In each digit, certain LEDs always go on and
off together. These groupings of LEDs are
referred to as segments. Drawing
A-38532 illustrates digit segmentation. It also
details which connector pin is wired to each
digit segment and the wiring color code used
throughout the display.
Figure 15: Digit Designation
The component locations drawings in Section 4
specify the driver connectors controlling the
digits. Numbers displayed in hexagons in the
upper half of each digit, as shown in Figure 15,
indicate which connector is wired to that digit.
The lower number in the square indicates
nominal digit size.
8.6 Lightning Protection
The use of a disconnect near the scoreboard to completely cut all current-carrying
lines significantly protects the circuits against lightning damage. The National
Electrical Code also requires the disconnect. In order for this system to provide
protection, the power must be disconnected when the scoreboard is not in use. The
control console should also be disconnected from power and from the signal junction
box when the system is not in use. The same surges that may damage the
scoreboard’s driver can also damage the console’s circuit.
8-6 Scoreboard Maintenance
and Trouble Shooting
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