Daktronics G-100-7.6-R - Manual (Page 24)

Figure 16: Power Supply Cable Connections
4.3.3 Display Controller
The display controller is mounted to the rear of the display cabinet in the lower left
corner (2 line displays have the controller located in the upper left side). The
controller receives information from the computer, interprets it and activates the
appropriate LED’s on the display.
Maintenance and Troubleshooting 4-4
The
display controller also has a set of eight (8) switches (located on the left side of the
controller) by which an address can be set using standard binary code (refer to
Section 4.4). Refer to Section 1.5 for information on sign addressing.
Figure 17: Display Controller; Front View
To replace a failed controller:
1. Disconnect all attached cables. Take note of their orientation.
2. Remove all #6 connecting screws. If the address switches are used, take note of
the switch configuration and set the same address on the new controller.
3. Attach the new controller using #6-32 screws.
4.3.4 Modem
If a modem was ordered with the display, it will be mounted inside the display
cabinet, near the controller. The modem is used in lieu of a direct communication line
with the computer.
The modem is held in place with the use of plastic rails known as a “snap track.” To
replace a failed modem, disconnect all attached cables and carefully “snap” it out of
the rails. Insert the new modem by first laying one end into the rails of the “snap
track,” then pivot it up and snap into place.