Section 3:
Electrical Installation
Only a qualified individual should terminate power and signal cable at this Daktronics
display
.
The Daktronics engineering staff must approve
any
changes made to the display. Before
altering the display, submit detailed drawings for the proposed modifications to the
Daktronics engineering staff for evaluation and approval or the warranty will be rendered null
and void.
3.1 Common Connectors in the Display
The power and signal connections in the displays use many different types of
connectors. Take special care when disengaging any connector so as not to damage
the connector, the cable, or the circuit board.
When pulling a connector plug from a jack,
do not
pull on the wire or cable; pull on
the jack itself. Pulling on the wires may damage the connector.
The following information presents some common connectors
encountered during display installation and maintenance:
Figure 9: Ribbon
Cable Connector
1. Ribbon
Cable
Connectors:
illustrates a typical ribbon connector. To
disconnect the ribbon cable, push the plastic clips on the
sides out to unlock and remove the jack.
Before replacing a ribbon cable connector, spray it with
DeoxIT
™
contact cleaner to remove any foreign matter that
may cause signal problems. In addition, apply a generous
amount of CaiLube
™
protector paste to the plug before
inserting it into the jack. This paste will protect both the
plug and the jack from corrosion.
Figure 10: One Breaker
Termination Block
2. Termination
Blocks:
Termination blocks are commonly used to connect internal
power and signal wires to wires of the same type coming
into the display from an external source. Power wires need
to have one-half inch of insulation stripped from the end of
the wire prior to termination. Insert wires in terminations
and make sure the clamp holds the wire firmly. Refer to
for more information.
Electrical Installation
3-1
