Daktronics Galaxy AF-3200 34 mm - Manual (Page 39)

Light Sensor Replacement
If the light sensor should fail, only the circuit board needs to be replaced. To do this,
open the face panel of the display and locate the light sensor assembly on the upper
left edge of the panel door. The assembly is mounted on two screws.
To replace a light sensor circuit board (Figure 27), follow these steps:
Note: The hardware mentioned in each step is given a corresponding number in the
drawing. For instance, the nuts mentioned in step 2 are labeled #2 in the figure.
Tools required: Phillips screwdriver, nutdriver
1. Remove the nuts behind the circuit board plate, and then remove the plate
and circuit board from the assembly.
2. Remove the nuts securing the circuit board to the plate.
3. Remove the standoffs and attachment screws from the board.
4. Disconnect the four electrical wires on the sensor by unscrewing each screw
that holds a wire in place. Note the order that the wires are connected.
5. The light sensor plug on the controller does not need to be detached.
6. Reattach the new circuit board, following these steps in reverse.
Note: Align the new circuit board so that the lens lines up with the ½" circular
opening in the top edge of the face panel when the assembly is in place.
Figure 27: Light Sensor Assembly
Parts Replacement 8-6