Daktronics P1753 User manual

201 Daktronics Drive

Brookings, SD 57006-5128

www.daktronics.com/support

800.325.8766

LED TIMER W/ BATTERIES

DISPLAY MANUAL

P1192, P1753

DD2959933

Rev 10

03 August 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.

– i –

Table of Contents

1 Introduction��1

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

Specications Label .............................................................................................................................1

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

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

Display Controllers ................................................................................................................................2

Product Safety Approval .....................................................................................................................2

2 Specications��3

3 MechanicalInstallation ��4

Cart Assembly .......................................................................................................................................4

Adjusting the Cart ................................................................................................................................4

4 ElectricalInstallation ��5

Power .....................................................................................................................................................5

Wired Signal Connection.....................................................................................................................5

Wireless Radio Receiver Installation ...................................................................................................5

RadioSettings ��6

5 BatteryCareandCharging ��7

On-Board Charger ...............................................................................................................................7

Operation ��9

ChargerTroubleshootingTable��9

RadioInterference��10

Battery and Charging Safety ............................................................................................................10

PersonalSafetyPrecautions ��10

DCConnectionPrecautions��11

6 Troubleshooting ��12

Troubleshooting Table........................................................................................................................12

Component Locations and Access .................................................................................................14

Replacing Digit Segments .................................................................................................................14

SegmentationandDigitDesignation ��14

LED Driver.............................................................................................................................................15

ReplacingaDriver��16

SettingtheDriverAddress ��16

Replacing Batteries ............................................................................................................................16

Horn (TI-2015/TI-2215)..........................................................................................................................17

Replacement Parts.............................................................................................................................17

7 DaktronicsExchangeandRepair&ReturnPrograms ��19

Exchange Program ............................................................................................................................19

Repair & Return Program...................................................................................................................20

Daktronics Warranty & Limitation of Liability ...................................................................................20

A ReferenceDrawings ��21

B DaktronicsWarranty&LimitationofLiability��35

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Introduction

1

1 Introduction

This manual outlines specications, operation, and troubleshooting for Daktronics

timing displays with batteries for portability. For additional information regarding the

safety, installation, operation, or service of these displays, refer to Section7:Daktronics

ExchangeandRepair&ReturnPrograms(p.19). 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.

• 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.

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. 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.

ASSY NO.

SER. NO.

MFG DATE

BROOKINGS, SD 57006-5128 PHONE 800-325-8766 LL-2306 R01

201 DAKTRONICS DR.

DAKTRONICS

Figure 1: Specications Label

Drawing Number

Figure 2: Drawing Label

Introduction

2

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.17), use

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

ExchangeandRepair&ReturnPrograms(p.19) 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®1600 or 5000 series 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1600SeriesControlConsoleOperationManual(ED-12462)

• AllSport5000SeriesControlConsoleOperationManual(ED-11976)

These control console manuals are available online at www.daktronics.com/manuals.

Product Safety Approval

Daktronics outdoor scoreboards are ETL-listed, tested to CSA standards, and CE-labeled.

Contact Daktronics with any questions regarding testing procedures.

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

3

2 Specications

The table below lists all of the mechanical specications, circuit specications, and

power requirements for the displays in this manual.

TI-2203(TI-2003w/Batteries) TI-2215(TI-2015w/Batteries)

Dimensions:

Height, Width, Depth

DisplayOnly:

3'-0" H x 4'-0" W x 8" D

(914 mm, 1.22 m, 203 mm)

WithSideStands:

3'-0" H x 4'-2" W x 20" D

(914 mm, 1.27 m, 508 mm)

WithOptionalCart(minimized):

4'-2" H x 5'-0" W x 2'-6" D

(1.27 m, 1.52 m, 762 mm)

WithOptionalCart(maximized):

6'-4" H x 5'-0" W x 3'-7" D

(1.93 m, 1.32 m, 1.09 m)

DisplayOnly:

2'-4" H x 3'-4" W x 8" D

(711 mm, 1.02 m, 203 mm)

WithSideStands:

2'-4" H x 3'-6" W x 16" D

(711 mm, 1.07 m, 406 mm)

WithOptionalCart(minimized):

3'-6" H x 4'-4" W x 2'-6" D

(1.07 m, 1.32 m, 762 mm)

WithOptionalCart(maximized):

5'-8" H x 4'-4" W x 3'-7" D

(1.73 m, 1.32 m, 1.09 m)

Weight

DisplayOnly:

85 lb (39 kg)

WithOptionalCart:

95 lb (43 kg)

DisplayOnly:

56 lb (25 kg)

WithOptionalCart:

66 lb (30 kg)

DigitSize/Color 30" (762 mm) / Red or Amber 24" (610 mm) / Red or Amber

MaximumWattage 300 W 300 W

Power 120 VAC or 24 V Battery 120 VAC or 24 V Battery

Batteries

Lead Acid

2 @ 12 V (each)

28 Amp/Hours

Lead Acid

2 @ 12 V (each)

28 Amp/Hours

AmpsperLine-

SinglePhase 2.5 A 2.5 A

DriverNumber(Address) A1 (11) A1 (11)

Note:Batteries require 12 hours to fully recharge and can operate for up to 14 hours of

normal use.

MechanicalInstallation

4

3 MechanicalInstallation

The display itself may feature a carrying

handle and may not require assembly or

permanent installation. Some assembly may

be required, however, for attachment of a

wheeled cart.

Cart Assembly

The display cart (Figure4) comes standard

with four wheels. Included in the cart kit is an

installation quick guide (DD3695776). Refer

to this guide when attaching the cart to the

display.

Note:In order to install the cart, the

triangular stands on the sides of the

display must rst be removed using

a Philips screwdriver. For the TI-2203,

the carrying handles must also be

removed.

Adjusting the Cart

ReferenceDrawing:

Assy; Small Display w/ Stands .......................................................................... DWG-3220250

Caution!Do not raise the display in high winds or transport the display in the raised

position. These actions increase the likelihood of tipping over and causing injury or

damage to the display.

DWG-3220250 in AppendixA shows the two axle positions that may be used with

the cart. The extended axle position provides maximum stability and should be used

whenever the display is raised. Use the narrow axle position (and lowest height) to move

the display through doorways and for storage. The drawing also illustrates front proles of

the display in transport position and at maximum viewing height.

There are three height-adjustment holes in the mounting tubes on the sides of the display.

Raise the display for viewing by removing the pins and retaining clips, sliding the display

upward on the T-stands and reinserting the pins in the appropriate holes. Lower the

display for storage or transportation. It may be helpful to have one person lift the display

while another person adjusts the locking pins.

T-Stand

Locking Pin

Wheel w/ Bolt

Axle Tube

Mounting Tube

T-Stand

Locking Pin

Wheel w/ Bolt

Axle Tube

Mounting Tube

Figure 4: Cart Assembly

ElectricalInstallation

5

4 ElectricalInstallation

Power

Power for the display is provided in two ways: via standard 120 VAC line, or by means

of two sealed lead-acid DC batteries. Daktronics supplies two 12 V batteries, rated at

28 ampere hours (A/H), as original equipment. Refer to Section5:BatteryCareand

Charging(p.7) for information on battery care and use of the on-board battery

charger.

The provided 8' (2.4 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 display runs on battery power.

Displays are 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 (up) for display operation.

• At all other times, keep the switch in the OFF (down) 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 from the signal jack on the side of the

display to the J1, J2, or J3 jack on the back of the All Sport 5000 console (or J1/J2 on the

All Sport 1600). Daktronics offers several pre-terminated signal cable lengths. Refer to

ReplacementParts(p.17).

Wireless Radio Receiver Installation

Note:A control console equipped with an optional radio transmitter is required for

wireless communication.

The All Sport radio receiver is typically held in place 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.

If the radio receiver is not already installed:

1� Access the inside of the display by unlocking the latches securing the front access

panel or by removing a digit panel.

2� Position the unit inside the display so the antenna connector can extend through the

hole in the left side of the display.

3� Remove the backing from the fastener strips on the unit, and then rmly press the unit

against the interior, sticking the fastener's adhesive to the sheet metal.

ElectricalInstallation

6

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 side 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

ReferenceDrawing:

Installation Drawing; Outdoor Scbd Gen VI Radio Receiver ...................... DWG-1109181

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). Refer

to DWG-1109181.

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

7

5 BatteryCareandCharging

This section describes care and operation of the on-board battery charging system.

On-Board Charger

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 of the displays and to extend battery life in applications where

display and batteries are stored for long periods of time. The charger is located in the

cabinet interior, attached to the left side of the display back sheet (as viewed with

the front panel open). The charger is connected to the transformer, next to the driver

enclosure, and to the batteries.

Note:Displays built before August 2015 were shipped with the ChargePro model 2607,

which varies from the details provided below. For more information, visit

www.marinco.com/en/2607a.

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5), 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 5: ChargePro Charger

BatteryCareandCharging

8

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

rear 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.9).

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.9).

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 your 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.9).

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

9

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.16).

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.16).

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

10

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.16).

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 on-board 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

11

• 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

12

6 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(up).

Check that the display has 120 VAC power.

There may be a problem with the

batteries/charger. Refer to the Charger

TroubleshootingTable(p.9).

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.

Verify the red DS5 (or DS2) LED on the driver

lights up when sending commands from

the control console. See LEDDriver(p.15).

No radio signal from

control console

Check the receiver (display) and

transmitter (console) radio settings.

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.

Verify the red DS5 (or DS2) LED on the driver

lights up when sending commands from

the control console. See LEDDriver(p.15).

Exchange driver with a working one of the

same part # to verify the problem. Replace

if necessary. See LEDDriver(p.15).

No power to driver

Verify the red DS8 (or green DS1) LED on

the driver is always lit up when the display is

powered on. See LEDDriver(p.15).

Troubleshooting

13

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.16).

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

Verify the red DS5 (or DS2) LED on the driver

lights up when sending commands from

the control console. See LEDDriver(p.15).

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Digit

Segments(p.14).

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

DigitSegments(p.14).

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DigitSegments(p.14) for digits

or LEDDriver(p.15). for drivers.

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

14

Component Locations and Access

ReferenceDrawing:

Component Location; TI-2203......................................................................... DWG-3438261

Component Location; TI-2215......................................................................... DWG-3438262

To gain access to the internal components of the TI-2003/TI-2203, remove the screws

securing a digit panel to the display face, and then carefully lift the panel away from the

scoreboard, sliding it out and down. DWG-3438261 in AppendixA illustrates both digit

panels removed, exposing the internal components.

On the TI-2015/TI-2215, the front panel is hinged on the left side. To gain access to the

internal components, simply unlock the two latches securing the front panel to the

display cabinet, and swing it open. DWG-3438262 in AppendixA illustrates the front panel

open, exposing the internal components.

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 Digit Segments

Digits that are 24" or larger are composed of seven circuit

board segments. The digit segment circuit boards are

mounted to the back of the digit panel (Figure6). Do not

attempt to remove individual LEDs; it may be possible to

make repairs by removing just the defective segment.

To replace a digit segment:

1� Open the front panel as described in Component

LocationsandAccess(p.14).

2� Disconnect the 2-pin plug from the back of the digit

segment 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 segment to the inside of the panel, and then lift

the digit segment off the standoff studs.

4� Position a new digit segment over the studs, and

tighten the nuts.

5� Reconnect the 2-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 front 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; TI-2203......................................................................... DWG-3438261

Component Location; TI-2215......................................................................... DWG-3438262

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.

A

B F

C E

D

G

Figure 6: Digit Segments & Panel

Troubleshooting

15

DWG-3438261 and DWG-3438262 in AppendixA indicate the driver connectors

controlling the digits. The numbers shown in the upper half of a digit indicate which driver

connector is wired to it.

LED Driver

ReferenceDrawings:

Specications; LED Driver IV, 16 Col ................................................................. DWG-288137

Specications; Gyrus LED Driver, 16 Col......................................................... DWG-3071833

Schematic; Battery Operated TI-XXXX w/Horn (prior to June 2016)........... DWG-3074676

Schematic; Battery Operated TI-XXXX with Horn.......................................... DWG-3333212

Component Location; TI-2203......................................................................... DWG-3438261

Component Location; TI-2215......................................................................... DWG-3438262

The LED driver performs the task of switching digits on and off within the display. LED

drivers are located inside of a driver enclosure. Refer to DWG-3438261 and DWG-3438262

to view the location of the driver enclosure. Refer to DWG-3333212 for detailed wiring

schematics.

Note:For displays built before June 2016, refer to DWG-3074676 for wiring schematics.

When troubleshooting driver problems, several LEDs provide diagnostic information. The

number of LEDs and their function depends on the driver type.

Note:While it is necessary to have the display powered on to check the LED indicators,

always turn off display power before servicing.

16-Column"Gyrus"Drivers

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.

16-ColumnDrivers(priortoApril2015)

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-288137.

Troubleshooting

16

ReplacingaDriver

If the driver status indicators are not working correctly, the driver may need replacement.

1� Open the front panel as described in ComponentLocationsandAccess(p.14).

2� Remove the metal cover of the driver enclosure by lifting it up, then back and down

to expose the driver components.

3� 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 or take a picture to

know which plug goes to which jack when connecting the replacement driver.

4� Remove the nuts securing the driver to the inside of the enclosure.

5� Carefully lift the driver from the display and place it on a clean, at surface.

6� Position a new driver over the screws and tighten the nuts.

7� 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.

8� 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.16).

9� Put the metal cover back on the enclosure, securely close the front panel, and then

power up and test the display to verify the issue has been resolved.

SettingtheDriverAddress

ReferenceDrawings:

Address Table; Rotary Switches H and L ........................................................ DWG-1198765

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.

• For 16-column “Gyrus” drivers, addresses

are set through the S2 (L) and S3 (H) rotary

switches on the driver (Figure 7) using a small

athead screwdriver. The displays in this

manual will always be set to Address2, where

H = 0 and L = 2.

• For older 16-column drivers built prior to April

2015, addresses are set through the S1 dip

switch on the driver using a pen or small,

pointed object. The displays in this manual will

always be set to Address2, where switch 2 is

set to ON (up).

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.17) 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.

H

L

Figure 7: Driver Address Dials

Daktronics P1753 User manual

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