The game was working pretty good. Then the Top Left / Right bonus targets stopped alternating.
I entered the machine's interior and started investigating...and cleaning...now I have a few more issues.
Game resets and starts correctly, meaning the left and right bonus steppers run back to zero position, all score reels reset, ball count goes to ball one and ball kicks out to plunger. Plunge ball and the trouble begins
As we are aware those familiar with Grand Prix - ( in five ball play mode)
The first, third and fifth (odd numbers) balls have the left bonus as the bonus point counting lane, As indicated on the playfield by the large red arrow light
The 2nd and 4th balls (even numbers) the right side bonus points counts.
The non counting bonus lane which in the case of the first ball, the right bonus lane, simply jumps back to the zero position.
1) My issue is When odd number balls are drained , the left bonus counts down and collects bonus, and the right bonus does nothing and the ball count does nothing and the ball does not kick out.
However if I remove the ball, open the game, manually move the ball count unit forward one step so the ball count light shows an even number ball in play, then close the machine and place the ball back in the out hole, everything works, the right side bonus counts down scores the bonus points, and the left lane bonus jumps directly back to the zero position, the ball kicks out to the plunger and the ball count moves to the next even number.
What makes the right bonus jump to zero position after the even ball in play drains?
2) Popbumper's not collecting points when activated and 10 point bell not ringing
3) and the original problem still exists, top left and right bonus lights not alternating
I have done extensive looking for any loose or broken wires. All switches seem to be correctly adjusted. Any help would be appreciated as I dislike making things worse....<sigh>