Daktronics BA-1518-11 Multi-Section Outdoor LED Scoreboard - Manual (Page 40)

Component location varies with each scoreboard model, but drivers and power and signal
components are typically mounted inside the scoreboard behind a digit.
With a non-digit access panel, simply remove the top, side or bottom screws holding it in place.
Hinged panels swing open when the screws are loosened or removed.
Some scoreboard models make use of an interconnect panel. For those scoreboards, Drawing A-
174754, further illustrate digit designation and harness connections. Also located within this
drawing is a table listing the precise labeling of harnesses for connection to the interconnect panel
and the related driver.
K Note: Disconnect power before servicing the display! Disconnect power, too, when the display
is not in use. Prolonged power-on may shorten the life of some electronic components.
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. Refer to Drawings A-135538 and A-135662.
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 standoff bolts, spacers and nuts.
Remove the #8 nuts and lift the digit off the standoff bolts.
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 Digit Segment
Reference Drawing:
Digit; 24" 7-Seg LED................................................................ Drawing A-155644
Some larger Daktronics digits are comprised of individual segments. The digit segment 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 LED or segment, replace the entire
digit segment panel. Refer to Drawing A-155644.
To remove a digit segment, follow these steps:
1. Open the digit panel as described above.
2. Disconnect the two-pin power/signal connector from the back of the segment. 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 standoff bolts, spacers, and nuts.
Remove the #8 nuts and lift the segment off the standoff bolts
4. Position a new segment over the bolts and tighten the nuts.
Maintenance and Troubleshooting 8-2