Daktronics BA-1018-11, Инструкция по установке, эксплуатации и техническим характеристикам

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Replacing a Digit
The digit circuit board, the platform for the LEDs, is mounted to the back of the digit panel. Do not
attempt to remove individual LEDs. In the case of a malfunctioning board, replace the entire digit
panel.
To remove a scoreboard digit,
follow these steps:
1. Open the digit panel as described in the preceding section.
2. Disconnect the power/signal connector from the back of the digit. Release the connector by
squeezing together the locking tabs as you pull the connector free.
3. The digits are secured to the inside of the panel with screws, standoffs (spacers), and nuts.
Remove the #8 nuts and lift the digit off the screws.
4. Position a new digit over the screws and tighten the nuts.
5. Reconnect the power/signal connector.
K
Note: This is a keyed connector
B
it will attach
in one way only. Do not attempt to force the connection!
6. Close and secure the digit panel and test the scoreboard.
Replacing a Driver
Drivers are typically mounted inside the scoreboard and immediately behind a digit, but location
and mounting varies with the model of the scoreboard. Refer to the
component locations drawings
in Section 4 for the location of your scoreboard driver. Note that drivers for scoreboard BA-515-11
can be reached by removing a back panel (rear access); all other scoreboards in this manual are
front-accessible.
Each driver is enclosed with a transformer and signal terminal block. Before a failed driver can be
reached, the enclosure must be accessed. Follow these steps:
1. Open the digit panel or scoreboard face panel as described in Section 8.2 .
2. Remove the cover from the driver enclosure.
3. Disconnect all connectors from the driver. Release each connector by squeezing together
the locking tabs as you pull the connector free.
K
Note: When reconnecting, remember that
these are keyed connectors and will attach in one way only. Do not attempt to force the
connections.
4. Remove the screws, nuts, or wing nuts securing the driver to the inside of the enclosure.
5. Carefully lift the driver from the display and place it on a clean, flat surface.
6. Follow steps 1 through 5 in reverse order to attach a new driver.
8.3 Schematic
Reference Drawings:
Schematic; 8 and 16 Col. O.D. LED Drvr and TNMC............................. Drawing A-141797
Schematic; 1 Driver................................................................................. Drawing A-141799
Schematic; 1 Driver w/TNMC.................................................................. Drawing A-141806
Schematic; 2 Drivers............................................................................... Drawing A-141807
Schematic; 3 Drivers............................................................................... Drawing A-142358
Drawing A-141797 is the schematic diagram for the 8- and 16-column drivers used in the outdoor
single-section scoreboards, and it also illustrates the driver for the optional team name message centers.
The other schematic drawings listed above include power and signal inputs and all wiring for the
models described in this manual. Refer to
Section 5 for a complete listing of scoreboards, their drivers,
and the appropriate schematic.
8-2 Scoreboard Maintenance
and Troubleshooting