System information

press it against the back board until it is fully seated. Turn the retaining
latches back over the spider to secure the assembly in place.
14. Double check the tail position (toward the connector on the side of the
cabinet). Make sure the top 12 o’clock double segment is black and
aligned straight up. Remove the assembly and make any adjustments if
necessary.
15. If all alignment is correct, reinstall the catch web with the four screws
provided. Installation is now complete.
It is important to keep dirt and foreign material out of the area between the
spider and segments as non-scoring or improper scoring can result. On
heavily played machines, it is a good idea to disassemble and clean the dart
heads regularly. Following this suggestion will prevent service calls between
scheduled visits.
Missed Dart Detector
The Black Widow has the ability to detect darts that miss the dart head and
strike the surrounding web. Mounted behind each web is a vibration sensi-
tive piezoelectric switch circuit board. The wire harness connector for the
switches plug into a matching connector on the side of the cabinet, just
above the connector for the switch matrix.
If the Missed Dart Detector detects a hit anywhere on the web face, the
machine will record a dart thrown and no score will be given.
There is a small sensitivity adjustment pot on the circuit board assembly.
Turning it clockwise will increase the sensitivity and counter-clockwise will
decrease the sensitivity. This is a single revolution pot, there are no
stops when turning it. One complete revolution brings the setting back to
the same point; therefore, adjustments should be made in one tenth revolu-
tion increments.
Technical Description
T2.13