Quoted from Nick_C:I believe that the tilt/hold relay should be energized on power up. When you hit the replay button, it should unlatch.
My Pioneer's Tilt Hold doesn't always latch at power on, but pressing the replay button latches it. When I turn it on it doesn't latch, if I manually close it, it stays latched.
It stays latched until the machine is tilted, then it unlatches - even when a game is not in play.
If tilted during play, ball drains, kicks out and the tilt hold latches again.
Given they are similar vintage, I'd expect the same behaviour.