Sync Camera Assembly
13
Switch Cluster
The Switch Cluster is a metal plate containing switches and cams mounted on the pinsetter’s detector so
that its nylon gear engages with the detector’s 1:1 gear. The nylon gear turns the cams which are timed
to close the switches at proper times during the pinsetter cycle. Refer to the gure titled Brunswick A-2
Pinsetter Switch Cluster.
(2)
0° SWITCH (ZERO)
(3)
B-2000 SWITCH
(NO LONGER USED)
(4)
NPS
SWITCH
(1)
ADJUSTABLE
CAM
(5)
FIXED
CAM
(6)
MOUNTING
BOLTS
Brunswick A-2 Pinsetter Switch Cluster
(1) ADJUSTABLE CAM (2) 0º SWITCH (ZERO) (3) B-2000 SWITCH (NO LONGER USED)
(4) NPS SWITCH (5) ADJUSTABLE CAM (6) MOUNTING BOLTS
NPS Switch
Although the NPS switch closes twice per pinsetter cycle, only the rst closure is needed and
used in the Sync scoring system. The rst switch closure informs the scoring system that the
pinsetter has cycled to a point where the new pin solenoid should not be energized. The cam
that actuates the switch is positioned so that it closes the switch at approximately 66° into the
pinsetter cycle or at a point where the deck is at the top of the pins.
0
o
Switch
The 0° switch closes when the pinsetter completes its pinsetter cycle. The switch closure is
used during foul and third ball, tenth frame cycles to put the pinsetter on 2nd ball.
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