Daktronics Galaxy AF-3200 Series User manual

Galaxy®Outdoor
Series AF-3200/3400 89mm
Display Manual
ED15400 Rev 0 21 Jul
y
2005

ED15400
Product 1259
Rev 0 – 21 July 2005
DAKTRONICS, INC.
Copyright ©2005
All rights reserved. While every precaution has been taken in the preparation of this manual,
the publisher assumes no responsibility for errors or omissions. No part of this book covered
by the copyrights hereon may be reproduced or copied in any form or by any means – graphic,
electronic, or mechanical, including photocopying, taping, or information storage and retrieval
systems – without written permission of the publisher.
Galaxy®is a registered trademarks of Daktronics, Inc. All others are trademarks of their respective companies.

Table of Contents i
Table of Contents
Section 1: Introduction....................................................................................1-1
1.1 Safety Precautions .....................................................................................1-2
1.2 Network Concepts .....................................................................................1-2
1.3 Display Overview......................................................................................1-3
1.4 Component Identification..........................................................................1-4
1.5 Daktronics Nomenclature..........................................................................1-6
Section 2: Mechanical Installation.................................................................2-1
2.1 Mechanical Installation Overview.............................................................2-1
2.2 Support Structure Design...........................................................................2-1
2.3 Ventilation Requirements..........................................................................2-2
2.4 Lifting the Display.....................................................................................2-2
2.5 Display Mounting......................................................................................2-3
2.6 Optional Temperature Sensor....................................................................2-4
Section 3: Electrical Installation.....................................................................3-1
3.1 Common Connectors in the Display..........................................................3-1
3.2 Signal Termination Enclosures..................................................................3-3
3.3 Conduit......................................................................................................3-3
3.4 Preparing for Power/Signal Connection....................................................3-4
3.5 Power.........................................................................................................3-4
Grounding..................................................................................................3-5
Power Installation......................................................................................3-6
Main Disconnect........................................................................................ 3-6
3.6 Signal Termination from Computer to Sign..............................................3-6
3.7 Optional Temperature Sensor....................................................................3-7
3.8 First Time Operation .................................................................................3-8
Section 4: Maintenance and Troubleshooting..............................................4-1
4.1 Maintenance and Troubleshooting Overview............................................4-1
4.2 Display Access ..........................................................................................4-2
4.3 Signal Summary ........................................................................................4-2
4.4 Power Summary ........................................................................................4-3
4.5 Recommended Tools List..........................................................................4-3
4.6 Service and Diagnostics.............................................................................4-4
4.7 Line Filter..................................................................................................4-4
4.8 Modules, Pixel Strips and Drivers.............................................................4-4
4.9 Controller...................................................................................................4-6
4.10 Power Supplies..........................................................................................4-8
4.11 Ventilation Systems...................................................................................4-8
4.12 Thermostats ...............................................................................................4-9
4.13 Sign Maintenance......................................................................................4-9
4.14 Weather Stripping....................................................................................4-10
4.15 Troubleshooting.......................................................................................4-10
4.16 Initial Operation Information...................................................................4-11
4.17 Replacement Parts List............................................................................4-11
4.18 Daktronics Exchange and Repair and Return Programs..........................4-12

Table of Contents
ii
Appendix A: Reference Drawings .....................................................................A-1
Appendix B: Signal Converter ...........................................................................B-1
Appendix C: Optional Temperature Sensor ....................................................C-1

List of Figures iii
List of Figures
Figure 1: Drawing Label.........................................................................................................1-1
Figure 2: Version 3 Controller................................................................................................1-4
Figure 3: 8x8 Pixel Module (Front and Rear).........................................................................1-5
Figure 4: Module Numbering Example – 24x80 Front...........................................................1-6
Figure 5: Module Numbering.................................................................................................1-6
Figure 6: Typical Label ..........................................................................................................1-6
Figure 7: Lifting the Display (left; correct) and (right; incorrect) ..........................................2-2
Figure 8: Ribbon Cable Connector.........................................................................................3-1
Figure 9: Termination Block...................................................................................................3-1
Figure 10: Phoenix Connector................................................................................................3-1
Figure 11: Mate-N-Lok Connector.........................................................................................3-2
Figure 12: Fiber Optic Cable ..................................................................................................3-2
Figure 13: RJ45 Connector.....................................................................................................3-2
Figure 14: RS232/6-pin Quick Connect Jack..........................................................................3-2
Figure 15: Opening the Display for Power and Signal...........................................................3-4
Figure 16: Display Grounding ................................................................................................3-5
Figure 17: RS422 Interconnection..........................................................................................3-7
Figure 18: Opening the Display..............................................................................................4-2
Figure 19: AF-3190 Signal Flow Diagram.............................................................................4-3
Figure 20: Driver Board..........................................................................................................4-5
Figure 21: Controller...............................................................................................................4-6

Section 1: Introduction
This manual explains the installation, maintenance, and troubleshooting of the 89mm AF-
3200/3400 Galaxy®displays. For questions regarding the safety, installation, operation, or
service of this system, please refer to the telephone numbers listed on the cover page of this
manual.
The manual contains seven sections: Introduction, Mechanical Installation, Electrical
Installation, Maintenance and Troubleshooting, Appendix A, Appendix B, and Appendix C.
•Introduction covers the basic information needed to make the most of the rest
of this manual. Take time to read the entire introduction as it defines terms and
explains concepts used throughout the manual.
•Mechanical Installation provides general guidance on display mounting.
•Electrical Installation gives general guidance on terminating power and signal
cable at the display.
•Maintenance and Troubleshooting addresses such topics as removing basic
sign components, troubleshooting the sign, performing general maintenance and
exchanging display components.
•Appendix A lists the drawings included within the manual.
•Appendix B includes information about the signal converter.
•Appendix C includes information about the Optional Temperature Sensor.
Daktronics identifies manuals by an ED number located on the cover page of each manual.
For example, Daktronics refers to this manual as ED15400.
Daktronics, commonly uses a number of drawing types, along with the information that each
provides. This manual might not contain all of these drawings:
•System Riser Diagrams: overall system layout from control computer to
display, power and phase requirements.
•Shop Drawings: fan locations, mounting information, power and signal
entrance points and access method (front and rear).
•Schematics: power and signal wiring for various components.
•Display Assembly: locations of critical internal display components such as
power supply assemblies, controller boards, thermostats and light detectors.
Figure 1 illustrates Daktronics drawing label. The lower-right corner of the drawing contains
the drawing number. The manual identifies the drawings by listing the last set of digits and
the letter preceding them. In the example below, the manual refers to the drawing as Drawing
B-206146. Reference drawings are inserted in Appendix A.
Figure 1: Drawing Label
Introduction
1-1

This manual shows all references to drawing numbers, appendices, figures, or other manuals
in bold typeface, as shown below:
“Refer to Drawing B-206146 in Appendix A for the power supply wiring.”
Additionally, the manual lists drawings referenced in a particular section at the beginning of
that section as seen in the following example:
Reference Drawing:
Schem; Primary Signal, Internal, w/QC.................................... Drawing B-206146
Daktronics builds displays for long life and that require little maintenance, however certain
sign components may need replacing. The Replacement Parts List in Section 4.13 provides
the names and numbers of components that may need to be replaced during the life of the
sign. Most sign components have a white label that lists the part number. The component part
number is in the following format: 0P-_ _ _ _-_ _ _ _ (circuit board) or 0A-_ _ _ _-_ _ _ _
(multi-component assembly).
Following the Replacement Parts List in Section 4.17 the Exchange and Repair and
Return Programs in Section 4.18 refers to the instructions if any sign component needs
replacement or repair.
1.1 Safety Precautions
Important Safeguards:
1. Read and understand these instructions before installing.
2. Be sure the display and external enclosures are properly grounded
with an earth ground electrode at the display.
3. Disconnect power when servicing the display.
4. Do not modify the display structure or attach any panels or coverings
to the display without the written consent of Daktronics, Inc.
Note: This equipment has been tested and found to comply with the limits for a
Class A digital device, pursuant to part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference when the
equipment is operated in a commercial environment. This equipment generates, uses,
and can radiate radio frequency energy and, if not installed and used in accordance
with the instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is likely to cause
harmful interference. In such cases, the user will be required to correct the
interference at their own expense.
Modifications not expressly approved by the manufacturer could void the user’s
authority to operate the equipment under FCC rules.
1.2 Network Concepts
The concept of using LED displays as cost effective, high impact method of
communication is rapidly growing throughout many industries and businesses. The
reasons for this growth are many, but the need for additional features and complexity
of multiple display installations has emerged. Daktronics display systems have been
designed to meet those needs.
Introduction
1-2

Introduction
1-3
The common thread to most client requests is a means of programming and
controlling a group of displays from a central control point. Daktronics responded by
developing a powerful system of interconnecting and controlling displays. Great care
has been taken to design products that will satisfy a wide variety of installations.
Some of the design goals of these systems include the following:
•Easy transfer of messages
•The ability to tell a display or group of displays in the network which
message should run
•The ability to determine the status of any display on the network
•The ability to control multiple display technologies on the same network
There are six network systems available: RS232, RS422, modem, fiber, radio and
Ethernet. They differ on the type of physical connections needed, the distance
allowed, and equipment required. A separate manual is provided for the type of
communication method ordered with your display.
Up to 240 displays can exist on one network.
1.3 Display Overview
Reference Drawings:
Power Specs, AF-3400-(8-48X32-112)-89-A-*-* .........Drawing A-178168
Power Specs, AF-3400-(8-48X32-112)-89-R-*-*.........Drawing A-178240
Power Specs, AF-3200-(8-48X32-112)-89-RGB-*-*....Drawing A-183906
Shop Drawings.........................................................Refer to Appendix A
Daktronics 89mm, AF-3200/3400 Galaxy¨displays are designed and manufactured
for performance, reliability, easy maintenance, and long life. The pixels have an
89mm center-to-center spacing and LEDs (light emitting diodes). Each sign section
has minimum 24-inch character height. A light sensor on the front of the first display
is used for automatic dimming of the LEDs based on the ambient light levels. The
configuration of pixels depends on the model of sign ordered.
Refer to the Drawings A-178168, A-178240, A-183906 and the Shop Drawings for
the approximate size, weight, and power requirements for your model of display.
The following describes the Galaxy®model numbers: AF-3400-RRCCC-89-X
AF-3400 = Outdoor 89mm Louvered Galaxy Display
RR = Number of Rows High (8, 16, 24, 32, 40 and 48 are
available)
CCC = Number of Columns Long (32, 48, 64, 80, 96, and 112
are available)
89 = 89mm center-to-center pixel spacing
X = LED Color (monochrome red or amber are available)
A typical sign system consists of a Windows®based personal computer (PC) running
Venus®1500 software and one or more displays. Venus®1500 is a software package
that runs under Windows®98, ME™, NT®4.0, 2000, or XP Home/Professional
operating systems on an IBM-compatible computer. Refer to the Venus 1500
controller manual, ED13530, for installation and maintenance of the Venus 1500
editing station.

The displays are offered as single-face units which are single-sided, stand-alone
displays. Each display can be independently controlled and addressed, but the
controllers can be interconnected for the case of communications.
1.4 Component Identification
The following illustrations and definitions depict some of the more commonly
accessed Galaxy®sign components. Because Daktronics occasionally alters standard
design to meet customer needs, the actual display design may vary slightly from the
illustrations below.
This is only a brief overview. Refer to Section 4 for detailed information on
maintaining and troubleshooting various sign components.
Com Port: The serial connector on the back of the control computer. The COM port
controls the sign through a 9 serial connector.
Controller: The display’s controller is the “brains” of the display. The controller
receives, translates, and activates the signal information from the control computer to
the appropriate pixels on the display accordingly.
Figure 2: Version 3 Controller
Display Address: The display address is an identification number assigned to each
display of a network. Rotating the address switches on the controller sets the display
address. The control software uses the address to locate and communicate with each
display. Displays that are on the same network cannot have the same address.
Driver: The driver is a circuit board responsible for switching the intensity levels of
the LEDs. The driver is located inside the driver box and mounts on the back of the
module.
Galaxy®: Daktronics trademarked name for LED monochrome or tri-colored matrix
displays. Introduction
1-4

Latch Access Fastener: Device utilizing a rotating retainer bar to hold the module
firmly to the sign frame. There is one per module near the center of the module on
the right side.
LED (light emitting diode): An LED is a low energy, high intensity lighting unit.
Louver: Black shade positioned horizontally above each pixel row. The louvers
increase the level of contrast on the sign face and direct LED light.
Module: 89mm Galaxy®modules are 8 pixels high by 8 pixels wide. They consist of
pixel strips, louvers, and a driver. Refer to Figure 3 for identification of these parts.
Figure 3: 8x8 Pixel Module (Front and Rear)
Network: Consists of multiple signs connected to each other.
Pixel: Cluster of LEDs. The number and color of the LEDs depends on display
application.
Pixel Strip: Four LED pixels mount directly onto a pixel strip. Each pixel strip is
removable from the module. There are 16 pixel strips per module.
Power Supply: Converts AC line voltage from the load center to low DC voltage for
one or more module driver boards.
Venus®1500: Daktronics designed, Windows®based software used to create and
edit messages on the display. Refer to ED13530 for more information.
Introduction
1-5

Introduction
1.5 Daktronics Nomenclature
Figure 4: Module Numbering Example – 24x80 Front
To fully understand some Daktronics drawings, such as schematics, it is necessary to
know how those drawings label various components. This information is also useful
when trying to communicate maintenance or troubleshooting efforts.
A module is the building block of the display. Each
module measures 8 pixels high by 8 pixels wide. By
placing modules side-by-side and on top of one
another, Daktronics can design and build displays of
any size. Figure 4 illustrates how Daktronics
numbers modules on a Galaxy®display. Figure 5
breaks down the module numbering method.
Figure 5: Module Numbering
In addition, various Daktronics drawings may
contain the following labeling formats:
•“TB_ _” shows a termination block for
power or signal cable.
•“F_ _” denotes a fuse.
•“E_ _” signifies a grounding point.
•“J_ _” stands for a power or signal jack.
•“P_ _” represents a power or signal plug for the opposite jack.
Finally, drawings commonly have Daktronics part numbers. You can use those part
numbers when requesting replacement parts from Daktronics Customer Service.
Take note of the following part number formats:
•“0P-_ _ _ _-_ _ _ _” gives the form of an individual circuit board, such as a
module driver.
•“0A-_ _ _ _-_ _ _ _” represents an assembly, such as a circuit board and the
plate or bracket to which it mounts. A collection of circuit boards working
as a single unit may also carry an assembly label.
•“W-_ _ _ _” indicates a wire or cable. Cables may also carry the assembly
numbering format in certain circumstances. This is especially true of ribbon
cables.
Most circuit boards and components within this sign carry
a label that lists the part number of the unit. If the
Replacement Parts List in Section 4.17 does not list a
circuit board or assembly, use the label to order a
replacement. Figure 6 illustrates a typical label. The part
number is in bold.
Figure 6: Typical Label
1-6

Electrical Installation
2-1
Section 2: Mechanical Installation
Note: Daktronics does not guarantee the warranty in situations where the display is not
constantly in a stable environment.
Daktronics engineering staff must approve any changes that may affect the weather-tightness
of the display. If you make any modifications, you must submit detailed drawings of the
changes to Daktronics for evaluation and approval, or you may void the warranty.
Daktronics is not responsible for installations or the structural integrity of support
structures done by others. The customer is responsible to ensure a qualified structural
engineer approves the structure and any additional hardware.
2.1 Mechanical Installation Overview
Because every installation site is unique, Daktronics has no single procedure for
mounting Galaxy®displays. This section contains general information only and may
or may not be appropriate for your particular installation.
A qualified installer must make all decisions regarding the mounting of this
display.
Read both the mechanical and electrical installation sections of this manual
before beginning any installation procedures.
2.2 Support Structure Design
Support structure design depends on the mounting methods, display size and weight.
Since the structure design is critical, only a qualified individual should mount the
display. Display height and wind loading are also critical factors. It is the customer’s
responsibility to ensure that the structure and mounting hardware are adequate.
Daktronics is not responsible for the installations or the structural integrity of
support structures done by others.
The installer is responsible to ensure the mounting structure and hardware are
capable of supporting the display and agrees with local codes.
Before beginning the installation process, verify the following:
•The mounting structure provides a straight and square frame for the display.
•The mounting structure supports the display without yielding at any
unsupported points after mounting.
•Clearance: 3 " of unobstructed space is available below the display for
ventilation. 1¼" of unobstructed space is available above the top of the
display.
Correct any deficiencies before installation.

2.3 Ventilation Requirements
Reference Drawings:
Shop Drawings.........................................................Refer to Appendix A
Fans mounted in the backsheets toward the top of the display allow for ventilation.
Maintain a minimum distance of 3" (7.62 cm) below the display to maintain proper
airflow. Refer to the appropriate Shop Drawing for additional information.
If the display cabinet is completely enclosed:
•Provide 6 square inches of unobstructed opening per module to ensure
adequate cooling.
•Make allowances to compensate for the percentage of material covering the
openings in the structure.
•For adequate cooling, the cabinet may require forced ventilation. If the
enclosed cabinet must use forced ventilation, it must ventilate at a rate of 10
cubic feet per minute per module (28" x 28" active area).
Failure to comply with these requirements voids the Galaxy®display warranty.
2.4 Lifting the Display
The top of the display has eyebolts to lift the unit. Do not exceed the rated load of the
eyebolts. Refer to the information at the end of this section labeled Eyebolts to
determine the allowable load of the eyebolts shipped with the display.
Figure 7 illustrates both the correct (left example) and the incorrect (right example)
method of lifting a display. Lift the display as shown on the left, with the lifting bar.
Use every lifting point provided.
Figure 7: Lifting the Display (left; correct) and (right; incorrect)
Do not attempt to permanently support the display by the eyebolts.
If you remove the eyebolts, adequately seal the holes using 13 bolts and sealing
washers, ½ inch in size. Silicone along the threads to ensure water does not enter the
display.
Electrical Installation
2-2

Electrical Installation
2-3
2.5 Display Mounting
Reference Drawings:
Assy, Grounding and Fan Harness .............................Drawing A-175194
Schematic, AF-3400-(8-48x32x***)-89-Mono..............Drawing A-177829
Block Diag, Pwr, AF-3400-(8-48X32-112)-M-*-*..........Drawing B-175203
Shop Drawings.........................................................Refer to Appendix A
The method used to mount displays varies greatly from location to location. For this
reason the manual covers only general mounting topics.
The installer is responsible to ensure the installation will adequately meet local
codes and standards. The installer is also responsible for the mounting method
and hardware.
Before beginning the installation process, verify the following items:
•The mounting structure will provide a straight and square frame for the
display. Height variation in any four-foot horizontal section may not exceed
¼- inch.
•The mounting structure will not give way at any unsupported points after
the display is mounted.
The back of the display uses 3x2x3/8" steel clip angles at the locations shown in the
Shop Drawings. These angles assist in mounting the display. Remember to have all
mounted displays inspected by a qualified structural engineer.
The customer must have a qualified structural engineer review the number of
attachment points needed and the wall structure to ensure both meet all national and
local codes. Daktronics recommends using all clip angles as attachment points.
1. Carefully uncrate the sign. Look over each side of the display for possible
damage caused during shipping.
2. Following the guidelines described in Section 2.4, lift the display into
position on the support structure using all provided eyebolts.
3. Weld or use ½" Grade-5 bolts and hardware to secure the clip angles to the
support structure as shown in Top View in the Shop Drawing for your
display size. Refer to Section 3 for information on routing power and
signal.
4. (For Sectional Displays Only): Remove lift eyes from the bottom section.
Using all lift eyes provided, lift the top section over the bottom section.
Align the holes as required for 5/8" hardware. Secure sections using 5/8"
hardware, as shown in the Shop Drawings. Connect power and signal per
Drawings A-175194, A-177829, and B-175203. Display is then ready for
installation.
5. Upon completing the installation, carefully inspect the display for any holes
that may allow water to seep into the display. Seal any openings with
silicone. If you remove the eyebolts on the top of the sign, plug the holes
with bolts and the rubber sealing washers that you removed with the
eyebolts. Silicone the threads on the bolts.

Electrical Installation
2-4
2.6 Optional Temperature Sensor
If you have an optional temperature sensor to be used with your display, see
Appendix C for mounting and signal connections.

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

4. Mate-n-Lok™Connectors:
The white Mate-n-Lok connectors found in the
displays come in a variety of sizes. Figure 11
illustrates a five-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 11: Mate-
N-Lok Connector
5. Fiber Optic Connectors:
A fiber optic cable has a “twist-on” connector at each
end. To remove the fiber plug, push it toward the
board and twist it counter-clockwise until you can pull
the plug from the jack. Figure 12 shows this connector.
Figure 12: Fiber Optic Cable
6. RJ11/RJ45 Connectors:
RJ connectors, as seen in Figure 13, are similar to the
telephone and LAN connectors found in homes and
businesses. In order to remove this plug from the jack,
depress the small clip on the underside of the plug.
Figure 13: RJ45
Connector
Before replacing an RJ 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.
7. Quick Connect Jack:
The display uses quick connect jacks for the
connection of the signal termination enclosure, and the
temperature sensor. There are three input and one
output quick connect jacks located on the back of
the primary display, and when not used the attached
dust cover should be kept closed.
Figure 14: RS232/6-pin
Quick Connect Jack
To attach the cable to a jack, make sure to line up
the plug to match the jack, push the plug in, then
turn the outer collar to lock in place. Figure 14
illustrates the 6-pin quick connect jack.
Electrical Installation
3-2

Electrical Installation
3-3
3.2 Signal Termination Enclosures
In each communication method, the final connection will be from a provided weather
resistant enclosure to the display. For signal termination to the enclosure, see the
manual included in the box with the enclosure.
Note the following information when mounting the enclosure:
1. Be sure to mount the enclosure with the cables exiting from the bottom as to
prevent water from entering into the enclosure.
2. Mount the enclosure securely and, if possible, at a height or location
inaccessible to vandalism
3. A quick connect cable will be connected to the signal termination enclosure
and will terminate to the back of the primary display – the length of the
cable is 25 feet.
4. The quick connect cable can be run from the enclosure though 2” conduit or
through the display pole to the sign, but is no required – the cable is weather
and sunlight resistant.
Note: Daktronics engineers strongly recommend that the quick connect cable be
secured to protect it from weather or vandalism.
5. Earth ground enclosures that use wire signal cable – the resistance to
ground should be 10 ohms or less ( a grounding electrode conductor is
attached to the enclosure to make the necessary earth ground connection)
3.3 Conduit
Reference Drawings:
Shop Drawings.........................................................Refer to Appendix A
Daktronics does not include the conduit. Refer to the Shop Drawing for your display
size for approximate locations of power and signal conduit. You must use separate
conduit to route:
•Power
•Signal IN wires
•Signal OUT wires (if another sign requires signal)
Locate the conduit holes at the bottom right (rear view) of the display (refer to the
Shop Drawing for your display.)
Punch or drill out the desired conduit openings. Be careful not to damage any
internal components. Attach the conduit, and then route the power and signal cables.
For displays with more than one face, signal and temperature sensor wiring between
displays can be routed through the same conduit.

3.4 Preparing for Power/Signal Connection
Reference Drawings:
Shop Drawings.........................................................Refer to Appendix A
If the display needs openings for the power
and signal, punch out the knockouts in the
lower right corner from the rear. Refer to the
Shop Drawing for your display.
Figure 15: Opening the Display for Power and Signal
1. With a 7/32" nutdriver, apply
pressure to latch and turn it a
quarter-turn counter-clockwise. The
module door will swing open to the
left.
2. Route power to the display through
a fused disconnect switch capable of
opening all ungrounded power
conductors. Locate this disconnect
within the line of sight of any
personnel performing maintenance
on the display. If the disconnect is
located out of sight of the display, it
must be capable of being locked in
the open position.
3. Power conductors from the disconnect to the display must route through
conduit in agreement with local codes.
4. You may also route the signal cable from the control computer to the
display at this time. Be sure to run the power and signal cables in
separate conduit.
3.5 Power
Reference Drawings:
Layout, Pnl Bd, (8-48x32-112)-89mm, 1 Phase.......... Drawing A-175209
Layout, Pnl Bd,(8-48x32-112)-89mm, 3 Phase........... Drawing A-175212
Schematic, AF-3400-(8-48X32-112)-89-Mono-*-*....... Drawing A-177829
Power Spec, AF-3400-(8-48X32-112)-89-A-*-*........... Drawing A-178168
Power Spec, AF-3400-(8-48X32-112)-89-R-*-*........... Drawing A-178240
Power Spec, AF-3400-(8-48X32-112)-89-RGB-*-* ..... Drawing A-183906
Refer to Drawings A-178168, A-178240, and A-183906 for voltage and current
requirements for your display size. Each uses a 120/240VAC single-phase or
120/208 three-phase power source.
Do not connect the displays to any voltage other than that listed on the Daktronics
product label.
Proper power installation is imperative for proper display operation. The following
sub-sections give details of display power installation. Electrical installations must
be performed by qualified personnel. Unqualified personnel should not attempt to
install the electrical equipment. Serious danger to equipment and personnel could
occur if equipment is improperly installed.
Electrical Installation
3-4