Daktronics DXB Series, Service Manual

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Control Equipment Overview, Service, and Replacement
20
Replace the Z-Filter
Required Tools: Phillips screwdriver
1� Unplug the 3-pin Mate-N-Lok power jack from the
outside of the enclosure.
2� Disconnect the power cables from both sides of the
Z-filter
3� Remove the screws that secure the Z-filter bracket to
the back of the ISP enclosure.
4� Remove the two screws that secure the Z-filter to the
Z-filter bracket.
5� Reverse Steps 1–4 to install the new Z-filter.
Replace the Heater
Required Tools: Phillips screwdriver, 5/16" nut driver
1� Disconnect the power wire to the heater.
2� Use the 5/16" nut driver to loosen and remove
the mounting plate nuts. Refer to Figure 39 .
3� Remove the heater assembly from the ISP
enclosure.
4� Use a Phillips screwdriver to remove the four
heater mounting bolts that secure the heater
to the mounting plate.
5� Reverse Steps 1–4 to install the new heater.
Replace the Fan
Required Tools: Phillips screwdriver
1� Disconnect the power wire to the fan.
2� Use a Phillips screwdriver to remove the four
fan mounting bolts that secure the fan to the
ISP enclosure.
3� Ensure the fan points upward and exhausts air
out of the ISP enclosure.
4� Reverse Steps 1–3 to install the new fan.
Figure 38: SmartLink MEID
Number
Heater
Mounting Plate Nuts
Heater
Mounting
Bolts
Heater
Mounting
Bolts
Figure 39: ISP Enclosure Heater Assembly
Fan Mounting Bolts
Figure 40: ISP Enclosure Fan Assembly