Sorted power supply out on my Royal Guard after it was wired the wrong way around.. thx guys.
Problem is I think I've altered something whilst fiddling around? when playing, the playfield lights keep going off and on again?
Would my novice diagnostics be correct to say it could be a dodgy contact on the tilt relay?
Dunno how you guys go on with 20+ to look after, must be a full time occupation.