Daktronics BA-1518-11, Инструкция по установке, эксплуатации и техническим характеристикам

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When installing a module, reverse the previous steps, taking note of the following conditions:
+ Weatherstripping on the back edge of the module must be intact and in good condition if it is
to prevent water from seeping into the display.
+ Module latches must be fully engaged to create a watertight seal around the edge of the
module. The module should be firmly seated against the display when the latches are fully
engaged.
Each module assembly contains a module housing (containing LEDs and the driver board) and a
louver assembly.
Drawing B-126111 and B-126112 illustrate the various module components.
From time to time, it may become necessary to remove one or more parts form the module housing for
repair or replacement. The following subsection explains how to disassemble a module.
Removing the Louver Assembly
Damaged louvers may reduce the brightness and contrast of this display. If any of the louvers on
the display are broken or damaged, replace the entire louver assembly. Refer to the Replacement
Parts List in
Section 9.9 . When replacing the louver assembly, take care not to strip the plastic
twist-on fasteners.
Removing/Changing a Louver
Complete the following steps to remove the louver assembly from the face of the module.
1. See the directions above in the Module and Drivers subsection for information on how
to access the louver from the front or rear.
2. Remove the five twist-on fasteners holding the louver assembly to the module with an
11
/
32
" nut driver.
3. Lift the louver assembly straight away from the module.
Power Supplies
The LED power supplies are identified as assembly 0A-1213-4013 in the component location
drawings.
Removing/Changing a Power Supply
Complete the following steps to remove a power supply from the display:
1. See the directions above in the Module and Drivers subsection for information on how
to access the component from the front or rear.
2. Disconnect all the wires connected to the power supply.
3. Remove the hardware holding the power supply in place to free the unit.
4. Follow these steps in reverse order to install a new power supply.
Weatherstripping
To ensure that the display is waterproof, weatherstripping has been provided around the entire
display and around each module. It is important that the weatherstripping is installed properly at all
times or water may leak into the display and damage the components.
TNMC Maintenance
9-7