Daktronics KE-1010-7.6-RG - Manual (Page 29)

To replace a controller:
1. Disconnect the 120 VAC power to the master section.
2. Remove the face panel per Section 4.1.
3. Remove the two LED modules on
the right end of the master section
per Section 4.2. Refer to the
Component Layout Drawings for
the location of the display controller
in each ticker display.
Maintenance &
Troubleshooting
4-5
4. Remove all power and signal
connections to the controller.
5. The controller is attached to the
inside of the display with four #6-32
hex-head screws. Remove the
attaching screws (refer to
Figure 20 ), and carefully lift the controller from
the display.
Figure 20: Removing the Controller
6. Follow the previous steps in reverse order to attach a new controller. Refer
to the appropriate display Schematics for wiring information.
Note: Be sure to set the new controller’s address to the same settings as the one it is
replacing.
4.3 Controller Address
The controller has a set of “DIP” switches on the controller as shown in Figure 19 .
These switches set the hardware address. When replacing a controller board, be sure
to set the DIP switches in the same address configuration as the defective controller.
Note: DIP Switches 1-4 are for addressing, switch 7 enables test mode, and 5,6,8 are
not used.
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 0
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 On On On Off 14
Off Off Off Off On On On On 15
Off On Off Off Off Off Off Off Test Mode