Daktronics Galaxy AF-3165, Manual

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Maintenance and Troubleshooting
34
Transformer and RFI Filter
Remember: Disconnect power before servicing any internal components.
Transformer
The transformer is located in the upper portion of the power termination box. To replace the
transformer, first disconnect and label all the wires attached to it.
Turn off power to the display
before removing the wires. Then release the hardware securing it to the inside of the enclosure.
Position the new transformer in its place, and tighten it down. Re-connect all the wires using the
display’s schematic as a reference.
RFI Filter
The RFI electrical filters are mounted above and to the side of the power termination box (Z1 and Z2
in
Figure 35 above). Like the transformer, the filters can be replaced by first removing all connecting
wires, then releasing the attachment hardware. Install the new filter using the display’s schematic as a
wiring reference.
Figure 33: Power Termination Box