Daktronics Scoreboard Dual Hoist User Manual

Scoreboard Dual Hoist

Operation & Maintenance Manual

Job #

Arena

City, State

DD1704265 Rev 3—17 July 2013

201 Daktronics Dr. P.O. Box 5128 Brookings, SD 57006-5128
tel [phone] fax [phone]
www.daktronics.com/rigging email [e-mail]

DD1704265

Project/Contract #

Rev3—17 July 2013

CONTRACT NUMBER __________________________________________
FACILITY NAME _______________________________________________
FACILITY ADDRESS _____________________________________________
_____________________________________________
FACILITY CONTACT NAME ______________________________________
EMAIL/PHONE #______________________________________
SYSTEM INSTALL DATE __________________________________________

daktronics, inc.

Copyright © 2012

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.

All trademarks are property of their respective companies.

Table of Contents

Section 1: Theory of Operation ....................................................................................................1

Section 2: S Controls with Leveling .............................................................................................3

2.1 S Controls with Leveling Overview .......................................................................................... 3

Section 3: Push Button Controller ...............................................................................................5

3.1 Description .........................................................................................................5

3.2 Keep Load Levels Aligned .....................................................................................5

3.3 Power up ............................................................................................................5

3.4 Basic Hoist Operation ..........................................................................................5

3.5 To Move an Individual Hoist (refer to Figure 1) ........................................................6

3.6 Description and Operation of Indicator Lights ...................................................................... 6

Section 4: Troubleshooting Guide ...............................................................................................7

Section 5: System Maintenance ...................................................................................................9

5.1 Preventative Maintenance .....................................................................................9

5.2 Supplies ..........................................................................................................10

Other .........................................................................................................10

5.3 Maintenance Process ..........................................................................................11

Check connection points ...............................................................................12

Loft Block Maintenance .................................................................................13

Turnbuckle Maintenance ...............................................................................13

Hoist Brake Adjustments ................................................................................13

Check brake pad wear.....................................................................................................14

Section 6: Warranty .....................................................................................................................17

Table of Contents i

Section 1: Theory of Operation

Each Vortek hoist is connected to the main high voltage power buss through a safety twist-locking plug.
This plug brings in the main 208 or 480 VAC (refer to system riser), 3-phase power that is connected to
the motor contactors and motor brake located in each hoist assembly. The high voltage power originates
in the master control cabinet. Also connected to each Vortek hoist assembly through a safety locking
connector are 24-volt DC control and E-Stop circuit.

The reversing contactors control all movements of the hoist. Each S Series Vortek hoist with Push Button
Control runs in open loop and is controlled at the main Master Control Cabinet (MCC) via momentary
push buttons. Each hoist is protected via hardwired up and down control signals, hard struck limit
switches, emergency stop status and optional over/under capacity sensors. The up and down control
signals determine which contactor to energize for direction to run the hoist. The limit switches are used
for maximum up and down travel. The emergency stop status is used to detect the operation of the
emergency stop system and the optional over/under capacity sensors will insure that the hoist is being
operated within its designed capacity.

Housed within the MCC is a 24-volt DC power supply that powers the control circuit and the e-stop
circuit. A fused disconnect and a master control contactor are also mounted inside the master control
cabinet.

The 24-volt DC E-Stop circuit is connected to the E-Stop button located on the front of the MCC as well as
the E-Stop button located on the pendant, if applicable.

Theory of Operation 1

Section 2: S Controls with Leveling

Warning: The Vortek hoists are not designed to raise and lower people. These
hoists should NEVER be used for this purpose.
If it is necessary to operate a hoist from a location where the operator’s view
of the moving load is obstructed, a second person must be used to observe the
load and communicate to the operator

2.1 S Controls with Leveling Overview

The Vortek hoist system is a dead-haul system meaning that the load is not counter-weighted. Each hoist
can lift loads only up to the design capacity. Overloading will result in electrical and electronic overload
protection shut down of the hoist and possible damage to rigging components.

Each hoist system consists of an integral electric motor driven reducer, directly coupled to a cable drum,
which winds steel cables (wire ropes) leading over sheaves installed within the hoist assembly and along
the structural steel of the building.

The Daktronics S Series controlled hoist system consists of three basic parts.

• Power Panel Assembly housing reversing contactors and control circuitry

• Winch Assembly (cable drum, load brake, limit switches, frame)

• Master Control Cabinet (MCC) and Standard Controller, if applicable.

1. The power panel assembly is located at the end of each Vortek motorized hoist. There
is a resettable circuit breaker located at each power point on the High Voltage wireway
that also serves as a safety disconnect. The rated twist-locking plug on each unit also
acts as a main high voltage disconnect.

2. The Vortek hoist assemblies are mounted on the rigging steel at the top of the stage
house. The gear motor, helically grooved cable drum, support bearing and frame
structure are all factory assembled and tested. On each hoist assembly is one set of
hard struck limit switches. These limits are the upper ultimate limit and lower ultimate
limit. These limit switches are adjusted by factory-trained personnel at the factory and

are ne tuned on site by the installer during installation and commissioning of the

system. There is also one set of over travel limits. Each hoist assembly is also equipped
with a LOAD BRAKE, a unique safety feature provided exclusively by Daktronics. This
unit is designed to engage automatically when the load is being lowered.

3. Control of each hoist is possible from the MCC located such that a clear line of site can
be achieved.

4. The MCC contains the main system disconnect, master control contactor, control voltage
power supply and control buttons.

5. Please see the Controls Operating portion of this manual for the operating procedures.

S Control with Leveling 3

Section 3: Push Button Controller

3.1 Description

The Daktronics S Series Controller with leveling is a special 2-hoist set designed to work together as
one unit to lift a lightweight scoreboard. The S Series Controller with leveling are similar to the S Series
controls. The MCC contains a “LEVEL ADJUST” switch for each Vortek hoist on the system, a main “Power
On” key switch, “RAISE” and “LOWER” buttons, an “Emergency Stop” button located on the bottom
of the MCC, and indicator lights for “POWER ON”, “OVERTRAVEL FAULT”, “MAJOR LEVEL FAULT”,
and “LEVEL LOW FAULT” lights for each hoist. A lockable main power disconnect handle will also be
accessible on the front of the MCC for the removal of all power from the system. The optional handheld
pendant controller will contain “REMOTE/LOCAL” to the desired position and a locking “Emergency
Stop” buttons along with indicator lights for “ACTIVE” and “Emergency Stop”. The handheld pendant
should be used where proper Line-of-Site is not feasible from the location of the MCC.

Only trained and authorized personnel should be permitted to operate the hoist system. Unauthorized
use, alteration, or use of the hoist system for purposes other than those for which it was designed may
cause injury to persons, damage to the hoist, or create conditions which could lead to fatalities. All
proper safety considerations must be observed.

3.2 Keep Load Levels Aligned

If the hoisting system is operating two (2) hoists to pick up one load there must be means to adjust the
level of either hoist to match the other in the event that they become misaligned. If this happens, one
hoist could possibly see more load than its intended capacity.

3.3 Power up

Turn on the main disconnect switch located on the front of the master control cabinet and then turn
the key switch on. The green power light should now be
illuminated. If the green power light does not illuminate,
check to make sure that the E-Stop buttons are not pressed
(Figure 1).

If the red light stays illuminated, then one of the over travel
limits has been engaged, please contact Daktronics for
instructions on resolving this issue.

3.4 Basic Hoist Operation

The MCC is the single point of operation for the Daktronics
S Series control system.

There is one master “RAISE” and “LOWER” button located
on the MCC along with an “LEVEL ADJUST” selector switch
for each hoist on the system. There is an E-Stop button
located on the bottom of the MCC as well.

To raise a hoist press and hold the “RAISE” button. The hoist will then run at full speed in the up
direction. The hoist will run until the button is released and/or the hoist reaches its upper hard struck limit
switch.

Figure 1: S Series Controller

Push Button Controller 5

To lower a hoist press and hold the “LOWER” button. The hoist will then run at full speed in
the down direction. The hoist will run until the button is released and/or the hoist reaches its
lower hard struck limit switch.

During installation and setup, the two hoists and the load are installed and leveled and the position
indicator should be set and both match in height (Figure 1).

If one of the two hoists becomes approximately 2.0° out of level the “LEVEL LOW FAULT’ indicator will
light. At this point the low hoist should be raised to correct this matter. Or conversely, the high hoist can
be lowered to match the low hoist.

3.5 To Move an Individual Hoist (refer to Figure 1)

1. Turn and hold the self-centering ‘LEVEL ADJUST’ switch to the hoist needing adjustment.

2. Press the ‘RAISE’ or ‘LOWER’ push button controls until the ‘LEVEL LOW FAULT’ indicator

goes out.

If there is a “MAJOR LEVEL FAULT”, absolutely no further movement of the
hoists will be possible. Please contact Daktronics for help in resolving this
issue.

Note: It is not possible to lower a hoist that is in ‘LEVEL LOW FAULT’.

For example; if a Hoist 1 ‘LEVEL LOW FAULT’ occurs, Hoist 1 can be raised or Hoist 2 can be

lowered. Software prevents the lowering of Hoist 1 or the raising of Hoist 2 to prevent making
the “Out of Level” problem worse.

When operating each hoist, the hoist should always be allowed

to come to a complete stop before reversing directions.
On systems where the optional Over/Under capacity sensors
are present, there is a programmed time delay of one second
between the hoist's ability to change directions.

If any problems arise during any hoist motion, depress the Emergency Stop

button located on the control panel or the Master Control Cabinet.

3.6 Description and Operation of Indicator Lights

“POWER ON”: Indicates that Main Disconnect is turned on and the “System Enable” key switch
is also enabled.

“OVERTRAVEL FAULT”: Indicates that any one of the hoists has traveled too far and is causing a
‘Ground Out’ condition. In the unlikely event when this light is illuminated NO hoist will operate.
Please call Daktronics for help on resolving this issue.

“MAJOR LEVEL FAULT”: If this were to light up, contact Vortek for help.

“LOW LEVEL FAULT”: Indicates one of the two hoists is approximately 2.0° out of the level.

“EMERGENCY STOP”: Indicates the E-Stop button was pressed.

6 Push Button Controller

Section 4: Troubleshooting Guide

SYMPTOM POSSIBLE CAUSE CORRECTIVE ACTION

Green Power Light is NOT ON Main Power Turned Off Turn on Main Disconnect

E-Stop Button Pressed Release E-Stop Button

Key Switch Turned Off Turn on Key Switch

Overtravel Light is ON Over Travel Limit Reached Check Over Travel Limits

Overtravel Light is Flashing Over/Under Capacity (if load

sensing option is included)

Vortek hoist will not move when
commanded

Main Power Turned Off Turn on Main Disconnect

E-Stop Button pressed Check all E-Stop buttons

Motor overloaded Wait for automatic reset

Hoist has reached limit switch Move hoist in opposite

Reset Circuit tripped on
wireway

Conrm that load is within
the capacity of the hoist

direction of travel

Reset circuit breaker

Troubleshooting Guide 7

Section 5: System Maintenance

5.1 Preventative Maintenance

In order to maintain a safe and efcient hoist system, it is necessary to implement a regular
and continual preventative maintenance program. Listed below are the critical areas of the
hoist system that need consistent review, inspection, and/or correction. This list is a guideline
to assist in establishing a maintenance program, but cannot replace ongoing visual inspection
by operating personnel. Daktronics should be contacted immediately if any irregularities are
found.

To prevent accidents, injuries, or failures Daktronics recommends a professional inspection at
least once each year. Vortek offers the most thorough preventative maintenance program in
the motorized rigging industry. This
program will be offered to facility management after your hoist installation is complete.

The system should be run for a minimum of 2 minutes every month in order to ensure

proper lubrication. Neglect may result in damage to the rigging system.

Periodic inspections when operating the hoist should include the following:

SWAGED CONNECTORS: Look for wire rope damage where the swaged

connector contacts the cable. Check for broken cable strands.

TURNBUCKLES: Check that cotterpins and pin nuts, or bolts and nuts are in place and
secure. Check that pins in jaws are not bent. If bent pins are found, the set has been over­loaded and should be inspected professionally for more serious damage.

WIRE ROPE: Check for worn areas, kinks, broken wire strands, or any deformation. Examine
cable runs for any obstructions or sources of abrasion. Excessive dirt will shorten the life of the
cable. If cable has begun to rust it must be replaced immediately.

REDUCERS: Check for visible oil leaks. If any noticeable oil leaks occur, please call
Daktronics immediately.

BRAKEMOTORS: Listen for unusual noises such as squeaking or grinding which may
indicate the need for lubrication or brake adjustments. Call a Daktronics service representative
for any brakemotor service [phone].

ELECTRICAL: Check to ensure that electrical ex connections are secure and that no wires or
connections have been pulled apart. WITH ALL POWER OFF, open starter cabinets and verify
that wires are clean and orderly. Check that all cabinet doors are properly secured prior to
energizing.

HOIST ASSEMBLY: Check that all cables are smoothly wrapped on drum. Cables should
not climb over adjacent wraps. If excessive dirt is accumulating on drum, steps must be taken
to remove and prevent this accumulation.

NOTE: Not all items discussed in this maintenance manual may be required for every
installation. Contact Daktronics for specic information.

System Maintenance 9

5.2 Supplies

The Vortek hoist is designed for years of trouble-free service and maintenance servicing
is enhanced by the design. The components used in the Vortek hoist are industrial and
engineered for 24/7 usage (hoists rated 25% duty cycle) and require very little maintenance
aside from some biannual lubrication.

Supplies Needed

All supplies are available at most hardware stores.

White Lithium Grease for the
Acme screw (spray or hand applied)

3-in-1 oil for the drum shaft

Blue shop towels for cleaning and applying oil

Air duster for blowing out control panel (if required)

10 System Maintenance

5.3 Maintenance Process

Access to the onstage portion of the hoist will be needed to do part of the maintenance work
and also on the offstage side at the electrical cabinet.

Electrical cabinet

1. Remove these two 5/32" Allen head screws that are at the onstage end of the hoist. This is a
cover for both the Drum Shaft and the Acme Screw. The cover does not have to completely
removed, simply pull it down out of the channels.

Drum Shaft & Acme Screw Location

Drum Shaft

Acme Screw

The end view that is visible of the Drum Shaft and Acme Screw without covers.

2. Taking a Blue Shop towel or clean towel, spread a small amount of the 3-in-1 oil onto the
towel and wipe it on/over the Drum Shaft using this rst towel to clean the shaft of dust and
grit. Use a second towel that is liberally anointed with the 3-in-1 oil to lubricate the shaft,
making sure to wipe all around the shaft.

3. Always use a clean towel when doing the rst wipe down on the Drum shaft to avoid
spreading the grime from unit to unit.

4. Lubricating the Acme Screw is similarly just as easy. One difference is that you want as much
of the screw showing as possible. To achieve this, raise the batten to its highest point of travel.
Take another Blue Shop Towel as a backing towel to prevent overspray and spray the Acme
Screw with White Lithium lubricant. Just one quick pass usually sufces for lubricating this
screw.

System Maintenance 11

5. Next and last step is blowing out the dust from the electrical enclosure with the compressed

air.

Turn off power at the circuit breaker and unplugging the communications plug
from the top of the Vortek hoist to make it safe to open up the enclosure.

Using the same 5/32" hex key, remove the 2 Allen head screws from the top of the

electrical enclosure and swing down the cover.

Hint: pushing the cover up at the curved hinges while swinging
the cover down will help in opening the enclosure.

When this step is completed, replace the cover making sure to t
the cover into the channels on the aluminum backbone.

Push up here on hinge

Using a low to medium pressure air stream, gently blow any dirt and dust
bunnies from the ventilation holes from both sides of the drive inverter.

Note: Safety glasses should be worn during this procedure.

Re-install the cover to complete this maintenance portion of the Vortek hoist.

Check connection points

Check the attachment connections for the hoist to the structural
steel.

These two 9/16" hex head bolts will need to be checked
for torque values of 17-20 ft/lb.

Check both sets of clamps.

Check the nuts on the backbone stiffeners for tightness.

12 System Maintenance

3/4” Hex Nut

Loft Block Maintenance

The Vortek Loft Block has sealed bearings and usually needs
minimal maintenance but the mounting hardware should be
checked and a few other simple inspections will sufce.

Axle “Circlip”
(check both sides)

Look to see that all of the plastic covers are snapped into place.

The loft block should be free to swing in both a side to side motion and up/down to a small
extent.

Locknuts

Check for proper torque on the beam clamp bolt and nut. This
should be 17-20 foot/pounds of torque using a torque wrench
to conrm.

There are ‘Circlips’ on both sides of the 2 axles on the loft
block. Check to make certain that the clips are seated in the
groove on the axle.

Turnbuckle Maintenance

Turnbuckle maintenance requires checking the locknuts to make sure they are
tight to prevent the turnbuckle from loosening or, if your turnbuckles do not
have locknuts then make sure that they are moused.

Hoist Brake Adjustments

Occasionally the secondary mechanical brake may need some minor adjustment to alleviate
noise that could occur.

Remove the Locknut from here, and allow cover to swing down.

The view when the motor cover is opened so that the brake can
be adjusted.

The locknut on the secondary mechanical brake is
what will be adjusted.

System Maintenance 13

Bronze Bearing

Belleville Washer

To adjust the brake, loosen the locknut on the gearbox shaft until the Bronze Bearing and the
Belleville Washer spin with a small amount of nger pressure.

Run the hoist DOWN approximately two feet so that the secondary brake is engaged and then
tighten the locknut to 70 inch/pounds with a torque wrench. Run the hoist down and check
for noise. If there is still noise, tighten the nut 1/8 of a turn and then run the hoist down again.
Repeat until the noise has ceased.

Do not tighten the nut to where there is no more adjustment available.

Check brake pad wear

Brake pad thickness
measure here (2 places)
if .065” or LESS REPLACE PADS

The brake pads should be checked for wear on
a routine basis. The pads may wear unevenly
so both sides need to be checked. Measure
the distance between the brake disc and
the ratchet wheel (both sides). The distance
(space) should be greater than .065". If .065"
or less the brake pads need replacement at the
factory.

After making the adjustment and checking the
Brake Pads, re-install the cover making sure to
t the cover into the slots on the backbone.

14 System Maintenance

System Maintenance 15

16 System Maintenance

Section 6: Warranty

The Daktronics Standard Warranty (the “Warranty”) sets forth the warranty provided by Daktronics with respect to
the Equipment. By accepting delivery of the Equipment, Purchaser agrees to be bound by and accept these terms

and conditions. All dened terms within the Warranty shall have the same meaning and denition as provided

elsewhere in the Agreement.

DAKTRONICS WILL ONLY BE OBLIGATED TO HONOR THE WARRANTY SET FORTH IN THESE TERMS AND
CONDITIONS UPON RECEIPT OF FULL PAYMENT FOR THE EQUIPMENT.

1. Warranty Coverage

A. Daktronics warrants to the Purchaser that the Equipment will be free from Defects (as defined below) in
materials and
Workmanship. Warranty period shall be for 15 months after date of shipment – parts and labor.

B. Daktronics’ obligation under this Warranty is limited to, at Daktronics’ option, replacing or repairing,
any Equipment or part that does not conform to the Equipment specifications. Unless otherwise directed
by Daktronics, any defective part or component shall be returned to Daktronics for repair or replacement.
Daktronics may, at its option, provide on-site warranty service. Daktronics shall have a reasonable period of
time to make such replacements or repairs and all labor associated therewith shall be performed during regular
working hours. Regular working hours are Monday through Friday between 8:00 a.m. and 5:00 p.m. at the
location where labor is performed, excluding any holidays observed by either Purchaser or Daktronics.

C. Daktronics shall pay ground transportation charges for the return of any defective component of the
Equipment. If returned Equipment is repaired or replaced under the terms of this warranty, Daktronics will
prepay ground transportation charges back to Purchaser; otherwise, Purchaser shall pay transportation charges
to return the Equipment back to the Purchaser. All returns must be pre-approved by Daktronics before shipment.
Daktronics shall not be obligated to pay freight for any unapproved return. Purchaser shall pay any upgraded
or expedited transportation charges.

D. Any replacement parts or Equipment will be new or serviceably used, comparable in function and
performance to the original part or Equipment, and warranted for the remainder of the Warranty Period.
Purchasing additional parts or Equipment from the Seller does not extend this Warranty Period.

E. Defects shall be defined as follows. A “Defect” shall refer to a material variance from the design
specifications that prohibit the Equipment from operating for its intended use. The Warranty does not provide
for the replacement or installation of communication methods including but not limited to, wire, fiber optic
cable, conduit, trenching, or for the purpose of overcoming local site interference radio equipment substitutions.

THIS LIMITED WARRANTY IS THE ONLY WARRANTY APPLICABLE TO THE EQUIPMENT AND REPLACES
ALL OTHER WARRANTIES OR CONDITIONS, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
THE IMPLIED WARRANTIES OR CONDITIONS OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE. SPECIFICALLY, EXCEPT AS PROVIDED HEREIN, THE SELLER UNDERTAKES NO RESPONSIBILITY
FOR THE QUALITY OF THE EQUIPMENT OR THAT THE EQUIPMENT WILL BE FIT FOR ANY PARTICULAR
PURPOSE FOR WHICH PURCHASER MAY BE BUYING THE EQUIPMENT. ANY IMPLIED WARRANTY IS
LIMITED IN DURATION TO THE WARRANTY PERIOD. NO ORAL OR WRITTEN INFORMATION, OR ADVICE
GIVEN BY THE COMPANY, ITS AGENTS OR EMPLOYEES, SHALL CREATE A WARRANTY OR IN ANY WAY

INCREASE THE SCOPE OF THIS LIMITED WARRANTY.

Warranty 17

2. Exclusion from Warranty Coverage

The Warranty does not impose any duty or liability upon Daktronics for:

A. Any damage occurring, at any time, during shipment of Equipment unless otherwise provided for in the
Agreement. When returning Equipment to Daktronics for repair or replacement, Purchaser assumes all risk of
loss or damage, and agrees to use any shipping containers that might be provided by Daktronics and to ship
the Equipment in the manner prescribed by Daktronics;

B. Any damage caused by the unauthorized adjustment, repair or service of the Equipment by anyone other
than personnel of Daktronics or its authorized repair agents;

C. Damage caused by the failure to provide a continuously suitable environment, including, but not limited to:
(i) neglect or misuse, (ii) a failure or sudden surge of electrical power, (iii) improper air conditioning or humidity
control, or (iv) any other cause other than ordinary use;

D. Damage caused by fire, flood, earthquake, water, wind, lightning or other natural disaster, strike, inability
to obtain materials or utilities, war, terrorism, civil disturbance or any other cause beyond Daktronics’
reasonable control;

E. Failure to adjust, repair or replace any item of Equipment if it would be impractical for Daktronics personnel
to do so because of connection of the Equipment by mechanical or electrical means to another device not
supplied by Daktronics, or the existence of general environmental conditions at the site that pose a danger to
Daktronics personnel;

F. Any statements made about the product by salesmen, dealers, distributors or agents, unless such statements
are in a written document signed by an officer of Daktronics. Such statements as are not included in a signed
writing do not constitute warranties, shall not be relied upon by Purchaser and are not part of the contract of
sale;

G. Any damage arising from the use of Daktronics products in any application other than the commercial and
industrial applications for which they are intended, unless, upon request, such use is specifically approved in
writing by Daktronics; or

H. Any performance of preventive maintenance.

3. Limitation of Liability

Daktronics shall be under no obligation to furnish continued service under this Warranty if alterations are made
to the Equipment without the prior written approval of Daktronics.

The use of any non-Daktronics controller or software shall void the Warranty.

It is specifically agreed that the price of the Equipment is based upon the following limitation of liability. In no
event shall Daktronics (including its subsidiaries, affiliates, officers, directors, employees, or agents) be liable for
any special, consequential, incidental or exemplary damages arising out of or in any way connected with the
Equipment or otherwise, including but not limited to damages for lost profits, cost of substitute or replacement
equipment, down time, lost data, injury to property or any damages or sums paid by Purchaser to third
parties, even if Daktronics has been advised of the possibility of such damages. The foregoing limitation of
liability shall apply whether any claim is based upon principles of contract, tort or statutory duty, principles of
indemnity or contribution, or otherwise.

In no event shall Daktronics be liable to Purchaser or any other party for loss, damage, or injury of any kind
or nature arising out of or in connection with this Warranty in excess of the purchase price of the Equipment
actually delivered to and paid for by the Purchaser. The Purchaser’s remedy in any dispute under this Warranty

shall be ultimately limited to the Purchase Price of the Equipment to the extent the Purchase Price has been paid.

18 Warranty

4. Dispute Resolution

Any dispute between the parties will be resolved exclusively and finally by arbitration administered in
accordance with the rules of the American Arbitration Association (“AAA”), except as otherwise provided
below. The arbitration will be conducted before a single arbitrator. The arbitration shall be held in Rochester,
New York. Any decision rendered in such arbitration proceedings will be final and binding on each of the
parties, and judgment may be entered thereon in any court of competent jurisdiction. This arbitration agreement
is made pursuant to a transaction involving interstate commerce, and shall be governed by the Federal
Arbitration Act.

5. Governing Law

The rights and obligations of the parties under this warranty shall not be governed by the provisions of the
United Nations Convention on Contracts for the International Sales of Goods of 1980. Both parties consent
to the application of the laws of the State of New York to govern, interpret, and enforce all of Purchaser and
Daktronics rights, duties, and obligations arising from, or relating in any manner to, the subject matter of this
Warranty, without regard to conflict of law principles.

6. Availability of Service Agreement

For Purchaser’s protection, in addition to that afforded by the Warranty, Purchaser may purchase extended services
to cover the Equipment. A Service Agreement is available from Daktronics and may provide for electronic parts
repair and/or on-site labor for an extended period from the date of expiration of this Warranty. Alternatively, a
Service Agreement may be purchased in conjunction with this Warranty for extended additional services. For further

information, contact Daktronics Customer Service at 1-800.325.8766.

Warranty 19