Daktronics Galaxy AF-3400 20 mm Monochrome/RGB Double-face Displays - Manual (Page 35)

Maintenance
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Section 6: Maintenance
Important Notes:
• Power must be turned off before any repair or maintenance work is done on the
display.
• Qualified service personnel must make any access to internal display electronics.
• The Daktronics engineering staff must approve ANY changes made to the display.
Before altering the display, detailed drawings for the proposed modifications must be
submitted to the Daktronics engineering staff for evaluation and approval or the
warranty will be rendered null and void.
The internal components in Daktronics Galaxy ® AF-3400 series double-face displays are accessible by
removing the modules from Face A (the side with the blue dot and light sensor). The display may
need to be opened to perform maintenance or for troubleshooting. The following diagram (Figure 27)
shows the typical location of internal components. Refer to the Schematic Drawing for the specific
display size to verify component location.
Note: Power supplies are labeled A and B to denote the face of the display on which their
corresponding modules are located. In other words, power supplies labeled "A" supply power to the
modules on Face A of the display.
Figure 27: Location of Internal Components in 32 x 80 Display