Daktronics Tuff Sport Indoor LED Scoreboards - Manual (Page 26)

20 TNMC & Electronic Caption Troubleshooting & Maintenance
3.7 Display Drivers
Display drivers, also known as controllers
or shift cards, use a 12-pin plug that
mates with jack J4 to set the address.
For TNMCs, the address plug is set to 1
(221). A typical Player-Foul-Points
electronic caption for statistics displays
uses address 3 (223) while a scoreboard
with electronic captions uses address 8
(228). Pin 11 on the address plug selects
whether to show Home data (connected)
or Guest data (not connected). Refer to
Drawing A-123794 in Appendix C for
addressing information.
Note: Refer to Drawing A-3019367
for TNMC addressing information of
tennis systems with up to 12 courts.
Figure 18 illustrates some of the primary jacks and indicators of a display driver.
Diagnostic LEDs
The following table explains the functions of the primary diagnostic LEDs on the drivers:
LED Name Color Illumination Summary
DS1 PWR Green Steady on or blinking when the driver has power
DS2 RX Red
Steady on or blinking when the driver is receiving
and off when there is no current loop (CL) signal
Figure 17: Display Assembly, Top View
Figure 18: Display Driver