Daktronics AF-3300-12-RGB/20-R - Manual (Page 30)

Maintenance and Troubleshooting 4-4
• The 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
The module and driver board are a single functional unit. Each module assembly is
made up of a module housing (containing LEDs and the driver) and a louver
assembly.
Figure 20 shows the location of several basic components inside the display. The
placement may vary slightly depending on the height of the display. Refer to this
figure for additional troubleshooting component locations.
4.5 Service and Diagnostics
Reference Drawings:
Layout, AF-3300-48x64-12-RGB/32x80-20-R ............. Drawing A-241869
Layout, AF-3300-48x48-12-RGB/32x48-20-R ............. Drawing A-241870
Schem, AF-3300-48x64-12-RGB/32x80-20-R,P/M ..... Drawing B-242469
Schem, AF-3300-48x48-12-RGB/32x48-20-R,P/M ..... Drawing B-242471
The following sub-sections address servicing of the following display components:
• transformer, RFI filter
• controller
• power supplies
The sub-sections also address any diagnostic LEDs, fuses, and signal/power
connectors found on the unit. On Component Layout Drawings the components are
denoted as follows.
Component… Denoted As… Location…
Power Term
Panel
0A-1327-0100 Behind modules A101 and A102
Controller 0A-1229-0013 Behind modules B103 and B104
Modules 0A-1266-4100 (20 mm Red)
0A-1337 4551(12 mm RGB)
Over entire face of the display A101
through B109 (includes driver)
Power Supply 0A-1327-0011 Behind module A105
Light Detector 0A-1327-3000 Above module A105