Daktronics Galaxy 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 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.
1. Ribbon Cable Connectors:
Figure 9
on the right illustrates a typical ribbon
connector. To disconnect the ribbon cable, push the
plastic clips on the sides 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 9: Ribbon
Cable Connector
2. Termination Blocks:
Figure 10: Termination
Block
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 10
on
the right.
Electrical Installation
3-1