TMS STRING PINSPOTTER OWNER’S MANUAL
400-051-010-01 Rev. Date: 7/17 Page 1-23
Pit Lights
Each pinspotter has a pit light assembly mounted to it. The pit lights are off in Standby and
come on in Bowl and Mechanics Modes. Each pit light can either shine white or “black”.
When set to black, you can select any one of the preset colors available. The decision to
shine white or a color is selectable from the control chassis SETTINGS menu. To select a
color, the black setting must be select, then press the red button on the pit light’s DMX
dimmer box until the desired color is shown. To turn on a white light for any reason (even
if the pinspotter is powered down), press the red button and hold it for approximately two
seconds.
Ball Detector
The ball detector consists of twin combination transmitter/sensor units located on the flat
surface above the under-lane ball return track between the two lanes of a pinspotter pair
just in front of the kickbacks, and reflectors located on the capping on the opposite sides of
the lanes across from the transmitters. The transmitter emits an infrared beam which the
reflector returns to the sensor. As the ball rolls down the lane, it obstructs the ball
detector's infrared light beam preventing it from being reflected back. The ball detector
then triggers, or starts, the pin detection cycle. The ball detector must be operational for
the pinspotter to function. All commands to and from the pinspotter start with the
detection of a ball.
The Pit
Located behind each lane's pin deck is the pit, which is slanted to the inside of the pair of
lanes in order to direct the ball to the ball accelerator. Above the back of the pit, hangs the
cushion, which absorbs the impact of the bowling ball.
Ball Accelerator
When the ball exits the pit area, it drops onto a pair of rails located just behind a horizontal
belt driven by a single phase AC (back end) motor that receives power from the control
chassis. The rails are pitched downward causing the ball to roll forward and under the belt.
When the ball contacts the belt, the ball is accelerated along the rails, onto a track, and
returned to the ball rack.
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