Daktronics COLORSMART BB-3146 User manual

201 Daktronics Drive
Brookings, SD 57006-5128
www.daktronics.com/support
800.325.8766
COLORSMART®
INDOOR LED SCOREBOARDS
SERVICE MANUAL
P1763
DD2507404
Rev 07
25 August 2021
Models
BB-3101 BB-3114 BB-3146
BB-3102 BB-3115 BB-3147
BB-3103 BB-3121 SD-3101
BB-3104 BB-3123 SD-3102
BB-3105 BB-3124 SD-3103
BB-3106 BB-3125 SD-3106
BB-3107 BB-3126 TI-3103
BB-3108 BB-3142

Copyright © 2013-2021
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
Product Safety Approval .....................................................................................................................2
2 Troubleshooting ��������������������������������������������������������������������������������������������������������������������3
Troubleshooting Table..........................................................................................................................3
Component Locations and Access ...................................................................................................5
Replacing Digits....................................................................................................................................5
LED Drivers .............................................................................................................................................6
Replacing a Driver����������������������������������������������������������������������������������������������������������������������������7
Setting the Driver Address ���������������������������������������������������������������������������������������������������������������7
Multiple Drivers ���������������������������������������������������������������������������������������������������������������������������������8
Radio Connections...............................................................................................................................8
Radio Interference����������������������������������������������������������������������������������������������������������������������������9
Segmentation and Digit Designation...............................................................................................10
Schematics..........................................................................................................................................10
Replacement Parts.............................................................................................................................10
3 TNMC and Electronic Caption Troubleshooting ��������������������������������������������������������������12
Display Overview ................................................................................................................................12
Initialization Information at Startup...................................................................................................12
Troubleshooting ..................................................................................................................................13
Power and Signal Summary ..............................................................................................................13
Component Locations and Access .................................................................................................14
Replacing a Component ..................................................................................................................14
Display Maintenance.........................................................................................................................15
Replacement Parts.............................................................................................................................15
4 Daktronics Exchange and Repair & Return Programs ����������������������������������������������������16
Exchange Program ............................................................................................................................16
Repair & Return Program...................................................................................................................17
Daktronics Warranty & Limitation of Liability ...................................................................................17
A Specications����������������������������������������������������������������������������������������������������������������������19
B Schematics��������������������������������������������������������������������������������������������������������������������������21
C Drawings������������������������������������������������������������������������������������������������������������������������������23
D Daktronics Warranty & Limitation of Liability��������������������������������������������������������������������25

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Introduction
1
1 Introduction
This manual explains the troubleshooting and service of Daktronics ColorSmart®Indoor
LED Scoreboards, Game/Shot Clocks, Statistics Panels, and Timing Displays. For additional
information regarding safety, installation, operation, or service, refer to the telephone
numbers listed in Section 4: Daktronics Exchange and Repair & Return Programs (p�16).
This manual is not specic to a particular installation.
Important Safeguards
• Read and understand all instructions before servicing the display�
• Disconnect the display power when not in use or when servicing�
• Disconnect the display power before servicing power supplies to avoid electrical
shock� Power supplies run on high voltage and may cause physical injury if touched
while powered�
• 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 afxed to the top of the display, similar to the one shown in Figure 1.
Note: If something mounted above the display obscures this label, a copy of this label
can be found behind the PRIMARY DRIVER access panel.
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
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
CONFORMS TO
UL STD 48
CERTIFIED TO CSA
STD C22.2 NO. 207
17800
BB-3101-CS-UV-120
RMN: DAKT-0405-00
120 V ~: 50/60Hz
MAX AMPS AC: V ~: 1A
MAX WATTS AC: 100W
0A-1763-0001 HRev: 00
SN: 1001
05/22/19
3219728 0001
Product Number Model Number
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. Note that the
Product Number(s) are sometimes used to distinguish different generations of displays
that have the same model number.
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 Drawings:
System Riser Diagram....................................................................................... DWG-1007804
Daktronics identies manuals by the DD or ED number located on the cover page.
Listed below are drawing types commonly used by Daktronics, along with the information
typically provided. All drawings referenced in this manual are found in the appendices.
• Schematic Drawings: describe internal power and signal wiring as well as
interconnections between display sections; they may also include digit designations
and driver addressing information
• Shop Drawings: describe mounting methods to structural elements, access method
(front or rear), and power and signal entrance points
• System Riser Diagrams: describe power/signal connections between components
and the control location; they may also include control room layout and schematic
• Final Assembly Drawings: describe internal display component locations and
detailed product appearance with part numbers and quantities
Project-specic information takes precedence over any other general information found
in this manual. Ensure all applicable materials have been gathered before servicing.
Contact a Daktronics sales coordinator or project manager.
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�10), use
the label to order a replacement. Refer to Section 4: Daktronics
Exchange and Repair & Return Programs (p�16) 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
Product Safety Approval
Daktronics indoor displays 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

Troubleshooting
3
2 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
This section lists potential problems with the system, indicates possible causes, and
suggests corrective action. This list does not include every possible problem, but it does
represent some of the more common situations that may occur.
Problem Possible Cause Solution/Items to Check
Display does not light,
and console does not
work
No power to the display
Check that the main circuit breaker for the
display is on.
Check that the display is receiving 120
VAC power.
No power to the control
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 console if
necessary.
Display digits do not
light, but console works
No wired signal from
control console
Check that the display is receiving 120
VAC power.
Check that the red DS2 LED on the driver
lights up when sending commands from
the controller; see LED Drivers (p�6).
No radio signal from
control console
Verify that both the console and display
antennas are securely tightened and in a
vertical position.
Keep the console 20–500' (6–152 m) away
from the display. 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. Move the console 20–30' (6–9
m) from the display and test again.
Replace the radio receiver.
No signal to driver
Check that the display is receiving 120
VAC power.
Check that the red DS2 LED on the driver
lights up when sending commands from
the controller. See LED Drivers (p�6).
Exchange the driver with a working one of
the same part #. Replace if necessary. See
LED Drivers (p�6).
No power to driver
Check that the green DS1 LED on the driver
remains lit up when the display is powered
on. See LED Drivers (p�6).

Troubleshooting
4
Problem Possible Cause Solution/Items to Check
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 All Sport
5500 Control Console Operation Manual
(ED-16809).
Incorrect driver address
Ensure all drivers are set to the correct
address. See Setting the Driver Address
(p�7).
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 DS2 LED on the driver
lights up when sending commands from
the controller. See LED Drivers (p�6).
Display works, but some
LEDs always stay on
Short in digit or indicator
circuit
Exchange the digit/indicator with a
working one of the same part # to verify
the problem. Replace if necessary. See
Replacing Digits (p�5).
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.
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�5) or LED Drivers
(p�6).
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 the
scoreboard
Another console’s radio signal may be
transmitting to the display. For example,
two basketball scoreboards in different
gyms that are within 500' (152 m) of
each other. Change the radio settings as
described in Radio Connections (p�8).
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.
Display works, but one
section of digits does
not light
Bad multi-section
connection
Verify power/signal interconnects between
display sections are properly connected.
Refer to appropriate schematic drawings.
Bad transformer
Exchange the transformer with a working
one of the same part # to verify the
problem. Replace if necessary.

Troubleshooting
5
Component Locations and Access
All internal electronic components and digits are reached by opening a digit panel on
the front of the display.
Digit panels are typically held in place on the
display face by screws. To remove a digit,
simply unfasten the screws and carefully lift it
from the cabinet. The power/signal plug can
then be removed from the connector on the
back of the digit to completely free the digit
and access internal components.
Component location varies with each model, but drivers and power and signal
components are typically mounted inside the cabinet behind a digit panel. To locate
the driver(s), look for a warning label similar to that shown in Figure 4.
Replacing Digits
LEDs are embedded in a circuit board that is mounted to the back of the digit 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 circuit board (Figure 5):
Stud Standoff
Digit Panel Digit Circuit
Board
Light Diffuser
Assembly
Power/
Signal IN
Nut
Figure 5: UniView Digit Assembly
1� Open the digit panel as described in Component Locations and Access (p�5).
2� Disconnect the 9-pin plug from the back of the digit by squeezing the locking tabs
together and pulling the connector free.
3� Use a 9/32" nut driver to remove the nuts securing the digits to the aluminum
standoffs, and then lift the digit off the standoff/diffuser assembly.
4� Position a new digit over the standoffs, and then tighten the nuts. It may be necessary
to also tighten the standoffs if they became loose while removing 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� Secure the digit panel to the display face with the four screws, and then power up
and test the display to verify the issue has been resolved.
BEHIND THIS PANEL
DRIVER IS LOCATED
PRIMARY
Figure 4: Power Warning Label

Troubleshooting
6
LED Drivers
Reference Drawings:
4 Column LED Driver II; Specications .............................................................. DWG-123783
Specications; Driver, MCAST, 16 Col............................................................... DWG-284554
LED drivers perform the task of switching digits on and off within the display. LED drivers
are mounted to a driver tray. Refer to Figure 6 to view the location and components of a
driver tray.
TRANSFORMER
105
BRNTAN
94
PNK
72
ORG
83
61
WHTBLU
83
TRANSFORMER
PNK
BRN
105
TAN
94
WHTBLU
72
ORG
61
CR1
AC
AC
AC
AC
1
RED BLK
2
PNK
3
TAN
4
SIGNAL OUT
SIGNAL IN
CUR. LOOP
SIGNAL
TB-31
POWER IN
J-3
J-1
HORN OUT
CR2
1
BLU ORG
2
PNK
3
TAN
4
POWER
TB-42 POWER
1234
BEFORE SERVICING.
DISCONNECT POWER
AT EXPOSED TERMINALS.
HAZARDOUS VOLTAGE
TENSION DANGEREUSE
À TERMINAUX EXPOSÉS.
DÉBRANCHEZ L'ÉLECTRICITÉ
AVANT L'ENTRETIEN.
H L
012
3
4
5
6
7
8
9
A
B
C
D
EF
012
3
4
5
6
7
8
9
A
B
C
D
EF
H L
012
3
4
5
6
7
8
9
A
B
C
D
EF
012
3
4
5
6
7
8
9
A
B
C
D
EF
ColorSmart
Driver Tray
Signal Terminal BlockPower Terminal Block
Horn Interface
Card
Transformers Multicast
LED Driver
Driver Status
Indicators
Driver Status
Indicators
16-Column
LED Driver
Signal Terminal Block
Transformers
PanaView/UniView
Driver Tray
PanaView/UniView
Driver Tray (19 VDC)
Driver Status
Indicators
16-Column
LED Driver
Signal Terminal
Block
Power Terminal
Block
Figure 6: Driver Tray Components
All ColorSmart scoreboards and ColorSmart-compatible statistics displays use 16-column
Multicast drivers, while some smaller displays use 4-column drivers. Several models
contain more than one driver to accommodate all of the digits and indicators. Refer
to the drawings attached to the product specication sheets listed in Appendix A to
determine the type and number of drivers for a particular scoreboard model. Also refer
to Appendix B for schematic drawings.
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 status
indicators, always disconnect power before servicing.
LED Color Function Operation Summary
DS1
DS2 Green Power Steady on DS1 (16-column) / DS2 (4-column) will be on and steady to indicate the driver has power.
DS2
DS1 Red Signal RX Steady on or blinking
DS2 (16-column) / DS1 (4-column) will be on or
blinking when the driver is receiving a signal and
off when there is no signal.
DS3 Amber Status Blinking
DS3 (16-column) will be blinking at one second
intervals to indicate the driver is running (not
available on 4-column LED drivers).
• Refer to DWG-284554 in Appendix C for detailed driver pin out/switch specications
of 16-column drivers.
• Refer to DWG-123783 in Appendix C for detailed driver pin out/switch specications
of 4-column drivers.