Daktronics Galaxy AF-3400 20 mm Monochrome/RGB Double-face Displays - Manual (Page 52)

Parts Replacement 44
8.3 Common Power and Signal Connectors
When pulling a connector plug from a jack, do not pull on the wire or cable; pull
on the plug head itself. Pulling on the wires may damage the connector.
The power and communication signal connections in the displays use many different types of
connectors. The following information presents some common connectors encountered
during display installation and maintenance.
Ribbon Cable Connectors:
A typical ribbon connector is shown in Figure 46. To disconnect the
ribbon cable, push out the plastic clips on the sides to unlock the cable
and then 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.
Termination Blocks:
Termination blocks are commonly used to connect internal power to an
external power source. Power wires need to have one-half inch of insulation
stripped from the end of the wire prior to termination. Insert wires into
terminations and make sure the clamp holds the wire firmly. A typical
termination block is shown in Figure 47.
Phoenix ™ -Style Connectors:
Phoenix connectors, which are usually green, are often used for
communication signal termination on circuit boards. Refer to Figure 48.
Strip one-quarter inch of insulation from the wire prior to insertion. To
remove a wire, turn the corresponding screw counter-clockwise to loosen
the connector's 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.
Mate-n-Lok™ Connectors:
The Mate-n-Lok connectors found in the displays are white and
come in a variety of sizes. Figure 49 illustrates a four-pin Mate-
n-Lok connector. To remove the plug from the jack, squeeze the
plastic locking clasps on the side of the plug and pull it from
the jack.
Figure 46: Ribbon
Figure 47: One Breaker
Termination Block
Figure 48: Phoenix
Connector
Figure 49: Mate-n-Lok Connector