Daktronics Valo Digital Billboard - Manual (Page 21)

Removing Modules from the Display 13
5. Disconnect the module power and signal cables. Refer to Figure 7.
6. Attach one end of the safety lanyard to a lanyard attachment ring on the module. Attach
the other end of the safety lanyard to a nearby upright or wire rod. Use the safety
lanyard in this way to prevent module damage.
7. Use a T-handle Allen wrench to disengage module latches.
8. Carefully push the module out of the display face.
9. Pivot the module to pull it through the back of the display. Refer to Figure 8.
10. Reverse Steps 1-9 to reinstall the module.
20 MT and 23 MT Module Removal
23 and 23 MT modules are square. Typically, modules should pull through the display face
with the same ease no matter the direction.
Removing the Rear Access Display Door
1. Determine which door needs to be removed to best access the module.
2. Lift the access door straight up.
3. Pull the bottom of the display door away from the back of the display.
4. Carefully place the access door out of the way.
Unobstructed 20 MT or 23 MT Module Removal
1. Disconnect power and signal cables.
2. Attach one end of the safety lanyard to a lanyard attachment ring on the module. Attach
the other end of the safety lanyard to a nearby upright or wire rod. Use the safety
lanyard in this way to prevent module damage.
3. Use a T-handle Allen wrench to disengage module latches.
4. Carefully push the module out of the display face.
5. Pivot the module to pull it through the back of the display.
Note: Sometimes it may be necessary to remove the module beside, above, or below in
order to access the target module.
Removing a 20 MT or 23 MT Module behind a Power Supply
1. Remove the 5 /
16
" TEK screw that holds the power supply bracket in place.
2. Pull the finger tab to disengage the power supply. Refer to Figure 12 for an illustration of
the power supply.