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Electrical Installation
3-1
3:
Section
Electrical Installation
Only a qualified individual should terminate power and signal cable within 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
Figure 10: Termination
Block
1. Ribbon
Cable
Connectors:
on the right
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.
2. Termination
Blocks:
Termination blocks are usually 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. Tighten all screws firmly to ensure
a good electrical connection. Refer to
on the right.
Содержание Galaxy AF-3155
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