Daktronics Scoreboard Trumpet Horn - Manual (Page 7)

12 VDC Trumpet Horn Installation (LED) 1
Section 1: 12 VDC Horn Installation (LED)
Refer to Drawing B-328919 in Appendix A for general wiring details of LED scoreboard horns.
The following section describes the 12 VDC trumpet horn installation and compact horn replacement
for an LED scoreboard. Assemblies are available for both 120 and 240 VAC scoreboards.
Note: Disconnect power to the scoreboard before installing the horn!
1.1 Equipment
The trumpet horn kit consists of:
 a horn
 a metal mounting angle (trumpet horn only)
 a metal enclosure and 12 volt power plate assembly
 a horn interface card and harness
 assorted #10 screws, tapping screws, and nuts
1.2 Location
The horn entrance panel is typically located in the center of the lower half of the scoreboard
(refer to the component location drawings included in the scoreboard manual for specific
location). The horn will be mounted directly to this entrance panel. The panel may be secured
only by screws, or it may have hinges that allow it to swing open.
1.3 Horn Interface Card & Horn Plate Assembly
 If the horn kit was ordered with the scoreboard, the horn interface card and horn plate
assembly were likely installed at the factory; skip ahead to Section 1.4.
 If these components have not been installed, follow the instructions under Horn Interface
Card Installation and Horn Plate Assembly Installation.
Horn Interface Card Installation
Reference Drawings:
F.Assy: 12V DC Horn Mounting- Outdoor LED SCBD .......................... Drawing B-242731
Assy: Horn Card Installation- Gen III and IV Drivers ............................. Drawing B-302328
 Current 120 V part number: 0P-1192-0399
 Current 240 V part number: 0P-1150-0255
 Pre-2008 part number: 0P-1150-0246
Gen IV LED Scoreboards
Attach the horn interface card inside the scoreboard driver enclosure and make the proper
wiring connections from the horn interface card to the driver per Drawing B-302328, detail A.
Refer also to Drawing B-242731, left detail.