Daktronics AF-3065-34-RGB - Manual (Page 17)

Electrical Installation 3-1
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 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.
Figure 11: Ribbon
Cable Connector
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 11 illustrates a typical ribbon connector. To disconnect the ribbon cable,
push the metal clips on the sides to unlock and remove the jack.
Figure 12:
Termination Block
Before replacing a ribbon cable connector, spray it with Deoxit
J contact cleaner
to remove any foreign matter that may cause signal problems. In addition, apply
a generous amount of Cal-Lube
J 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 Figure 12.
Figure 13: Phoenix
Connector
3. Phoenix
ä-Style Connectors:
Phoenix-style connectors, which are usually green, are often used for signal
termination on circuit boards. Refer to Figure 13. Strip one-quarter inch of
insulation from the wire prior to termination. To remove a wire, turn the above
screw counter-clockwise to loose 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.