Daktronics Sportsound 500hd User manual

201 Daktronics Drive

Brookings, SD 57006-5128

www.daktronics.com/support

800.325.8766

SPORTSOUND®500HD

AUDIO SYSTEM

INSTALLATION MANUAL

P1561

DD1798473

Rev 13

30 July 2021

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.

Daktronics trademarks are property of Daktronics, Inc. All other trademarks are property of their respective companies.

FCC Statement

Supplier Declaration of Conformity (SDoC)

This product complies with Part 15 of the FCC Rules.

Operation is subject to the following two conditions: (1)

This device may not cause harmful interference, and

(2) this device must accept any interference received,

including interference that may cause undesired

operation.

Note: This equipment has been tested and found to

comply with the limits for a Class A digital device,

pursuant to part 15 of the FCC Rules. These limits are

designed to provide reasonable protection against

harmful interference when the equipment is operated

in a commercial environment. This equipment

generates, uses, and can radiate radio frequency

energy and, if not installed and used in accordance

with the instruction manual, may cause harmful

interference to radio communications. Operation of

this equipment in a residential area is likely to cause

harmful interference in which case the user will be

required to correct the interference at their own

expense.

Warning: The user is cautioned that changes and

modications made to the equipment without the

approval of manufacturer could void the user’s

authority to operate this equipment.

Industry Canada Regulatory Information

This Class A digital apparatus complies with Canadian

ICES-003.

Cet appareil numérique de la classe A est conforme à

la norme NMB-003 du Canada.

Inquiries

Contact Daktronics with any questions regarding our

product compliance.

Mail:

Daktronics

201 Daktronics Dr.

Brookings, SD 57006 USA

Phone:

800-325-8766

Website:

www.daktronics.com

– i –

Table of Contents

1 Introduction��1

Important Safeguards ..........................................................................................................................1

Resources ..............................................................................................................................................1

Daktronics Nomenclature ...................................................................................................................2

2 Sound System Components ��3

Equipment Overview ...........................................................................................................................3

Sound Cabinet......................................................................................................................................3

Grille��3

Drivers ��3

Control Enclosure..................................................................................................................................4

Fiber Conversion Box............................................................................................................................4

Audio Control Rack..............................................................................................................................4

Signal Cables ........................................................................................................................................4

3 Mechanical Installation ��5

Cabinet Installation ..............................................................................................................................5

Lift the Cabinet��5

Mount the Cabinet ��6

Aim the Speakers ��6

Mounting the Control Enclosure .........................................................................................................7

4 Electrical Installation ��8

Power/Signal Connections..................................................................................................................8

Power IN ��9

Signal IN (Fiber) ��9

Signal IN (Analog Only) ��9

Speaker OUT ��9

Grounding ��10

Lightning Protection ...........................................................................................................................10

Fiber Conversion Box Connections...................................................................................................10

5 Maintenance��12

Grille Maintenance and Cleaning ...................................................................................................12

Grille Mesh Replacement..................................................................................................................12

Control Enclosure Maintenance.......................................................................................................14

Filters ��14

Fan ��14

Thermostat��14

6 Troubleshooting ��15

Indicator Lights....................................................................................................................................17

Control Enclosure ��17

Audio Control Rack��17

Fiber Conversion Box ��17

System Testing .....................................................................................................................................17

Driver Troubleshooting .......................................................................................................................17

– ii –

Table of Contents

Driver Replacement ...........................................................................................................................19

High-Frequency Driver (A-2302) ��19

Mid-Frequency Driver (A-2305) ��19

Low-Frequency Driver (A-1903) ��20

Amplier Troubleshooting and Replacement .................................................................................20

Media Converters...............................................................................................................................21

Typical Component Settings ��21

Verifying Network Activity ��22

Input/Output Expander .....................................................................................................................22

Typical Component Settings ��22

Verifying Network Activity ��23

Checking for Input Signal ��23

Checking for Output Signal��23

Replacement Parts.............................................................................................................................23

Sound Cabinet��23

Control Enclosure ��23

Fiber Conversion Box ��24

7 Daktronics Exchange and Repair & Return Programs ��25

Exchange Program ............................................................................................................................25

Repair & Return Program...................................................................................................................26

Daktronics Warranty & Limitation of Liability ...................................................................................26

A Reference Drawings ��27

B Supplementary Manuals��47

C Daktronics Warranty & Limitation of Liability��49

Introduction

1

1 Introduction

This manual explains the installation, maintenance, and troubleshooting of a Sportsound®

500HD Audio System. For additional information regarding safety, installation, operation,

or service, refer to the telephone numbers listed in Section 7: Daktronics Exchange and

Repair & Return Programs (p�25). This manual is not specic to a particular installation.

Important Safeguards

• Read and understand all instructions before beginning the installation process�

• Disconnect system power when not in use or when servicing�

• Disconnect system power before servicing power supplies to avoid electrical shock�

Power supplies run on high voltage and may cause physical injury if touched

while powered� Several disconnect switches may be required to de-energize the

equipment�

• Do not modify the cabinet structure or attach any panels or coverings without the

express written consent of Daktronics�

• Do not disassemble control equipment or electronic controls of the system; failure to

follow this safeguard will make the warranty null and void�

• Do not drop the control equipment or allow it to get wet�

• Always turn off and/or unplug the control equipment when it is not in use� This keeps

equipment protected from power spikes and lightning�

• Inspect equipment for shipping damage such as rattles and dents, and verify that

all equipment is included as itemized on the packing slip� Immediately report any

problems to Daktronics; save all packing materials if exchange is necessary�

Resources

Figure 1 illustrates a Daktronics drawing label.

The drawing number is located in the lower-

right corner of a drawing. This manual refers

to drawings by listing the last set of digits. In

the example, the drawing would be referred

to as DWG-1007804. All references to drawing

numbers, appendices, gures, or other manuals

are presented in bold typeface. Any drawings

referenced in a particular section are listed at

the beginning of it as shown below:

Reference Drawing:

System Riser Diagram....................................................................................... DWG-1007804

Daktronics identies manuals by the DD or ED number located on the cover page.

Daktronics has a searchable knowledgebase of common questions and troubleshooting

tips: www.daktronics.com/support.

Visit the Daktronics Support YouTube channel to learn how

to properly operate Sportsound systems:

www.youtube.com/DaktronicsSupport.

Drawing Number

Figure 1: Drawing Label

Introduction

2

Project-specic information takes precedence over any other general information found

in this manual. Such information may include:

• Schematic Drawings: describe internal power and signal wiring

• Shop Drawings: describe mounting methods to structural elements, access method

(front or rear), and power and signal entrance points

• System Riser Diagrams: describe power and signal connections between system

components and the control location; may also include control room layout and

schematic

• Final Assembly Drawings: describe internal component locations and detailed

product appearance with part numbers and quantities

Ensure all applicable material has been gathered before beginning the installation.

Contact a Daktronics sales coordinator or project manager.

Daktronics Nomenclature

Most components have a white label that lists the part number

(Figure 2). Part numbers will also appear on certain drawings. If a

component is not found in the Replacement Parts (p�23), use

the label to order a replacement. Refer to Section 7: Daktronics

Exchange and Repair & Return Programs (p�25) if replacing or

repairing any component.

Main Component Labels

Part Type Part Number

Individual circuit board 0P-XXXX-XXXX

Assembly; a collection of

circuit boards 0A-XXXX-XXXX

Wire or cable W-XXXX

Fuse F-XXXX

Transformer T-XXXX

Metal part 0M-XXXXXXX

Fabricated metal assembly 0S-XXXXXX

Specially ordered part PR-XXXXX-X

0P-1127-0024

SN: 2465

02/19/12 Rev. 1

Figure 2: Part Label

Accessory Labels

Component Label

Termination block for

power or signal cable TBXX

Grounding point EXX

Power or signal jack JXX

Power or signal plug for

the opposite jack PXX

Sound System Components

3

2 Sound System Components

Equipment Overview

The Sportsound 500HD audio system consists of the following elements:

• Sound Cabinet

• Control Enclosure

• Fiber Conversion Box

• Audio Control Rack

• Signal Cables

Sound Cabinet

The Sportsound 500HD sound system

cabinet (Figure 3) is 3'-0" (914 mm) high,

8'-0" (2438 mm) wide, and 3'-6" (1067

mm) deep. It is composed of a steel

skeleton sheeted in custom aluminum

paneling with two rear access doors.

The cabinet is powder coat black with a

wrinkle nish.

Grille

Reference Drawing:

Mesh Layout; SS500HD ....................................................................................... DWG-983398

The grille of the cabinet consists of a woven ame resistant acoustical mesh. The mesh

can be printed in a variety of colors to display advertising, sponsors, or logo designs. The

printable area is 2'-9" (838 mm) high by 8'-0" (2438 mm) wide.

Drivers

The number of drivers (also known as speakers) will vary based on whether the cabinet

is a dual- (500HD-D) or single-sided (500HD-SL/-SR) model. Three different types of drivers

are used in the sound cabinet (Figure 4):

• 15" (381 mm) low frequency drivers: Daktronics part # A-1903

• 8" (203 mm) mid-range drivers: Daktronics part # A-2305

• 1.4" (36 mm) high frequency drivers: Daktronics part # A-2302

A-1903

A-2305 A-2302

Figure 4: 500HD Drivers

Note: All products in this system are tested individually for

product safety approval.

Figure 3: 500HD Sound Cabinet with Grille

Sound System Components

4

Control Enclosure

A thermostatically controlled and NEMA3R control enclosure

(Figure 5) houses the ampliers. In sound systems, the amplier

is the last component before the drivers. It receives a signal

from the source equipment and amplies it to power the

drivers. The Sportsound 500HD sound system utilizes 1 or 2

power ampliers (depending on the cabinet model) with built-

in Digital Signal Processor (DSP), which manages equalization,

limiting, compression, and crossover functions.

The DSP program is set at the factory and is not user-

adjustable.

Refer to Mounting the Control Enclosure (p�7) and Power/

Signal Connections (p�8) for more information about the

control enclosure.

Fiber Conversion Box

Note: A ber conversion box is not always provided. In

those systems, analog signal goes directly to the

audio cabinet.

The ber conversion box (Figure 6) converts the analog

audio signal from the audio control rack into ber optic

signal that goes out to the control enclosure. The box

is typically permanently wall-mounted near the source

equipment location.

The ber conversion box includes an analog backup signal.

This provides a redundant safety, in case the ber link to

the sound cabinet is lost. To go into analog backup mode,

simply turn the switch to the ANALOG position.

Refer to Fiber Conversion Box Connections (p�10) for more information about the ber

conversion box.

Audio Control Rack

The Sportsound 500HD audio system is compatible with all Daktronics standard control

racks. Refer to the manual provided with the control rack for proper operation.

Signal Cables

Cable specications are as follows:

• Minimum 2-core, multimode 50-micron ber optic cable from ber conversion box

to control enclosure. If included with a Daktronics scoreboard or display, the sound

system may share a ber optic cable run, requiring additional cores.

• 1 pair, 22 AWG audio cable from ber conversion box to control enclosure for analog

backup (part # W-1615)

• 50' (15.2 m) speaker cable (located inside audio cabinet) that routes to the control

enclosure (part # W-2317)

Figure 5: Control Enclosure

Figure 6: Fiber Conversion Box

Mechanical Installation

5

3 Mechanical Installation

A qualied technician must install the Sportsound 500HD cabinet and control enclosure.

It is the customer’s responsibility to ensure that a qualied structural engineer approves

the mounting structure and any additional hardware needed to secure the cabinet.

The cabinet must be installed no farther than 50' (15.2 m) behind the goal post and 40'

(12.2 m) above grade for optimal audio coverage.

Note: Daktronics assumes no responsibility for the structure’s integrity. The engineer

responsible for the attached-to base structure shall evaluate the adequacy

of their structure to support the gravity loads imparted by the cabinet at each

attachment point in combination with other associated loading conditions.

Daktronics assumes no responsibility for system damage or injury resulting from

installation methods that deviate from attachment details specied on shop

drawings. Daktronics also assumes no liability for system damage or injury resulting

from incorrect setup or lifting methods performed by non-Daktronics employees.

Cabinet Installation

Mechanical installation consists of lifting and

mounting the Sportsound 500HD cabinet onto an

existing support structure.

Lift the Cabinet

The Sportsound 500HD cabinet may be shipped

with two shipping brackets attached to the top

(Figure 7).

Each bracket is attached to the cabinet with

two 1/2" lift eyes (Figure 8). Remove the shipping

brackets, and reinstall all four 1/2" lift eyes in the

holes prior to installing the cabinet.

Whenever possible, use a spreader bar, or lifting

bar, to lift the cabinet. Spreader bars ensure

the force on the eyebolts remains straight up,

minimizing lifting stress.

Figure 9 illustrates the preferred lifting method

on the left and an acceptable alternative lifting

method on the right. When lifting the cabinet:

• Use a spreader bar if possible.

• Use every lifting point provided.

Figure 7: Shipping Bracket

Figure 8: Lift Eyes

Preferred

Lifting Bar 45° Minimum

Acceptable

Figure 9: Lifting Methods

Mechanical Installation

6

Cables and chains attached to the eyebolts and

directly to a center lifting point, as shown in the

"Acceptable" example in Figure 9, can create a

dangerous lateral force on the eyebolts and may

cause the eyebolts to fail. The smaller the angle

between the cable and the top of the cabinet,

the lighter the cabinet must be to safely lift it. If this

method must be used, ensure a minimum angle

between the chain and cabinet of at least 45°.

Do NOT attempt to lift the cabinet if the angle is

less than 45°. Exceeding load angles or weight limits

could cause the bolts in the cabinet to buckle,

resulting in serious damage to the equipment or injury

to personnel. Also, loads should be applied directly in

the plane of the eyebolt as shown in Figure 10.

Note: Daktronics assumes no liability for damages resulting from incorrect setup or lifting

methods. Eyebolts are intended for lifting only. Do not attempt to permanently

support the cabinet by the eyebolts or eyebolt holes.

If installers remove the eyebolts, use 1/2" bolts to plug the holes.

Mount the Cabinet

Reference Drawings:

SS500HD Mounting; w/ Stringer Mounted Displays ......................................... DWG-992093

Engineering Specication; Sportsound 500HD................................................ DWG-969776

Side Panel Mounting Details w/ SS500HD ........................................................ DWG-992088

SS500HD Mounting w/ Pole Clamp Displays.................................................... DWG-982267

Single Column Install Specs; SS500HD ............................................................ DWG-1005534

The sound cabinet will be mounted atop a frame that must be certied by a structural

engineer. To mount the system in place, position the cabinet on the structure where it

is to be mounted. Several mounting methods are available. Weld the cabinet’s bottom

members to the structure at the locations indicated on the appropriate drawing listed

above.

Aim the Speakers

Reference Drawings:

Mid/High Speaker Adjustment Chart; 500HD................................................ DWG-1108053

Tools Required: 9/16" wrench/socket

Once the cabinet has been mounted in place, it may be necessary to adjust the

direction of the speakers for the individual facility. DWG-1108053 in Appendix A provides

speaker aiming instructions as well as recommended angles to position the speakers,

based on the cabinet’s location in relation to the seating area(s).

Acceptable Unacceptable

Figure 10: Eyebolt Plane Load

Mechanical Installation

7

Mounting the Control Enclosure

Reference Drawings:

Mtg Detail; 500HD Ctrl Encl Beam Clamp ..................................................... DWG-1131068

Tools Required: 1/2" & wrench/socket, 3/4" wrench/socket

Note: Installation described below requires I-beams with 3/16" to 3/4" thick beam

anges. If an alternate mounting option for control enclosure is preferred, it is

the responsibility of the installer to adequately secure the enclosure to the base

structure.

The Sportsound 500HD control enclosure (Figure 5) mounts toward the base of the display

structure. The enclosure typically mounts on the backside of the support column(s) within

50' (15.2 m) of the sound cabinet. Refer to the drawings listed under Mount the Cabinet

(p�6) for suggested control enclosure mounting locations.

Attach horizontal Unistrut pieces to the top and bottom rear anges of the control

enclosure with provided 5/16" hardware through the existing holes. Raise the enclosure

to the desired height, using side lift eyes or lifting straps if necessary, and then secure

with provided spring nuts and 1/2" hardware. Refer to DWG-1131068 in Appendix A for

complete hardware assembly and mounting instructions.

Electrical Installation

8

4 Electrical Installation

CAUTION – RISK OF ELECTRIC SHOCK: Only qualied individuals should perform power

routing and termination to the system. It is the responsibility of the electrical contractors

to ensure that all electrical work meets or exceeds local and national codes. Failure to

follow installation guidelines will result in audible noise on the sound system and possible

damage to internal components.

Note: This product is not provided with mains disconnect. Customer shall provide

disconnect at base of sound system location that meets or exceeds local and

national electrical codes.

Power/Signal Connections

Reference Drawings:

System Riser; 500HD ............................................................................................ DWG-980598

System Riser; Electrical & Audio Notes ............................................................. DWG-985713

Schematic; Control Enclosure 500HD-Dual 120VAC .................................... DWG-1115742

Schematic; Control Enclosure 500HD-Single 120VAC.................................. DWG-1115872

Schematic; Control Enclosure 500HD-Dual 230VAC .................................... DWG-1115891

Schematic; Control Enclosure 500HD-Single 230VAC.................................. DWG-1115896

System Riser; 500HD, Copper Signal Only ...................................................... DWG-4137275

DWG-980598 in Appendix A details power and signal connections between the ber

box, control enclosure, and sound cabinet of the Sportsound 500HD sound system. For

installations without a ber box, refer instead to DWG-4137275. Refer to Figure 11 for

component and connection locations within the control enclosure and DWG-1115742,

DWG-1115872, DWG-1115891, or DWG-1115896 for detailed wiring schematics.

Note: Use a athead screwdriver to unlock the latch on the enclosure door. A padlock

is provided with the control enclosure that may need to be removed.

Media Converter - FCC2

(A-2580)

Amp 1

(A-3922465)

Fan

(115V = B-1045)

(230V = B-1094)

Signal OUT - TBL2

(To Sound Cabinet)

Power IN -

TBL1 & GND

Amp 2

Dual Unit Only

(A-3922601)

Fiber Splice Point - FPP2

(From Fiber Conversion Box)

Line Filter

(Z-1007)

Power Supply - PWS2

(A-2238)

Analog Signal - TRX1

(From Fiber Conversion Box OR

XLR Junction Box EC-3339265)

Figure 11: Control Enclosure Components & Connections (Covers Removed)

Note: Power/signal connections should not be drilled through the top of the enclosure.

If this is unavoidable, a weather-sealed connection is required.

Electrical Installation

9

Power IN

The system requires one (1) 20 amp, 120 VAC, 60 Hz circuit;

2W + GND (or 208/230/240 VAC, 50 Hz for connection to

international voltages). Power wiring must be run in conduit

up into the bottom of the control enclosure and terminated

at TBL1. Refer to Detail “A” of DWG-980598 or DWG-4137275.

A voltage surge protector (part # A-1129) is provided

(shipped inside the control enclosure) for additional

protection at the main breaker panel. Refer to Figure 12 and

Detail “B” of DWG-980598 or DWG-4137275.

Signal IN (Fiber)

A minimum of 2-core, multimode 50-micron ber optic cable must be run in conduit from

the ber conversion box location to the sound cabinet control enclosure (FPP2). Refer to

Detail “D” of DWG-980598. If included with a Daktronics scoreboard or display, the sound

system may share a ber optic cable run, requiring additional cores.

For analog backup signal, route 1 pair, 22 AWG cable (part # W-1615) in conduit from

the ber conversion box location to the control enclosure, and terminate to TRX1.

Refer to Detail “E” of DWG-980598.

Signal IN (Analog Only)

Route 1 pair, 22 AWG cable (part # W-1615) in conduit from the XLR junction box location

to the control enclosure, and terminate to TRX1. For XLR junction box termination, refer to

Detail "C" of DWG-4137275; for TRX1 termination, refer to Detail "D".

Speaker OUT

IMPORTANT: Improper wiring will result in damage to the internal circuitry of the product,

and pose a potential re hazard!

1� Open the far right rear access door (Figure 13) of the sound cabinet. Turn all latches

a 1/4 turn using a athead screwdriver (older latches can be turned with ngers). Tilt

the top of the door away from the cabinet. With the door tilted, use the handle to lift

it up and out of the door frame.

2� Inside the sound cabinet is a coiled 50’ (15.2 m) speaker cable. Run this cable in

conduit out the bottom of the sound cabinet and up into the bottom of the control

enclosure.

3� Connect each speaker cable to its designated terminal on TBL2, noting the proper

polarity when wiring them. Conrm the proper connections by referring to Detail “A”

of DWG-980598.

Note: To prevent the possibility of short circuits, strip each wire 8 mm and tighten the

screw connection terminal to a minimum torque of 0.6 Nm.

Figure 12: Surge Protector

Speaker Cables

Located Behind

This Door

Figure 13: Sound Cabinet Access Doors, Rear View

Electrical Installation

10

Grounding

All components of an audio system – including but not limited to control equipment,

and connected peripheral equipment – must be electrically grounded. Only qualied

individuals may perform electrical work, including verication of ground resistance.

Daktronics is not responsible for improper grounding or damage incurred as a result of

improper grounding.

Grounding methods must meet the provisions of all applicable local and national codes.

Inspect and verify all grounding methods meet the provisions of all applicable local and

national codes.

Proper grounding is necessary for reliable equipment operation and general electrical

safety. Failure to properly ground the sound system may void the warranty, disrupt

operation, damage equipment, and cause bodily harm or death.

Lightning Protection

The use of a disconnect near the system to completely cut all current-carrying lines

signicantly protects the circuits against lightning damage. In order for this device to

provide protection, the power must be disconnected when the system is not in use.

Fiber Conversion Box Connections

Reference Drawings:

System Riser; 500HD ............................................................................................ DWG-980598

Audio; Sportsound, Fiber Box Schematic....................................................... DWG-1095894

IMPORTANT NOTES:

• The ber box shall not be exposed to dripping or splashing, and no objects lled with

liquid shall be placed on the ber box.

• The ber box consists of Class 1 construction and shall be connected to a mains

socket outlet with a protective earth-ground connection.

• The ber box utilizes a power cord with wiring inlet as a means for disconnection from

power. This means of disconnection shall remain readily operable in all cases.

Refer to Figure 14 for external ber conversion box connections and Figure 15 for internal

connections and component locations. Note that the ber box is not included in analog-

only systems.

Refer to Detail “C” in DWG-980598 for analog backup connection and Detail “D” for ber

connection. DWG-1095894 provides a detailed wiring schematic.

120/240 VAC

Power IN

Fiber & Analog OUT

(To Control Enclosure)

XLR Audio IN

(From Source)

Figure 14: External Fiber Conversion Box Connections

Electrical Installation

11

Analog Backup - SWT2

(To Control Enclosure)

Fiber Splice Point - FPP1

(To Control Enclosure)

Power Supply - PWS1

(A-2238) Media Converter - FCC2

(A-2580)

Analog to Digital

Converter - ADC1

(A-2898)

Figure 15: Internal Fiber Conversion Box Connections & Components (Cover Open)

Maintenance

12

5 Maintenance

Grille Maintenance and Cleaning

To allow maximum acoustic transparency, the front of the cabinet contains a PVC mesh

grille. Do not apply anything to the surface that may obstruct the holes in the material. To

maintain the brightness of the colors and prolong the life of the grille, periodic cleaning is

necessary. Failure to clean periodically may result in permanent discoloration or staining.

When cleaning, use a mild soapy solution (Dove®, Ivory®, etc.) and a very soft brush,

moving in a circular motion. Rinse with clean water using normal faucet pressure.

Do not use a power washer�

Grille Mesh Replacement

Reference Drawings:

Mesh Layout; SS500HD ....................................................................................... DWG-983398

If the grille mesh fades or tears over time,

or if new graphics/logos are desired, it may

be replaced. Only qualied sign companies

should be used to replace the grille mesh.

Refer to DWG-983398 for mesh layout.

Contact Daktronics for mesh reordering.

1� Remove Mesh Frame

The front of the sound cabinet has a

removable aluminum frame that secures

the grille mesh. This frame is attached to

the sound cabinet with a total of eight (8)

3/8” hardware sets, with four (4) sets at

both the top and bottom of the frame.

a� Carefully remove all mounting

hardware and safely lower mesh frame to the

ground. Set the frame on a level surface large

enough so that the weight is supported by the

aluminum frame and not on the mesh.

b� Loosen the cover screws using a square driver

and remove the cover.

2� Remove Tension Clips

Insert the tip of a standard athead screwdriver

into the recess located at the backside of

the tension clip (Figure 16). Rotate or tilt the

screwdriver to separate the tension clip teeth away from the frame. This will allow the

tension clip to be removed from the frame by prying or pulling it up and out.

Slide the mandrel out of the tension clip to release the mesh.

3� Attach New Mesh

When ordered through Daktronics, the mesh has a line with a series of tick marks

printed on the front (Figure 17). These tick marks indicate the location of the tension

clips and mandrels.

Push screwdriver

into recess on back of

Tension Clip and rotate/tilt

Figure 16: Removing Tension Clips

Figure 17: Tick Marks on Mesh

Maintenance

13

a� Place a mandrel, smooth side up, centered on

the tick mark.

b� Fold the mesh around the mandrel. Ensure the

groove in the mandrel is towards the inside of

the mesh (Figure 18).

c� Snap a tension clip over the mandrel and

mesh (Figure 19). Do not try to drive both ends

of the clip down onto the mandrel and fabric

at the same time; snap one end down and

then the other.

d� Continue to place a mandrel and tension clip

on every tick mark.

e� Lay the mesh across the frame and snap each

clip into the tension channels (Figure 20).

f� Pull on the corners of the mesh to remove any

wrinkles. When pulling on the fabric, do not pull

directly on the fabric ap or tension clip, or the

clip may pop off. When pulling on the face,

grasp the fold and pull the face into place.

g� Use the tensioning tool provided with the mesh

replacement kit (part # 0A-1561-0028) to drive

the tension clips into the tension channels

(Figure 21). Start with one or two clicks.

h� Work around the frame, tightening down

all the tension clips until all the wrinkles are

removed and the mesh is properly taut. Do not

over-tension! This may cause damage to mesh

graphics. Apply just enough tension to achieve

a smooth, at surface.

i� Place the radius covers

on the end of the mesh

frame and tighten the

set screws on the radius

cover.

4� Reattach Mesh Frame

Safely lift mesh frame back

in place on the front of the

sound cabinet and attach

with the eight (8) 3/8"

hardware sets. Ensure the

frame is snug tight against

the cabinet.

Figure 18: Folding Mesh

Figure 19: Attach Tension Clip

Figure 20: Clips in Channels

Tensioning Tool

1. Hook tip under

outside frame rail.

2. Use handle to apply

downward force on clip.

Mesh

Mesh Frame

Figure 21: How to Use Tensioning Tool

Maintenance

14

Control Enclosure Maintenance

Performing preventative maintenance will ensure proper air circulation to internal

components. How much maintenance is required depends on the surrounding

environment.

Filters

One lter is located on the inside bottom door panel

(Figure 22) and another is located in the hood

above the door panel. Remove the lters and clean

with warm, soapy water and dry gently. Check the

lters for signs of damage such as tears, cuts, and

excessive wear from the environment. If necessary,

order a new lter (Hoffman®part number WFF1 – visit

www.hoffmanonline.com).

Fan

A fan is located inside the top of the enclosure

(Figure 23). When checking the lters, clean

the fan blades with compressed air. If the fan is

making excessive noise or squealing after cleaning,

replace it.

Thermostat

A thermostat next to the fan controls when to turn

it on (Figure 23). To test the thermostat, rotate the

temperature dial to the current air temperature

and verify the fan starts. If the fan does not start,

replace it and the thermostat. After checking/

replacing the thermostat, be sure to set the

temperature dial back to 85–95° F (29–35° C).

Figure 22: Filter inside Door Panel

Figure 23: Fan & Thermostat

Troubleshooting

15

6 Troubleshooting

This section lists potential problems with the system, indicates possible causes, and

suggests corrective action. This list does not include every possible problem, but it does

represent some of the more common situations that may occur.

Note: Be sure to power on the audio control rack, ber conversion box, and cabinet

breakers. Make sure all connections from source to the cabinet are intact.

Symptom/Condition Possible Cause Solution/Items to Check

No power to audio cabinet;

green indicator light is off on

bottom of control enclosure

Breaker is off at sign Turn breaker ON.

Bad power supply Order a new power supply

(part # A-2238).

No audio from cabinet, but

signal can be heard through

headphones or a monitor

speaker

No power at cabinet Turn breaker ON.

Fiber conversion box is

unplugged from wall outlet or

cable to audio control rack

Plug in ber conversion box

power/signal.

Analog signal out of the

mixer is not being correctly

converted to a digital signal

Set the ber box ANALOG

BACKUP switch (Figure 35) to

ANALOG and see if problem

goes away.

No ber connection to

cabinet; ber link down

Verify the Port 1 (100M) LED on

the media converter is solid

green (Figure 33-2).

Swap TX-RX bers to x link.

Replace ber splice, repair

ber termination/cable.

Isolation transformer failure

(ANALOG BACKUP enabled)

Check the isolation transformer

in the control enclosure. Refer

to the Isolation Transformer

Troubleshooting Guide

(DD3417357), located online at

www.daktronics.com/manuals.

Mufed audio from cabinet

(but clear though headphones

or a monitor speaker)

Bad digital connection

Open CobraNet Discovery

and check for errors. Refer to

System Testing (p�17).

Bad driver or amplier

Perform a system check via

Monitor Application. Refer to

System Testing (p�17).

Troubleshooting

16

Symptom/Condition Possible Cause Solution/Items to Check

Weak (low level) audio from

cabinet

Low level source Ensure output from the mixer is

professional line level.

Analog signal out of the

mixer is not being correctly

converted to a digital signal

Set the ber box ANALOG

BACKUP switch (Figure 35) to

ANALOG and see if problem

goes away.

Improper gain at Analog to

Digital Converter (in ber box)

Adjust gain according to

Biamp Audia Input & Output

Expanders Operation Manual

in Appendix B.

Poor sound quality from audio

cabinet (distortion)

Poor source material (CD or

MP3 with heavy compression

or distorted material)

Use high quality audio les

(.wav).

Clipping audio at source

(audio control rack) output

Bring source level down below

clip.

Bad driver or amplier

Perform a system check via

Monitor Application. Refer to

System Testing (p�17).

Intermittent audio from audio

cabinet

Bad ber connection

Set the ber box ANALOG

BACKUP switch (Figure 35) to

ANALOG and see if problem

goes away.

Amplier modules are over

driven into protect mode Reduce source output level.

Bad amplier module

Open CobraNet Discovery

and check for errors. Refer to

System Testing (p�17).

Analog to Digital Converter (in

ber box) failure

Refer to Input/Output Expander

(p�22).

Low level (-20dB)

(ANALOG BACKUP enabled)

Increase source output level

above -20dB.

Humming/buzzing from audio

cabinet Ground loop

Disconnect ground at

isolation transformer in the

control enclosure. Refer to

Audio System Humming

Troubleshooting (DD3448287),

located online at

www.daktronics.com/manuals.

For more troubleshooting steps, refer to the appropriate audio control rack manual.

Daktronics SPORTSOUND 500HD User manual

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