Display Troubleshooting
23
10 Display Troubleshooting
This section provides basic display information such as power and signal routing as well as
basic troubleshooting tips for common problems. For issues not addressed in this manual,
please contact Daktronics Technical Support.
Power and Signal Routing
Understanding power and signal flow through the display can help a technician
troubleshoot an issue.
Power Routing
shows an example of how power is routed through the display.
1�
AC Power enters the display through the J-box on the rear of the display (1).
2�
Power then travels to the Power Termination Panel (2).
3�
Power is distributed to the Power Supplies (3a) and Thermostat (3b).
4�
Power leaves the thermostat and travels to the fans (4).
5�
Modules get power from the Power Supplies (5).
6�
DC Power is supplied to the Controller (6) from the Controller Power Supply.
7�
The Controller supplies power to the Light Sensor (7).
Light
Detector
J-Box
DMP
Controller PS
Thermostat
RJ45
Quick
Connect
Fans
PS
PS
PS
PS
PS
PS
PS
PS
TP
1
2
3b
3a
5
4
6
7
Figure 17:
Power Routing