AccuSport Vector Pro User Manual page 56

If you are hitting outdoors in very bright conditions, you may also adjust
the brightness numbers for each camera to read approximately 155
(+/- 3). To do this, click Options and then use the Setup Wizard.
Low Planes
Balls may not have been marked properly.
Marks too Small
To be sure that Vector Pro can read the marks on the ball, first check to
see that the two dots or line are facing the right edge of the Vector Pro
when you tee up the ball. Next run the Setup Wizard to reset focus and
brightness and recalibrate lenses.
If the ball is incorrectly marked or dirty, or if it has significant marks on
it other than the two dots or line, remark or change the ball.
No Balls Found
This message appears if none, one, or only part of a ball can be seen on
the image screen. Use the setup template to ensure that the ball was hit
at the required 14 inches from Vector Pro. If the distance is correct, use
the Setup Wizard to reset focus and brightness and calibrate the lenses.
Use the setup template to be sure that the ball was teed up in the
proper hitting area. For right handed players, this is normally inside the
right edge of the Vector Pro. For left handed players, this is normally
inside the left edge of Vector Pro.
For hitters with slow swing speeds, you can adjust the hitting position
along the target line, i.e. between one to five inches inside the right
edge of the Vector Pro, until you successfully capture a shot.
No Planes
Balls may not have been marked properly, or ball may have been placed
on the tee with marks facing away from Vector Pro.
Vector Pro User Guide v2.1 Page 56 October 2008