Daktronics BA-1518-11 Multi-Section Outdoor LED Scoreboard - Manual (Page 61)

7. Connect to power the scoreboard.
8. Connect the control console to the scoreboard.
9. Test the horn by pressing the key labeled HORN on the control console.
DC Trumpet Horn Installation (Externally Mounted)
Caution: Disconnect scoreboard power before installing the horn!
Refer to Drawings A-128938 and A-162102 for complete installation information. With single-
section scoreboards, the external horn mounting location is above the center-most door. If the
horn is ordered with a new scoreboard, the horn power enclosure assembly (Steps 3, 4, and 5,
below) will be factory-installed, already attached to the interior back panel of the scoreboard. If
the horn is added later, attachment of the horn power enclosure assembly will be part of the
installation. In either case, the horn interconnect harness is also factory-installed and ready for
the final attachment with the horn.
1. Locate the horn panel near the top of the scoreboard. Refer to the component locations
drawings listed in Section 4. Note that there is a 2" knockout in this panel.
2. Loosen the screws securing the bottom of the panel and swing it open.
3. Note: This step and the next two are not required if the horn is ordered as original
equipment; these procedures will be completed at the factory. In the interior back panel
of the scoreboard, drill two
5 /
32
" holes 4" apart. (The holes may have been predrilled at
the factory.) These screw holes will be used to attach the horn power enclosure
assembly, so they should be located within reach of the 2" knockout in the horn panel.
Refer to the Figure 3 detail on Drawing A-162102.
4. Attach the horn power enclosure assembly to the inside of the scoreboard, using #10
tapping screws in the 5 /
32
" holes.
5. Attach the plate assembly to the horn enclosure using the #10 hardware provided.
6. Remove the 2" knockout in the horn access panel. Note that there are two 7 /
32
" holes on
either side of the knockout.
7. Thread the two gray wires from the horn through the top of the mounting angle.
8. Attach the horn to the mounting angle using the #10 hardware provided.
9. Insert the bushing into the 3 /
8
" hole in the mounting angle.
10. Place the horn/angle assembly over the 2" knockout and 7 /
32
" holes in the front panel of
the scoreboard. Attach the assembly using the #10 hardware provided.
11. Open the front panel and remove the cover from the horn enclosure.
12. Use the wire nuts provided to attach one gray wire from the horn to the black wire from
the plate assembly. Connect the second gray wire from the horn to the red wire from the
plate assembly.
13. Connect the wires with a white plug to the mating jack on the horn interconnect
harness. The interconnect cable itself extends from the jack marked HORN or J101 on
the right side of the driver enclosure.
14. Close and secure the access panel.
15. Connect to power the scoreboard.
16. Connect the control console to the scoreboard.
17. Test the horn by pressing the key labeled HORN on the control console.
TNMC Maintenance 10-3