Daktronics 4000 Series Digital Billboard - Manual (Page 24)

18 R eplacing Dis play C omponents
Figure 27: Filter Release
Figure 28: Cable tie and Fan Harness
Figure 29: Fan
To replace a filter in the display:
1. Depress the filter release to lower the filter door. Refer to Figure 27.
2. Remove the filter.
3. Install the new filter.
4. Close the filter tray. Verify the filter release is in place.
4.5 Fan
Required tools: Utility knife, cable tie
1. Access the interior of the display. Refer to Section 3.2.
2. To remove a fan, first locate its 4-pin to 6-pin fan
harness. It should be zip-tied to the wire rod with
other cables. Refer to Figure 28.
3. Disconnect the fan harness.
4. To remove the fan power cable, cut the cable tie from
the wire rod. Take care not to cut through any cables.
5. Once power is removed from the fan, compress and
hold the finger guard against the fan body. Refer to
Figure 31.
6. Rotate the fan until the hook can be lifted up. Remove
the fan from the display.
7. Install the new fan.
8. Connect the fan to the fan harness. Verify the fan
works.
9. Use a new cable tie to reattach the cables to the wire
rod.
4.6 Webcam
Required tools: 1- 1 /
16
" socket wrench
R etract the Webcam Arm
1. Disconnect webcam power and signal cables from the
display.