Daktronics WR-2101 Matside Jr. LED Wrestling Scoreboard - Manual (Page 17)

LEDs are embedded in a circuit board that is mounted to the back of the face panel. Do not
attempt to remove individual LEDs. In the case of a malfunctioning LED, replace the entire
digit circuit board.
To replace a digit circuit board:
1. Open the face panel as described in Section 4.2.
2. Disconnect the power/signal plug from the back of the digit by squeezing together
the locking tabs and pulling the connector free.
3. Use a 9 /
32
" nut driver to remove the nuts securing the digits to the inside of the panel,
and then lift the digit off the spacers and standoff studs.
4. Position a new digit over the spacers and studs.
5. Tighten the nuts.
6. Reconnect the power/signal connector.
Note: This is a keyed connector and it will attach in one way only. Do not attempt to
force the connection.
7. Close and secure the face panel, then power up and test the scoreboard to see if
changing the digit has resolved the problem.
Reference Drawings:
Address Table, 1 Through 128 ............................................................... Drawing A-115078
LED Driver, 16 Column .......................................................................... Drawing A-126174
The LED drivers perform the task of switching digits on and off within the scoreboard.
Refer to the electrical and signal specifications drawings in Appendix A to determine the
location of the driver in a particular scoreboard model. See also Drawing A-126174 for
detailed driver pin out/switch specifications.
When troubleshooting driver problems, three LEDs labeled DS1, DS2, and DS3 in Figure 4,
provide the following diagnostic information:
LED Color Function Operation Summary
DS1 Green Power Steady on DS1 will be on and steady to
indicate the driver has power.
DS2 Red Signal RX Steady on
or blinking DS2 will be on or blinking when the
driver is receiving a signal and off
when there is no signal.
DS3 Amber Status Blinking DS7 will be blinking at one second
intervals to indicate the driver is
running.