Daktronics Galaxy AF-3200 Series, Руководство пользователя

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Section 3: 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 you will render the warranty null
and void.
3.1 Common Connectors in the Display
Figure 8: Ribbon
Cable Connector
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.
1. Ribbon Cable Connectors:
Figure 8
illustrates a typical ribbon connector. To
disconnect the ribbon cable, push the plastic clips on the
sides to unlock and remove the jack.
Figure 9: Termination
Block
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 protects both the plug
and the jack from corrosion.
2. Termination Blocks:
Termination blocks, as shown in
Figure 9
, connect internal
power and signal wires to wires of the same type coming
into the display from an external source. Most signal wires
come with forked connectors crimped to the ends of the
wire. 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.
Figure 10: Phoenix
Connector
3. Phoenix
™
-Style Connectors:
Phoenix-style connectors, usually green, allow for signal
termination on circuit boards. Refer to
Figure 10
. Strip
one-quarter inch of insulation from the wire prior to
termination. To remove a wire, turn the above screw
counter-clockwise to loosen the connectors grip on the
wire. To insert a wire, push the bare wire into the
connector and turn the above screw clockwise to lock the
wire into place.
Electrical Installation
3-1