Daktronics AB-1600-1.5,2.5 User Manual
1600 Series, 2.5 Inch
Small Matrix Displays
(120V – Front Access)
Installation, Maintenance &
Troubleshooting Manual
ED11944
Venus
Phoenix
ED11944
Product 1195
Rev 4 – 26 February 2002
Copyright 2001-02 Daktronics, Inc.
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.
Display Serial # _________________
Display Model # _________________
Date Installed ___________________
National Electrical Code
, Mate-N-Lok, DeoxIT and CaiLube are trademarks of their respective companies.
and SunSpot7 are registered trademarks of Daktronics, Inc.
7
is a registered trademark of NFPA International
P.O. Box 5128, 331 32nd Ave., Brookings, SD 57006
Tel (605) 697-4035 or (877) 605-1114 Fax (605) 697-4444
www.daktronics.com e-mail: helpdesk@daktronics.com
Table of Contents
Section 1: Introduction..................................................................................................1-1
1.1 How to Use This Manual............................................................................................1-1
1.2 Display Configurations...............................................................................................1-3
1.3 Display Definitions.....................................................................................................1-4
1.4 Daktronics Nomenclature...........................................................................................1-8
Section 2: Mechanical Installation...............................................................................2-1
2.1 Support Column Selection..........................................................................................2-1
2.2 Lifting the Display .....................................................................................................2-1
2.3 Cabinet Mounting.......................................................................................................2-2
2.4 Light Detector and Temperature Sensor Installation..................................................2-3
2.5 Display Ventilation Requirements .............................................................................2-4
2.6 Verifying Correct Lens and Module Position ............................................................2-5
Section 3: Electrical Installation...................................................................................3-1
3.1 Common Connectors..................................................................................................3-1
3.2 Display Power Requirements.....................................................................................3-3
3.3 Checking Line Voltage & 24-Hour Voltage Monitoring ...........................................3-3
3.4 Preparing the Display for Power & Signal Connection..............................................3-5
3.5 Bringing Power to the Display...................................................................................3-5
Power Disconnect Switch...........................................................................................3-6
Power Termination at the Display..............................................................................3-6
Grounding...................................................................................................................3-7
Power Installation .......................................................................................................3-7
3.6 Bringing Signal to the Display...................................................................................3-8
Venus 1500 System Using RS/232 Signal .................................................................3-9
Venus 1500 System Using RS/422 Signal ...............................................................3-10
Venus 1500 System Using Modem/Telephone Cable..............................................3-11
Venus 1500 System Using Fiber Optic Signal.........................................................3-11
Venus 4600 System Using Fiber Optic Signal.........................................................3-12
3.7 Interconnect of 2V Displays.....................................................................................3-13
Venus 1500 Systems ................................................................................................3-13
Venus 4600 Systems ................................................................................................3-14
3.8 Controlling Display Brightness................................................................................3-14
Light Detector Installation - Venus 1500 Systems...................................................3-15
Optional Photo/Temp Sensor Installation - Venus 4600 Systems............................3-15
3.9 Optional External Temperature Sensor....................................................................3-16
Optional Temp Sensor Installation - Venus 1500 Systems......................................3-16
Optional Photo/Temp Sensor Installation - Venus 4600 Systems............................3-17
3.10 First Time Power-Up................................................................................................ 3-17
3.11 Lamp Voltage Check................................................................................................3-18
Table of Contents i
Section 4:
4.1 Maintenance & Troubleshooting Overview............................................................... 4-1
4.2 Operational Summary................................................................................................ 4-2
4.3 Servicing of Display Components............................................................................. 4-6
4.4 Display Maintenance ............................................................................................... 4-20
4.5 Lamp Testing & Maintenance ................................................................................. 4-20
4.6 Lens/Reflector Assembly Maintenance................................................................... 4-21
4.7 Filter Maintenance................................................................................................... 4-24
4.8 Fan Maintenance...................................................................................................... 4-24
4.9 Interior Maintenance................................................................................................ 4-25
4.10 Structural Maintenance & Inspection ...................................................................... 4-25
4.11 Periodic Line and Lamp Voltage Checks ................................................................ 4-26
4.12 Cleaning the Signal Connectors............................................................................... 4-26
4.13 FCC Modem Notice................................................................................................. 4-26
4.14 Troubleshooting....................................................................................................... 4-27
4.15 Replacement Parts List ............................................................................................ 4-28
4.16 Daktronics Exchange/Repair & Return Programs................................................... 4-29
Maintenance & Troubleshooting................................................................4-1
Power Summary......................................................................................................... 4-2
Signal Summary......................................................................................................... 4-3
Ventilation & Temperature Sensing Summary.......................................................... 4-5
Lenses ........................................................................................................................ 4-7
Lamps......................................................................................................................... 4-8
Lens/Reflector Assemblies ........................................................................................ 4-9
Lampbanks............................................................................................................... 4-11
Vertical Shift Boards ............................................................................................... 4-12
Fans.......................................................................................................................... 4-13
Filters....................................................................................................................... 4-14
Transformers............................................................................................................ 4-15
Additional Venus 1500 System Components.......................................................... 4-15
Additional Venus 4600 System Components (Serial Line Interface)...................... 4-19
Weather Stripping Maintenance .............................................................................. 4-22
Louver Maintenance ................................................................................................ 4-22
Appendix A: Project Specific Drawings.............................................................. A-1
Appendix B: General Drawings........................................................................... B-1
Appendix C: Forms & Report............................................................................... C-1
ii Table of Contents
List of Figures
Figure 1: Drawing Label ....................................................................................................................1-2
Figure 2: Display ID Label.................................................................................................................1-2
Figure 3: Possible Signal Configurations...........................................................................................1-3
Figure 4: Possible Cabinet Configurations.........................................................................................1-3
Figure 5: Button Thermostat ..............................................................................................................1-4
Figure 6: Fan Controller Enclosure....................................................................................................1-4
Figure 7: Junction Box .......................................................................................................................1-4
Figure 8: Lampbank (Lamp Side)............................................................................................................1-5
Figure 9: Two Lampbanks on Lens / Reflector Assembly (Solder Side).................................................1-5
Figure 10: Lens/Reflector Assembly..................................................................................................1-5
Figure 11: Light Detector...................................................................................................................1-5
Figure 12: Module..............................................................................................................................1-6
Figure 13: Power Termination Panel..................................................................................................1-6
Figure 14: Serial Line Interface..........................................................................................................1-6
Figure 15: Signal Converter ...............................................................................................................1-7
Figure 16: Temp Sensor .....................................................................................................................1-7
Figure 17: Transformer.......................................................................................................................1-7
Figure 18: Venus 1500 Controller......................................................................................................1-7
Figure 19: Venus A/B Transmit I/F....................................................................................................1-7
Figure 20: Vertical Shift Board..........................................................................................................1-7
Figure 21: Module Numbering (16x80 Display) – Front View..........................................................1-8
Figure 22: Module Numbering Detail................................................................................................1-8
Figure 23: Lampbank Numbering (16x80) - Front View..................................................................1-8
Figure 24: Display Lifting..................................................................................................................2-1
Figure 25: Possible Mounting Method...............................................................................................2-2
Figure 26: Bottom Clearance..............................................................................................................2-3
Figure 27: Minimum Clearance for Sign Bottom...............................................................................2-4
Figure 28: Correct Lens Position........................................................................................................2-5
Figure 29: Ribbon Cable Connector 1................................................................................................3-1
Figure 30: Ribbon Cable Connector 2................................................................................................3-1
Figure 31: Fiber Optic........................................................................................................................3-1
Figure 32: Termination Panel (Left) and Termination Block (Right)................................................3-2
Figure 33: Phoenix Connector............................................................................................................3-2
Figure 34: Mate-n-Lok Connector......................................................................................................3-2
List of Figures iii
Figure 35: Tab Connector.................................................................................................................. 3-2
Figure 36: Installation with Ground and Neutral Conductor Provided.............................................. 3-8
Figure 37: Installation with only Neutral Conductor provided.......................................................... 3-8
Figure 38: TB7 on Venus 1500 controller....................................................................................... 3-15
Figure 39: TB1 on A/B Interface..................................................................................................... 3-16
Figure 40: Removing an ON Lamp..................................................................................................3-19
Figure 41: Lamp Voltage Tester...................................................................................................... 3-19
Figure 42: Power Routing Example................................................................................................... 4-3
Figure 43: Signal Routing for Venus 1500, 16-High Display ........................................................... 4-4
Figure 44: Signal Routing for Venus 4600, 16-High Display ........................................................... 4-5
Figure 45: Cabinet and Lens Airflow ................................................................................................ 4-6
Figure 46: Removing a Lens.............................................................................................................. 4-7
Figure 47: Replacing a Lens .............................................................................................................. 4-7
Figure 48: Lampbank and Lens/Reflector Assy. ............................................................................... 4-8
Figure 49: Lamp Removal................................................................................................................. 4-9
Figure 50: Assembly with Lenses.................................................................................................... 4-10
Figure 51: Assembly Removal......................................................................................................... 4-10
Figure 52: Lampbank Components..................................................................................................4-11
Figure 53: Lampbank Latch............................................................................................................. 4-12
Figure 54: VSB Components........................................................................................................... 4-12
Figure 55: Typical Fan..................................................................................................................... 4-13
Figure 56: Removing a Filter Assembly.......................................................................................... 4-14
Figure 57: Removing a Filter from a Filter Assembly..................................................................... 4-14
Figure 58: Venus 1500 Controller Board & MDC Board................................................................ 4-15
Figure 59: Optional Modem Board.................................................................................................. 4-17
Figure 60: Optional Fiber Optic Board............................................................................................ 4-18
Figure 61: Master-Echo Board Components ................................................................................... 4-18
Figure 62: Serial Line Interface Detail ............................................................................................ 4-19
Figure 63: Weather Stripping Application....................................................................................... 4-22
Figure 64: Checking Weather Stripping .......................................................................................... 4-22
Figure 65: Lens Assembly Components.......................................................................................... 4-23
Figure 66: Removing a Metal Side Plate......................................................................................... 4-23
Figure 67: Separating Rows above Damaged Louver...................................................................... 4-23
iv List of Figures
Section 1: Introduction
1.1 How to Use This Manual
This manual explains the installation, maintenance and troubleshooting for the Daktronics 1600 series
Incandescent, 2.5-inch small matrix display system. For additional questions regarding the safety,
installation, operation or service of this system, please refer to the telephone numbers listed on the
cover page of this manual.
The manual is divided into four sections: Introduction, Mechanical Installation, Electrical Installation
and Maintenance & Troubleshooting.
• Introduction covers the basic information needed to make the most of the rest of this manual.
Take time to read the entire introduction as it defines terms and explains concepts used throughout
the manual.
• Mechanical Installation provides general guidance on display mounting.
• Electrical Installation provides general guidance on terminating power and signal cable at the
display.
• Maintenance & Troubleshooting addresses such things as removing basic display components,
troubleshooting the display, performing general maintenance and exchanging display components.
At the end of this manual are three appendices: Appendix A: Reference Drawings, Appendix B:
Forms & Reports and Appendix C: Forms and Reports. Drawings are in alphanumeric order unless
otherwise specified.
• Appendix A contains any drawings referenced throughout this manual that are general to all 1600
series Incandescent 2.5O displays. In addition, this appendix contains any drawings specific to this
display. These drawings always supersede any similar drawings found in this manual.
• Appendix B contains any checklists or general information relevant to this display.
• Appendix C contains any forms and reports that are relevant to this display.
Listed below are a number of drawing types commonly used by Daktronics, along with the
information that each is likely to provide.
• System Riser Diagrams: overall system layout from control room to display, power and phase
requirements.
• Shop Drawings: fan locations, transformer locations, mounting information, power and signal
entrance points and access method (front or rear).
• Schematics: power wiring, signal wiring, panelboard or power termination panel assignments,
signal termination panel assignments and transformer assignments.
The box on the next page, Figure 1, illustrates a Daktronics drawing label. The drawing number is
located in the lower-right corner of the drawing. This manual refers to drawings by listing the last set
of digits and the letter preceding them. In the example below, the manual refers to the drawing as
Drawing A-114667.
Introduction 1-1
Figure 1: Drawing Label
All references to drawing numbers, appendices, figures or other manuals use in bold typeface, as
shown below.
“Refer to Drawing A-114667 in Section 3 for the location of the Venus 1500 controller.”
In addition, any drawings referenced within a particular sub-section are listed at the beginning of that
sub-section in the following manner:
Reference Drawing:
Shop Drawing, 16 High 2 ½
Appendix A contains all referenced drawings.
Daktronics identifies manuals by the ED number located on the cover page of each manual. For
example, Daktronics refers to this manual as ED11944.
Please list the model number, display serial number and the date this display became operational in the
blanks provided on the front page of this manual. The ID label, located on the front of the display on
the right end, contains the serial and model numbers. This label will look similar to the one shown in
Figure 2. When calling Daktronics Customer Service, please have this information available to ensure
that we service your request as quickly as possible.
˝ Small Matrix..........................................Drawing A-114667
Figure 2: Display ID Label
Daktronics builds displays for long life and require little maintenance. However, from time to time,
certain display components will need replacing. The Replacement Parts List in Section 4.15
provides the names and part numbers of components that may need to be ordered during the life of this
display.
Following the Replacement Parts List in Section 4.15 is the Exchange/Replacement Procedure in
Section 4.16. Refer to these instructions if any display component needs repair or replacement.
1-2 Introduction
1.2 Display Configurations
Daktronics offers 1600 series small matrix displays as monochrome units. The displays are configured
in one of two ways: with Venus
1500 software that sends data to a Venus 1500 controller within the
display or with Venus 4600 software that sends data to a serial line interface within the display. In
addition, the Venus 1500-controlled display offers a number of different computer-to-sign
communication methods.
Figure 3 illustrates the possible signal configurations for a small matrix display. Notice that a Venus
1500-controlled display (monochrome) can configure for RS/232, RS/422, modem or fiber optic
communication. The Venus 4600-controlled display has only one standard configuration – fiber optic.
Figure 3: Possible Signal Configurations
Daktronics builds and ships small matrix displays as self-enclosed units that require only mounting
and power/signal hookup. Figure 4 illustrates some common cabinet configurations.
Figure 4: Possible Cabinet Configurations
Single face displays are single-sided, stand-alone units. They do not have the ability to drive an echo
display.
2V displays consist of two single-face units; one master and one echo, with an interconnect harness
between cabinets. All incoming power and signal cables connect within the cabinet of the master
display.
Introduction 1-3
1.3 Display Definitions
Button Thermostats: Small, round, nickel-size thermostats mounted within
the display on the transformers. The master-echo board within the fan
controller enclosure monitors these thermostats. Figure 5 shows a button
thermostat.
Controller Computer: The computer used to program the display. This
display will use either Venus 1500 or Venus 4600 software.
Display Controller: A general term used to describe the device housed within the display cabinet that
receives signal from the controller computer. This display will use as a controller either 1) a Venus
1500 controller or 2) a serial line interface.
Fan Controller Enclosure: Assembly found within the display that serves as a junction point for the
button thermostats. Venus 1500 systems will also have a master-echo board with in the enclosure.
Venus 4600 systems have no master-echo board within the fan controller enclosure, but instead route
the thermostat status back to the serial line interface board. Figure 6 shows the fan controller
enclosure, both with and without the enclosure cover. The master-echo board is on the right. The
Venus 4600 fan control enclosure looks similar, but lacks the master/echo board.
Figure 5: Button
Thermostat
Figure 6: Fan Controller Enclosure
Fiber Optic: A standard communication method using light (signal) transmitted through a glass fiber.
Fiber optic cable cannot exceed 1,200 feet. A signal converter may be required for fiber optic and
RS/232 configuration. This communication method is an option in both Venus 1500 and Venus 4600
Systems.
Junction Box: Small enclosure in which display data
traveling on serial cable from the computer is transferred to
RS/232 cable. The junction box must be located within 25
feet of the display. Only Venus 1500 systems using the
RS/232 communication option utilize this junction box.
Figure 7 illustrates a junction box.
Figure 7: Junction Box
1-4 Introduction
Lampbank: A circuit board consisting of an array of lamps 8 pixels high by 4 pixels wide. Figure 8
shows a single lampbank, front and back. Two lampbanks mount to the rear of each lens/reflector
assembly as seen in Figure 9. If necessary, a lampbank can be easily removed from the lens/reflector
assembly.
Figure 8: Lampbank (Lamp Side)
Figure 9: Two Lampbanks on Lens /
Reflector Assembly
(Solder Side)
Lens/Reflector Assembly: Consists of reflectors, lenses and louvers. It is eight lenses high by eight
lenses wide. A lens/reflector assembly is easily removable for maintenance. Figure 10 illustrates the
front and back of a lens/reflector assembly. Two lampbanks mount on the rear of this assembly, as
seen in Figure 9.
Figure 10: Lens/Reflector Assembly
Light Detector: An optional device that senses ambient light levels. The light
detector and the controller operate together to dim the display when maximum
lamp brightness is not required. This saves energy and extends lamp life. Figure
11 shows the light detector for the Venus 1500 systems.
Louver: A piece of aluminum, eight pixels long, positioned above each row of
lamps to provide contrast and help direct light.
Figure 11: Light
Detector
Introduction 1-5
Module: Consists of four lampbanks mounted to the backs of two lens assemblies. A module, Figure
12, is eight pixels high by 16 pixels wide. One transformer can power two modules (256 lamps).
Figure 12: Module
Modem: A standard communication method that utilizes standard phone transmission lines, and is an
option with the Venus 1500 System.
Pixel: Daktronics describes a pixel as being the point of light created by a single lamp behind a single
lens.
Power Termination Panel: Assembly in which incoming power
connects to the display. It mounts to the cabinet on the left end
(front view). Figure 13 shows the power termination panel
enclosure, both with the cover on the enclosure and with it
removed.
Quarter-Turn Fasteners: A type of latching mechanism found
on many Daktronics assembly enclosures. Using a Phillips
screwdriver, turn the fastener one-quarter-turn counter-clockwise
to release the latch and one-quarter-turn clockwise to secure the
latch.
RS/232: A standard PC communication type with a maximum
Figure 13: Power Termination Panel
cable length of 25 feet (8 meters).
RS/422: A standard differential communication type with a maximum cable length of 4,000 feet (1.2
kilometers).
Serial Line Interface (SLI): The controller
board used in Venus 4600 display systems. The
serial line interface (also called a line receiver)
receives signal from the controller computer via
fiber optic cable and routes it to the display.
Figure 14 illustrates the metal enclosure that
houses the serial line interface, both with the
enclosure cover in place and with the enclosure
cover removed. The serial line interface board is
seen on the right.
Figure 14: Serial Line Interface
1-6 Introduction
Sign Address: An identification number assigned to each sign of a
network. The control software uses the address to locate and
communicate with each display. Displays on the same network cannot
have the same address.
Signal Converter: A Daktronics-supplied unit that converts the data
from RS/232 to RS/422. The signal converter is used in Venus 1500
RS/422 systems. Figure 15 shows the converter.
: SunSpot displays, also called monochrome displays, use
Figure 15: Signal
Converter
SunSpot
only one color lens - usually white. “SunSpot” is a registered trademark
of Daktronics, Inc.
Temperature Sensor: The temperature sensor is an optional device that
monitors temperature outside the display. The temperature sensor can be used to
offer “time and temperature” updates. Figure 16 shows a common temperature
sensor. Daktronics offers many enclosure styles.
Transformer: The device that transforms incoming
AC voltage to the operational AC voltage required by
the display electronics. Figure 17 illustrates a
transformer.
Figure 16: Temp
Sensor
Venus 1500 Controller: The type of controller used in Venus 1500
display systems. It consists of a controller board, MDC (multipurpose
display controller) board, address board, and possibly a fiber optic or
modem board, depending on display configuration. The controller receives
data from the controller computer via RS/232 cable, RS/422 cable, fiber
Figure 17: Transformer
optic cable or modem/phone cable. The data then routes to the rest of the
display. Figure 18 illustrates the Venus 1500 controller in its enclosure.
The ‘?’ indicates the position of a fiber optic or modem board, if used.
Venus 1500 System: A display configuration that uses a controller computer
running Venus 1500 software to control a display housing a Venus 1500
controller. Venus 1500 systems can use any one of four methods to transmit data
from the controller computer to the display: RS/232, RS/422, fiber optic or
modem/phone cable. This display is set up for one of these methods.
Venus 4600 System: A display configuration that uses a controller computer
running Venus 4600 software to control a display housing a serial line interface.
Venus 4600 systems transmit data from the controller computer to the display
over fiber optic cable.
Venus A/B Transmitter Interface: A Daktronicssupplied unit used to convert RS/232 signal to fiber
optic signal. Venus 4600 Systems uses this. Figure
19 shows the transmitter interface.
Figure 18: Venus
1500 Controller
Vertical Shift Board (VSB): Circuit board
mounted to the back of the left-most (front view)
lampbank in each row of modules. It routes data
from the controller both down the row and to the
Figure 19: Venus A/B
Transmit I/F
VSB below it. Figure 20 shows the VSB. Figure 9
shows the VSB on a lampbank. The vertical shift
board is also known as a vertical shift register
Figure 20: Vertical
Shift Board
Introduction 1-7
(VSR).
1.4 Daktronics Nomenclature
The Daktronics module numbering system assigns numbers to modules to aid in wiring and
troubleshooting. Remember, a module is two, side-by-side lens/reflector assemblies. Figure 21
illustrates the numbering on a typical 16x80 pixel small matrix display. Figure 22 explains the
meaning of the module numbering.
Figure 21: Module Numbering (16x80 Display) – Front View
In addition, lampbanks also have a numbering system.
There are two lampbanks mounted on the back of each
lens/reflector assembly. Therefore, there are four
lampbanks per module. Figure 23 illustrates this
lampbank numbering. It uses the same first four digits as
the module numbering system, but with an A, B, C or D
at the end to indicate whether it is the first, second, third
or four lampbank on that module.
Figure 23: Lampbank Numbering (16x80) - Front View
Figure 22: Module Numbering Detail
1-8 Introduction
In addition, when using Daktronics drawings it may also be helpful to know the following.
• “F” denotes a fuse (F1, F2, F3…)
• “T” denotes a transformer (T1, T2, T3)
• “TB” denotes a termination block – power or signal.
• “A” denotes an assembly. These are divided according to power or signal.
Power assemblies consist of a number of power components, usually within a common enclosure.
For instance, a power termination block (TB41) may be located within a power termination panel
enclosure (A41). A second power termination panel has the label A42, a third A43, etc.
Signal assemblies consist of a number of signal routing or transmission components, usually
within a common enclosure. For instance, the enclosure housing the Venus 1500 controller or
serial line interface for this display is A31.
Introduction 1-9
Section 2: Mechanical Installation
The Daktronics engineering staff must approve any changes that may affect the weather
tightness or cooling ability of this display. This includes, but is not limited to:
• Border shrouding
• Back sheets
• Cooling fans
• Fan filters
• Filler panels
Submit detailed drawings of the proposed changes to our engineering staff for evaluation and
approval or the warranty will be null and void.
Appendix B contains two copies of the Installation Quality Checklist. It covers both mechanical and
electrical installation. This form is intended to assist in display installation and assure its dependable
operation. Make sure to act upon each item of the checklist. Following installation, return one copy to
Daktronics Customer Service to receive a free set of replacement air filters. Contact Daktronics
Customer Service if any product quality questions or concerns should arise.
2.1 Support Column Selection
Support column size is dependent on the height and total wind loading of the display and any other
signage attached, such as advertising panels.
Column selection is critical; only a qualified individual should do this.
It is the installer’s responsibility to specify the exact type of column and number of columns used.
Using more columns generally allows smaller columns.
2.2 Lifting the Display
The top of the display (or display sections) will be equipped with eyebolts to lift the unit. Take special
care not to exceed the rated load of the eyebolts. Refer to the information in Appendix B labeled Eye
Bolts to determine the allowable load of the eyebolts shipped with the display.
Figure 24 illustrates both the correct (left example) and the incorrect (right example) method of lifting
a display. Lift the display as shown on the left, with the lifting bar.
Stress on the eyebolts increase as the angle
between the cable and the display top
decreases.
Use every lifting point provided!
Do not attempt to permanently support the
display by the eyebolts.
If mounting this display outside, make sure water or moisture doesn’t get into the display.
Figure 24: Display Lifting
Mechanical Installation 2-1
1. Inspect the top and sides of the display for any holes that may allow moisture to enter the display.
If the eyebolts were removed, plug the holes with bolts and the rubber sealing washer that came
with the eyebolt.
2. Plug and seal the eyebolt holes and any other openings that may allow water to enter the display
with silicone or another waterproof sealant.
CAUTION: Fully attach backsheets to the display cabinet with all of the screws prior to
lifting the display with the eye bolts. The backsheets provide structural support to the cabinet.
Lifting the display with the backsheets removed may cause the cabinet members to twist,
compromising the structural integrity and/or squareness of the display frame. If the display
frame is not square, normal waterproofing measures may prove inadequate, leading to moisture
related problems for the electronics.
2.3 Cabinet Mounting
Reference Drawing:
Mounting Example, 2½
The method used to mount displays can vary greatly from location to location. For this reason, this
manual only addresses general mounting topics. If this display was part of a custom contract, consult
the shop drawing in Appendix A for mounting information.
Before beginning the installation process, verify the following:
• The mounting structure will provide a straight and square frame for mounting the display.
• The mounting structure will not give way at any unsupported points after mounting the display.
Correct any deficiencies before beginning the installation process.
It is the responsibility of the installer to ensure the installation will agree with local codes. The
mounting hardware is also the responsibility of the installer.
The 9 x 1¾ x 1¾ channel used in this display requires supporting the display every eight feet with a
maximum overhang of three feet on each end of the display. The distribution of these supports is to be
symmetrical. This requires a minimum of two supports.
Drawing A-114676 illustrates one of the many ways a small matrix display may be mounted. To
mount a display as seen in the drawing complete the following steps:
1. Remove the four pieces of bar stock from the display. These flat pieces of metal reinforce the
display cabinet at the mounting points.
2. Since bolts or rods will be run on each side of each
column, it will be necessary to drill two holes in both the
bar stock and the cabinet frame at the support points.
Refer to Figure 25.
3. Drill holes in the bar stock and through the cabinet frame.
Run bolts to the angles on the opposite side of the
columns.
4. Secure the display firmly in place.
˝ Small Matrix....................................................Drawing A-114676
Figure 25: Possible Mounting Method
2-2 Mechanical Installation
When mounting the display take note of the following:
• Keep ½-inch clearance below the drain holes in the bottom of the display.
• Do not obstruct airflow to the display fans. Refer to Drawing A-114676.
• Power and signal terminations require access to the inside of the display. Avoid mounting the
display in a manner that hinders access to the display face.
• The Daktronics engineering staff must first approve any modifications to the display ventilation
system.
You must properly seal the eyebolt holes on top of the display cabinet to prevent water from
entering the unit and damaging the electrical components.
Complete the following steps if leaving the eyebolts in the display.
1. Verify the eyebolts are firmly in place. From time to time eyebolts will loosen slightly from
shipping vibration.
2. If the eye bolts need tightening, keep in mind they need only be snug. Over-tightening will crush
the rubber sealing washers, rendering then ineffective.
3. Apply silicone sealant around the base of the eyebolts on top of the cabinet.
Complete the following steps if removing the eyebolts from the display.
1. Remove and discard the eyebolts, but keep the rubber sealing washers.
2. To plug the eyebolt holes, insert half-inch bolts through the rubber sealing washers and into the
eyebolt holes from the top of the display cabinet.
3. Tighten the bolt only as much as is needed to hold the bolt snugly in place. Over-tightening will
crush the rubber sealing washers, rendering then ineffective.
4. On the top of the cabinet, apply silicone sealant around the head of each bolt.
Inspect the entire display for any holes or gaps that may allow
water to enter the display. Use silicone sealant to close any such
openings.
The filters of 1600 series small matrix display are located on the
bottom exterior of the display cabinet. If mounting an
advertising panel or other structure beneath this display, 2.5
inches of clearance must be present in order to remove the
filters. Refer to Figure 26.
The amount of clearance between the display and the ad panel
or structure can also affect display ventilation. Refer to Section
2.5 to calculate the amount of clearance required for adequate
display cooling.
Figure 26: Bottom Clearance
Filter removal is addressed in Section 4.3, Filters.
2.4 Light Detector and Temperature Sensor Installation
Refer to ED9490 in Appendix C for light detector installation and ED9489 in Appendix C for
temperature sensor installation information.
Mechanical Installation 2-3
2.5 Display Ventilation Requirements
Reference Drawings:
Mounting Example, Small Line Displays...............................................Drawing A-101424
Label, Filter Clearance..........................................................................Drawing A-141064
Daktronics small matrix displays use fans to prevent overheating. The fans bring air into the cabinet
from the bottom of the display, creating positive pressure within the display. The fans then force out
the warm air within the display through small gaps above each of the lenses, cooling the lamps and
lowering the internal temperature of the cabinet. This continuous cycle of airflow extends the life of
the lamps and decreases the maintenance costs associated with overheating.
If mounting another sign or structure on top
of one another, maintain a minimum of 2
1
/2O. This is to ensure proper airflow through
the sign and to allow easier access for filter
removal. Refer to Figure 27 and Drawings
A-101424 and A-141064.
In some circumstances it may be necessary,
or desirable, to mount a small matrix display
within another structure or to “skin over” one
or more displays. If enclosing a display in
this nature, adequate openings must exist in
the outer structure for air intake.
If enclosing a small matrix display within
another structure or “skinned over,” observe
the following specifications to prevent
display damage and premature lamp failure:
Figure 27: Minimum Clearance for Sign Bottom
• Provide twelve square inches of unobstructed opening per module for adequate display cooling.
Make allowances to compensate for the percentage of screen in the material covering the openings
in the enclosed structure.
• If forcing air into the enclosed area, it should run at 110 cubic feet per module (one module = 20"
x 40" display active area or eight rows x 16 columns of lamps).
For example, a 16x80 double-face, small matrix display inside an enclosed structure would require
240 square inches, or 1.7 feet, of unobstructed opening in the bottom of the center cabinet.
(2 displays (16x80 pixel size))/128 pixels per module = 20 modules
(2(1280))/128 = 20 modules
2560/128 = 20 modules
20 modules x 12 square inches = 240 square inches or 1.7 square feet
Also, if forcing air into an enclosed display, adhere to the following filter specifications:
• The effective filter area is to be no less than 2.3 square feet per 1.0 square feet of filter face area.
• The filter media is to have an average arrestance (resistance to debris) of 90-92%.
• Initial resistance should not exceed 0.48 w.g. (water gauge) at 500 fpm (feet per meter).
2-4 Mechanical Installation
Submit any plans for filtering air in an enclosed display to the Daktronics engineering staff for
evaluation and approval or the warranty will be null and void.
2.6 Verifying Correct Lens and Module Position
The final steps of mechanical installation involve verifying the proper positioning of all lenses upon
their respective lens/reflector assemblies and that all modules engage fully into the cabinet.
Look down the rows of louvers from either end of the display and secure all lenses properly. Lenses
not secured properly are easily noticeable as the lens removal tab, or the lens itself, will not be in
alignment with the other lenses or lens removal tabs of that row.
Refer to Figure 28 and the following steps to return a lens to its correct position.
1. First, insert the bottom indexing tabs into the slots. There is one indexing tab on each bottom
corner of the lens.
2. While gently pushing the above louver upward, grab the lens tab and push the top of the lens
behind and under the louver offset. Only push the louver upward enough to allow the lens to snap
into position behind the offset.
3. Release the louver and verify the lens aligns with others in the row.
Figure 28: Correct Lens Position
Also, ensure that the rows of louvers are in proper alignment. If any rows seem out of position, this
may indicate the one, or both, sides of the lens/reflector assembly do not engage fully into the cabinet.
If this is the case, a firm push to both sides of the module at the same time should snap the module into
place.
Mechanical Installation 2-5
Section 3: Electrical Installation
Appendix B contains two copies of the Installation Quality Checklist. It covers both mechanical and
electrical installation. This form assists in display installation and assures its dependable operation.
Address each item on the checklist. Following installation, return one copy to Daktronics Customer
Service to receive a free set of replacement air filters. Contact Daktronics Customer Service if any
product quality questions or concerns should arise.
3.1 Common Connectors
This display uses many different types of connectors for power and signal termination. Take special
care when disengaging any connector so as not to damage the connector, the cable or the circuit board.
When pulling a connector plug from a jack, do not pull on the wire or cable; pull on the jack
itself. Pulling on the wires may damage the connector.
The following information presents some common connectors encountered during display
maintenance. These include ribbon cable connectors, Mate-n-Lok connectors, Phoenix-style
connectors, fiber optic connectors, termination panels and termination blocks, and tab connectors.
Some displays do not use all of these connectors.
1. Ribbon Cable Connectors:
Daktronics uses a variety of ribbon cables and
ribbon cable connectors. Figure 29 and Figure 30
show two of the most common ribbon cable
connectors. To disconnect ribbon cable connector
#1, squeeze the metal locking clips inward and
pull the plug out of the jack. To disconnect ribbon
cable connector #2, pull each of the plastic
locking arms outward and remove the plug.
Before replacing a ribbon cable connector, spray
it with DeoxIT
™
contact cleaner to remove any foreign matter that may
Figure 29: Ribbon
Cable Connector 1
cause signal problems. In addition, apply a generous amount of CaiLube
protector paste to the plug before inserting it into the jack. This paste will protect both the plug
and the jack from corrosion. Both the DeoxIT and the CaiLube are in the tool kit accessories
package included with this display. Refer to the replacement parts list in Section 4.15 if additional
supplies of either are needed.
2. Fiber Optic Connectors:
At each end of a fiber optic cable is a “twist-on” connector. To
remove the fiber plug from its jack, push it toward the jack and
twist it counter-clockwise until the plug can pull free. Figure 31
shows a common type of fiber optic connector.
Figure 30: Ribbon
Cable Connector 2
™
Figure 31: Fiber Optic
Connector
Electrical Installation 3-1
3. Termination Panels & Termination Blocks:
Termination panels and termination blocks connect
internal power and signal wires to wires of the same
type coming into the display from an external
source. Most signal wire comes with forked
connectors crimped to the ends of the wire. Power
wires need to have one-half inch of insulation
stripped from the end of the wire prior to
termination. Tighten all screws firmly to ensure a
good electrical connection. Refer to Figure 32.
Figure 32: Termination Panel (Left) and
Termination Block (Right)
4. Phoenix-Style Connectors:
Phoenix-style connectors, which are usually green, terminate signal on
circuit boards. Refer to Figure 33. Strip one-quarter inch of insulation from
the wire prior to termination. To remove a wire, turn the above screw
counter-clockwise to loose the connectors grip on the wire. To insert a
wire, push the bare wire into the connector and turn the above screw
clockwise to lock the wire into place.
5. Mate-n-Lok™ Connectors:
The Mate-n-Lok connectors found in this display are
white and come in a variety of sizes. Figure 34 illustrates a
four-pin Mate-n-Lok connector. To remove the plug from
the jack, squeeze the plastics locking clasps of the side of
the plug and pull it from the jack.
4. Tab Connectors:
The tab connector, illustrated in Figure 35, is in most
Daktronics displays. Grab the connector on the plastic
terminal cover when removing. Do NOT pull it off the tab
Figure 34:
Mate-n-Lok
Connector
by pulling on the wire.
Figure 33:
Phoenix Connector
Figure 35: Tab
Connector
3-2 Electrical Installation
3.2 Display Power Requirements
The following table summarizes the power requirements for the various 1600 series, 2.5-inch small
matrix displays. Power stated is per display face.
Display
Size
8 x 48
8 x 64
8 x 80
8 x 96
16 x 48
16 x 64
16 x 80
16 x 96
24 x 48
24 x 64
24 x 80
24 x 96
120/208 3 Phase
4 Wire Plus Ground
(In Amps)
8
16
16
16
16
24
33
33
24
33
41
49
120/240 Single
Phase
3 Wire Plus Ground
(In Amps)
16
16
24
24
24
33
41
49
41
49
65
73
Total
Watts
2938
3917
4896
5875
5875
7834
9792
11750
8813
11750
14688
17626
3.3 Checking Line Voltage & 24-Hour Voltage Monitoring
Prior to display installation, perform a two-part voltage check. This is a necessary step taken to
maximize lamp life. By looking-up the line voltage on the table in this sub-section, you can calculate
the estimated lamp life and, if necessary, take steps to extend it.
Appendix C has two forms titled “Display Power Report.” This form records three different voltage
readings.
1. Line voltage, addressed in this sub-section.
2. 24-hour monitoring, which also addressed in this sub-section
3. Lamp voltage, checked after the display is powered-up for the first time.
When complete, send one of the “Display Power Report” forms to Daktronics Customer Service. The
other form is for the customer’s records.
To complete the line voltage check, take a line reading of each phase and record the results on each of
the power reports in Appendix A. Then place a voltage monitor on the phase with the highest reading
for 24 hours. Also, write down the maximum and minimum voltages recorded on each of the power
reports.
If lacking the proper equipment to accurately monitor line voltage, consider the following options.
• Have the local power company take the readings.
• Rent the equipment from a local service company.
• Have Daktronics Customer Service recommend the proper equipment.
• Rent the equipment from Daktronics.
Electrical Installation 3-3
If there is any reason to suspect large voltage fluctuations, place a recorder on the line for at least one
phase of the power for one week while the display operates normally. Contact Daktronics Customer
Service with respect to this recording.
Display brightness and lamp life are generally determined assuming an average incoming line voltage
of 120 volts AC at 60 hertz. If the line voltage varies from that value, it will affect both lamp life and
brightness. Lamp life results will also vary with programming style and use of dimming mode.
§ Lamp life predictions are for lamps operating in a laboratory with continuous operation in a stable
temperature and mechanical environment. Actual values will differ from predicted life because of
switched operation, varying temperature, mechanical vibrations due to wind, traffic and sign service
and actual hours of operation. Data is that of the manufacturer.
Lamp Voltage/Lamp Life with 23 VAC Secondary (T-1109 XFMR)
120 V Only 5 V Buck 5 V Boost
Line
Volts
18.90 19.72 3.42 35022 18.90 2.95 59271 20.60 3.98 20250
108 20.10 3.66 27530 19.27 3.16 46578 21.00 4.26 15923
110 20.48 3.91 21740 19.64 3.37 36770 21.40 4.55 12577
112 20.87 4.17 17242 20.01 3.60 29155 21.80 4.86 9978
113 21.06 4.30 15380 20.19 3.71 16003 22.00 5.01 8902
114 21.25 4.44 13733 20.38 3.83 23215 22.20 5.18 7950
115 21.44 4.58 12275 20.56 3.96 20748 22.40 5.34 7107
116 21.63 4.73 10983 20.74 4.08 18561 22.60 5.51 6359
117 21.83 4.88 9836 20.93 4.21 16621 22.80 5.68 5696
118 22.02 5.03 8818 21.11 4.34 14899 23.00 5.86 5107
119 22.21 5.18 7912 21.30 4.48 13367 23.20 6.04 4583
120 22.40 5.34 7107 21.48 4.61 12004 23.40 6.22 4117
121 22.59 5.50 6389 21.66 4.75 10790 23.60 6.41 3701
122 22.78 5.67 5748 21.85 4.89 9708 23.80 6.60 3331
123 22.98 5.84 5177 22.03 5.04 8742 24.00 6.80 3000
124 23.17 6.01 4666 22.22 5.19 7878 24.20 7.00 2704
125 23.36 6.18 4210 22.40 5.34 7107 24.40 7.20 2440
126 23.55 6.36 3801 22.58 5.50 6416 24.60 7.41 2203
127 23.74 6.55 3435 22.77 5.65 5797 24.80 7.63 1991
128 23.93 6.73 3106 22.95 5.82 5242 25.00 7.84 1801
129 24.13 6.92 2811 23.14 5.98 4744 25.20 8.07 1630
130 24.32 7.12 2547 23.32 6.15 4297 25.40 8.29 1477
Lamp
Volts
Candle
Power
Lamp
Life
Hours
Lamp
Volts
Candle
Power
Lamp
Life
Hours
Lamp
Volts
Candle
Power
Lamp
Life
Hours
If the line voltage is near or above 125 volts or a longer lamp life is desired, contact Daktronics for
transformer adjustment.
Contact a local electrician or the local power company if line voltage is substantially above or below
normal.
3-4 Electrical Installation
3.4 Preparing the Display for Power & Signal Connection
Reference Drawings:
Shop Drawing, 7 or 8 High, 2 ½
Shop Drawing, 16 High, 2 ½
Shop Drawing, 24 High, 2 ½
When connecting power and signal to this display it is necessary to access the following items.
• Power termination panel.
• Display controller (Venus 1500 controller or serial line interface)
• Fan control enclosure – Venus 1500, 2V cabinet configurations only.
The shop drawings illustrate the locations of the above-listed items at the end of this section.
However, only one of the drawings is appropriate for this display. Use the following table to choose
the correct shop drawing.
If the display being installed is… Consult shop drawing…
7 or 8 high display (all lengths) Drawing A-114666
16 high display (all lengths) Drawing A-114667
24 high display (all lengths) Drawing A-114668
After locating the power termination panel and display controller on the shop drawing, complete the
following steps to ready the display for power and signal hook-up.
1. Remove the necessary lens/reflector assemblies to gain access to the termination panel and display
controller. Lens/reflector removal is addressed in Lens/Reflector Assemblies in Section 4.3.
Venus 1500 systems need only access the fan control enclosure if installing two displays together
in a 2V cabinet configuration. Venus 4600 systems do not need access to the fan control enclosure
regardless of cabinet configuration.
2. Remove the covers from the power termination panel, the display controller and, if needed, the fan
control enclosure.
Daktronics completes all internal power and signal wire routing and connecting prior to shipment.
˝..........................................................Drawing A-114666
˝................................................................Drawing A-114667
˝................................................................Drawing A-114668
3.5 Bringing Power to the Display
Reference Drawing:
Assy, Term Panel................................................................................ Drawing A-113974
Only qualified individuals should perform power routing and termination to the display. It is
the responsibility of the installer to ensure the installation will adequately meet local codes and
standards.
! Run power from the power distribution point to the termination panel of each display face.
! Run power separately to each display face.
! This power is run through conduit according to national and local electrical codes.
! Use the knockouts in the back sheet located near the termination panel for the conduit entrance
point. This area is marked with a label (“Recommended Pwr & Sig Entrance Location”).
! Power cannot route through the display. Do not use the support conduit, located inside the
display, for power routing.
Electrical Installation 3-5
The following subsections address the routing of incoming power through a power disconnect switch
and the termination of incoming power at the display’s power termination panel. Daktronics completes
all power routing and connection within the display past the power termination panel prior to
shipment.
When terminating the incoming power to the term panel, balance the individual power phases as
evenly as possible. Current draw per line, as noted on the sales literature or schematic, is the high leg
current draw.
For a 2V display, bring power into both faces. The termination panel for the echo face is located in the
right end of the display. Connect power as stated above.
Power Disconnect Switch
Route power to the display through a fused disconnect switch capable of opening all ungrounded
power conductors. Locate this disconnect within the line of sight of any personnel performing
maintenance on the display. If locating the disconnect out of sight of the display, it must be able to
lock in the open position.
Due to the inrush current (momentary surge) created by the display on start-up, Daktronics
recommends using oversized current devices, high magnetic breakers or time delay fuses to
handle the momentary surge.
The Over Current Protection Device needs to match the fault current available in the power
delivery circuit. To determine the available fault current of circuit, have qualified personnel
perform an onsite fault current survey at the site.
The National Electrical Code requires the Amp Inrush Current (AIC) rating of the electrical
equipment in a circuit match the available fault current in the electrical circuit.
Because each installation is unique, Daktronics offers these instructions as guidelines only.
Daktronics assumes no liability if installation steps have been omitted or other necessary
procedures are not included in this manual.
Daktronics is not responsible for the quality of the power delivery system to the display. It is the
customer’s responsibility to ensure the undertaking of proper safety measures. Power and
signal wiring in the display must comply with local, state and national electrical codes, with the
correct cabling procedures for the installation determined and followed.
Power Termination at the Display
Incoming power connects to the power termination panel located within the left end of display.
Drawing A-113974 shows an example of a power termination layout. The appearance of other
termination panels will vary by sign size.
Complete the following steps to connect power to the termination panel.
1. Pull the power cable from the conduit to the termination panel.
2. Connect the white neutral wire (or wires) to the position labeled NEUT on TB41.
3. If terminating 120/240 single-phase power, connect the hot wires to the positions labeled L1
and L2 on TB41. If terminating 120/208 three-phase power, connect the hot wires to L1, L2
and L3 on TB41.
4. Apply a silicone sealant around the conduit where it meets the cabinet to prevent
water/moisture from entering the display.
3-6 Electrical Installation
5. Refer to the following section, Section 3.5, for important information regarding display
grounding.
Grounding
Displays MUST be grounded according to the provisions outlined in Article 250 of the
National Electrical Code
Verification of ground resistance can be performed by the electrical contractor who is performing
the electrical installation. This service can also be performed by Scoreboard Sales and Service
personnel
The display system must be connected to earth-ground. Proper grounding is necessary for reliable
equipment operation. It also protects the equipment from damaging electrical disturbances and
lightning. The display must be properly grounded or the warranty will be void.
The material of an earth-ground electrode differs from region to region and from conditions
present at the site. Consult the National Electrical Code and any local electrical codes that
may apply. The support structure of the display cannot be used as an earth-ground electrode.
The support is generally embedded in concrete, and if in earth, the steel is either primed or it
corrodes, making it a poor ground.
®
. Daktronics recommends a resistance to ground of 10 ohms or less.
Power Installation
There are two considerations for power installation; installation with ground and neutral
conductors provided and installation with only a neutral conductor provided. These two power
installations differ slightly, as described in the following paragraphs:
Installation with Ground and Neutral Conductors Provided
For this type of installation, the power cable must contain an isolated earth-ground conductor.
Under this circumstance, do not connect neutral to ground at the disconnect or at the display.
This would violate electrical codes and void the warranty. Use a disconnect so that all hot
lines and neutral can be disconnected. Refer to Figure 36 for installation details. The National
Electrical Code requires the use of a lockable power disconnect within sight of or at the
display.
Electrical Installation 3-7
Figure 36: Installation with Ground and Neutral Conductor Provided
Installation with Only a Neutral Conductor Provided
Installations where no grounding conductor is provided must comply with article 250-32 of
the National Electrical Code. If the installation in question meets all of the requirements of
article 250-32, the following guidelines must be observed:
• Connect the grounding electrode cable at the local disconnect, never at the display power
termination panel.
• A disconnect that opens all of the ungrounded phase conductors should be used.
• The neutral and the ground conductors should be bonded in the display power termination
panel.
Refer to Figure 37 for installation details.
Figure 37: Installation with only Neutral Conductor provided
3.6 Bringing Signal to the Display
Reference Drawings:
V1500 Signal Termination .....................................................................Drawing A-103727
Serial Line IF Signal Terms...................................................................Drawing A-103740
3-8 Electrical Installation
Loading...