Daktronics AF-3090-89-R,A User Manual

1

PO Box 5128 331 32nd Ave. Brookings, SD 57006

Galaxy Outdoor

89 mm Louvered LED Signs

Series AF -3090

Installation, Maintenance &

Troubleshooting Manual

ED-13288

All trademarks are the property of their respective companies.

ED-13288
Product 1259
Rev 1 – 10 June 2002

Copyright  2002 Daktronics, Inc.

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.

Tel [phone] or 877-605-1114 Fax [phone]
www.daktronics.com e-mail: [e-mail]

i

Table of Contents

Section 1: Introduction................................................................................................... 1-1

1.1 How to Use This Manual..................................................................................... 1-1

1.2 Network Concepts.............................................................................................. 1-2

RS232 Network.................................................................................................. 1-3

RS422 Network.................................................................................................. 1-3

Modem Network................................................................................................ 1-3

Fiber Optic Network........................................................................................... 1-3

1.3 Sign 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 Sign .................................................................................................. 2-2

2.5 Sign Mounting ....................................................................................................2-2

2.6 Optional Temperature Sensor Mounting............................................................... 2-3

Section 3: Electrical Installation.................................................................................... 3-1

3.1 Common Connectors in the Sign ..........................................................................3-1

3.2 Control Cable Requirements ................................................................................3-2

RS232 .............................................................................................................. 3-2

RS422 .............................................................................................................. 3-2

Modem .............................................................................................................. 3-2

Fiber Optic ......................................................................................................... 3-3

3.3 RJ Connector Cables........................................................................................... 3-3

Installing an RJ Connector .................................................................................. 3-3

Pin Outs .............................................................................................................3-4

3.4 Conduit .............................................................................................................. 3-4

3.5 Preparing for Power/Signal Connection ................................................................3-4

3.6 Power ................................................................................................................ 3-5

Grounding.......................................................................................................... 3-5

Power Installation............................................................................................... 3-6

3.7 Main Disconnect................................................................................................ 3-7

3.8 Signal Termination from Computer to Sign .......................................................... 3-7

RS/232 ..............................................................................................................3-7

RS/422 ..............................................................................................................3-8

Modem .............................................................................................................. 3-8

Fiber Optic ......................................................................................................... 3-8

3.9 Optional Temperature Sensor Electrical Installation.............................................. 3-9

3.10 First Time Turn On...........................................................................................3-10

Section 4: Maintenance & Troubleshooting................................................................. 4-1

4.1 Maintenance & Troubleshooting Overview .......................................................... 4-1

Table of Contents

ii

4.2 Recommended Tools List ....................................................................................4-1

4.3 Signal Summary................................................................................................. 4-2

4.4 Power Summary .................................................................................................4-2

4.5 Display Access................................................................................................... 4-2

4.6 Service & Diagnostics......................................................................................... 4-3

Line Filter.......................................................................................................... 4-3

Modules, Pixel Strips & Drivers.......................................................................... 4-3

Controller........................................................................................................... 4-5

Modem .............................................................................................................. 4-6

Fiber Board........................................................................................................ 4-7

Power Supplies ...................................................................................................4-7

4.7 Optional Temperature Sensor Electrical Installation.............................................. 4-8

4.8 Ventilation Systems ............................................................................................ 4-9

4.9 Thermostats ....................................................................................................... 4-9

4.10 Sign Maintenance ...............................................................................................4-9

4.11 Weather Stripping ............................................................................................. 4-10

4.12 Troubleshooting ...............................................................................................4-11

4.13 Boot Up Initialization Information ..................................................................... 4-12

4.14 Replacement Parts List......................................................................................4-12

4.15 Daktronics Exchange/Repair & Return Programs ................................................ 4-13

Appendix A: Reference Drawings .....................................................................................A-1

Appendix B: Signal Converter ...........................................................................................B-1

Table of Contents

List of Figures

Figure 1: Drawing Label.............................................................................................................1-2

Figure 2: Controller ....................................................................................................................1-4

Figure 3: Module Numbering Example – 24x80 Front ...................................................................1-6

Figure 4: Module Numbering ......................................................................................................1-6

Figure 5: Typical Label...............................................................................................................1-6

Figure 6: Lifting the Sign ............................................................................................................2-2

Figure 7: Temperature Sensor Eave/Wall Mount ...........................................................................2-3

Figure 8: Temperature Sensor Mounting to Bottom of Display ......................................................2-4

Figure 9: Ribbon Cable Connector...............................................................................................3-1

Figure 10: Termination Block......................................................................................................3-1

Figure 11: Phoenix Connector .....................................................................................................3-1

Figure 12: Mate -n-Loc Connector................................................................................................3-2

Figure 13: Fiber Optic Cable .......................................................................................................3-2

Figure 14: RJ11 Connector..........................................................................................................3-2

Figure 15 : 6-Conductor RJ11 Connector and Cable.......................................................................3-3

Figure 16: Flipped Cable with RJ Connectors ...............................................................................3-3

Figure 17: Wire with Outer Jacket Stripped ..................................................................................3-3

Figure 18: Installation with Ground and Neutral Conductor Provided.............................................3-6

Figure 19: Installation with only Neutral Conductor Provided........................................................3-7

Figure 20: Driver Board ..............................................................................................................4-4

Figure 21:Controller ...................................................................................................................4-5

Figure 22: Modem Board............................................................................................................4-6

Figure 23: Fiber Optic Board.......................................................................................................4-7

Figure 24: Signal Converters..........................................................................................................1

List of Figures iii

1-1

Section 1: Introduction

1.1 How to Use This Manual

This manual explains the installation, maintenance and troubleshooting of the 89 mm AF-3090 Galaxy
signs. 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.

Important Safeguards:

1. Read and understand these instructions before installing.

2. Properly ground the display with a ground rod for each face, at the display location.

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.

The manual contains four sections: Introduction, Mechanical Installation, Electrical Installation, and
Maintenance & Troubleshooting.

• 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 defin es terms and explains concepts used throughout
the manual.

• Mechanical Installation provides general guidance on sign mounting.

• Electrical Installation provides general guidance on terminating power and signal cable at the

sign.

• Maintenance & Troubleshooting addresses such topics as removing basic sign components,

troubleshooting the sign, performing general maintenance and exchanging sign components.

The end of this manual contains three appendices:

• Appendix A includes the drawings referenced in this manual

• Appendix B contains information on the signal converter

Daktronics identifies manuals by an ED number located on the cover page of each manual. For
example, Daktronics refers to this manual as ED-13288.

Daktronics, commonly uses a number of drawing types, along with the information that each provides.
This manual might not contain all these drawings.

• System Riser Diagrams: overall system layout from control computer to sign, power and phase

requirements.

• Shop Drawings: fan locations, mounting informa tion, 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 sign 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 A-69945.
Appendix A contains all reference drawings.

Introduction

1-2

Figure 1: Drawing Label

This manual shows all references to drawing numbers, appendices, figures or other manuals in bold
typeface, as shown below.

“Refer to Drawing A-69945 in Appendix A for the power supply location.”

Additionally, the manual lists drawings referenced in a particular section at the beginning of that
section as seen in the following example:

Reference Drawings:

Component Placement Diagram...............................................................Drawing A-69945

Daktronics builds displays for long life and that require little maintenance. However, from time to
time, certain sign components need replacing. The Replacement Parts List in Section 4.11 provides
the names and part number of components that you may need to order 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 -XXXX-XXXX (circuit board) or 0A-XXXX-XXXX (multi-component
assembly).

Following the Replacement Parts List is the Exchange/Replacement Procedure in Section 4.11.
Refer to these instructions if any sign component needs replacement or repair.

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 multiply display installations has emerged, and
Daktronics display system have been designed to meet those needs.

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 dis play 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

Tools required for mounting the display depend on the location and size of the display. For some
installations, it may be possible to by pre-terminated telephone cables for use with the displays.

There are four (4) network systems available: RS232, RS422, modem, and fiber. Up to 240 displays
can exist one network.

Introduction

1-3

RS232 Network

RS232 (EIA/TIA-232-E) is a standard communication interface that employs a single-ended serial
transmission scheme that uses a maximum cable length of 8 meters (25 Feet). This interface was
designed for computer communication at short distances. Most computers have an RS232
communication port.

RS422 Network

RS422 (EIA/TIA-422-B) is a standard communication interface that utilizes a differential
balanced transmission scheme that uses a typical maximum cable length of 1.2 km (approximately
4000 feet). The main advantage to RS422 over RS232 is the longer cable length that is possible. A
signal converter is needed to convert the computer’s RS232 to RS422.

Modem Network

The modem is a standard communication interface that utilizes standard phone transmission lines.
The phone company assigns each phone line a number that the modem uses to communicate
between controller and display.

Fiber Optic Network

A fiber optic network is a standard communication method transmitting light (signal) through a
glass fiber. Fiber optic cable has a maximum length of 2,000 feet. A signal converter is needed to
convert the computer’s RS232 signal to fiber optic signal; a minimum of two fibers is required.

1.3 Sign Overview

Reference Drawings:
Power Specs, AF-3090, Amber LED’s………………………………….. Drawing A-158396
Power Specs, AF-3090, RED LEDs………………………………………Drawing A -162439

Shop Drawing, AF-3090, 8x**-24 Amber/Red ........................................Drawing B-160986

Shop Drawing, AF-3090, 16x**-24 Amber/Red ......................................Drawing B-160987

Shop Drawing, AF-3090, 24x**-24 Amber/Red ......................................Drawing B-160988

Shop Drawing, AF-3090, 32x**-24 Amber/Red ......................................Drawing B-160989

Daktronics designs and manufactures AF-3090 Galaxy signs for performance, reliability, easy
maintenance and long life. The pixels have an 89 mm center-to-center spacing, and light using LEDs
(light emitting diodes). Each sign section has minimum 24-inch character height. An optional
remotely mounted light sensor can automatically dim the LEDs based on the ambient light levels. The
configuration of pixels depends on the model of sign ordered.

Refer to the drawings referenced above for the approximate size, weight, and power requirements for
your model of sign.

The following describes the Galaxy model numbers: AF-3090-RRCCC-89-X

AF-3090
RR

CCC
89
X

A typical sign system consists of a Windows based personal computer (PC) running Venus 1500
software and one or more signs. Daktronics offers the signs as single-face units, which are single-

= Outdoor 89 mm Louve red Galaxy Sign
= Number of Rows High (8, 16, 24, and 32 are available)

= Number of Columns Long (32, 48, 64, 80, 96, and 112 are available)
= 89 mm center-to-center pixel spacing
= LED Color (monochrome red or monochrome amber are available)

Introduction

1-4

sided stand-alone signs. They can become double-faced by mounting them back-to-back with a second
unit.

The Venus® 1500 software controls the AF-3090 Galaxy display system. Refer to ED-12717 for
operation of the Venus 1500 controller.

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 sign 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: a connector on the back of the control computer. The COM port controls the sign through

either a 9- or a 25-pin serial connector.
Controller: The display’s controller is the “brains” of the display. The controller receives signal

information from the control computer, translates it, and activates the appropriate pixels on the display
accordingly.

Figure 2: Controller

Fiber Optic: a technology that uses glass (or plastic) threads (fibers) to transmit data from the
controller to the display. A fiber optic cable consists of a bundle of glass threads, each of which
transmits messages modulated onto light waves.

Galaxy : Daktronics trademarked name for LED monochrome or tri-colored matrix signs.
Network: consists of multiple signs connected to each other.
Power Supply: converts AC line voltage from the load center to low DC voltage for one or more

module driver boards.

Introduction

1-5

RS232: RS232 is a standard PC communication type with a maximum cable length of 25 feet (7.62
meters)

RS422: RS422 is a standard differential communication type with a maximum cable length of 4000
feet (1.2 kilometers)

Sign Address: The sign address is an identificatio n number assigned to each display of a network. It
is set by flipping DIP switches on the controller. 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.

Venus® 1500: a Daktronics designed, Windows based software used to create and edit messages on
the display. Refer to ED-12717 for more information.

Refer to Figure 2 while reading the following component descriptions.

Figure 3: 8x8 Pixel Module (Front and Rear)

Driver: 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.

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): low energy, high intensity lighting units.
Louver: a black shade positioned horizontally above each pixel row. The louvers increase the level of

contrast on the sign face and direct LED light.
Module: 89 mm Galaxy modules are 8 pixels high by 8 pixels wide. They consist of pixel strips,

louvers, and a driver.
Pixel: a cluster of LEDs. The number and color of the LEDs depends on sign application.

Introduction

1-6

Pixel Strip: four LED pixels mount directly onto a pixel strip. Each pixel strip is removable from the
module.

1.5 Daktronics Nomenclature

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
Galaxy sign. 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 signs of any
size. A person can easily remove individual modules from
the sign if required. Figure 3 illustrates how Daktronics
numbers modules on a Galaxy sign. Figure 4 breaks down
the module numberin g method.

The label “A” on a drawing typically denotes an assembly.
An assembly is a single circuit board or a collection of
components that function together and usually mount on a
single plate or in a single enclosure. Daktronics divides assemblies into two types, those that route
signal and those that route power.

In addition, various Daktronics drawings may contain the following labeling formats:

• “TBXX” denotes a termination block for power or signal cable.

• “FXX” denotes a fuse.

• “EXX” denotes a grounding point.

• “JXX” denotes a power or signal jack.

• “PXX” denotes 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-XXXX-XXXX” denotes an individual circuit board, such as a line receiver.

• “0A-XXXX-XXXX” denotes 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-XXXX” denotes a wire or cable. Cables may also carry the assembly

numbering format in certain circumstances. This is especially true of
ribbon cables.

• “F-XXXX” denotes a fuse.

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 4.15 does not list a circuit board or assembly, use the label to
order a replacement. Figure 5 illustrates a typical label. The part number is in bold.

Figure 3: Module Numbering Example – 24x80 Front

Figure 4: Module Numbering

Figure 5: Typical Label

Introduction

2-1

Section 2: Mechanical Installation

LNote: Daktronics does not guarantee the warranty in situations where the sign is not constantly in

a stable environment.

Daktronics engineering staff must approve any changes that may affect the weather-tightness of the
sign. 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
signs. 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 sign.
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, sign size and weight. The structure design
is critical; only a qualified individual should mount the sign. Sign 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 sign and agrees with local codes.

Before beginning the installation process, verify the following.

• The mounting structure provides a straight and square frame for the sign.

• The mounting structure supports the sign without yielding at any unsupported points after

mounting.

• Clearance: 3 ″ of unobstructed space is available below the sign for ventilation. 1 ¼″ of

unobstructed space is available above the top of the sign.

Correct any deficiencies before installation.

Mechanical Installation

2-2

2.3 Ventilation Requirements

Reference Drawings:

Shop Drawing, AF-3090, 8x**-24 Amber/Red ........................................Drawing B-160986

Shop Drawing, AF-3090, 16x**-24 Amber/Red ......................................Drawing B-160987

Shop Drawing, AF-3090, 24x**-24 Amber/Red ......................................Drawing B-160988

Shop Drawing, AF-3090, 32x**-24 Amber/Red ......................................Drawing B-160989

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 sign to maintain proper airflow. Refer to the appropriate
shop drawing for additio nal information.

If the sign 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 sign warranty.

2.4 Lifting the Sign

The top of the sign 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 sign.

Figure 6 illustrates both the correct (left example) and the incorrect (right example) method of lifting
a sign. Lift the sign as shown on the
left, with the lifting bar. Use every

lifting point provided!

Do not attempt to permanently
support the sign by the eyebolts.

If you remove the eyebolts,
adequately seal the holes using ½­13 bolts and sealing washers.

Figure 6: Lifting the Sign

Silicone along the threads to ensure water does not enter the sign.

2.5 Sign Mounting

Reference Drawings:

Shop Drawing, AF-3090, 8x**-24 Amber/Red ........................................Drawing B-160986

Shop Drawing, AF-3090, 16x**-24 Amber/Red ......................................Drawing B-160987

Shop Drawing, AF-3090, 24x**-24 Amber/Red ......................................Drawing B-160988

Shop Drawing, AF-3090, 32x**-24 Amber/Red ......................................Drawing B-160989

The method used to mount signs varies greatly from location to location. For this reason the manual
covers only general mounting topics.

Mechanical Installation

2-3

The installer is responsible to ensure the installation will adequately meet local codes and

(Supplied by Daktronics)

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 sign. 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 sign is mounted.

The back of the sign uses 3x2x3/8″ steel clip angles at the locations shown in Drawings B -160986, B-
160987, B -160988 and B-160989. These angles assist in mounting the sign. Remember to have all

mounted signs 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 each side of the sign over for damage during shipping.

2. Following the guidelines described in Section 2.4, lift the sign into position on the support

structure using all provided eyebolts.

3. Weld or use ½O Grade -5 bolts and hardware to secure the clip angles to the support structure as

shown in Top View in Drawings B -160986, B-160987, B-160988 and B-160989.

4. Refer to Section 3 for information on routing power and signal.

5. Upon completing the installation, carefully inspect the sign for any holes that may allow
water to seep into the sign. 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.

2.6 Optional Temperature Sensor Mounting

The Temperature Sensor mounts separately
and requires a location away from the
influence of chimneys, air conditioners, vents,
tar roofs, concrete, and parking lots, which can
cause abnormal temperature fluctuations.
Usually, a separation of at least 20-30 feet
horizontally and 8 feet vertically is required to
achieve this. Locations where air movement is
restricted are also unsatisfactory. Refer to
Drawing A-79767.

Temp Sensor Housing

(Supplied by Daktronics)

Conduit Outlet Body

The ideal sensor loc ation is a north eaves or a
northern exposure, above grass and away from
direct sunlight. This location gives extra
stability and accuracy to the sensor because of

1/2” Conduit

(Supplied by Customer)

the added shading usually obtained on a
northern exposure. See Figure 7 for details.

Figure 7: Temperature Sensor Eave/Wall Mount

The second choice for locating a temperature sensor is on the display itself, or somewhere on the
display structure. A light-colored display is preferred in this application. Location of the sensor should
be above, belo w, or on a northern edge of the display to keep the sensor shaded. If mounting above the

1.0’

Mechanical Installation

2-4

display, a minimum height of above 6 feet is required. If mounting below the display, a minimum of 8

Bottom of Display

or Display Section

(Supplied by Customer)

(Supplied by Daktronics)

(Supplied by Daktronics)

feet above ground and a minimum of 1 foot between the sensor and the display is required, as seen in
Figure 8.

Greater accuracy is obtained if grass is below the sign rather than concrete or some other material.

1.0’
1/2” Conduit

Temp Sensor Housing

Conduit Outlet Body

Figure 8: Temperature Sensor Mounting to Bottom of
Display

Use a 2 pair, individually shielded cable (Belden 5594, Daktronics part number W-1234) to
connect the sensor to the display controller. Maximum length is 1000 feet.

Follow these steps to mount the temperature sensor.

1. Run ½” conduit from the sensor location to the controller where the sensor cable is to be

attached. The cable must be routed through ½” metal conduit which should be earth
grounded to protect the sensor and controller from lightning damage.

2. Power down the controller where the sensor cable is to be attached.

3. Connect the cable to the temperature sensor terminal block as shown below. (Refer to
Drawing A-79410 for the location of the terminals.)

Black = GND

White =

Green =

N
P

Red = +V

4. Install the mesh screen with the four screws enclosed.

5. Connect the cable to the display controller as described in the controller installation

manual. Power up the controller.

Mechanical Installation

3-1

Section 3: Electrical Installation

Only a qualified individual should terminate power and signal cable within this Daktronics sign!

The Daktronics engineering staff must approve ANY changes made to the sign. Before altering the
sign, 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 Sign

The power and signal connections in the signs 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 sign installation and maintenance.

1. Ribbon Cable Connectors:
Figure 9 illustrates a typical ribbon connector. To disconnect the ribbon cable,

push the metal clips on the sides to unlock and remove the jack.
Before replacing a ribbon cable connector, spray it with DeoxITJ contact

cleaner to remove any foreign matter that may cause signal problems. In
addition, apply a generous amount of CaiLube J 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 connect internal power and signal wires to wires of the
same type coming into the sign 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. Refer to Figure 10.

3. Phoenix-Style Connectors:

Phoenix-style connectors, usually green, allow for signa l termination on circuit
boards. Refer to Figure 11. Strip one -quarter inch of insulation from the wire
prior to termination. To remove a wire, turn the above screw counter­clockwise 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.

Figure 9: Ribbon
Cable Connector

Figure 10: Termination
Block

Figure 11: Phoenix
Connector

Electrical Installation

3-2

4. Mate -n-Lok Connectors:
The white Mate -n-Lok connectors found in the signs come in a variety of sizes.
Figure 12 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.

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

Figure 12: Mate­n-Loc Connector

until you can pull the plug from the jack.
Figure 13 shows this connector.

Figure 13: Fiber Optic Cable

6. Phone Jacks (RJ11 Connectors):

RJ connectors, as seen in Figure 14, are similar to the telephone connectors
found in homes. In order to remove this plug from the jack, depress the small
clip on the underside of the plug.

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.

Figure 14: RJ11
Connector

3.2 Control Cable Requirements

RS232

This cable is a 2-conductor shielded cable used to transmit an RS232 signal (Daktronics part
number W-1117). This shielded cable should not be subjected to mechanical flexing after
installation. This cable is not for direct burial and should be routed in a dedicated, grounded
metallic conduit at the base of the sign structure. This cable has a maximum length of 25 feet.

RS422

This cable is a 6-conductor shielded cable used to transmit an RS422 signal (Daktronics part
number W-1210). This shielded cable consists of unpaired wires. They should not be subjected to
mechanical flexing after installation. This cable is not for direct burial and should have one of the
following routings:

• In dedicated metallic conduit

• Inside buildings-if cable is not in conduit, keep away from interface signals

With interface signals (such as power conductors, intercom, etc.) typically a two-foot separation is
required. The maximum length of an RS422 signal cable is 4,000 feet (1.22 km).

Modem

The modem option will use standard telephone cable routed through conduit. The local telephone
company will need to assist in this installation.

Ask the telephone company which colors are used by the TIP and the RING for signal hook up.
NOTE: The telephone lines must be dedicated lines and not run through a switchboard system.

Electrical Installation

3-3

Fiber Optic

This cable is a 4-fiber cable (Daktronics part number W-1376). Two fibers are used for display
communications and the other two are saved for spares. The cable may be eithe r direct burial or
routed in conduit but should not be subjected to mechanical flexing. The maximum length of a
fiber optic cable is 2,000 feet (611.6 meters).

3.3 RJ Connector Cables

The connector used for RS/232 input to the display is
an industry standard, 6-pin RJ11. This connector can
be found on many telephones and LANs.

The cable used in the network is a standard flat six
conductor telephone cable (standard flipped cable).
Refer to Figure 15. This cable has one end that is the
mirror image of the other end (i.e. the cable is
flipped). Refer to Figure 16 for a standard flipped
cable.

Notice in Figure 16 that the color code on one connector must be made the opposite on the other
connector. When installing a network, it is not easy to remember in which direction the previous end
was oriented. One simple way to avoid confusion is to standardize the color code, having one color for
the connector going into the output of a sign and the opposite color for a connector going into the
input of a sign. This will help ensure correct cabling since cables are always installed from the output
jack of one sign to the input jack of the next sign.

Figure 15: 6-Conductor RJ11 Connector and

Cable

Figure 16: Flipped Cable with RJ Connectors

Installing an RJ Connector

Installing an RJ connector on the end of the conductor cable is a simple task when the correct
tools are used. The RJ crimping tool (Daktronics part number TH-1033) performs two separate
steps

First, use the crimping tool to strip the outer insulation from the inner
wires. This does not result in bare wires since only the gray outer
jacket is removed. After correct stripping, the wire will appear as
shown in Figure 17.

The crimping tool is then used to crimp the RJ connector onto the
cable. The RJ connector is locked into a special socket in the tool. The stripped wire is inserted
into the RJ connector. Finally, the tool is squeezed like pliers to crimp the connector onto the wire.
This completes the installation of an RJ connector onto the wire.

Electrical Installation

Figure 17: Wire with

Outer Jacket Stripped

3-4

Pin Outs

RJ11

Function

The RS422 jack’s pin out is as follows:

RJ11 Function

1 Ground
2 D1OUT-P
3 D1OUT-N

4 D1IN-P
5 D1IN-N
6 GROUND

3.4 Conduit

Reference Drawings:

Shop Drawing, AF-3090, 8x**-24 Amber/Red ........................................Drawing B-160986

Shop Drawing, AF-3090, 16x**-24 Amber/Red ......................................Drawing B-160987

Shop Drawing, AF-3090, 24x**-24 Amber/Red ......................................Drawing B-160988

Shop Drawing, AF-3090, 32x**-24 Amber/Red ......................................Drawing B-160989

Daktronics does not include the conduit. Refer to Drawings B-160986, B-160987, B-160988 and B-
160989 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 back of the sign (refer to Drawings B­160986, B -160987, B-160988 and B-160989).

Punch or drill out the desired conduit openings. Be careful not to damage any internal components.
Attach the conduit and route the power and signal cables. Refer to Drawing A-129227 for a picture of
the power and signal termination panels.

LFor signs with more than one face, signal and temperature sensor wiring between signs can route

through the same conduit.

3.5 Preparing for Power/Signal Connection

Reference Drawings:

Shop Drawing, AF-3090, 8x**-24 Amber/Red ........................................Drawing B-160986

Shop Drawing, AF-3090, 16x**-24 Amber/Red ......................................Drawing B-160987

Shop Drawing, AF-3090, 24x**-24 Amber/Red ......................................Drawing B-160988

Shop Drawing, AF-3090, 32x**-24 Amber/Red ......................................Drawing B-160989

Schematic, AF-3090-8-32x***-24, Mono................................................Drawing B-161855

Display Assembly................................................................................................Appendix A

1. If the display needs openings for the power and signal, punch out the knockouts in the lower right
corner from the rear. Refer to Drawings B -160986, B-160987, B-160988 and B-160989.

2. 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.

Electrical Installation

3-5

3. 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.

4. Power conductors from the disconnect to the display must route through conduit in agreement

with local codes.

5. You may also route the signal cable from the control computer to the sign at this time. Run the

power and signal cables in a separate conduit.

3.6 Power

Reference Drawings:

AF-3090 Controller Assembly, RS232/422.............................................Drawing A-158254

Power Specs, AF-3090, Amber...............................................................Drawing A-158396

AF-3090 Controller Assembly Modem ....................................................Drawing A-162098

AF-3090 Controller Assembly Fiber........................................................Drawing A-162099

Power Specs, AF-3090, Red LEDs.........................................................Drawing A-162439

Schematic, AF-3090-8-32x***-24, Mono................................................Drawing B-161855

Refer to Drawings A-158396 and A-162439 for voltage and current requirements for your sign size.
Each uses a 120/240VAC single-phase or 120/208 three-phase power source.

Do not connect the signs 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.

Grounding

Displays MUST be grounded according to the provisions outlined in Article 250 of the
National Electrical Code®. Daktronics recommends a resistance to ground of 10 ohms or less.
Verification of ground resistance can be performed by the electrical contractor who is performing
the electrical installation. Daktronics Sales and Service personnel can also perform this service

The display system must be connected to earth-ground. Proper grounding is necessary for reliable
equipment operation. It also protects the equipment from damaging electrical disturbances and
lightning. The display must be properly grounded or the warranty will be void.

A minimum of one grounding electrode must be installed for each display face. The grounding
electrode is typically one grounding rod for each display face. Other grounding electrodes as
described in Article 250 of the National Electric Code may be used. Daktronics recommends that
the resistance to ground be 10 ohms or less. If the resistance to ground is higher than 10 ohms it
will be necessary to install additional grounding electrodes to reduce the resistance. The
grounding electrode should be installed within 25 feet of the base of the display. The grounding
electrode must be connected to the ground terminal in the display panelboard.

This grounding electrode must be installed in addition to the equipment grounding conductor that
should be part of the power installation. The material of an earth-ground electrode differs from
region to region and from conditions present at the site. The support structure of the display
cannot be used as an earth ground electrode. The support is generally embedded in concrete, and
if in earth, the steel is either primed or it corrodes, making it a poor ground. The grounding

Electrical Installation

3-6

system and grounding electrodes must be installed according to Article 250 of the National
Electrical Code and any applicable local codes.

Power Installation

There are two considerations for power installation; installation with ground and neutral
conductors provided and installation with only a neutral conductor provided. These two power
installations differ slightly, as described in the following paragraphs:

Installation with Ground and Neutral Conductors Provided

For this type of installation, the power cable must contain an isolated earth-ground conductor.
Under this circumstance, do not connect neutral to ground at the disconnect or at the display.
This would violate electrical codes and void the warranty. Use a disconnect so that all hot
lines and neutral can be disconnected. Refer to Figure 18 for installation details. The National
Electrical Code requires the use of a lockable power disconnect within sight of or at the
display.

Figure 18: Installation with Ground and Neutral Conductor Provided

Installation with Only a Neutral Conductor Provided

Installations where no grounding conductor is provided must comply with article 250-32 of
the National Electrical Code. If the installation in question meets all of the requirements of
article 250-32, the following guidelin es must be observed:

• Connect the grounding electrode cable at the local disconnect, never at the display

panelboard.

• A disconnect that opens all of the ungrounded phase conductors should be used.

• The neutral and the ground conductors should be bonded in the display panelboard.

Refer to Figure 19 for installation details.

Electrical Installation

3-7

Figure 19: Installation with only Neutral Conductor Provided

3.7 Main Disconnect

The National Electrical Code requires the use of a lockable power disconnect near the sign. Provide a
lockable disconnect switch (knife switch) at the sign location so that all power lines can be completely
disconnected. Use a 3-conductor disconnect to disconnect both hot lines and the neutral. Mount the
main disconnect at or near the point of power supply connection to the sign. Provide a main
disconnect for each supply circuit to the sign.

You must locate the means of disconnection in a direct line of sight from the sign or outline lighting
that it controls. This requirement provides protection by enabling a worker to keep the disconnecting
means within view while working on the sign.

Exception: You may locate the disconnecting means that are capable of being locked in the open
position elsewhere.

3.8 Signal Termination from Computer to Sign

Reference Drawings:

AF-3090 Controller Assembly, RS232/422.............................................Drawing A-158254

AF-3090 Controller Assembly Modem ....................................................Drawing A-162098

AF-3090 Controller Assembly Fiber........................................................Drawing A-162099

Schematic, AF-3090-8-32x***-24, Mono................................................Drawing B-161855

RS/232

One end of the signal cable should be terminated to the 6-position terminal block on the controller
labeled “RS232 IN” (TB1). The opposite end is terminated at the J-box near the display. The
controlling computer connects to the J-box through the serial cable.

J-Box Field Cabling Terminal Block TB1 (RS232 IN)

Pin 1 (RTS)
Pin 2 (GND)

Pin 2 (RX -P) Clear Pin 3 (TX -P)

Pin 3 (GND) Shield Pin 4 (GND)
Pin 1 (TX -P) Black Pin 5 (RX-P)

Pin 6 (DCD)

Electrical Installation

3-8

RS/422

One end of the signal cable should be terminated to the 6-position terminal block in the display
labeled “RS422 IN” (TB2). The opposite end is terminated at the signal converter (Daktronics part
number 0A -1127-0237) in the control room.

Note : RS422 cable must be installed so that it is separated from any source of electrical interface.
A minimum of a two foot separation between the signal cable and any power conductors is
typically required, or the signal cable may be routed in grounded metallic conduit. The signal
cable must not be routed in the same conduit as the power conductors.

Signal Converter (J4/J5) Field Cabling Surge Supressor, TB1 (RS422 IN)

Pin 1 (GND) Red Pin 1 (GND)
Pin 2 (RX -P) Black Pin 2 (TX -P)
Pin 3 (RX -N) Brown Pin 3 (TX -N)

Pin 4 (TX -P) White Pin 4 (RX -P)
Pin 5 (TX -N) Blue Pin 5 (RX -N)

Pin 6 (GND) Green/Bare (Shield) N.C.

Modem

In a display that uses a modem, Signal In routes first to a telecommunications connector and
terminated per the table below. A 6-conductor phone cord with RJ11 connector s (part number 0A­1137-0160) relays the signal to the modem. A second phone cord (0A -1137-0160) transfers the
data from the modem to J1 (RS232 IN) on the controller.

Terminal Block TB31 Function

Pin 1
Pin 2
Pin 3 TIP-P
Pin 4 Ring-P
Pin 5
Pin 6

Fiber Optic

When the fiber optic cables are used, signal from the converter enters the fiber board (J4/J5). An
adapter module (Daktronics part number 0A -1146-0029) allows the use of a 6-conudctor-phone
cord with RJ11 connectors (par number 0A -1137-0160) to relay the signal to J1 (RS232 IN) on
the controller.

Signal Converter Field Cabling Sign A Data In

J2 (TX1) J5 (RX2)

J3 (RX1) J4 (TX2)

Electrical Installation

3-9

3.9 Optional Temperature Sensor Electrical Installation

Reference Drawings:

Temp Sensor Mounting.............................................................................Drawing A-79767

Signal Input, Venus 1500 .........................................................................Drawing A-129110

After mounting the optional sensor, follow these steps to complete the electrical installation. A 2-pair,
individually shielded cable (Belden 5594, Daktronics part number W-1234) is used to connect the
sensor to the controller.

1. Run ½ ″ conduit from the sensor location to the controller within the display. The cable must be
routed through one -foot of ½ ″ metal conduit that should be earth-grounded to protect the sensor
and controller from lightning damage.

2. Connect the cable to the temperature sensor terminal block within the temperature sensor as
follows:

Wire Color Terminal Block

Red V+

Green P

Black GND

White N

3. Install the mesh screen with the four screws enclosed.

4. Disconnect power to the display before attaching the cable.

5. Connect the cable to the temperature sensor terminal block on the controller (TB7) per the

following table:

Wire Color Terminal Bock TB7

(Temp In)

Pin 1 (+5V)
Pin 2 (GND)
Pin 3 (Light +)
Pin 4 (Light -)

Green Pin 5 (Temp +)

White Pin 6 (Temp -)

Red Pin 7 (+5V)

Black & Shield Pin 8 (GND)

Or Bare (Shield) Pin 8 (GND)

To connect the temperature sensor to multiple displays (such as a double-face display):

Wire Color Display 1 TB7 Display 2 TB7

Green

White

Red

Black

Note: GND and +5V (Red and Black) are connected from the temp sensor to the first display
only. The Red and Black wires must not be connected between controllers in additional
displays.

Pin 5 (Temp +) Pin 5 (Temp +)

Pin 6 (Temp -) Pin 6 (Temp -)

NC NC
NC NC

Electrical Installation

3-10

3.10 First Time Turn On

When first powered up, the display will run through an initialization in which it will display the
following:

1. Output Test (DDDs)

2. Product Name (Galaxy)

3. Display Size (Row x Column)

4. Firmware Number (ED-10134)

5. Firmware Revision (Rev X.XX)

6. COM1 Configuration (C1: V15/RTD)

7. COM Configuration (C2: None)

8. Line Frequency

9. Hardware Address (HW:XX)

10. Software Address (SW:XX)

11. Display Name

12. Modem (If modem is present)

Electrical Installation

4-1

Section 4: Maintenance & Troubleshooting

IMPORTANT NOTES:

1. Disconnect power before performing any repairs or maintenance work
on the sign!

2. Only qualified service personnel may access internal sign electronics.

3. The Daktronics engineering staff must approve ANY changes made to
the sign. Before altering the sign, you must submit to the Daktronics
engineering staff detailed drawings for the proposed modifications for
evaluation and approval or you will void the warranty.

4.1 Maintenance & Troubleshooting Overview

Daktronics Galaxy series AF-3090 signs are front accessible, meaning you can only access the internal
components from the front of the sign.

This section provides the following Galaxy sign information.

• Recommended Tools List: provides a listing of all tools needed in order to perform maintenance

work on your display

• Signal Routing Summaries: provide a basic explanation of the signal travel through the sign.

• Power Routing Summaries: provide a basic explanation of the power travel through the sign.

• Service and Diagnostics: provides instructions for removing various sign components and

explains the func tions of circuit board connectors and the meanings of any diagnostic LEDs.

• Maintenance: lists a number of steps to take to keep this Galaxy sign in safe, working order.

• Troubleshooting: lists some possible sign malfunctions and provides a number of possible causes

for that malfunction.

• Replacement Parts Lists: lists the part description and part number of sign components that

could possibly need replacing during the life of this sign.

• Daktronics Exchange/Repair & Return Programs: explains the Daktronics component return

policy.

4.2 Recommended Tools List

When performing maintenance work on your display, Daktronics recommends using the following
tools and placing them in a convenient, easy-access location.

— 7/32” Nut Driver: removes modules in front access displa ys
— 7/16” Wrench: removes support hardware for power supplies
— #2 Phillips Screwdriver: removes support hardware for power supplies and detaches power

supplies

Maintenance &
Troubleshooting

4-2

4.3 Signal Summary

Reference Drawings:

AF-3090 Controller Assembly, RS232/422.............................................Drawing A-158254

AF-3090 Controller Assembly Modem ....................................................Drawing A-162098

AF-3090 Controller Assembly Fiber........................................................Drawing A-162099

Schematic, AF-3090-8-32x***-24, Mono................................................Drawing B-161855

The signal routing for the display can be summarized as follows:

1. Data from the controller computer, which runs Venus1500 software, travels via RS232, RS422,

modem or fiber optic cable into the display.

2. For multiple face display or a display network, an RS422 (most typical) or fiber cable relays

signal between the controller of the first display and the controller in the second display.

3. From the controller, the signal then travels over a 40-conductor ribbon cables from the controller

(J11 through J16 provides signal out) to J2 on the driver of the first column of modules in the
display.

4. Data exists at J1 and is relayed to J2 of the next driver board and so on, traveling down the entire

row of modules. The drivers use this display data to control the LEDs.

4.4 Power Summary

Reference Drawing:

Schematic; Power Supply Configurations...............................................Drawing A-158225

Power Specs, AF-3090, Amber...............................................................Drawing A-158396

Power Specs, AF-3090, Red LEDs.........................................................Drawing A-162439

Schematic, AF-3090-8-32x***-24, Mono................................................Drawing B-161855

The following describes the internal display power routing for the display.

1. Incoming power terminates at the panelboard.

2. +12VDC power supplies power the modules in a monochrome red display and +14.7VDC power

supplies power the modules in a monochrome amber display.

4.5 Display Access

Display access for all 89 mm displays is from the front. To open the sign:

1. Locate the latch access fastener on the module. It is centered on the right side of the module.

2. 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.

3. Interior display components may be accessed and the pixel strips may be removed.

When closing a display, reverse the previous steps and take note of the following points:

• The weather-stripping on the back edge of the module is intact and in good condition for

preventing water from seeping into the sign.

• The module latches are fully engaged to create a water resistant seal around the edge of the

module. The module must be firmly seated against the sign when the latches are fully engaged.

Maintenance &

Troubleshooting

4-3

4.6 Service & Diagnostics

Reference Drawings:

AF-3090 Controller Assembly, RS232/422.............................................Drawing A-158254

Z -Filter Assy 2, W/GND bar………………………………………………..Drawing A-158472

Assy, Pwr Sply, AF-3090.........................................................................Drawing A-158580

Schematic, Power Supply Configurations...............................................Drawing A-158225

Driver Assembly, AF-3090, 8x8-24..........................................................Drawing A-161661

AF-3090 Controller Assembly Modem ....................................................Drawing A-162098

AF-3090 Controller Assembly Fiber........................................................Drawing A-162099

Panel Assembly, AF-3090, 8x8-24.........................................................Drawing B-161694

Schematic, AF-3090-8-32x***-24, Mono................................................Drawing B-161855

The following sub-sections address servicing of the below display components:

• Line filter and ground bar

• Modules, drivers and power supplies

The sub-sections also address any diagnostic LEDs, fuses and signal/power connectors found on the
components.

The Display Assembly drawings denote the components as follows.

Component… Denoted As… Location…

Line Filters & Ground Bar 0A-1259-4003 Left side, behind module AX02
Modules 0A-1259-3000 or

0A-1259-3001

Power Supplies 0A-1259-4004 Behind the modules; refer to the Display Assembly

Over entire face of the display

drawings

Line Filter

You can replace the filter by first removing all connecting wires, and then releasing the
attachment hardware. Refer to Drawing A-158472. Install the new filter and reference Drawing
B-161855 for correct wiring.

Modules, Pixel Strips & Drivers

A module consists of louvers, several pixel strips and a driver board mounted to its back. Refer to
Section 4.5 to open a display via the modules and access the pixel strips and driver boards.

A pixel strip is a circuit board with four LED pixel clusters mounted directly on it. Each pixel strip
is removable from the module. To remove a pixel strip from the module:

1. Open the display as described in Section 4.5.

2. Disconnect the power and signal connector from the strip you wish to replace.

3. If the pixel strip you wish to replace is located behind the driver assembly, unplug all signal

and power connections on the driver assembly and remove the four corner screws. Refer to

Drawing A-161661.

4. Remove the six wing nuts holding the pixel strip in place.

5. Gently lift the strip from the display.

Maintenance &
Troubleshooting

4-4

6. Reverse the above procedure to

install a new pixel strip.

The driver is a circuit board
responsible for switching the intensity
levels of the LEDs. It is located inside
the driver box and mounts on the back
of the module. To remove a driver
board:

1. Open the display as described in
Section 4.5.

2. Remove the two #10 screws

Figure 20: Driver Board

holding the driver cover in place. Lift the cover off from the assembly. Refer to Drawing A-

161661.

3. Disconnect all power and signal connections from the driver board.

4. Remove the four #6 nuts holding the board in place.

5. Gently lift the board from the display.

6. Reverse the above procedure to install a new driver board.

The following connectors are found on each driver board; refer to Figure 20.

LED/Connector

J1 Signal out to next driver board
J2 Signal in
J3-J10, J12-J19 Output to pixel strips
J11 Power
DS1 Power indicator

Function

The connectors out to the pixel strips connect to the pixel strips in the following manner:

Connector Pixel Strip Coordinates

J3 Top Row, Column 8
J4 Top Row, Column 7
J5 Top Row, Column 6
J6 Top Row, Column 5
J7 Top Row, Column 4
J8 Top Row, Column 3

J9 Top Row, Column 2
J10 Top Row, Column 1
J12 Bottom Row, Column 8
J13 Bottom Row, Column 7
J14 Bottom Row, Column 6
J15 Bottom Row, Column 5
J16 Bottom Row, Column 4
J17 Bottom Row, Column 3
J18 Bottom Row, Column 2
J19 Bottom Row, Column 1

Maintenance &

Troubleshooting

4-5

Controller

The controller sends data to the modules. Refer to the signal summary in Section 4.3 for more
information and to the component location drawings for the position of the controller board.
Figure 21 illustrates a typical controller.

Figure 21:Controller

“DIP” switches are located on the controller’s MDC. The DIP switches set the hardware address,
which the software uses to identify that particular display. When replacing a controller board, be
sure to set the DIP switches in the same address configuration as the defective controller.

NOTE: Setting the DIP switches to address 0 (turn all the switches to OFF by flipping them
toward the printed switch numbers) can activate a test mode. The display’s power must be turned
off and then turned back on to run the test mode.

Switch 8 Switch 7 Switch 6 Switch 5 Switch 4 Switch 3 Switch 2 Switch

1

Address

Off Off Off Off Off Off Off Off Test Mode
Off Off Off Off Off Off Off On
Off Off Off Off Off Off On Off
Off Off Off Off Off Off On On
Off Off Off Off Off On Off Off
Off Off Off Off Off On Off On
Off Off Off Off Off On On Off
Off Off Off Off Off On On On

… … … … … … … …

On On On On Off Off Off Off

1
2
3
4
5
6
7

…

240

Maintenance &
Troubleshooting

4-6

Six diagnostic LEDs are located on the controller; the table below tells what each LED denotes.

J1 Phone

LED Color Function Operation Summary

TEMP Red Temperature

Level

LGHT Red Photocell Light

Level

RUN Red Controller Steady
PWR Green Power Always On Power to the data input circuit when lit.

RX1 Yellow Com 1 Flashes Turns on and flashes when receiving information.
RX2 Yellow Com 2 Flashes Turns on and flashes when receiving information,

Flashes Flash rate is dependent upon the temperature.

Flashes faster in high temperature and slows as the
temperature decreases.

Flashes Flash rate is dependent on the light level. Flashes

faster in bright light and slows as darkness descends.
A steady flash indicates the controller is running

Flash

correctly. Normal flash rate is about once a second.

Normal condition is off.
typically used in custom applications. Normal

condition is off.

The controller contains two jumpers (W1 and W2) for use with a modem system. The jumpers
must jump both pins for a modem system.

Complete the following steps to remove the controller from the display.

1. Disconnect power from J2.

2. Remove all power and signal connections from the board. “Locked” connectors are released

by squeezing together the tabs, then carefully pulling them from the jack. When replacing the
board, it is helpful to have the cables labeled as to which was removed from which connector.

3. Remove each of the six screws holding the board in place.

4. Follow the previous steps in reverse order to install a new controller board.

Modem

If a modem was included with the display, it is located inside the display next to the controller
board.

1. To replace a modem, first disconnect the
power and signal connections (refer to Figure 22 for the
location of the power jack).

2. The modem is held in place with four screws.
Remove the screws and lift the modem out of the display
the display.

3. Attach the new modem using the same four
screws removed in step 2, above.

The modem module has two LEDs. The Power
LED should remain lit while power is applied to
the modem. The Active LED will light when the
modem is in the process of communicating.

A modem system requires jumpers to be set on the controller
board. Refer to the Controller section in 4.6 for the jumper
settings.

Power

LED

RS/232

OUT

Figure 22: Modem Board

Power

Connection

IN

Active
LED

Maintenance &

Troubleshooting

4-7

Fiber Board

Power

Connection

Signal

Connection

Receive LED

Transmit LED

to Next Sign

Input Pair from

Previous Sign

The fiber module has three LEDs. The
power LED (DS1) should remain lit while
power is applied to the module. The
receive LED (DS2) will light when the
display fiber board is accepting signal
from the computer fiber board. The
transmit LED (DS3) will light when the
display fiber board is sending to the
computer fiber board. In addition, the
fiber module has two input fiber
connectors, which the computer or the
previous display connects to, and two
output fiber connectors that connect to the
next display. The fiber board connects to
the controller board with a small DB9
adapter and straight through RJ11 cable.

To replace a fiber optic board:

1. Disconnect the power and signal
connections (refer to Figure 23 for
disconnection of power).

Figure 23: Fiber Optic Board

2. The fiber optic board is held in place with four screws. Carefully remove them.

3. Install the new fiber optic board, replace the screws and reconnect power and signal cables.

Power LED

J2 (Tx1)
J3 (Rx1)
J4 (Tx2)

J5 (Rx2)

Output Pair

}
}

Computer /

Power Supplies

The LED power supplies are identified as assemblies 0A -1259-4005 for amber displays and 0A­1259-4008 for red displays, in the Display Assembly drawings. Each power supply controls two
modules.

Complete the following steps to remove a power supply from the sign:

1. Remove the module directly in front of the failed power supply.

2. Disconnect all the wires connected to the power supply.

3. Remove the hardware holding the power supply in place to free the unit.

4. Follow these steps in reverse order to install a ne w power supply.

5. Verify power supply voltage

Maintenance &
Troubleshooting

4-8

4.7 Optional Temperature Sensor Electrical Installation

Reference Drawings:

Temp Sensor Mounting.............................................................................Drawing A-79767

Signal Input, Venus 1500 .........................................................................Drawing A-129110

After mounting the optional temp sensor, follow these steps to complete the electrical installation. A
2-pair, individually shielded cable (Belden 5594, Daktronics part number W-1234) is used to connect
the sensor to the controller.

1. Run ½ ″ conduit from the sensor location to the controller within the display. The cable must be
routed through one -foot of ½ ″ metal conduit that should be earth-grounded to protect the sensor
and controller form lightning damage.

2. Connect the cable to the temperature sensor terminal block within the temperature sensor as
follow:

Wire Color Terminal Block

Red V+

Green P

Black GND

White N

3. Install the mesh screen with the four screws enclosed.

4. Disconnect power to the display before attaching the cable

5. Connect the cable to the temperature sensor terminal block on the controller (TB7) per the

following table:

Wire Color Terminal Block TB7

(Temp In)

Pin 1 (+5)
Pin 2 (GND)
Pin 3 (Light +)
Pin 4 (Light -)

Green Pin 5 (Temp +)

White Pin 6 (Temp -)

Red Pin 7 (+5V)

Black & Shield Pin 8 (GND

OR Bare (shield) Pin 8 (GND)

To connect the temperature sensor to multiple displays (such as a double-face display):

Wire Color Display 1 TB7 Display 2 TB7

Green Pin 5 (Temp+) Pin 5 (Temp +)
White Pin 6 (Temp -) Pin 6 (Temp -)
Red NC NC
Black NC NC

Maintenance &

Troubleshooting

4-9

4.8 Ventilation Systems

Check ventilation fans after 1,500 hours of operation and every 1,500 hours after that to ensure the
sign cools properly. Check fans more often if the sign is located in a dusty or harsh weather
environment (i.e. along a gravel roa d with dust laden air).

• 1,500 hours is equivalent to 83 days if the sign operates for 18 hours a day with the power to the

sign disconnected when not in use.

• 1,500 hours is equivalent to 62 days if the sign runs non-stop for 24 hours a day.

L Attentio n: Shut off power to the sign when it is not in use. Leaving the power on when the sign is

not operating exposes electrical components to excess condensation, which shortens their life.
Each time you open the display, for whatever reason, take a minute to inspect the fans.

• Check the fan blades for dirt and debris. If the fan blades have a large accumulation of dirt and

debris, change the filters more often. Keep the fan blades clean to maintain fan efficiency and
ensure proper cooling.

• Spin the fan blades with a pen or pencil to ensure that the bearings are free and the fan is still in

balance.

To check the operation of the fans:

• Hold your hand or a piece of light paper beneath the sign to detect air movement. If the operation

of a fan is questionable, a fan-test should be performed

• Press button on the internal thermostat and ensure they run freely.

• If the fan does not turn or does not operate smoothly, replace it.

4.9 Thermostats

Reference Drawings:

Display Assembly................................................................................................Appendix A

A thermostat controls when the ventilation fans operate in the sign. Refer to the Display Assembly
drawing for the location of the thermostat. The ventilation fans turn on when the inside of the fan
reaches 85° F (29° C), and turn off at 70° F (21° C).

4.10 Sign Maintenance

Perform a yearly inspection to maintain safe and dependable sign operation. This inspection should
address the following issues:

• Loose Hardware

Verify fasteners, such as bolts and rivets, have not come loose. Check, tighten, and replace
fasteners as required.

• Exce ssive Dust Buildup

Occasionally it may be necessary to vacuum the inside of the sign cabinet to remove dust/dirt
buildup that may interfere with airflow.

• Water Intrusion – Water Stain Marks

Water can enter the sign where weather stripping has come loose or deteriorated or where
fasteners have come loose allowing gaps in the panels or where moisture may be entering around
hardware. Check electronic components for signs of corrosion.

Maintenance &
Troubleshooting

4-10

• Corrosion

Check the paint; look for possible corrosion, especially at footin gs, structural tie points and
ground rods.

If you notice any of the above conditions, take action to correct the situation.

4.11 Weather Stripping

To ensure the sign is weather resistant, Daktronics provides weather stripping around the entire sign
and around each module. The weather stripping must be properly installed at all times or water may
leak into the sign, damaging the components.

Maintenance &

Troubleshooting

4-11

4.12 Troubleshooting

This sub-section contains some symptoms that you may encounter in the signs. This list does not
include every possible symptom, but does represent common situations that may occur.

Symptom/Condition Possible Cause/Remedy

One or more LEDs on a single module
fail to light.

One or more LEDs on a single module
fail to turn off.

A section of the sign is not working. The
section extends all the way to the right
side of the sign.

One row of modules does not work or is
garbled.

A group of modules, which share the
same power supply assembly, fail to
work.
Entire sign fails to work. • Check for proper line voltage into the power

Temperature always reads 32 degrees
F/0 degrees C

Sign is stuck on bright or dim.

• Replace pixel strip

• Replace/check cables on the module.

• Replace the driver.

• Replace pixel strip

• Replace/check cables on module.

• Replace the driver.

• Replace the first driver on the left side of the

first module that is not working.

• Replace the second driver that is not

working.

• Replace the power supply assembly on the

first module that is not working.

• Replace the ribbon cable.

• Replace first driver.

• Replace controller.

• Check the fuses in the power termination

box.

• Replace the power supply assembly.

• Check power supply voltage

termination panel.

• Check/replace the signal cable to the

controller.

• Check/replace the ribbon cable from the

controller to the driver.

• Check the voltage settings on the power

supplies.

• Replace the controller.

• Verify proper use of the software in the

operation manual.

• Check temperature sensor connections.

• Replace the temperature sensor.

• Replace the controller.

• Check Manual/Auto dimming in Venus 1500

software.

• Check light detector cable.

• Check light detector for obstructions.

• Replace the light detector.

• Replace the controller.

Maintenance &
Troubleshooting

4-12

4.13 Boot Up Initialization Information

Every time the display is powered up, the display will run through an initialization in which it will
display the following:

1. Output Test (DDDs)

2. Product Name (Galaxy)

3. Display Size (Row x Column)

4. Firmware Number (ED-10134)

5. Firmware Revision (Rev X.XX)

6. COM1 Configuration (C1: V15/RTD)

7. COM2 Configuration (C2: None)

8. Line Frequency (60 Hz)

9. Hardware Address (HW: XX)

10. Software Address (SW: XX)

11. Display Name

12. Modem (If modem is present)

4.14 Replacement Parts List

The following table contains some of the items in this sign that you may need to replace over time.
Many of the parts within the sign also list their part numbers on labels affixed to them.

To prevent theft, Daktronics recommends purchasing a lockable cabinet to store manuals and
replacement/spare parts.

Part Description Part Number

Controller 0A-1146-0035
Signal Converter-wire 0A-1127-0237
Signal Converter-Fiber 0A-1127-0239
Modem in display 0P-1146-0003
Light Detector 0P-1151-0002
Digital Temp Sensor 0P-1151-0003
Fiber Board in Display 0P-1127-0024
422 Surge Protector 0P-1146-0031
Phone Surge Protector A-1527
Thermostat Enc losure 0A-1213-4024
Cable, 40-pin ribbon, 66 inch, Dual Row W-1439
Cable Assy, 6-pin to 6-pin harness 0A-1261-0001
Amber Pixel Strip 0P-1261-0003
Red Pixel Strip 0P-1261-0004
Driver Board 0P-1261-0002
Power Supply – Red 0A-1259-4008
Power supply – Amber 0A-1259-4005
Fan; 110CFM, 115VAC, 17W, 60Hz, 4.5” B-1006
Line Filter Assembly 0A-1259-4003
Manual; Venus 1500 Operator’s ED-12717
Manual; Galaxy Outdoor 89 mm Louvered Signs ED-13288

Maintenance &

Troubleshooting

4-13

4.15 Daktronics Exchange/Repair & Return Programs

To serve customers’ repair and maintenance needs, Daktronics offers both an exchange and a repair
and return program. The exchange program reduces down time by providing timely replacement of
key components. Daktronics provides this service to qualified customers who follow the program
guidelines explained below. We are pleased to provide this service to ensure you get the most from
your Daktronics products. Please call our Help Desk (1-877 / 605-1114) if you have any questions
regarding the exchange program or any other Daktronics service.

When you call the Daktronics Help Desk, a trained service technician will work with you to solve the
equipment problem. You will work together to diagnose the problem and determine which exchange
replacement part to ship. If, after you ma ke the exchange, the equipment still causes problems, please
contact our Help Desk immediately.

If the replacement part fixes the problem, package the defective part in the same packaging the
replacement part arrived in, fill out and attach the enclosed UPS shipping document and RETURN
THE PART TO DAKTRONICS. (You may use the same box and packing used to send the
exchange part.) This will speed up the transaction and alleviate confusion when the failed component
arrives at Daktronics. (Daktronics expects immediate return of the exchange part if it does not solve
the problem.) For most equipment, we will invoice you for the replacement part at the time we ship it.
This invoice is due when you receive it.

Daktronics reserves the right to refuse equipment da maged due to acts of nature or causes other than
normal wear and tear.

If you do not ship the defective equipment to Daktronics within 30 working days from the invoice date,
we will assume you will purchase the replacement part and we will invoice you for it. This second

invoice represents the difference between the exchange price and the purchase price of the equipment.
This amount is due when you receive the second invoice. If you return the exchange equipment after
30 working days from invoice date, we will credit you for the amount on the second invoice minus a
restocking fee.

@To avoid a restocking charge, please return the defective equipment within 30 days from the invoice
date.

Daktronics also offers a Repair and Return program for items not subject to exchange.
Where to Send: To return parts for service, contact your local representative prior to shipment to

acquire a Return Material Authorization Number (RMA#). If you have no local representative, call the
Daktronics Help Desk for the RMA#. This will expedite the receiving process.

Packaging for Return: Package and pad the item well so shipment does not damage it. You should
either install electronic components such as printed circuit boards in an enclosure or put them in an
anti -static bag before boxing. Please enclose your name, address, phone number and a clear
description of symptoms.

Maintenance &
Troubleshooting

4-14

Mail: Daktronics, Inc., Customer Service

PO Box 5128
331 32nd Avenue
Brookings, SD 57006

Phone: Daktronics Help Desk: 1-877 / 605-1113 (toll free)

Or 1-605 / 697-4034

Customer Service Fax: 1-605 / 697-4444
E-mail: [e-mail]

Maintenance &

Troubleshooting

A-1

Appendix A: Reference Drawings

Refer to Section 1.1 for information on reading drawing numbers. This appendix lists the following
drawings in numerical order by size (A, B, etc.)

Assy, Digital Temp Sensor Housing…………………………………………….Drawing A -79410

Temp Sensor Mounting...................................................................................Drawing A-79767

System Riser Diagram, Modem.......................................................................Drawing A-88426

System Riser Diagram, RS422........................................................................Drawing A-92681

System Riser Diagram, RS232........................................................................Drawing A-96058

System Riser Diagram, Fiber .........................................................................Drawing A-110559

Schematic; Fiber/Modem Input......................................................................Drawing A-125900

Signal Input, Venus 1500 ...............................................................................Drawing A-129110

AF-3090 Controller Assembly, RS232/422...................................................Drawing A-158254

Power Specs, AF-3090, Amber.....................................................................Drawing A-158396

Z -Filter Assy 2, W/GND Bar…………………………………………………….Drawing A -158472

Assy, Pwr Sply, AF-3090...............................................................................Drawing A-158580

Driver Assembly, AF-3090, 8X8-24…………………………………………...Drawing A-161661

Layout, Panel Board, 8-32x48, 24”, 30”, 36”, 3 PH.......................................Drawing A-161874

AF-3090 Controller Assembly Modem ..........................................................Drawing A-162098

AF-3090 Controller Assembly Fiber..............................................................Drawing A-162099

Power Specs, AF-3090, Red LEDs...............................................................Drawing A-162439

Shop Drawing, AF-3090, 8x**-24 Amber/Red ..............................................Drawing B-160986

Shop Drawing, AF-3090, 16x**-24 Amber/Red ............................................Drawing B-160987

Shop Drawing, AF-3090, 24x**-24 Amber/Red............................................Drawing B-160988

Shop Drawing, AF-3090, 32x**-24 Amber/Red ............................................Drawing B-160989

Schematic, AF-3090-8-32x***-24, Mono......................................................Drawing B-161855

Face Panel, AF-3090, 8x8-24 Amber ...........................................................Drawing C-160183

Face Panel, AF-3090, 8x8-24, Red..............................................................Drawing C-160825

Appendix A:
Reference Drawings

B-1

Appendix B: Signal Converter

The following table gives the typical state of the signal converter when the LEDs are either on or off.
Refer to Figure 24 for an illustration of the signal converters and the locations of the various
components.

LED Indicators Typical States

ON Signal Converter (SC) is receiving power.

PWR

TX

RX

OFF

ON Steady

OFF Steady Normal state, SC is not transmitting data.

Brief Flicker SC is transmitting data.

ON Steady

OFF Steady Normal state, SC is not receiving data.

Brief Flicker SC is receiving data.

SC is not receiving power.
Internal 1 AMP Fuse is bad.
SC is not connected to a serial port.
(If connected to serial port) Serial port or serial
cable may be bad.

Field cabling between SC and display is bad,
connected to display out or terminated
incorrectly.

Figure 24: Signal Converters

0A -1127-0237 – Wire

The following tables list the jack pin -outs for a wire signal converter.

J2 & J3 - RJ/11 J4 & J5 – Phoenix

PIN OPERATION PIN OPERATION

1 GND 1 GND
2 TX -N (out) 2 RX-P (in)
3 TX -P (out) 3 RX-N (in)
4 RX -N (in) 4 TX-P (out)
5 RX -P (in) 5 TX-N (out)
6 GND 6 GND

Appendix B:
Signal Converter

J1 25 Pin DB-F

PIN OPERATION

2 TX -P (out)
3 RX -P (in)
7 GND

B-2

Loop-Back Te st: To perform a loop-back, for testing purposes only, connect the following using
copper conductor jumpers.

L Note: This test should be performed with only one jack at a time. Do not connect loop back to

more than one jack at a time.

J2 & J3 J4 & J5
TX -N to RX-N OR RX-P to TX-P
TX -P to RX-P RX-N to TX-N

0A -1127-0239 – Fiber

The following tables give the jack pin -outs for a fiber signal converter.

JACK OPERATION J1 – 25 Pin DB-F

J2 TX1 (out)
J3 RX1 (in) 2 TX -P (out)
J4 TX2 (out) 3 RX -P (in)
J5 RX2 (in) 7 GND

Loop-Back Test: To perform a loop-back, for testing purposes only, connect the following using
a fiber optic cable jumper.

J2 & J3 or J4 & J5

TX to RX

Serial Cable (W -1249)

This table lists the pin connections when using a serial cable (W-1249).

DB9-F DB25-F

Pin 3 – TX Pin 2 – TX
Pin 2 – RX Pin 3 – RX
Pin 5 – GND Pin 7 - GND

Serial Adaptor (A-1603)

DB9-F DB25-M

Pin 3 – TX Pin 2 – TX
Pin 2 – RX Pin 3 – RX
Pin 5 – GND Pin 7 - GND

PIN OPERATION

Appendix B:

Signal Converter