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8.5 Segmentation and Digit Designation
Reference Drawing:
Segmentation, 7 Segment Bar Digit ......................................................... Drawing A-38532
60” Digit ASSY........................................................................................ Drawing A-197586
Harness Assembly Diagram; 60” Digit ................................................... Drawing A-232925
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.
The component locations
drawings in Section 4:
Component Locations specify the driver
connectors controlling the digits. Numbers
displayed in hexagons in the upper half of each
digit, as shown in
Figure 14 , indicate which
connector is wired to that digit. (The lower
number in the square indicates nominal digit size.)
For 60" digit assembly and wiring for the FB-2410 refer to
Drawings A-197586 and A-232925 .
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.
Figure 14: Digit Designation
Scoreboard Maintenance and Troubleshooting
52