Daktronics GALAXY GT6 Series User manual

201 Daktronics Drive
Brookings, SD 57006-5128
www.daktronics.com/support
800.325.8766
GALAXY®GT6 DISPLAY SERIES
INSTALLATION AND
OPERATION MANUAL
P2056
DD3894917
Rev 03
20 March 2020

Copyright © 2020
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
Limitation of Liability ..................................1
Contact Information .................................1
Model Number Guide...............................1
2 Installation Preparation ����������������������2
Pre-Installation Checklist ...........................2
Structure Requirements.............................2
Electrical Requirements ............................2
Main Disconnect�������������������������������������2
3 Display Installation������������������������������3
Display Installation Preparation................3
Display Installation .....................................3
4 Electrical Installation ��������������������������4
Electrical Installation Preparation ............4
Conduit.......................................................4
Overview of Power/Signal Connection ..4
Power Requirements .................................5
Important Notes About Power���������������5
Main Disconnect�������������������������������������5
Earth Ground Installation ..........................6
Important Points About Grounding�������6
Power Connection ....................................6
Displays With an External Power
Termination J-box�����������������������������������6
Displays With Internal Power
Termination����������������������������������������������7
5 Signal Cable Installation ��������������������8
Primary/Mirror Display Interconnections .8
6 Network and Communication
Installation �������������������������������������������9
System Startup ...........................................9
Boot Sequence ���������������������������������������9
Start-Up Checklist�����������������������������������9
Communication Installation.....................9
Network Connection����������������������������10
Computer Connection�������������������������10
Static IP Address Setting ����������������������10
Standard Communication Options.......10
7 VenusSoftwareConguration���������11
First-Time Venus Login..............................11
Log In - Local Server�����������������������������11
Log In - Hosted Server��������������������������11
Venus Menu Overview............................12
Venus System Setup ................................12
Add Displays to Venus �������������������������12
Contact Info and Where to Get Help...13
Telephone ���������������������������������������������13
Online ����������������������������������������������������13
8 Display Maintenance�����������������������14
Module Removal .....................................14
Internal Display Access ...........................14
Ventilation System ...................................15
Fans��������������������������������������������������������15
Display Face Cleaning............................15
Wet Cleaning Process ��������������������������15
Dry Cleaning Process���������������������������16
9 Display Troubleshooting�������������������17
Module Removal .....................................17
Power and Signal Routing ......................17
Power Routing ���������������������������������������17
Signal Routing ���������������������������������������18
Controller Diagnostics .............................19
PLR Diagnostics .......................................19
PLR Self-Test�������������������������������������������19
Module Diagnostics.................................20
Module Self-Test �����������������������������������20
10 Replacement Parts List ���������������������21
11 Replacing Parts���������������������������������22
Module Removal .....................................22
Module Replacement.............................22
Power Supply Replacement ..................22
Controller Replacement.........................23
12 Daktronics Exchange and Repair &
Return Programs��������������������������������24
Exchange Program .................................24
Before Contacting Daktronics�������������24
Repair & Return Program........................25
Shipping Address����������������������������������25
Daktronics Warranty and Limitation of
Liability ......................................................25
A Reference Drawings �������������������������27
B Daktronics Warranty and Limitation
of Liability�������������������������������������������29

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Introduction
1
1 Introduction
This manual provides the necessary information to install and service a Galaxy®GT6 series
display.
Please read and understand all steps in this manual before beginning the installation
process.
For a smooth installation, complete the steps in this manual in order. Contact Daktronics
Technical Support with any questions before or during the installation process.
Limitation of Liability
The factory warranty will be nullied if:
• The display is not installed according to the steps in this manual
• Proper electrical service is not provided or the display is not grounded properly
• Unauthorized modications are made to the display, display cabinet, or the control
system
Refer to Section B: Daktronics Warranty and Limitation of Liability (p�29) at the end of
this manual for a link to the full Daktronics Warranty and Limitation of Liability.
Contact Information
For assistance before, during, or after display installation, please contact Daktronics
Technical Support: 800-325-8766.
Model Number Guide
Galaxy® GT6 model numbers are dened as follows:
GT6-RxC-M-RGB-F
GT6 = Outdoor Standard Galaxy®display
R= Number of pixel rows high
C= Number of pixel columns long
M= Pixel pitch in millimeters
RGB =LED Color: R (Red), G (Green), B (blue)
F=Face setup: SF – Single Face or 2V – Primary/Mirror
Displays are either single face (SF) or two view (2V). In 2V units, the rst display is referred
to as the primary and the second is called the mirror. If the second display is mounted
more than 8 feet (2.4 m) from the primary display, two primary displays are used.

Installation Preparation
2
2 Installation Preparation
This section explains what to consider before installing a Daktronics Galaxy®GT6 display.
Follow all guidelines and safety precautions in this manual when installing the display. Do
not modify the display or control system in any manner without the written permission of
Daktronics engineering staff.
Any unauthorized modications nullify the display warranty.
Pre-Installation Checklist
• The display was not damaged during shipping
• The mounting structure will provide a straight and square mounting frame for the
display
• The support structure can carry the weight of the display and meets local and
national codes
• Ensure proper power is available at sign structure – refer to shop drawing for display
power requirements
• The display cabinet has no holes (accidental or intentional) that will allow water to
enter the display
• All display modules are fully latched into the display cabinet
Structure Requirements
Support structure design depends on mounting method, installation height, display size,
and weight. Because every installation site is unique, Daktronics approves no single
procedure for mounting displays.
Things to consider prior to installation:
• Display structure and mounting must not obstruct airow - refer to shop drawing for
ventilation space requirements
• Light sensor must not be obstructed for the display to function properly
For additional questions about display mounting requirements and specications, refer to
the display shop drawing or contact Daktronics Technical Support at 800-325-8766.
Electrical Requirements
Size circuits according to local and national codes so the power distribution system
delivers full-load power to the display while maintaining a voltage within 5 percent of the
nominal voltage.
Main Disconnect
Note: Daktronics requires installation of a power disconnect switch with the display
so all ungrounded conductors can be disconnected near the point of power
connection.

Display Installation
3
3 Display Installation
This section explains the steps necessary for proper lifting and installation of the display to
the sign structure.
Follow all guidelines and safety precautions in this manual when installing the display.
Do not modify the display or control system in any manner without the written permission
of Daktronics engineering staff. Any unauthorized modications will nullify the warranty.
Display Installation Preparation
• Do inspect the display for damage prior to installation
• Do use all clip angle locations for mounting
• Do provide an adequate support structure that is straight and level
• Do provide adequate ventilation that meets or exceeds display specications listed
on the shop drawing
• Do use all lift eyes when lifting the display
• Do not open the DMP enclosure
• Do not drill holes into the display unless noted
• Do not block display ventilation system
• Do not use the lift eyes for display mounting
Display Installation
1� Carefully remove shipping crate.
2� Attach a crane or lift truck to the lift eyes on
the display’s top.
Note: Use a spreader beam to ensure proper
vertical lift that will not damage the
cabinet. Refer to Figure 1.
3� Lift the display off the truck to the display
structure.
Note: Do not lift displays in wind speeds
greater than 20 mph.
4� Mount the display to the structure by welding or
bolting all clip angle locations to horizontal stringers.
Note: Use all clip angles when mounting the display.
Refer to Figure 2.
5� Remove crane support and tag lines from the display
once mounting is complete.
Use Lift Bar and ALL Lift Eyes
Figure 1: Proper Display Lifting
Figure 2: Clip Angle on Stringer

Electrical Installation
4
4 Electrical Installation
This section explains the steps necessary to make nal electrical connections to the
display from the primary power source. For display-specic power requirements, refer to
the shop drawing or label on the back of the display.
Electrical Installation Preparation
• Do follow all installation guidelines
• Do route power to the display through a disconnect switch
• Do provide the required power per display requirements
• Do provide a separate circuit for each display
Note: Run a separate circuit to the electronic display(s) to isolate it and prevent
any issues that could be caused by line voltage uctuations or high
frequency noise on the power line caused by other types of equipment.
A separate circuit also makes display maintenance and troubleshooting
easier. Daktronics assumes no liability for any issues caused by line voltage
uctuations or other improper power conditions.
• Do connect each display face to a dedicated earth-ground electrode
• Do follow all local and national electrical codes
• Do not share circuits between displays and other electrical devices
• Do not connect the display to any voltage other than that listed on the product label
• Do not connect the neutral to the ground at the disconnect or the display
• Do not use the display support structure as an earth-ground per local and national
codes
Conduit
Daktronics does not provide conduit. Separate conduit must be used to route:
• Power
• Signal IN wires to the signal termination enclosure (when applicable).
• Signal OUT wires (if not using the provided interconnect cable).
For power, displays have either a J-box or a 3/4" conduit access hole located near
the lower right on the back of the display. For signal, displays have signal input quick
connects or etched drilling guides for conduit.
Overview of Power/Signal Connection
Power to the display is terminated externally in most cases. Power Connection (p�6)
shows external wiring examples.
Possible methods for signal termination are shown in the various communication
manuals.
1� Power is routed to the display through a fused disconnect switch capable of opening
all ungrounded power conductors. Install the disconnect within the line of sight of
any personnel performing maintenance on the display, unless it can be locked in the
open position.

Electrical Installation
5
2� Route power conductors from the disconnect to the display through conduit
following local code specications.
3� Terminate display power either to the J-box or internally at the power termination
panel.
4� Connect the grounding conductor to the grounding lug on the back of the display.
5� Route signal cable to the signal termination enclosure. Ground the enclosure to an
isolated earth-ground connector (when required).
6� Route signal into the enclosure through conduit. The knockouts on the enclosure
require the use of 3/4" conduit.
7� Route signal quick-connect cables from the enclosure to the display either through
conduit or through the display pole if power is not also routed in the display pole.
Note: Quick-connect cables MUST be secured to protect them from weather or
vandalism.
Power Requirements
• Install this display according to all applicable local and national electrical codes. This
includes proper grounding and bonding of the display.
• Do not connect the display to any voltage other than that listed on the Daktronics
product label.
• Displays use single-phase power. Proper power installation is imperative for display
operation. Find power specications on drawings shipped with the display.
Important Notes About Power
• Run a separate circuit to the electronic display(s) to isolate it and prevent any
issues that could be caused by line voltage uctuations or high frequency noise on
the power line caused by other types of equipment. A separate circuit also makes
display maintenance and troubleshooting easier. Daktronics assumes no liability for
any issues caused by line voltage uctuations or other improper power conditions if
these recommendations are not followed.
• Size conductors of circuits that deliver power to the display according to national
and local electrical codes so the power distribution system delivers full-load power to
the display while maintaining a voltage within 5 percent of the utility nominal voltage.
Main Disconnect
Daktronics requires using a power disconnect switch with the display. A disconnect allows
all ungrounded conductors to be disconnected near the point of power connection.
Locate the disconnecting means either in a direct line of sight from the display or so it
can be locked in the open position. This ensures that power is not reconnected while
service personnel work on the display.

Electrical Installation
6
Earth Ground Installation
Follow the steps below to connect the
Daktronics Galaxy®GT6 display to an
earth-ground electrode.
Note: Each display face requires an
earth-ground electrode.
1� Install an earth-ground electrode
(ground rod, ground plate, etc.)
near the base of the display. Refer to
Figure 3 for guidelines.
2� Connect a copper wire from the
grounding electrode to the ground lug
on the back of the display.
3� Bury any copper cable or grounding electrodes so they are below grade.
Important Points About 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 Connection
Power is most often terminated to the J-box on displays. However, larger displays require
power to be terminated internally in the Power Termination Panel.
Displays With an External Power Termination J-box
To terminate hot, neutral, and ground wires at the J-box, complete the following steps:
1� Route the power cable through conduit to the rear of the display and into the power
termination J-box (the J-box contains 3/4" threaded conduit tting(s).
The J-box contains two or three wires plus a ground coming from the interior of the
display. These wires are pre-terminated to the power termination panel inside the
display.
Primary
Mirror
Display
Ground Lug
Thermal Weld
Connection
Preferred Conduit
Copper Ground Conductor
(One Per Display Face)
Copper Ground Rods
8 ft.(2.5 m)
min.
8 ft.(2.5 m)
min.
Figure 3: Proper Display Grounding

Electrical Installation
7
2� Inside the J-box, connect the power wires to the wires coming from the display
interior using wire nuts. Refer to Figure 4 for 120
VAC and Figure 5 for 120/240 VAC.
The following colors are used for the pre-
terminated wires:
120 VAC 120/240 VAC
Line 1 – Brown
Line 1 – Brown
Line 2 – Brown
Neutral – Blue Neutral – Blue
Ground – Green/Yellow Ground – Green/Yellow
Displays With Internal Power
Termination
To terminate single-phase power to the internal
power termination panel, complete the following
steps:
1� Open the display as explained in Section 6:
Network and Communication Installation
(p�9) and locate the power termination
panel.
2� Route the cable through conduit to the
back of the display. Use the 3/4" knockout for
access, being careful not to damage internal
components.
3� Connect the neutral wire to the
neutral lug and the live wires to
the Line 1 and Line 2 lugs.
4� The ground wire connects to
the grounding bus bar. Refer to
Figure 6 for an example.
120 V Termination
(Box with Cover Removed)
Wiring from power termination
panel inside display
Line 1 – Brown
Neutral – Blue
Ground – Green/Yellow
Figure 4: 120 V J-box Termination
120/240 VAC Termination
(Box with Cover Removed)
Wiring from power termination
panel inside display
Line 1 – Brown
Line 2 – Brown
Neutral – Blue
Ground –
Green/Yellow
Figure 5: 120/240 V J-box Termination
CB1
15
CB2
15
CB3
15
CB4
15
Z1 Top
Z2 Bottom
LINE
LOAD
Z3 Top
Z4 Bottom
LINE
LOAD
Four Breaker Connections
• White Neutral Wiring
(Z1 Load to Pin 1 of J41)
• White Neutral Wiring
(Z2 Load to Pin 1 of J42)
• White Neutral Wiring
(Z3 Load to Pin 1 of J43)
• White Neutral Wiring
(Z4 Load to Pin 1 of J44)
Green Ground Wiring
(Ground Bar to Pin 3 of J41)
(Ground Bar to Pin 3 of J42)
(Ground Bar to Pin 3 of J43)
(Ground Bar to Pin 3 of J44)
• Black Line Wiring
(Z1 Load to Pin 2 of J41)
• Black Line Wiring
(Z2 Load to Pin 2 of J42)
• Black Line Wiring
(Z3 Load to Pin 2 of J43)
• Black Line Wiring
(Z4 Load to Pin 2 of J44)
Mount Z1 On Top of Z2
and Z3 On Top of Z4
White Neutral Wiring
(Terminal Neutral Block
to Z1, Z2, Z3, and Z4 Line)
Black Line Wiring
(CB1 to Z1 Line
and CB2 to Z2 Line)
Black Line Wiring
(CB3 to Z3 Line
and CB4 to Z4 Line)
LINE 2
NEUT.
LINE 1
Strain Relief
Figure 6: Single-phase Four Breaker Domestic Panel

Signal Cable Installation
8
5 Signal Cable Installation
Primary/Mirror Display Interconnections
For data to get from the Primary display to the Mirror
display, the interconnect cable must be connected.
This cable typically comes attached to the back of the
display.
1� Locate cable, unpackage it, and remove protective
caps from cables.
2� If this display is a two-sided primary/mirror display,
quick-connect cables are provided to connect the
signal between the two faces. Refer to options 1 and
2 below for your specic application.
Option 1: Connect a cable from the Signal Out jack
on primary face to Signal In jack on mirror face.
Connect a second cable from the Signal Out jack
on the mirror face to the Signal In jack on the primary
face.
Option 2: Install the ber quick-connect cable
between Primary and Mirror display faces when
applicable.
3� Coil up any excess cable and secure it to prevent
vandalism and weather-related damage.
Note: Anchor points are found on each fan hood to
secure excess cable.
Figure 7: Signal Out Jack
Figure 8: Signal In and Out Jacks

Network and Communication Installation
9
6 Network and Communication Installation
This section explains how to setup communications with a GT6 series display through a
network or an individual computer. Obtain information about the available standard
communication options in the provided quick guides and reference manuals.
System Startup
The display shows a boot sequence shortly after the power is turned on. The information
in this sequence is very useful when using Venus® Control Software to congure the
display. Ensure all display communications and network connections are made before
turning the display on.
Boot Sequence
The information in the boot sequence includes the following:
• Firmware name and version
• Display size (pixels high by pixels wide)
• Dynamic Host Conguration Protocol (DHCP)-assigned name
• IP address and state
• Media access control (MAC) address
• Conguration port
• Status port
• Management port to access conguration
• Description
Start-Up Checklist
• Conrm power is correctly connected to the display
• Conrm there is sufcient power according to display requirements
• Conrm a main disconnect is installed
• Conrm the display is grounded per local and national codes
• Conrm that all communication equipment is installed according to provided
documentation
• Conrm that any necessary network connections have been made
• Inspect peripheral equipment (temperature sensor, light sensor, etc.) for proper
installation
Communication Installation
This section explains the network settings of displays and gives guidance for integrating
a display with a customer’s network. It also provides basic information about available
standard communication options.
Daktronics is not responsible for setting up displays on a wide area network (WAN) but
does assist with setting up communication on a local area network (LAN) or directly to a
laptop.
Keep the following points in mind when installing network and communication:

Network and Communication Installation
10
• Do not turn on the display until all network and communication installation is
complete.
• Have a laptop with internet access on-site.
• Work with a customer’s IT professional for network integration (preferred).
Network Connection
GT6 displays use Dynamic Host Conguration Protocol (DHCP) by default, allowing the
customer’s network to congure the display and eliminating manual conguration of the
player.
When the display is connected to a network that supports DHCP, a default DHCP
name similar to “DAKTXXXXXX,” “XXXXXX” representing the last six digits of the player’s
media access control (MAC) address, is used. This information displays during the boot
sequence.
Ports 4500-4525 must be open for communication on the switcher or router.
Computer Connection
When connecting the display directly to a computer, and Dynamic Host Conguration
Protocol (DHCP) is not available, the display’s AutoIP feature assigns an IP address.
AutoIP addresses fall into the range of 169.254.0.0 to 169.254.255.255. The IP address
displays during the boot sequence when the display rst turns on.
Static IP Address Setting
Setting a static IP address on a display requires the following:
• Laptop with Java®, Silverlight®, DisplayFind, and Internet Explorer®applications
installed
• Display IP address (provided by customer)
• Ethernet patch cable to connect the computer to the display
Work with Daktronics Technical Support when programming a static IP address on the
player.
Standard Communication Options
For specic details on installing the communications, consult the quick guide and manual
included with the communication equipment. Each type of communication is listed
below with its manual number.
Communication Type Communication Manual Communication Quick Guide
Cellular Modem DD3414211
DD3486291
Wireless Ethernet Bridge DD1685027 DD1417586
Wire Ethernet DD1417609 DD1417573
Fiber Ethernet DD1417611 DD1417581
These are the standard communication types but each site is unique and may include
additional equipment. If problems arise, contact the display’s service company or
Daktronics Customer Service.

VenusSoftwareConguration
11
7 VenusSoftwareConguration
Other control software is available on a contract basis. Refer to that product’s help le
for system requirements, installation, and conguration information.
First-Time Venus Login
Before rst-time login, ensure that the Venus computer uses either the Chrome®browser
or Internet Explorer® version 11 (or later) browser. Also, review the Venus computer’s
properties and take note of the computer name.
Log In - Local Server
1� Navigate to https://ComputerName:44300 (entering
the actual computer name for ComputerName).
2� Enter the user name and password into the Email and
Password text boxes. Refer to Figure 9.
3� Change the password in the Update Password text
boxes.
4� Update the account information in the User
Information and Additional Information sections. Refer
to Figure 10.
Log In - Hosted Server
1� Navigate to https://venus.daktronics.com.
2� Enter the user name and password provided by
Daktronics into the Email and Password text boxes.
Refer to Figure 9.
3� Change the password in the Update Password text
boxes.
4� Update the account information in the User
Information and Additional Information sections and
click Save. Refer to Figure 10.
Figure 9: Venus System Login
Figure 10: Update Information
Prompt

VenusSoftwareConguration
12
Venus Menu Overview
After logging in to Venus, an initial screen shows the No dashboard information available
message. Clicking the Menu button at the top-left corner
of the screen opens the main Menu. Refer to Figure 11.
Menu Item Description
Dashboard
Shows status tiles for each display and any
active, online, associated devices such as VIP-
5X60s, DMP-8000s, and DMP-5000s
Media
Opens the Media Library where content
media les are uploaded, created through the
Content Studio application, tagged, stored,
and assigned to an account
Playlists Creates a playlist of content media les to play
in a specied order on a selected display
Reports Produces proof-of-play and scheduled content
reports for displays at specied dates and times
Data Loads installed data packages
Scripts Opens the Script Library where display
commands are created and stored
Accounts Creates new accounts for advertisers
Users Lists current user proles and allows users to
update passwords or add new users
Displays
Lists all available displays and provides basic
management tools including Devices for linking
DMP-8000s, DMP-5000s, and VIP-5X60s to a
specic display
Venus System Setup
Add Displays to Venus
1� Click Menu on the top-left side of the initial
dashboard screen. Refer to Figure 12.
2� Click Displays at the bottom of the Menu. The
No displays were found message opens.
3� Click Add New at the top-left side of the
window. The Add Display window opens. Refer
to Figure 12.
4� Enter the display name into the Title text box.
5� Select the correct time zone for the display
from the Display Time Zone drop-down menu.
6� Enter a description of the display in the Description text box.
7� Enter the size of the display in the Width and Height text boxes.
Figure 11: Venus Menu
Figure 12: Adding a Display

VenusSoftwareConguration
13
8� Click Save.
9� Repeat Steps 3-8 for each display.
Contact Info and Where to Get Help
If further assistance is required, Daktronics
Customer Service is available 24/7 via phone or
online connection.
Contact information and Venus account
information is available at the top-right corner
under the user name. Refer to Figure 13. Select
the About tab under the user name to open the
contact information window. Refer to Figure 14.
Telephone
U.S. and Canada: 1-800-DAKTRON (1-800-325-
8766)
Outside the U.S. and Canada: [phone]
Online
http://www.daktronics.com
Support
Information
Figure 13: Account Information
Figure 14: Contact Information

Display Maintenance
14
8 Display Maintenance
This section explains the steps necessary to maintain Galaxy®GT6 displays, which are
front accessible only. Remove modules on the front of the display to gain access to
internal components. Figure 15 and Figure 19 show internal component locations.
• Remove power from display before doing any repair or maintenance work.
• Only displays four modules high and higher have fans in both the top and bottom.
Module Removal
• Turn the 1/8" hex head wrench clockwise to remove modules from the display face�
• Turn the 1/8" hex head wrench counter-clockwise to secure modules to the display
face�
Internal Display Access
1� Disconnect power to the display.
2� Remove the bottom two modules from the second
column on the left side of the display with a 1/8"
hex head wrench. A component layout is shown in
Figure 15.
3� Locate the latch fastener on the module near the
top-right side. Refer to Figure 16. Turn the wrench a
quarter turn clockwise.
4� Gently tip the top of the module outward slightly. Then
lift the module upward to disengage the tabs at the
bottom of the module from the slots on the display’s
face sheet.
Input
Quick
Connect
Light
Detector
J-Box
DMP
Term
Panel
Controller
Power
Supply
Thermostat
RJ45
Quick
Connect
Fans
Power Supplies
Figure 15: Component Locations
Figure 16: Module Front

Display Maintenance
15
5� Disconnect the SATA cables and unplug the power cable by squeezing the tabs on
the sides of the plug head and pulling it out. Refer to
Figure 17.
6� Reconnect the SATA and power cables to the
module.
7� Push the cables into the display so they do not get
pinched.
8� Place modules back into their proper locations by
inserting the tabs at the bottom of the modules in
the corresponding slots on the display face sheet.
Refer to Figure 18. Tip the top of the module back into
place and latch it by turning the hex head wrench a
quarter-turn counter-clockwise.
Note: A fully seated module should be ush with the
modules around it.
Ventilation System
Galaxy®GT6 displays are equipped with a ventilation
system that helps keep internal components at operable
temperatures. Galaxy®GT6 displays are front ventilated,
so the display support structure must allow adequate
space or air movement for proper ventilation. Refer to the
display shop drawing for ventilation requirements.
Fans
Fans help bring fresh air into the display while exhausting
hot air through the upper vents. Fans are controlled via
a thermostat in the display cabinet. The thermostat is
equipped with a bypass button for testing fan operation.
Replace fans that are not working properly.
Display Face Cleaning
Wet Cleaning Process
1� Turn off power to the display.
2� Mix a mild, non-abrasive, non-petroleum-based detergent and cold water, one
ounce of detergent to one gallon of cold water.
3� Saturate a light/medium duty cleaning brush with the soapy water.
4� Use horizontal brush strokes to loosen and remove dirt and grime, washing the display
from top to bottom. Use light pressure so as not to damage the LEDs. Clean only an
area that is safely within reach from a lift or stage, and then move on to the next
section of modules.
5� Rinse the display face with generous amounts of cold water under low pressure. A
spot-free rinse agent can be used to reduce water spots.
6� Use a soft, dry terry cloth to dry and remove excess water. Take care not to damage
LEDs by catching the cloth on them.
Figure 17: Module Back
Module
Tab
Figure 18: Tab on Back of
Module

Display Maintenance
16
Dry Cleaning Process
1� Turn off power to the display.
2� Rub a dry, soft terry cloth towel horizontally across each row of LEDs. Make four
passes per row of LEDs before moving to the next row of LEDs. Work from top to
bottom safely within reach from a lift or a stage. Take care not to damage LEDs or
the plastic louvers by catching the cloth on them.