Daktronics AF-3020-7.6-R,A User Manual

Galaxy Outdoor 7.62mm

Series AF-3020

Installation, Maintenance, &

Troubleshooting Manual

ED13518

ED13518 Product#1272 Rev 0 – 29 August 2002

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.

Venus

is a registered trademark of Daktronics, Inc.

331 32nd Ave PO Box 5128 Brookings SD 57006 Tel 605-697-4036 or 877-605-1115 Fax 605-697-4444 www.dak tronics.com e-mail: h elpdesk@daktronics.com

Table of Contents

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

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

1.2 Safety Precautions......................................................................................................1-2

1.3 Daktronics Nomenclature...........................................................................................1-2

1.4 Network Concepts......................................................................................................1-3

RS/232 Network.........................................................................................................1-3

RS/422 Network.........................................................................................................1-4

Modem Network.........................................................................................................1-4

Fiber Optic Network...................................................................................................1-4

1.5 Display Overview.......................................................................................................1-4

1.6 Part Definitions ..........................................................................................................1-5

Section 2 : Mechanical Installation............................................................................. 2-1

2.1 Support Structure Design...........................................................................................2-1

2.2 Display Mounting.......................................................................................................2-1

Wall/Pole Mount........................................................................................................2-1

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

3.1 Common Connectors in Galaxy Displays..................................................................3-1

3.2 Conduit.......................................................................................................................3-2

3.3 Power..........................................................................................................................3-3

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

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

3.4 Control Cable Requirements......................................................................................3-5

RS/232 ....................................................................................................................... 3-5

RS/422 ....................................................................................................................... 3-5

Modem .......................................................................................................................3-5

Fiber Optic .................................................................................................................3-5

3.5 Signal Termination from Computer to Display..........................................................3-6

RS/232 ....................................................................................................................... 3-6

RS/422 ....................................................................................................................... 3-6

Modem .......................................................................................................................3-6

Fiber Optic .................................................................................................................3-7

3.6 Signal Termination Between Two (or More) Displays..............................................3-7

RS/422 Interconnection..............................................................................................3-7

Fiber Interconnection.................................................................................................3-7

3.7 First Time Turn On ....................................................................................................3-8

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

4.1 Weather Stripping ......................................................................................................4-1

4.2 Display Access/LED Module Removal .....................................................................4-1

4.3 Power Supply .............................................................................................................4-1

4.4 Controller Board.........................................................................................................4-2

Table of Contents

Display Controller ..................................................................................................... 4-2

LEDs & Jumpers........................................................................................................ 4-2

Controller Address & Test Mode .............................................................................. 4-3

4.5 Light Detector............................................................................................................ 4-3

4.6 Transformer ............................................................................................................... 4-4

4.7 Communicate Accessories......................................................................................... 4-4

Accessing and Replacing the Modem........................................................................ 4-4

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

LEDs & Jumpers........................................................................................................ 4-4

Surge Suppressor, RS422 .......................................................................................... 4-5

4.8 Structural Inspection.................................................................................................. 4-5

4.9 Troubleshooting......................................................................................................... 4-6

4.10 Boot Up Initialization Information............................................................................ 4-6

4.11 Replacement Parts ..................................................................................................... 4-7

4.12 Daktronics Exchange/Repair & Return Programs..................................................... 4-7

Appendix A: Optional Temperature Sensor................................................................ A-1

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

Appendix C: Reference Drawings ...............................................................................C-1

Table of Contents

List of Figures

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

Figure 2:Module Numbering Example – 48x240 Front......................................................................1-2

Figure 3: Module Numbering..............................................................................................................1-2

Figure 4: Typical Label.......................................................................................................................1-3

Figure 5: Ribbon Cable Connector #2 ................................................................................................3-1

Figure 6: Fiber Optic Connector.........................................................................................................3-1

Figure 7: RJ11 Connector ...................................................................................................................3-1

Figure 8: Termination Panel (Left) and Termination Block (Right) ..................................................3-2

Figure 9: Phoenix Connector ..............................................................................................................3-2

Figure 10: Mat-n-Lok Connector........................................................................................................3-2

Figure 11: Tab Connector ...................................................................................................................3-2

Figure 12: Installation with Ground and Neutral Conductor Provided...............................................3-4

Figure 13: Installation with only Neutral Conductor Provided...........................................................3-4

Figure 14: Display Controller .............................................................................................................4-2

Figure 15: Location of DIP Switches..................................................................................................4-3

Figure 16: Modem...............................................................................................................................4-4

Figure 17: Fiber Optic Board..............................................................................................................4-4

Figure 18: Surge Protector, RS422 .....................................................................................................4-5

Figure 19: Temperature Sensor Eave/Wall Mounting....................................................................... A-1

Figure 20: Temperature Sensor Mounting to Bottom of Display......................................................A-1

Figure 21: Signal Converters ............................................................................................................. B-1

List of Figures

iii

Section 1 : Introduction

1.1 How to Use this Manual

This manual explains the installation, maintenance and troubleshooting of a Daktronics Galaxy outdoor LED (light emitting diode) displays controlled by a Venus

1500 controller. 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 is divided into seven sections: Introduction, Mechanical Installation, Electrical Installation, Maintenance & Troubleshooting and Appendices A, B and 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 sign mounting.

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

sign.

· Maintenance & Troubleshooting addresses such things as removing basic sign components,

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

· Appendix A provides information for the optional temperature sensor.

· Appendix B covers information pertaining to the signal converters.

· Appendix C includes the drawings referenced in this manual.

Daktronics identifies manuals by an ED number located on the cover page of each manual. For example, this manual would be referred to as ED13518.

Listed below are a number of drawing types commonly used by Daktronics, along with the information that each is likely to provide. 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 information, power and signal entrance points and

access method (front and rear).

· Schematics: power and signal wiring for various components.

· Component Placement Diagrams: locations of critical internal sign components such as power

supply assemblies, controller boards, thermostats and light detectors.

Figure 1 illustrates Daktronics drawing label. The drawing number is located in the lower-right corner of the drawing. Listing the last set of digits and the letter preceding them identifies drawings in the manual. In the example below, the drawing would be referred to as Drawing A-114667. Reference drawings are inserted in Appendix C at the end of the manual.

Figure 1: Drawing Label

Introduction 1-1

All references to drawing numbers, appendices, figures or other manuals are presented in bold typeface, as shown below.

“Refer to Drawing A-114667 in Appendix C for the power supply location.”

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

Reference Drawings:

Component Placement Diagram......................................................... Drawing A-114667

Daktronics signs are built for long life and require little maintenance. However, from time to time, certain sign components will need replacing. The Replacement Parts List in Section 4.11 provides the names and part number of components that may need to be ordered during the life of the sign.

Following the Replacement Parts List is the Exchange/Replacement Procedure in Section 4.12. Refer to these instructions if any sign component needs replacement or repair.

1.2 Safety Precautions

1. Read and understand these instructions before installing.

2. Be sure that the display is properly grounded.

3. Disconnect power before working on 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.

5. Care must be taken when handling the display’s face panel to prevent any injuries or damage, especially in windy conditions.

1.3 Daktronics Nomenclature

To fully understand some Daktronics drawings, such as schematics, it is necessary to know how various components are labeled in those drawings. 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 16 pixels high by 48 pixels wide. By placing modules side-by-side and on top of one another a sign of any size can be designed and built. Individual modules can be easily removed from the sign if required. Figure 2 illustrates how Daktronics numbers modules on a Galaxy sign. Figure 3 breaks down the module numbering method.

Figure 2:Module Numbering Example – 48x240

Front

Figure 3: Module Numbering

1-2

Introduction

The label “A” on a drawing typically denotes an assembly. An assembly can be a single circuit board or a collection of components that function together, usually mounted on a single plate or in a single enclosure. Assemblies are divided into two types: those that route signal and those that route power.

In addition, the following labeling formats might be found on various Daktronics drawings:

· “TB??” denotes a termination block for power or signal cable.

· “F??” denotes a fuse.

· “E??” denotes a grounding point.

· “J??” denotes a power or signal jack.

· “P??” denotes a power or signal plug for the opposite jack.

Finally, Daktronics part numbers are commonly found on drawings. Those part numbers can be used when requesting replacement parts from Daktronics Customer Service. Take note of the following part number formats:

· “0P-????-????” denotes an individual circuit board, such as a driver board.

· “0A-????-????” denotes an assembly, such as a circuit board and the plate or bracket to which it is

mounted. A collection of circuit boards working as a single unit may also carry an assembly label.

· “W-????” denotes a wire or cable. Cables may also carry the assembly numbering format in

certain circumstances. This is especially true of ribbon cables.

· “F-????” denotes a fuse.

Most circuit boards and components within this sign carry a label that lists the part number of the unit. If a circuit board or assembly is not listed in the replacement parts list in Section 4, use the label to order a replacement. A typical label is shown in Figure 4. The part number is in bold.

0P-1195-0001

SN: 6343 05/19/99 REV.1

Figure 4: Typical Label

1.4 Network Concepts

The concept of using LED displays as a 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 sign installations has emerged, and Daktronics display systems have been designed to meet those needs. The common thread to most client requests is a means of programming and controlling a group of signs from a central control point. Daktronics responded by developing a powerful system of interconnecting and controlling signs. One network of signs can consist of a maximum of 240 signs. 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 sign or group of signs in a network which message should be run

· The ability to determine the status of any sign on the network

· The ability to control multiple sign technologies on the same network

There are four network systems available: RS/232, RS/422, modem and fiber optic.

RS/232 Network

RS/232 (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. All computers have an RS/232 communications port. Refer to Section 3 for additional information.

Introduction 1-3

RS/422 Network

RS/422 (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 RS/422 over RS/232 is the longer cable length that is possible. A signal converter is needed to convert the computer’s RS/232 to RS/422. Refer to Section 3 for additional information.

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 the controller and the display. The display must have a dedicated phone line. Refer to Section 3 for additional information.

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 required to convert the computer’s RS/232 interface to a light signal.

1.5 Display Overview

Refer to project specific shop drawings for details of the display.

The Daktronics outdoor LED displays have been designed and manufactured for performance, reliability, easy maintenance and long life. The displays consist of an array of LED pixels. The configuration of LED pixels is dependent on the family of LED displays.

A typical system consists of a Windows and one or more displays. The displays are offered as single-face displays, which are single-sided stand-alone units. The AF-3020 can be a double-sided display with two singles back to back each using a separate controller.

The Venus 1500 is a software package that runs under Windows

operating systems on an IBM

-compatible computer. Refer to the Venus 1500 controller manual for

installation and maintenance of the Venus 1500 editing station.

The Galaxy Series AF-3020 displays are matrix-based outdoor LED displays that are available in monochrome red or amber characters. They are offered as 16, 32, or 48 pixel high displays with a standard 7 high 7.62mm minimum character in different lengths. The Galaxy model numbers are described as follows: AF-3020-RRxCCC-7.62-SF-Z

AF-3020

CCC

= Outdoor Galaxy Display = 16, 32 or 48 Rows High = Num ber of Columns Long (96, 144, 192 and 240 are

available)

7.62 SF

= 7.62mm Character Height = Single Face (SF) = Monochrome Red (R) or Monochrome Amber ( A)

based personal computer (PC) running Venus 1500 software

95, Windowsâ 98 or Windows NTâ

1-4

Introduction

1.6 Part Definitions

The following illustrations 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 very slightly from the illustrations below.

This is only a brief overview. Refer to Section 4 for more detailed information on maintaining and troubleshooting various sign components.

Column: Vertical group of pixels.

Com Port – Serial Port: Connector on the back of the controller PC. The Com Port is used to control

the sign network through either a DB9 or DB25-pin serial connector.

Controller Board: Controls the data for the entire display. It is located behind the bottom left module.

Display Board: 16 row by 48-column array of pixels.

Display Configuration: Refers to a display’s model number, address, etc. This information will be

automatically displayed when the display is powered up.

Driver: Located on the back of the display board.

Driver Board: The LED pixels are mounted directly onto the driver/pixel board. This board is also responsible for the switching and intensity levels of the LEDs.

Face Panel: Latching, hinged door that hinges downward, which the modules are mounted to.

Fiber Optic: Standard communication method using light (signal) transmitted through a glass fiber.

Fiber optic cable has a maximum length of 2,000 feet. A signal converter is required.

LED (Light Emitting Diode): Electrical component which creates a single point of light on the display. There are 768 LEDs per module.

Modem: Uses standard telephone cable routed through conduit. 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 switch board/communications system.

Module: Unit of the display that contains the LEDs, display board and driver board.

Network: Consists of multiple signs connected to each other. Up to 240 Venus 1500 controlled

displays can exist on one network.

Pixel: Single LED in the display.

RS/232: Standard PC communication type with a maximum cable length of 25 feet (8 meters).

RS/422: Standard differential communication type with a maximum cable length of 4000 feet (1.2

kilometers).

Row: Horizontal group of pixels.

Introduction 1-5

RX LED: LED on the signal converter that indicates if the display is sending data back to the signal converter.

Sign Address: Identification number assigned to each sign in a network. The control software uses the address to locate and communicate with each display independently. Displays that are on the same network cannot have the same address.

Signal Cable Tester: Used to test the cable connections and data communication.

Signal Converter: Daktronics supplied unit which converts the data from RS/232 to RS/422 (wire

converter) or RS/232 to light signals (fiber converter). The signal converter is used in RS/422 systems or fiber systems respectively.

Surge Suppressor (Surge Protector): Device inserted in the alternating current utility line and/or telephone line to prevent damage to electronic equipment from voltage "spikes" called transients.

TX LED: LED on the signal converter, which indicates the control PC, is sending data to the display.

Venus 1500: Daktronics designed, Windows based software used to create and edit messages on the

displays.

1-6

Introduction

Section 2 : Mechanical Installation

Note: Daktronics engineering staff must approve any changes that may affect the weather tightness of the display. If any modifications are made, detailed drawings of the changes must be submitted to Daktronics for evaluation and approval, or the warranty may be void.

Daktronics is not responsible for the integrity of the mounting structure or any mounting hardware not provided by Daktronics. It is the customer’s responsibility to ensure the structure and any additional hardware have been approved by a qualified structural engineer.

2.1 Support Structure Design

Support structure design depends on the mounting methods, display size and weight. The structure design is critical and should be done only by a qualified individual. 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.

Note: Project specific Shop Drawings are provided for special circumstances where there is a special mounting method used.

2.2 Display Mounting

It is the customer’s responsibility to ensure that the installation will meet local standards. The mounting hardware must be capable of supporting all components to be mounted. The mounting hardware and method are the responsibility of the customer. Refer to the project specific shop drawings for the approximate weight and size of each model of display. Daktronics is not responsible for the installations or the structural integrity of support structures done by others.

Daktronics recommends a wall/pole mounting method. Remember to have all mounted displays inspected by a qualified structural engineer.

Note: The display has a hinged face panel. Care must be taken to allow the door to properly open (refer to the project specific shop drawing).

Wall/Pole Mount

Note: It is the customer’s responsibility to determine the proper wall/pole mounting method and location of the display. The number of attachment points needed and the structure must be reviewed by a qualified structural engineer and meet all national and local codes. Daktronics is

not responsible for the installations or the structural integrity of support structures installed by others.

Mounting channels/angles on the back of the display may be used as a wall/pole mount method. There are ¼" bolts tightened into the rear of the display (Refer to the rear view of the shop drawing) to assist with mounting. Once the proper mounting method and mounting channels/angles are determined, attach the mounting channels/angles to the back of the display using the ¼" bolts. Sealing washers or waterproof sealant must be placed between the display and the mounting channel/angle to prevent water leaking into the display. (Refer to the rear view on the shop drawing.)

Mechanical Installation

2-1

There are five conduit knockouts for power or signal cables on the rear of the display as noted in the display’s shop drawing. Any hole that is punched or drilled in the display must be waterproofed (either using a waterproof plug or conduit) to prevent water from entering the sign.

2-2

Mechanical Installation

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