Daktronics Sportsound 2000hd User manual

201 Daktronics Drive

Brookings, SD 57006-5128

www.daktronics.com/support

800.325.8766

SPORTSOUND®2000HD

AUDIO SYSTEM

INSTALLATION MANUAL

P1340

DD1798478

Rev 12

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

Amplier Components��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 ��7

4 Electrical Installation ��8

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

Power IN ��9

Signal IN ��10

Grounding ��10

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

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

5 Maintenance��12

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

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

6 Troubleshooting ��15

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

Audio Control Rack��17

Fiber Conversion Box ��17

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

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

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

High-Frequency Driver (A-2302) ��19

Mid-Frequency Driver (A-2305) ��20

Low-Frequency Driver (A-2306) ��21

Amplier Troubleshooting and Replacement .................................................................................22

Media Converters...............................................................................................................................23

Typical Component Settings ��23

Verifying Network Activity ��23

– ii –

Table of Contents

Input/Output Expander .....................................................................................................................24

Typical Component Settings ��24

Verifying Network Activity ��24

Checking for Input Signal ��24

Checking for Output Signal��25

Replacement Parts.............................................................................................................................25

Sound Cabinet��25

Fiber Conversion Box ��25

7 Daktronics Exchange and Repair & Return Programs ��26

Exchange Program ............................................................................................................................26

Repair & Return Program...................................................................................................................27

Daktronics Warranty & Limitation of Liability ...................................................................................27

A Reference Drawings ��29

B Supplementary Manuals��43

C Daktronics Warranty & Limitation of Liability��45

Introduction

1

1 Introduction

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

2000HD 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�26). 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�25), use

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

Exchange and Repair & Return Programs (p�26) 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 2000HD audio system consists of the following elements:

• Sound Cabinet

• Fiber Conversion Box

• Audio Control Rack

• Signal Cables

Sound Cabinet

The Sportsound 2000HD sound

system cabinet (Figure 3) is 6'-0"

(1829 mm) high, 22'-0" (6.71 m)

wide, and 3'-6" (1067 mm) deep.

It is composed of a steel skeleton

sheeted in custom aluminum

paneling with eight rear access

doors. The cabinet is powder coat

black with a wrinkle nish.

Grille

Reference Drawing:

Mesh Layout; 2000HD Gen II ............................................................................. DWG-983337

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 5'-4.75" (1645 mm) high by 21'-9" (6.63 m) wide.

Drivers

Three different types of drivers (also known as speakers) are used in the sound cabinet

(Figure 4):

• 12" (381 mm) low frequency drivers: Daktronics part # A-2306

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

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

A-2306 A-2305 A-2302

Figure 4: 2000HD Drivers

Note: All products in this system are tested individually for

product safety approval.

Figure 3: 2000HD Sound Cabinet with Grille

Sound System Components

4

Amplier Components

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

2000HD sound system utilizes ten (10) power ampliers 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.

Fiber Conversion Box

The ber conversion box (Figure 5) converts the analog

audio signal from the audio control rack into ber optic

signal that goes out to the sound cabinet. 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 2000HD 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 the sound cabinet. 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 sound cabinet for analog

backup (part # W-1615)

• 50' (15.2 m) ber patch cable from ber splice box to sound cabinet (part # W-1512)

Figure 5: Fiber Conversion Box

Mechanical Installation

5

3 Mechanical Installation

A qualied technician must install the Sportsound 2000HD sound system cabinet. 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 100' (31 m) behind the goal post to provide

coverage for seating from goal to goal.

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

Reference Drawings:

Shop Drawing; Sound System; 2000HD ............................................................ DWG-330901

Mechanical installation consists of lifting and mounting the Sportsound 2000HD cabinet

onto an existing support structure. Refer to DWG-330901 in Appendix A.

Lift the Cabinet

The Sportsound 2000HD cabinet is shipped with four (4) 5/8" lift eyes for lifting it into place

(Figure 6).

Note: The two smaller front lift eyes are meant only for removing the grille frame and not

for lifting the cabinet. Refer to Grille Mesh Replacement (p�12).

Three (3) shipping brackets are installed to the top of the cabinet for shipping purposes

only. Each bracket is attached to the cabinet with two (2) 1/2" hardware sets. Remove all

shipping brackets prior to lifting and installing the cabinet.

Grille Frame

Eyebolts @2

Cabinet Eyebolts @4

Shipping Brackets @3

Figure 6: Eyebolts & Shipping Brackets

Mechanical Installation

6

Whenever possible, use a spreader bar, or lifting bar, to lift the cabinet. Spreader bars

ensure force on the eyebolts remains straight up, minimizing lifting stress.

Figure 7 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.

Cables and chains attached to the eyebolts and

directly to a center lifting point, as shown in the

"Acceptable" example in Figure 7, 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 8.

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 5/8" bolts to plug the holes.

Mount the Cabinet

Reference Drawings:

Shop Drawing; Sound System; 2000HD ............................................................ DWG-330901

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. Weld the cabinet’s bottom members to the structure at the locations

indicated on the shop drawing. Refer to DWG-330901 in Appendix A for mounting

requirements.

Preferred

Lifting Bar 45° Minimum

Acceptable

Figure 7: Lifting Methods

Acceptable Unacceptable

Figure 8: Eyebolt Plane Load

Mechanical Installation

7

Aim the Speakers

Reference Drawings:

Speaker Adjustment Chart; 2000HD............................................................... DWG-1023805

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

direction of the speakers for the individual facility. DWG-1023805 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).

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. Several disconnect switches may be required to de-

energize the equipment before servicing.

Note: The control enclosure, located in the sound cabinet, shall not be exposed to

dripping or splashing, and no objects lled with liquid shall be placed on the

control enclosure.

Power/Signal Connections

Reference Drawings:

System Riser; 2000HD .......................................................................................... DWG-984140

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

Schematic; Control Enclosure/Sound Cabinet 2000HD............................... DWG-1082599

DWG-984140 details power and signal connections of the Sportsound 2000HD sound

system. To gain access to internal power and signal connection points, open the far right

rear access door (Figure 9). 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 doorframe.

Note: To remove the front grille frame, refer to Grille Mesh Replacement (p�12).

Power/Signal

Connections

Behind This Door

Figure 9: Sound Cabinet Access Doors, Rear View

To access the internal components of the control enclosure, turn both cover latches a

1/4 turn using a athead screwdriver, and then pull the cover away from the enclosure.

Refer to Figure 10 for component and connection locations within the sound cabinet

and control enclosure and DWG-1082599 in Appendix A for a detailed wiring schematic.

Electrical Installation

9

TX RX

Media Converter - FCC2

(A-2466)

Power IN -

TBL2 & GND

Fiber Connection

(From Fiber Conversion Box

or Fiber Splice Box)

Front Isometric View

(with grille removed)

High-

Range

Speaker

Cabinet Mid-Range

Speaker

Cabinet

Low-Range

Speaker

Cabinet

Power Supply - PWS2

(A-2238)

Line Filter

(Z-1007)

Transformer - TRX1

(T-1130)

Analog Backup Connection

(From Fiber Conversion Box)

Figure 10: Sound Cabinet & Control Enclosure Components (Covers Removed)

Power IN

The system requires three (3) 20 amp 208/230/240 circuits (50

or 60Hz); 2W + GND. Power wiring must be run in conduit up

into the bottom of the sound cabinet and terminated at TBL2.

Refer to Detail “F” of DWG-984140.

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

additional protection at the main breaker panel. Refer to

Figure 11 and Detail “G” of DWG-984140.

Figure 11: Surge Protector

Electrical Installation

10

Signal IN

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

from the ber conversion box location and terminated in a ber splice box near the

sound cabinet. Fiber patch cables (part # W-1512) will then run in conduit to the control

enclosure media converter (FCC2). Refer to Detail “C” and Detail “E” of DWG-984140.

If there is no ber splice box, the ber is terminated directly to the media converter. If

included with a Daktronics scoreboard or display, the sound system may share a ber

optic cable run, requiring additional cores.

For the analog backup signal, 1 pair, 22 AWG cable (part # W-1615) must also be run in

conduit from the ber conversion box location to the sound cabinet control enclosure

(TRX1). Refer to Detail “E” of DWG-984140. The analog backup cable may pass through,

but not terminate in, a ber splice box.

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; 2000HD .......................................................................................... DWG-984140

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 12 for external ber conversion box connections and Figure 13 for internal

connections and component locations.

Refer to Detail “A” in DWG-984140 for analog backup connection and Detail “B” for ber

connection. DWG-1095894 provides a detailed wiring schematic.

Electrical Installation

11

Fiber & Analog OUT

(To Fiber Splice Box / Control Enclosure)

120/240 VAC

Power IN

XLR Audio IN

(From Source)

Figure 12: External Fiber Conversion Box Connections

Analog Backup - SWT2

(To Control Enclosure)

Fiber Splice Point - FPP1

(To Fiber Splice Box)

Power Supply - PWS1

(A-2238) Media Converter - FCC2

(A-2580)

Analog to Digital

Converter - ADC1

(A-2898)

Figure 13: 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; 2000HD Gen II ............................................................................. DWG-983337

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-983337 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 (Figure 14).

Attach to both lifting

points before removing

mounting hardware!

Figure 14: Grille Frame Removal (1500HD cabinet shown)

a� Attach cables or chains to both eyebolts on the grille frame. Follow the lifting

guidelines in Cabinet Installation (p�5).

b� Remove all mounting hardware. The frame is attached to the sound cabinet with

a total of twenty (20) 3/8" hardware sets, with ten (10) sets at both the top and

bottom of the frame.

c� Safely lower the 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.

d� Loosen the screws on the radius cover using a square driver and remove.

Maintenance

13

2� Remove Tension Clips

Insert the tip of a standard athead

screwdriver into the recess located

at the backside of the tension clip

(Figure 15). 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 16). These tick marks indicate

the location of the tension clips and mandrels.

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 17).

c� Snap a tension clip over the mandrel and mesh (Figure 18). 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.

Push screwdriver

into recess on back of

Tension Clip and rotate/tilt

Figure 15: Removing Tension Clips

Figure 16: Tick Marks on Mesh

Figure 17: Folding Mesh

Figure 18: Attach Tension Clip

Maintenance

14

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 19).

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-1340-2032) to drive

the tension clips into the tension channels

(Figure 20). 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 twenty (20) 3/8" hardware sets. Ensure the frame is snug tight against the

cabinet.

Figure 19: Clips in Channels

Mesh

Tensioning Tool

Mesh

Frame

Tension Clip

1. Hook tensioning tool tip

into outside frame rail.

2. Use handle to apply

downward force on clip.

Figure 20: How to Use Tensioning Tool

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 30) 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 28-2).

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 30) 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 30) 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�24).

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 2000HD User manual

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