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VPS Chassis
Figure 3. Rear of VPS Chassis
The function of the components on the VPS I/O PCB are:
The VPS Chassis uses two printed circuit boards to accomplish the functions
of the VPS: the Logic PCB and the I/O PCB. All system cables are connected
to this board through external connectors located on the rear of the chassis.
Refer to Figure 3 for explanation of connections on rear of VPS chassis:
(1) Ball/Foul (J7) - Signals from the foul unit and left and right lane ball
detectors enter the PCB through this connection.
(2) Left I/O (J5) - Connection for signals coming from the left (odd)
pinsetter. Signals for the “take data” and 0° switches, second ball, and
New Pins Solenoid control connect to the PCB here.
(3) LLAN In (J3) - Connection for all LLAN communications to and from
the I/O PCB located in the LGP. The VPS sends scores and recieves no
tap and 3rd ball 10th frame, and pinsetter on/off information through
this connection.
(4) LLAN Out (J2) - Connection that allows the LLAN communication to
continue to other devices on the lane pair. Typically, the TV-only
monitor, Bowler Track, and/or an Instant Replay are connected to
LLAN via this connector.
(5) Power (J9) - Connection for power input to the VPS. The 28VAC used
to power the VPS originates at the Secondary Transformer.
Video Pinsensing System 5