Daktronics AF-3090-89-R,A - Manual (Page 30)

Maintenance &
Troubleshooting
4-5
Controller
The controller sends data to the modules. Refer to the signal summary in Section 4.3 for more
information and to the component location drawings for the position of the controller board.
Figure 21 illustrates a typical controller.
“DIP” switches are located on the controller’s MDC. The DIP switches set the hardware address,
which the software uses to identify that particular display. When replacing a controller board, be
sure to set the DIP switches in the same address configuration as the defective controlle r.
NOTE: Setting the DIP switches to address 0 (turn all the switches to OFF by flipping them
toward the printed switch numbers) can activate a test mode. The display’s power must be turned
off and then turned back on to run the test mode.
Switch
8
Switch
7
Switch
6
Switch
5
Switch
4
Switch
3
Switch
2
Switch
1
Address
Off Off Off Off Off Off Off Off Test Mode
Off Off Off Off Off Off Off On 1
Off Off Off Off Off Off On Off 2
Off Off Off Off Off Off On On 3
Off Off Off Off Off On Off Off 4
Off Off Off Off Off On Off On 5
Off Off Off Off Off On On Off 6
Off Off Off Off Off On On On 7
… … … … … … … … …
On On On On Off Off Off Off 240
Figure 21:Controller