Daktronics AF-3400-64-R,A - Manual (Page 32)

Line Filter
You can replace the filter by labeling and removing all connecting wires, and then
releasing the attachment hardware.
Figure 20: Power Term Panels
Modules and Drivers
An 8x8 module consists of louvers and two 4x8 LED display boards, each with a
driver mounted to the display board. Refer to Section 4.4 to open a display and
access the LED display boards and the drivers.
Each 4x8 LED board is a circuit board with 32 LED pixel clusters mounted directly
on it. Each LED board is removable from the 8x8 module. To remove an LED board
from the module:
Figure 21: Driver Board
1. Open the display as described in
Section 4.4.
2. Disconnect the power and signal
connector from the driver on the
LED board you wish to replace.
3. Remove the four nuts holding the
LED board to the louver assembly.
4. Remove the 5/16” nut that holds the
driver to the LED board, and gently
pry the driver from the LED board.
(A ¼” hex screw can be removed
from the front of the LED board to
remove the driver and the stand-off.)
5. Reverse the above procedure to
install a new pixel board.
Maintenance and Troubleshooting 4-4