Daktronics LED Aquatics/Track Displays SW-2000 Series 10 Numeric Digit - Manual (Page 28)

22 Maintenance and Troubleshooting
Output connectors 1 through 16 each have nine pins. Pin 7 provides power to the
digit or indicators wired to that connector. The other eight pins provide switching
connections. The electrical specification drawings for each of the models in the SW-
2000 Series, shown at the beginning of this section, specify the driver connectors
controlling the digits. Numbers on each digit indicate which connector is wired to
that digit. Scoreboard model numbers are shown on the lower left side of each
drawing.
4.3 Segmentation
Reference Drawing:
Digit Service ........................................................... Drawing A-130891
In each digit, certain LEDs always go on and off together. These groupings of LEDs
are referred to as segments. Drawing A-130891 shows which connector pin number
is wired to each digit segment and the wiring color code used throughout the display
(illustrated at the lower left corner of the drawing).
4.4 Component Location and Access
Reference Drawings:
Electrical Hookup, Indoor Display, 120 V .............. Drawing A-130661
Electrical Hookup, Indoor Display, 230 V .............. Drawing A-130676
Digit Service ........................................................... Drawing A-130891
Drawings A-130661, A-130676, and A-130891 show front views of display
modules. The digit circuit board, the platform for the LEDs, is mounted on the front
panel in each section. The panels are easily removed for front access.
The drivers are located on the left side of each module (typically behind the second
panel), and the load center, if present, is immediately to the left of the driver. The
power/signal plate used in indoor scoreboards is usually mounted on the left end of
the module cabinet.
4.5 Schematic
Reference Drawing:
Schematic; 120VAC Single Driver, Harness ....... Drawing A-1048280
Schematic; 230VAC Single Driver, Harness ....... Drawing A-1048289
Drawing A-1048280 is the schematic diagram of the power and signal inputs and all
wiring in 120VAC SW-2000 Series displays. Drawing A-1048289 is the schematic
diagram of the power and signal inputs and all wiring in 230VAC SW-2000 Series
displays.
Disconnect power before servicing the display.
Disconnect power when the display is not in use. Prolonged power-on may shorten
the life of some electronic components.