Daktronics AF-3300-12-RGB/20-R - Manual (Page 31)

Transformer and RFI Filter
Reference Drawings:
Schematic. Power Termination Panel, 1 Circuit .......... Drawing A-211950
Remember: Disconnect power before servicing any internal components
Transformer
The transformer is located in the upper portion of the primary display’s power
termination box as shown in
Figure 22 .
Turn off power to the display before removing the wires.
To replace the transformer
1. Disconnect and label all the wires attached to the transformer
2. Release the hardware securing it to the inside of the enclosure
3. Position the new transformer in its place, and replace the fastening
hardware
4. Re-connect all the wires using Drawing A-211950 as a reference
RFI Filter
The RFI electrical filters are mounted to the side of the power termination box (Z1 in
Drawing A-211950).
Figure 22: Primary Display Power Termination Box
1 Like the transformer, label all
connecting wires and then
remove them
2 Release the attachment
hardware
3 Install the new filter using
Drawing A-211950 as a wiring
reference
Maintenance and Troubleshooting
4-5