Daktronics Tuff Sport TN-2501, Руководство пользователя, Страница: 20 / 80

14 Electrical Installation
4.2 Power
Each scoreboard and scoreboard section features a 120 VAC power cord with a three-prong
plug. Install a grounded receptacle near the equipment so that the power cord can easily
reach it. The control console requires a 120 VAC receptacle and uses less than 1 A of power.
Displays operating on 230 VAC are also available, and they are shipped equipped with a
universal power plug.
Grounding
Connect the scoreboard to earth ground. Proper grounding assures reliable equipment
operation and protects the equipment against damaging electrical disturbances and lightning.
Daktronics recommends a resistance-to-ground of 10 ohms or less. The electrical contractor
performing the electrical installation can verify ground resistance. Daktronics Sales and
Service personnel can also provide this service. The grounding connection on the power
cord‟s three-prong plug connects to the shell of the scoreboard.
Note: The customer must properly ground the outlet according to local and national
codes. Failure to ground the outlet voids the warranty for the scoreboard.
4.3 Power-On Self-Test (POST)
The scoreboard performs a self-test each time that power is turned on and the control console
is powered off or not attached to the scoreboard. If the control console is attached and
powered on, the self-test does not run, and data from the control console is displayed on the
scoreboard after a brief period of time. Each scoreboard self-test pattern will vary depending
on the scoreboard model, the number of drivers and types of digits.
Figure 10 shows an
example of the LED bar test pattern that each digit performs.
Radio Settings
If an All Sport radio receiver is installed (see
Section ‎ 6.1 ), the radio broadcast settings (“b1”)
and the channel settings (“C1”) will be displayed
in the game/set score digits (
Figure 11 ) during the
POST. These values must match the settings in the
control console (refer to the appropriate control
console manual listed in
Section ‎ 1.1 ).
Note: Scoreboards using the RC-100 controller will only display the channel settings.
Figure 10: Digit Segment POST
Figure 11: Radio Settings in Game/Set Digits