Daktronics AF-3150-20-R,A - Manual (Page 43)

Controller
The controller sends data to the modules. Refer to the signal summary in Section 4.2
for more information and to the Component Layout Diagrams for the position of
the controller board.
Figure 37 below illustrates a typical controller.
Figure 37: Controller Component Layout
The rotary switches set the hardware address, which the software uses to identify that
particular display. When replacing a controller board, be sure to set the rotary
switches to the same address configuration as the defective controller. Each
controller in a network needs a unique address.
Note: Setting both rotary switches to address 0 (set the switches to 0 by rotating
them counter clockwise until the arrow points to 0) can set a test mode. The display’s
power must be turned off and then turned back on to recognize a change in address.
The display can also be put into test mode using the software.
Complete the following steps to remove the controller from the display:
Tools required: 1/8" hex wrench and 3/16" nut driver
1. Remove the module directly in front of the controller.
2. Label the cables before removing them from the controller.
3. Disconnect power from J5.
4. Remove all signal connections from the board. Pushing apart the latches
and carefully pulling them from the jack will release the “Locked”
connectors
5. The board is held in place using six screws. Remove the screws using a
3/16" nut driver.
6. Follow the previous steps in reverse order to install a new controller board.
Maintenance and Troubleshooting
4-5