was right it was in fact 2 circuits. what was missing was 50v to the door button which was a brown wire that had come off.i think what happened is
pulling out the reel mech these wires got snagged without me noticing as they were never properly tied down,
anyway found 50v for this wire. when 3 targets are hit the little plane goes round till the button is pressed ,if you miss it   stops
 if at the right point it pays the extra 8 coins so alls working fine
 a big thanks to op bell for pointing me in the right directions

now 1 slight problem it  would be nice to get the light feature working the wire white with black tracer has come adrift from somewhere tried it with all
the available wires but no luck any suggestions!!!!
not sure but might just wire it back to the 6v terminal