Daktronics BB-2140 User manual

201 Daktronics Drive
Brookings, SD 57006-5128
www.daktronics.com/support
800.325.8766
TRANSPARENT SHOT CLOCKS
DISPLAY MANUAL
P1322
ED-15168
Rev 08
12 June 2018
Models
BB-2140 BB-2150 (NBA only)
BB-2141 BB-2151 (NBA only)

Copyright © 2004-2018
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.

– i –
Table of Contents
1 Introduction���������������������������������������������������������������������������������������������������������������������������1
Important Safety Instructions...............................................................................................................1
Specications Label .............................................................................................................................1
Resources ..............................................................................................................................................1
Daktronics Nomenclature ...................................................................................................................2
Control Console....................................................................................................................................2
Specications........................................................................................................................................2
2 Mechanical Installation �������������������������������������������������������������������������������������������������������3
Lifting the Display..................................................................................................................................3
Shot Clock Mounting............................................................................................................................3
Control Enclosure Mounting................................................................................................................3
Remote Horn Enclosure Mounting......................................................................................................3
Camera Mounting................................................................................................................................3
3 Electrical Installation ������������������������������������������������������������������������������������������������������������4
Installation Overview............................................................................................................................4
Power .....................................................................................................................................................4
Grounding �����������������������������������������������������������������������������������������������������������������������������������������4
Power-On Self-Test (POST)....................................................................................................................4
Radio Settings �����������������������������������������������������������������������������������������������������������������������������������4
Signal Connection................................................................................................................................5
Radio Control........................................................................................................................................5
Light Strips ..............................................................................................................................................5
4 Troubleshooting ��������������������������������������������������������������������������������������������������������������������6
Troubleshooting Table..........................................................................................................................6
Component Access & Digit Replacement .......................................................................................7
Schematics............................................................................................................................................8
LED Drivers .............................................................................................................................................8
Replacing a Driver����������������������������������������������������������������������������������������������������������������������������9
Setting the Driver Address ���������������������������������������������������������������������������������������������������������������9
Replacement Parts...............................................................................................................................9
5 Daktronics Exchange and Repair & Return Programs ����������������������������������������������������11
Exchange Program ............................................................................................................................11
Repair & Return Program...................................................................................................................12
Daktronics Warranty & Limitation of Liability ...................................................................................12
A Reference Drawings �����������������������������������������������������������������������������������������������������������13
B Daktronics Warranty & Limitation of Liability��������������������������������������������������������������������31

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Introduction
1
1 Introduction
This manual explains the installation and maintenance of Daktronics Transparent Shot
Clocks. For additional information regarding safety, installation, operation, or service,
refer to the telephone numbers listed in Section 5: Daktronics Exchange and Repair &
Return Programs (p�11). This manual is not specic to a particular installation. Project-
specic information takes precedence over general information found in this manual.
Important Safety Instructions
• Read and understand all instructions before beginning the installation process.
• Disconnect power to the display when not in use or when servicing.
• Disconnect power to the display 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 disassemble control equipment or electronic controls of the display; failure to
follow this safeguard will make the warranty null and void.
• Do not modify the structure or attach any panels or coverings to the display without
the express written consent of Daktronics.
• 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.
ASSY NO.
SER. NO.
MFG DATE
BROOKINGS, SD 57006-5128 PHONE [phone] LL-2306 R01
201 DAKTRONICS DR.
DAKTRONICS
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.
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.
Ensure all applicable materials have been gathered before beginning the installation.
Contact a Daktronics sales coordinator or project manager.
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�9), use
the label to order a replacement. Refer to Section 5: Daktronics
Exchange and Repair & Return Programs (p�11) 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
Control Console
Daktronics transparent shot clocks are typically controlled by the same All Sport 5000
control console as the scoreboard(s) in the facility. Refer to the following manual for
operation:
• All Sport 5000 Series Control Console Operation Manual (ED-11976)
This manual is provided on a CD with the control console and it is also available online at
www.daktronics.com/manuals.
Specications
The chart below details all of the mechanical specications, power requirements, and
address settings for each display in this manual.
Note: All devices require a 120 VAC, 15 A circuit. Displays with a 240 VAC power
requirement are also available (International Use Only).
Model/
Component
Dimensions:
Height, Width, Depth Weight Power (120/240 V)
Driver #
& Address
BB-2140
BB-2150 (NBA)
2'-6" H x 2'-6" W x 3.5" D
(756 mm, 756 mm, 89 mm)
75 lb
(34 kg) N/A N/A
BB-2141
BB-2151 (NBA)
1'-9.5" H x 1'-9.5" W x 3.5" D
(544 mm, 544 mm, 89 mm)
50 lb
(23 kg) N/A N/A
Control Enclosure 1'-2.25" H x 1'-2" W x 3.75" D
(362 mm, 356 mm, 95 mm)
25 lb
(11 kg)
192 Watts,
1.6/0.8 Amps A1 1
Horn Enclosure 5.5" H x 5.5" W x 3.5" D
(140 mm, 140 mm, 89 mm)
5 lb
(2.3 kg) N/A N/A
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

Mechanical Installation
3
2 Mechanical Installation
Mechanical installation consists of lifting and permanently mounting the shot clocks,
control enclosure, and remote horn enclosure. 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.
Lifting the Display
Small Daktronics displays use two lifting straps that encircle the cabinet. It is
recommended to use a spreader bar with the straps.
Note: Daktronics assumes no liability for damages resulting from incorrect setup or lifting
methods.
Shot Clock Mounting
Reference Drawings:
Court View, BB-2140 and BB-2141..................................................................... DWG-184787
Court View, BB-2150 & BB-2151 ....................................................................... DWG-1060357
BB-2140 and BB-2150 shot clocks are mounted behind and above the top center of
the backboard with included hardware. Due to game play, these shot clocks will be
exposed to a lot of movement and vibration. The brackets need to be designed to
minimize vibration and shot clock movement.
BB-2141 and BB-2151 shot clocks are mounted on the rear of the backstop, perpendicular
to the backboard with included hardware. Refer to DWG-184787 and DWG-1060357 for
the approximate location to mount both shot clocks sizes on the backstop.
Control Enclosure Mounting
IMPORTANT: The control enclosure must be located within 30' (9.1 m) of the shot clock.
Mount on the base of the backstop with four #10 self-drilling screws. Power and signal
from the control console will be routed to the enclosure.
Remote Horn Enclosure Mounting
Use two #10 self-drilling screws to mount the remote horn enclosure in an open location
so that sound is able to radiate. A 20' (6.1 m) pre-attached cable is included, but this
cable may be extended to mount the horn enclosure further away from the control
enclosure if needed.
Camera Mounting
Reference Drawings:
Assy; Camera Cable Holder.............................................................................. DWG-249064
If a camera is to be added (BB-2140 and BB-2150 only), camera mounts accepting 2" (51
mm) pipe are available; only one may be used at a time. A cable tray can be used to
route camera wiring down either side of the shot clock. Refer to DWG-249064.
Note: Total weight of camera and mounting arm cannot exceed 50 lb (23 kg). Design
mounting brackets to accommodate both the shot clock and the camera.

Electrical Installation
4
3 Electrical Installation
CAUTION: Only qualied individuals should perform routing and termination to the
display. Electrical contractors are responsible for ensuring that all electrical work meets
or exceeds local and national codes. Daktronics engineering staff must approve all
changes or the warranty will be void.
Installation Overview
Electrical installation involves routing power and control signal wiring through separate
conduit or wire ways.
Note: Control signal cable and some junction boxes are not provided as part of this
system and can be purchased locally or from Daktronics.
Power
Install a grounded receptacle near the equipment so that the power cord can easily
reach it.
Each shot clock control enclosure comes with a 120 VAC or 240 VAC twist lock power
plug. The power plug will need to be attached to a 120 VAC or 240 VAC power cord (by
the customer) as follows:
• 120 VAC wiring: Connect black wire to copper terminal, white wire to nickel terminal,
and green wire to green terminal.
• 240 VAC wiring: Connect black wire to copper terminal, red wire to copper terminal,
and green wire to green terminal.
Grounding
All components of a display system – including but not limited to displays, control
equipment, and connected peripheral equipment – must be electrically grounded.
Only qualied individuals may perform electrical work, including verication of ground
resistance. Daktronics is not responsible for improper grounding or damage incurred as a
result of improper grounding.
Grounding methods must meet the provisions of all applicable local and national codes.
Inspect and verify all grounding methods meet the provisions of all applicable local and
national codes.
Proper grounding is necessary for reliable equipment operation and general electrical
safety. Failure to properly ground the display system may void the warranty, disrupt
operation, damage equipment, and cause bodily harm or death.
Power-On Self-Test (POST)
The display performs a self-test each time that power is turned on and the control
console is powered off or not connected. If the control console is connected and
powered on, the self-test does not run, and data from the control console is shown on
the display after a few seconds. Each self-test pattern will vary depending on the model,
the number of drivers, and types of digits.
Radio Settings
If a radio receiver is installed, the radio broadcast settings (“b1”) and the channel
settings (“C1”) will be displayed in the game clock digits during the POST. These values
must match the settings in the control console. Refer to Radio Control (p�5) and
Control Console (p�2).

Electrical Installation
5
Signal Connection
Reference Drawings:
Connection Diagram: BB-2140 & BB-2141 ....................................................... DWG-184789
Connection Diagram; BB-2150 & BB-2151 ..................................................... DWG-1060264
Signal installation requires routing control cable from the control console to a signal
junction box (J-box) near the display, routing cable from the J-box to the control
enclosure, and routing the appropriate cables from the system components to the
control enclosure. At a minimum, use a paired, 22 AWG shielded cable (Daktronics part
# W-1077).
1� Connect the cable to a 1/4" J-box at the control console end.
2� Route the cable in conduit from the J-box on the control console end to a J-box near
the display.
3� Install the 1/4" phone plug (part # 0L-40683) to the display end of the cable. Be sure
to connect the cable shielding only in the J-box on this end. DO NOT connect cable
shielding at the J-box near the control console.
4� Insert the plug into the J31 SIGNAL IN jack on the front of the control enclosure.
5� Connect the shot clock(s), remote horn enclosure, and any optional light strip kits to
the appropriate jacks on the control enclosure as shown in DWG-184789 and DWG-
1060264.
6� Connect a signal cable from the J-box to the J1, J2, or J3 jack on the back of the All
Sport 5000 console.
Also connect the Shot Clock Start/Stop Switch (Daktronics part # 0A-1196-0031) to the
J7 jack on the All Sport 5000.
Radio Control
Radio control is an option for Daktronics shot clocks. The system provides scoreboard
control via a 2.4 GHz, extra-high frequency FM signal.
The radio transmitter and receiver are not standard equipment. This setup requires a
control console equipped with radio output as well as a radio receiver plugged into
the J7 jack in the control enclosure and mounted internally to the front panel of the
enclosure.
Note: A 5-pin to 6-pin adaptor (Daktronics part # W-2913) is required to connect newer
radio units to the shot clock driver.
For additional information about this option, contact a Daktronics representative. For
complete instructions on setting up radio control, refer to the Gen VI Radio Installation
Manual (DD2362277), available online at www.daktronics.com/manuals.
Light Strips
For installations that use LED backstop light strips, refer to the LED End-of-Period Basketball
Lighting Display Manual (ED-13652), or the BB-2135 Backboard LED Light Strips Display
Manual (ED-14187), both available online at www.daktronics.com/manuals.

Troubleshooting
6
4 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 device, 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 control enclosure is
receiving 120 or 240 VAC power.
No power to the control
console
Ensure the console is plugged into a 120 or
240 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 control enclosure is
receiving 120 or 240 VAC power.
Check that the red DS3 LED on the driver
lights up when sending commands from
the controller; see LED Drivers (p�8).
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 control enclosure is
receiving 120 or 240 VAC power.
Check that the red DS3 LED on the driver
lights up when sending commands from
the controller. See LED Drivers (p�8).
Exchange the driver with a working one of
the same part #. Replace if necessary. See
LED Drivers (p�8).
No power to driver
Check that the green DS2 LED on the driver
remains lit up when the display is powered
on. See LED Drivers (p�8).