Daktronics WP-2103 User manual

201 Daktronics Drive
Brookings, SD 57006-5128
www.daktronics.com/support
800.325.8766
WP-2103 PORTABLE
WATER POLO TIMER
DISPLAY MANUAL
P1153
DD3267978
Rev 06
03 August 2021

Copyright © 2016-2021
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.
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
Specications Label .............................................................................................................................1
Resources ..............................................................................................................................................1
Daktronics Nomenclature ...................................................................................................................2
Display Controllers ................................................................................................................................2
2 SpecicationsandMechanicalInstallation ����������������������������������������������������������������������3
Specications........................................................................................................................................3
Wall Mounting .......................................................................................................................................3
3 Electrical Operation �������������������������������������������������������������������������������������������������������������4
Power .....................................................................................................................................................4
Wired Signal Connection.....................................................................................................................4
Wireless Radio Receiver Installation ...................................................................................................4
Radio Settings �����������������������������������������������������������������������������������������������������������������������������������5
4 Battery Care and Charging �������������������������������������������������������������������������������������������������6
On-Board Charger ...............................................................................................................................6
Operation ������������������������������������������������������������������������������������������������������������������������������������������8
Charger Troubleshooting Table�������������������������������������������������������������������������������������������������������8
Radio Interference����������������������������������������������������������������������������������������������������������������������������9
Battery and Charging Safety ..............................................................................................................9
Personal Safety Precautions ������������������������������������������������������������������������������������������������������������9
DC Connection Precautions����������������������������������������������������������������������������������������������������������10
5 Troubleshooting ������������������������������������������������������������������������������������������������������������������11
Troubleshooting Table........................................................................................................................11
Component Locations and Access .................................................................................................13
Replacing Digits..................................................................................................................................13
Segmentation and Digit Designation �������������������������������������������������������������������������������������������13
LED Driver.............................................................................................................................................14
Replacing a Driver��������������������������������������������������������������������������������������������������������������������������14
Setting the Driver Address �������������������������������������������������������������������������������������������������������������15
Replacing Batteries ............................................................................................................................15
Horn......................................................................................................................................................16
Replacement Parts.............................................................................................................................16
6 Daktronics Exchange and Repair & Return Programs ����������������������������������������������������17
Exchange Program ............................................................................................................................17
Repair & Return Program...................................................................................................................18
Daktronics Warranty & Limitation of Liability ...................................................................................18
A Reference Drawings �����������������������������������������������������������������������������������������������������������19
B Daktronics Warranty & Limitation of Liability��������������������������������������������������������������������27

This page intentionally left blank.

Introduction
1
1 Introduction
This manual outlines specications, operation, and troubleshooting for Daktronics
portable WP-2103 water polo display. For additional information regarding the safety,
installation, operation, or service of these displays, refer to Section 6: Daktronics
Exchange and Repair & Return Programs (p� 17). This manual is not specic to a
particular installation. Project-specic information takes precedence over any other
general information found in this manual.
Important Safeguards
• Readandunderstandallinstructionsbeforerstuse.
• Toggle the power switch to "OFF" when not using the display�
• Disconnect the batteries and turn the power switch "OFF" when servicing the display�
• Keep the display far enough away from the pool to prevent water from directly
splashing on it�
• After each usage, dry off the front of the display with compressed air or a fan�
• Do not modify the structure or attach any panels or coverings to the display without
the express written consent of Daktronics�
• Do not disassemble control equipment or electronic controls of the display; failure to
follow this safeguard will make the warranty null and void�
• Do not drop the control equipment or allow it to get wet�
Specications Label
Power specications as well as serial and model number information can be found on an
ID label on the display, similar to the one shown in Figure 1.
DAKTRONICS 201 DAKTRONICS DR. BROOKINGS, SD PHONE [phone]
SUITABLE FOR SERVICING ONLY WHEN DE-ENERGIZED
PUET FAIRE L'OBJET D'UN ENTRETIEN UNIQUEMENT S'IL EST HORS TENSION
LL-4284957
THIS DEVICE 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
Figure 1: Specications Label
Please have the assembly number, model number, and the date manufactured on hand
when calling Daktronics customer service to ensure the request is serviced as quickly as
possible. Knowing the facility name and/or job number will also be helpful.
Resources
Figure 2 illustrates a Daktronics drawing label.
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.
Drawing Number
Figure 2: Drawing Label

Introduction
2
Any drawings referenced in a 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 Nomenclature
Most display components have a white label that lists the part
number (Figure 3). Part numbers will also appear on certain drawings.
If a component is not found in the Replacement Parts (p� 16), use
the label to order a replacement. Refer to Section 6: Daktronics
Exchange and Repair & Return Programs (p� 17) if replacing or
repairing any display 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
Display Controllers
The display is controlled via an All Sport®5000 or OmniSport®2000 control console.
Either console may be equipped with an optional radio transmitter. The controllers use
keyboard overlays (sport inserts) to control multiple sports. Refer to the following manuals
for operating instructions:
• All Sport 5000 Series Control Console Operation Manual (ED-11976)
• OmniSport 2000 Timing Console Operation Manual (ED-13312)
These control console manuals are available online at www.daktronics.com/manuals.
0P-1127-0024
SN: 2465
02/19/12 Rev. 1
Figure 3: 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

SpecicationsandMechanicalInstallation
3
2 SpecicationsandMechanicalInstallation
Specications
The table below lists all of the mechanical specications, circuit specications, and
power requirements for the display.
Dimensions: Height, Width, Depth 1'-10" H x 1'-10" W x 8" D (559 mm x 559 mm x 203 mm)
Weight 70 lb (32 kg)
Digit Size/Color 5" (127 mm) / Amber
7" (178 mm) / Red
Maximum Wattage 300 W
Power 120 VAC or 24 V Battery
Batteries
Lead Acid
2 @ 12 V (each)
28 Amp/Hours
Amps per Line - Single Phase 2.5 A
Driver Number (Address) A1 (1)
Note: Batteries require 12 hours to fully recharge and can operate for up to 14 hours of
normal use.
Wall Mounting
Reference Drawing:
Mechanical Spec; WP-2103 ............................................................................ DWG-3267454
The display itself features a carrying handle and requires no assembly or permanent
installation. However, some customers may wish to mount it to a wall.
When the display is to be permanently mounted to a wall, refer to DWG-3267454 in
Appendix A for mounting hole sizes and locations.
Note: The handle is intended for lifting and carrying only. Do not attempt to
permanently hang the display by its handle.
Due to the variety of wall materials used in sports facilities, Daktronics cannot anticipate
a customer's individual installation needs or provide mounting hardware suitable for
every installation. Choose a method of installation that will safely support the weight of
the display. Be sure that the installation complies with local building codes.
Note: Daktronics assumes no liability for any installation derived from the information
provided in this manual or installations designed and installed by others.

Electrical Operation
4
3 Electrical Operation
The display can be powered by two different electrical systems: a standard 120 VAC
power source and/or enclosed lead-acid batteries.
Power
Reference Drawing:
Component Location; WP-2103 ..................................................................... DWG-3264487
Power and control connections are located on the side of the display. Refer to DWG-
3264487 in Appendix A for detailed component locations.
The provided 8' (2.44 m) 120 VAC power cord plugs directly into the three-prong power
receptacle, located on the side of the display. Any time 120 VAC power is connected,
the internal charger operates; however, the system will not overcharge the batteries.
When the power cord is not connected, the system runs on battery power.
Daktronics supplies two 12 V batteries, rated at 28 ampere hours (A/H) as original
equipment. Refer to Section 4: Battery Care and Charging (p� 6) for information on
battery care and use of the onboard battery charger.
The display is shipped ready for use. The battery charger is factory-mounted in the
display, and all internal wiring is in place and connected to the driver and batteries.
A control switch on the side of the display activates power to the internal components.
• Flip the switch ON for display operation.
• At all other times, keep the switch in the OFF position.
Whether or not the display is operational, its batteries will continue to discharge any
time the switch is in the ON position. Leaving the switch ON when the display is not in use
could completely discharge and damage the batteries�
Keep the display plugged in to a 120 VAC power source during storage. Battery life
is enhanced by keeping the batteries fully charged. Typically, batteries will be fully
charged in about 12 hours and will give about 14 hours performance on a full charge.
Wired Signal Connection
Connect a signal cable with 1/4" phone plugs between the signal jack on the side of the
display and the J1, J2, or J3 jack on the back of the All Sport 5000 console (or J2/J3 on
the OmniSport 2000). Daktronics offers several pre-terminated signal cable lengths. Refer
to Replacement Parts (p� 16).
Wireless Radio Receiver Installation
Note: A control console equipped with an optional radio transmitter is required for
wireless communication.
The radio receiver is typically held in place inside the display with adhesive-backed,
hook-and-loop fastener strips, and when ordered as original equipment may already be
installed. The only installation required is attachment of the radio antenna, which may
have been shipped separately to prevent damage.

Electrical Operation
5
If the radio receiver is not already installed:
1� Access the inside of the display by removing the two screws securing the front access
panel and swinging it open.
2� Position the radio unit inside the radio mounting bracket, located in the lower-right
corner of the front access panel (when viewed with the access panel open).
3� Insert the antenna jack through the hole in the front access panel of the display.
4� Route and connect the cable protruding from the bottom of the radio unit to the
6-pin jack labeled J21 on the LED driver.
5� Close and secure the access panel.
6� Note that the antenna connector now protrudes through the front of the display.
a� Install and tighten the lock washer and nut on the antenna connector.
b� Mount the external antenna on the connector, turning the nut on the antenna
until it is snug.
c� Rotate the antenna so that it is pointing straight upward (it should look like a
capital “L” when viewed from the side).
Radio Settings
The radio receiver is preset to Channel 1. If there are other
displays in the facility operating with radio signal, each
display receiver must be set to a different channel number
(typically starting with 1 and numbering consecutively).
The values set on the receiver must match the settings in the controller. Refer to the
controller screen at right and the manual listed in Display Controllers (p� 2).
If the radio receiver channel and broadcast settings do match those set in the console
but the console does not control the display, there may be radio interference. In this
case, change the settings of the wireless radio receiver inside the display and in the
console as described in the radio control manuals.
For more information, refer to the Gen VI Radio Installation Manual (DD2362277),
provided with the receiver unit and available online at www.daktronics.com/manuals.
RADIO SETTINGS
BCAST 1 CHAN 01
Radio Settings in Console

Battery Care and Charging
6
4 Battery Care and Charging
This section describes care and operation of the on-board battery charging system.
On-Board Charger
Reference Drawing:
Component Location; WP-2103 ..................................................................... DWG-3264487
On a full charge, the two internal batteries provide enough power for approximately 14
hours of normal operation. Keeping the batteries charged will help extend their life. Be
sure that the batteries are fully charged before storing the display during the off-season;
storing the display with a discharged battery can contribute to early battery failure. Keep
the display plugged in to a 120 VAC receptacle during storage.
The Marinco ChargePro model 28210 on-board battery charger is designed both to
recharge the batteries and to extend battery life when the display is stored for extended
periods of time. The charger is located inside the display cabinet, attached to the right
side (as viewed with the front panel open). The charger is connected to the transformer
next to the driver tray and to the batteries. Refer to DWG-3264487 in Appendix A.
ChargerPowerSpecications
Outputs: two individual isolated outputs with a combined rating as follows:
• When bulk charging: 8–10.5 A at 14.3 VDC
• When absorption charging: 3–10 A at 14.3 VDC
• When oat charging: 0–3 A at 13.3 VDC
Maximum recommended battery size:
• For recharging: Up to 120 A/H
Input:
• Rated AC voltage: 100–240 VAC, 50–60 Hz
• Current draw: 2.5 A at full output
The ChargePro 28210 charger (Figure 4), is a 2 bank, 10
A, 12/24 VDC output charger with a wide input range
of 100-240 VAC. It is microprocessor controlled and
has a maintenance mode that will keep the batteries
fully charged. The charger is fully automatic and can
be connected to the twin 12 V lead-acid batteries
indenitely without risk of overcharging. The 28 A/H
batteries provided with the display will typically be fully
recharged after about 12 hours.
The ChargePro 28210 charger is a four-stage, “smart”
charger with “Sense Send” technology that senses
the power needs of each battery and sends the
correct charge regardless of Serial or Parallel output
connections. If the batteries have discharged
unequally, the charger will send more power to the
battery that needs it, resulting in faster charging.
Figure 4: ChargePro Charger

Battery Care and Charging
7
The charge cycle is as follows:
1� Soft Start – Charger veries connections are good and the battery is capable of
accepting a charge. Batteries with very low voltage (near dead) will be slowly
charged to not harm the battery. When the battery voltage reaches 10 V for 30
seconds, the charger switches to the next stage.
2� Bulk Stage – the charger uses constant current and charges the battery to 14.3 V.
When the battery holds the voltage of 14.3 V for 30 seconds, the charger switches to
the next stage.
3� Absorption Stage – the charger uses constant voltage to charge the battery until the
charge current drops just below the rated current for 30 seconds. At this point the
charger will go to the next stage.
4� Float Stage – the charger nishes the charge cycle by keeping the battery at 13.3 V
for a period of time and determines the battery is charged and shuts down.
5� Maintenance – the charger will monitor the battery and if the battery voltage drops
below 12.8 V or if 14 days have passed since the last charge the charge cycle will
start automatically.
Unlike most automotive "trickle" chargers, the unit will not boil off the electrolyte in a lead-
acid battery when left unattended.
To operate the charger, simply plug the display's power cord into a standard 120 VAC, 60
Hz outlet. Red and green LED indicators on the charger, visible through holes on the right
side of the display cabinet, indicate the recharging status. A label at this location also
describes charging levels.
Note: When the batteries are connected, they will continuously supply power, even
if the digits are blank. Make sure that the display is powered ON only during an
event or when testing. At all other times, the display should be powered OFF.
The table below describes how the charger indicators operate:
LED Indicators Operating Condition
Soft Start / Bulk Charge
Red ON
Green OFF
Charger is in the “Soft Start” or “Bulk Stage” and the battery is
being charged. If the red LED stays on for more than 24 hours,
refer to the Charger Troubleshooting Table (p� 8).
Absorption Charge
Red ON
Green ON
Charger is in the “Absorption Stage” and delivering constant
voltage to the battery. If both LEDs stay on longer than 24 hours,
refer to the Charger Troubleshooting Table (p� 8).
Float Charge
Red OFF
Green ON
The charger has moved to the “Float Stage” and is topping off
the charge to the battery and keeping the battery ready to use.
The green light indicates the battery is ready to use. If the green
LED stays on and the battery is known to be low, refer to the
Charger Troubleshooting Table (p� 8).
Maintenance
The charger will monitor the battery, and if the battery voltage
drops below 12.8 V for 30 seconds or if 14 days have passed
since the last charge, the charge cycle will start automatically
and will switch back to “Bulk Stage”.

Battery Care and Charging
8
Operation
If the ChargePro encounters a DC overload (excessive demand), it will reduce its output
voltage to a safe level to prevent damage. If the positive and negative connectors are
touched together, creating a short, the charger will instantly reduce its output voltage
to nearly 0 V. When the overload is removed, the charger automatically resumes normal
operation.
If the in-line 10 A, 32 VDC fuse in either cable blows due to improper connection to a
battery, replace the fuse with an identical 10 A fuse only (Daktronics part # F-1006).
Never replace a blown fuse with a higher-value fuse.
The charger is waterproof, but the AC plug and DC bolt-type connectors should be
kept dry. It is normal for the charger to become warm during operation; consequently, it
should not contact any surface other than the display cabinet.
Charger Troubleshooting Table
Problem Cause Solution
It seems to take a long
time to recharge the
batteries in hot weather.
The charger has overheated due
to poor air circulation and has
reduced its output.
Consider moving the display to a
shaded location.
Red LED stays on for more
than 24 hours.
One or more defective or
damaged cells
Load test the battery and
replace if necessary. See
Replacing Batteries (p� 15).
Charger has reduced its output
voltage below the normal level
due to a DC overload or a DC
short.
Remove the source of the
overload or short. Disconnect
the charger’s black (negative)
terminal from the battery.
Reapply AC power and only the
green LED should light up.
Extremely low AC voltage at the
battery charger
Apply a higher AC voltage
source or reduce the length of
the extension cord.
Check battery manufacturer’s
specs on battery charging.
Both the red and green
LEDs stay on for more than
24 hours.
On-board DC systems are
drawing between 1.5 – 3.5 A.
Turn off all DC equipment while
charging.
One or more defective or
damaged cells.
Load test the battery and
replace if necessary. See
Replacing Batteries (p� 15).
Extremely low AC voltage at the
battery charger
Apply a higher AC voltage
source or reduce the length of
the extension cord.
Check battery manufacturer’s
specs on battery charging.

Battery Care and Charging
9
Problem Cause Solution
Green LED stays on when
the battery is known to be
low.
Open DC output fuse Replace DC output fuse with a
10 amp fuse.
Faulty or contaminated terminal
connections
Clean and tighten or repair all
terminal connections.
One or more defective or
damaged cells
Load test the battery and
replace if necessary. See
Replacing Batteries (p� 15).
Neither of the LEDs turn
on when the AC power is
applied
No AC power available at the
charger
Connect AC power or reset the
AC breaker on the main panel
Component failure
Go to www.marinco.com –
under the Resources tab, refer to
FAQ section.
Radio Interference
The onboard battery charger generates and can radiate radio frequency energy. The
equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to FCC rules, Part 15.
With proper installation, there should be no interference with any radio communications,
either with the display's own receiver or other radio-controlled devices in the
immediate area. However, if it is determined that this device may be the cause of radio
interference, try to correct the interference with one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and the receiver.
• Connect the equipment to an AC outlet on a circuit different from the receiver.
Battery and Charging Safety
Note: The following lists are general safety instructions when working with lead-acid
batteries. Some of the safety considerations are not applicable to the sealed
batteries provided with the display as those batteries are self-contained and
cannot be opened, and they are safer than automotive batteries that require
servicing. Exercise caution, however, when working with any lead-acid battery.
Personal Safety Precautions
• Someone should be within range of your voice or close enough to come to your aid
when you work near a lead-acid battery.
• Have plenty of fresh water and soap nearby in case battery acid contacts your skin,
clothing, or eyes.
• Wear complete eye protection and clothing protection. Avoid touching your eyes
while working near the battery.
• If battery acid does contact skin or clothing, wash immediately with soap and water.
If you get acid in your eye, immediately ood the eye with running cold water for at
least 10 minutes, and get medical attention immediately.
• NEVER smoke or allow a spark or ame near the battery.

Battery Care and Charging
10
• Be extra cautious while servicing the display to reduce the risk of dropping a tool onto
the battery. It might spark or short-circuit the battery or another electrical part, which
could cause an explosion.
• Remove all personal metal items such as rings, watches, and other jewelry when
working with a lead-acid battery. A lead-acid battery can produce a short-circuit
current high enough to weld a ring or similar item to metal, causing severe burns.
• Use the charger for charging LEAD-ACID batteries only. It is not intended to recharge
common dry cell batteries, which may burst and cause injury to people and damage
to property.
• NEVER charge a frozen battery.
DC Connection Precautions
1� Check the polarity markings on the battery.
2� Attach the positive ring terminals (red or white wires with fuse) from each cable on
the charger to the positive (+) terminals of the batteries.
3� Attach the negative ring terminals (black wires) from each cable on the charger to
the negative (–) terminals of the batteries.
4� When disconnecting the charger, rst disconnect (unplug) the AC power cord,
then remove the negative ring terminal from the battery's negative (–) terminal, and
remove the positive (+) ring terminals last.

Troubleshooting
11
5 Troubleshooting
Disconnect power before doing any repair or maintenance work on the display� Permit
onlyqualiedservicepersonneltoaccessinternaldisplayelectronics.Disconnectpower
when not using the display�
Troubleshooting Table
The table below lists potential problems with the display and indicates possible
causes and corrective actions. This list does not include every symptom that may be
encountered, but it does present several of the most common situations that may occur.
Problem Possible Cause Solution/Items to Check
Display doesn’t light, and
console doesn’t work
No power to the display
Flip power switch ON.
Check that the display has 120 VAC power.
There may be a problem with the
batteries/charger. Refer to the Charger
Troubleshooting Table (p� 8).
No power to console
Ensure the console is plugged into a 120
VAC power supply.
Exchange the console with a working one,
and enter the correct sport code and/or
radio settings to test. Replace if necessary.
Display digits do not
light, but console works
No wired signal from
control console
Check that the display is receiving 120 VAC
or battery power.
Check that the red DS5 LED on the driver
lights up when sending commands from the
control console. See LED Driver (p� 14).
No radio signal from
control console
Check the receiver (display) and
transmitter (console) radio settings. See
Radio Settings (p� 5).
Check that the green POWER and amber
RADIO IN RANGE indicators on the radio
receiver in the display light up when the
control console is powered on. Keep the
console 20–1500' (6–457 m) away.
Move the console 20–30' (6–9 m) from the
display and test again. Verify that both the
console and display antennas are securely
tightened and in a vertical position.
Replace the radio receiver.
No signal to driver
Check that the display is receiving 120 VAC
or battery power.
Check that the red DS5 LED on the driver
lights up when sending commands from the
control console. See LED Driver (p� 14).
Exchange driver with a working one of the
same part # to verify the problem. Replace
if necessary. See LED Driver (p� 14).
No power to driver
Check that the red DS8 LED on the driver is
always lit up when the display is powered
on. See LED Driver (p� 14).

Troubleshooting
12
Problem Possible Cause Solution/Items to Check
Display does not run on
120 VAC power Blown fuse
Check fuse in fuse holder labeled F5. If
blown, replace with Daktronics part #
F-1077.
Display digits light, but
not in the correct order
Incorrect sport code
Ensure the correct sport code is being
used for the display model. Refer to the
appropriate console operation manual.
Incorrect driver address
Check that the display driver is set to the
correct address. See Setting the Driver
Address (p� 15).
Digits light, console
works, but nothing
displays
No wired signal from
control console (see solution on previous page)
No radio signal from
control console (see solution on previous page)
Bad/damaged eld
wiring
Check that the red DS5 LED on the driver
lights up when sending commands from the
control console. See LED Driver (p� 14).
Display works, but some
LEDs always stay on Short in digit circuit
Exchange the digit with a working one
of the same part # to verify the problem.
Replace if necessary. See Replacing Digits
(p� 13).
Display works, but some
LEDs do not light or they
blink
Bad connection
Verify the connector on the back of the
digit circuit board is secure. See Replacing
Digits (p� 13).
Bad digit or driver
Exchange the digit or driver with a
working one of the same part # to verify
the problem. Replace if necessary. See
Replacing Digits (p� 13) or LED Driver (p�
14).
Display works, but some
digits do not light
Bad digit or driver (see solution above)
Incorrect sport code (see solution above)
Incorrect driver address (see solution above)
Wrong console
controlling display
Another console’s radio signal may
be transmitting to the scoreboard.
For example, a football and baseball
scoreboard that are within 1500' (457 m) of
each other.
Radio Interference
There may be other radio transmissions in
the area that overpower the console. If
it is not possible to disable the interfering
device, it may be necessary to run a wired
signal connection instead.

Troubleshooting
13
Component Locations and Access
Reference Drawing:
Component Location; WP-2103 ..................................................................... DWG-3264487
In the WP-2103, the front panel is hinged on the left side. To gain access to the internal
display components, simply remove the two screws securing the front panel to the
display cabinet, and swing it open. DWG-3264487 in Appendix A illustrates the front panel
removed and all of the internal components exposed.
Note: Disconnect power before servicing the display! Also turn power OFF when the
display is not in use. In addition to discharging the batteries, prolonged power-on
may shorten the life of some electronic components.
Replacing Digits
LEDs are embedded in a circuit board that is
mounted to the back of the digit or display
face panel as shown in Figure 5. Multiple digits
may be secured to a single face panel. Do
not attempt to remove individual LEDs. In the
case of a malfunctioning LED or digit segment,
replace the entire digit circuit board.
To replace a digit:
1� Open the digit panel as described in
Component Locations and Access (p�
13).
2� Disconnect the 9-pin plug from the back
of the digit by squeezing the locking tabs
together while pulling the connector free.
3� Use a 9/32" nut driver to remove the
nuts securing the digit to the inside of
the panel, and then lift the digit off the
standoff studs.
4� Position a new digit over the studs, and tighten the nuts.
5� Reconnect the 9-pin plug. This is a keyed connector and it will attach in one way
only. Do not force the connection.
6� Close and secure the digit panel, then power up and test the display to verify the
issue has been resolved.
Segmentation and Digit Designation
Reference Drawings:
Segmentation, 7 Segment Bar Digit ................................................................... DWG-38532
Component Location; WP-2103 ..................................................................... DWG-3264487
In each digit, certain LEDs always go on and off together. These groups of LEDs are
called segments. DWG-38532 in Appendix A details which connector pin is wired to each
digit segment and the wiring color code used throughout the display.
DWG-3264487 in Appendix A indicates the driver connectors controlling the digits. The
numbers shown in the upper half of a digit indicate which driver connector is wired to it.
Stud
Digit/Face
Panel
Digit Circuit
Board
Power/
Signal IN
Nut
Figure 5: Digit Panel Assembly

Troubleshooting
14
LED Driver
Reference Drawings:
Specications; Gyrus LED Driver, 16 Col......................................................... DWG-3071833
Component Location; WP-2103 ..................................................................... DWG-3264487
Schematic; WP-2103 ........................................................................................ DWG-3264543
The LED driver performs the task of switching digits on and off within the display. Refer to
DWG-3264487 to view the location and components of the driver. Refer to DWG-3264543
for detailed wiring schematics.
When troubleshooting driver problems, four red LEDs labeled DS1, DS2, DS5, and DS8
provide diagnostic information as shown in the table below.
Note: While it is necessary to have the display powered on to check the LED indicators,
always turn off display power before servicing.
LED Function Operation Summary
DS1 Radio/
RS-232 RX Blinking or off DS1 will be blinking when the driver is receiving radio signal and off when there is no signal.
DS2 Status Blinking DS2 will be blinking at one second intervals to indicate
the driver is running.
DS5 Signal RX Blinking or off DS5 will be blinking when the driver is receiving current
loop signal and off when there is no signal.
DS8 Power Steady on DS8 will be on and steady to indicate driver has power.
For detailed descriptions and pin-outs of the driver jacks, refer to DWG-3071833.
Replacing a Driver
If the driver status indicators do not appear to be working correctly, it may be necessary
to replace the driver.
1� Open the front panel as described in Component Locations and Access (p� 13).
2� Disconnect all plugs from the driver by squeezing the locking tabs together and
pulling the connectors free. It may be helpful to label the cables to know which plug
goes to which jack when connecting the replacement driver.
3� Remove the nuts securing the driver to the inside of the display.
4� Carefully lift the driver from the display and place it on a clean, at surface.
5� Position a new driver over the screws and tighten the nuts.
6� Reconnect all plugs to their mating jacks on the driver. The connectors are keyed
and will attach in one way only. Do not force the connections.
7� Ensure the new driver is set to the correct address. This will be the same address of the
old driver being replaced. Refer to Setting the Driver Address (p� 15).
8� Securely close the front panel, and then power up and test the display to verify the
issue has been resolved.

Troubleshooting
15
Setting the Driver Address
Since the same LED drivers can be used for
many display models, each driver must be set to
receive the correct signal input, or address, for
the model being used.
Addresses are set through the S2 (L) and S3 (H)
rotary switches on the driver (Figure 6) using a
small athead screwdriver.
The WP-2103 will always be set to address 1,
where H = 0 and L = 1.
Replacing Batteries
As the batteries age, they may lose capacity to sufciently operate the display, even
on a full charge. When replacement becomes necessary, use the same brand of
battery as the original equipment. Similar batteries may be used as long as they meet
the specications for the display. If a different brand must be used, be sure that the
terminals are oriented the same as in the original to ensure a proper connection. Refer to
Replacement Parts (p� 16) for part numbers of batteries and fuses.
Mounting brackets hold the batteries in place at the bottom of the display. The bracket
is designed to hold batteries measuring 7" high, 6.5" wide, and 5" deep (178 mm, 165 mm,
127 mm). The bracket is not designed to support a battery of different dimensions.
To replace the batteries:
1� Open the front panel as described in Component Locations and Access (p� 13).
2� Use a 5/16" socket or nut driver to remove the two nuts securing each battery
bracket to the inside rear of the display cabinet, and use a Phillips head screwdriver
to remove the two #10 screws on the bottom outside of the display cabinet.
3� Remove the screws securing the wires to the battery terminals. Disconnect the
negative (–) terminal rst followed by the positive (+) terminal.
4� Remove the battery from the display.
5� Reverse the procedure to install new batteries. Connect the positive (+) terminal rst
followed by the negative (–) terminal.
Important Notes:
• During service, do not allow the battery terminals to touch any metal surface.
When reinstalling, make sure the terminal wires are connected correctly. Improper
connection may result in injury or damage to display components.
• The batteries in these products contain lead. Do not dispose of the batteries in a
municipal waste system at the end of their useful life. Doing so may be a violation
of local, state, or federal environmental regulations. Please return the batteries to a
battery recycling center or battery retailer.
H
L
Figure 6: Driver Address Dials

Troubleshooting
16
Horn
A 12 V buzzer horn is mounted to the front face panel. To replace a horn:
1� Open the front panel as described in Component Locations and Access (p� 13).
2� Disconnect the 2-pin cable from the horn.
3� Use a 7/16" wrench to remove the nut securing the horn to the horn mounting
bracket.
4� Reattach the new horn to the front face panel.
5� Connect the new 2-pin horn cable.
6� Close and secure the front panel, then power up the display and test the horn to
verify the issue has been resolved.
Note: The horn volume is set at maximum during manufacturing and is not adjustable.
Replacement Parts
The following table contains display components that may require replacement. Many of
the other components will have attached part number labels.
Description Part Number
12 VDC Horn Assembly 0A-1072-0023
16 Column Digit Driver 0A-1782-0100
Battery Monitor (Circuit Board) 0P-1192-0097
Colon, Amber 0P-1192-6279
5" Digit, Amber 0P-1192-6285
7" Digit, Red 0P-1192-1242
Battery; 12V, 28 A/H sealed lead-acid (Power Sonic Model PS12280) BT-1023
Battery Charger; dual 12 or 24V, 3 A (ChargePro Model 28210) BT-1053
Fuse, AGC-10, 10A, 250 V, glass tube F-1006
Fuse, MDL-7, 7.5 A, 250 V glass tube F-1031
Fuse, MDL-1, 250V, glass tube F-1077
Transformer, Pri; Dual 115/230V; sec: 16VCT @6.25A T-1066
Power cord, 360º rotating, 8' W-1181
Cable, 20' phone plug W-1236
Cable, 50' phone plug W-1237
Cable, 30' phone plug W-1238
Cable, 10' phone plug W-1340
Fuse holder X-1287
Refer to Section 6: Daktronics Exchange and Repair & Return Programs (p� 17) for
information on exchanging or returning parts.