I get a zero reading. What about the ball in play light being illuminated and not game over before the game starts?
The 14 volts comes directly from the small transformer on the base board. I would be surprised if this is actually zero. (though it is possible if the transformer is shorted).
Can you check AC volts at the unplugged connector (J1), pins 4 and 5, to see if any volts are present.
Not really sure about the ball in play light.