Daktronics BLD Series, Service Manual

Page: 25 / 34

Control Equipment Overview, Service, and Replacement
21
Replace the SmartLink
TM
(Optional)
1� Turn off the SmartLink
TM
breaker
in the power entrance box.
2� Wait for all LEDs in the
SmartLink
TM
to turn off. This
may take up to 8 minutes. The
extended time is required to
discharge components that
typically send a notification to
the data center in the event of
a power outage.
3� Disconnect the incoming
power wires in the SmartLink
TM
.
4� Disconnect the outgoing
power wires from the relays (R1, R2, R3, R4).
5� Disconnect the RS232 cable and remove any
cable ties securing it within the SmartLink
TM
.
6� Remove the four screws that secure the
SmartLink
TM
to the mounting plate.
7� Reverse Steps 1–6 to install the new
SmartLink
TM
.
8� Call Daktronics help desk and provide
them with the new MEID number, circled in
Figure 38 .
Replace the Heater
Required Tools: Phillips screwdriver, T20 Torx driver
1� Disconnect the power wire to the heater.
2� Use the T20 Torx driver to loosen and remove
the mounting plate screws. 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.
Figure 37: SmartLink
TM
Relay Bank
Figure 38: SmartLink
TM
MEID Number
Mounting Plate Screw
Heater
Mounting
Bolt
Heater
Mounting
Bolt
Figure 39: ISP Enclosure Heater Assembly