Daktronics AF-3400-64-R,A - Manual (Page 31)

4.4 Display Access
Display access for all 64mm displays is from
the front. To open the display:
Figure 19: Removing a Module
1. Locate the four screws that hold the
module in place. Two are on top of
the module and two are on bottom of
the module.
2. With a #2 Phillips screwdriver, loosen
the four screws as shown in Figure
19. The screws are part of the module
and will not be removed.
3. Interior display components may be
accessed, or the module driver or LED
board may be removed from the
module itself.
When closing a display, reverse the previous
steps and take note of the following points:
• The weather-stripping on the back edge of the module is intact and in good
condition for preventing water from seeping into the display.
• The module screws are tight to create a water resistant seal around the edge
of the module. The module must be firmly seated against the display to shed
water.
4.5 Service and Diagnostics
Reference Drawings:
Schematic; Power Supply Configurations.................... Drawing A-191636
Shop Drawings......................................................... Refer to Appendix A
The following sub-sections address servicing of the below display components:
• Line filter and ground bar
• Modules, drivers, and power supplies
The sub-sections also address any diagnostic LEDs, fuses, and signal/power
connectors found on the components.
The Shop Drawings denote the components as follows:
Component… Denoted As… Location…
Modules 0A-1308-0002 or
0A-1308-0003
Over entire face of the display
Power Supplies 0A-1307-0500
0A-1307-0501
0A-1307-0502
0A-1307-0503
0A-1307-0511
0A-1307-0512 Behind the modules; refer to
Drawing A-191636 and the Shop
Drawings.
Maintenance and Troubleshooting
4-3