Scoreboard Options 10-3
DC Trumpet Horn Installation (Externally Mounted)
Caution: Disconnect the power before installing the horn!
Refer to Drawing A-83333.
1. Locate the horn panel in the scoreboard. Refer to the component location drawings in
Appendix A. 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. Drill two
5
/
32
" holes 4" apart near the entrance enclosure.
4. Attach the horn enclosure to the inside of the scoreboard over the
5
/
32
" holes using #10
tapping screws.
5. Attach the plate assembly to the horn enclosure using the #10 hardware provided.
6. Remove the 2" knockout in the horn panel.
7. Drill two
7
/
32
" holes on either side of the knockout using the template drawing A-83502. If
no knockout exists, use the template to drill one
3
/
8
" hole and two
7
/
32
" holes in the panel.
8. Thread the two gray wires form the horn through the top of the mounting angle.
9. Attach the horn to the mounting angle using the #10 hardware provided
10. Insert the bushing into the
3
/
8
" hole in the mounting angle.
11. Attach the horn/angle assembly to the panel over the 2" knockout and
7
/
32
" holes using the
#10 hardware provided.
12. Open the panel and remove the cover from the horn enclosure.
13. Use the wire nuts provided to 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.
14. Connect the wires with a white plug to the mating jack marked HORN on the left side of
the entrance enclosure.
15. Close and secure the access panel.
16. Connect to power to the scoreboard.
17. Connect the control console to the scoreboard.
18. Test the horn by pressing the key labeled HORN on the control console.
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