Daktronics DistaView BA-1518-31, Руководство пользователя

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5-4 Scoreboard Maintenance
and Troubleshooting
In the scoreboard, the LED drivers perform the task of switching digits on and off.
Refer to
Drawings A-154792 and A-134371 . Each driver has 20 or more connectors
providing power and signal inputs to the circuit and outputs to the digits and
indicators. The connectors function as follows:
16-Column LED Driver
Connector No. Function
1
– 16
Output to digits and indicators
17 Power and signal input
18 Relay
19 Address
20 Protocol
Output connectors 1 through 16 each have nine pins. Pin 7 provides power (hot) to
the digit or indicators wired to that connector. The other eight pins provide switching
connections.
For the scoreboard to receive signal and function properly, the driver must be set to
the correct address. This address is set with jumper wires in a 12-pin plug which
mates with a jack on the driver.
Drawing A-288137 details the specifications for 16-
column drivers.
Address settings can be configured by using the SI dip switch. See
Drawing A-
290261 for more information. The older method using the J19 address plug is still
available. Refer to Drawing A-115078 for a listing of the wire/pin connections for
driver addresses 1 – 128.
Reference Drawing:
Segmentation, 7 Segment Bar Digit ............................... Drawing A-38532
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
5.2 specify the driver connectors controlling
the digits. Numbers displayed in hexagons in
the upper half of each digit, as shown in
Figure 6 , indicate which connector is wired
Figure 7: Digit Designation