Daktronics DB-66 Series User manual

201 Daktronics Drive
Brookings, SD 57006-5128
www.daktronics.com/support
800.325.8766
DB-66XX SERIES DIGITAL
BILLBOARD
SERVICE MANUAL
P2283
DD4816468
Rev 02
04 May 2021

Copyright © 2021
All rights reserved. While every precaution has been taken in the preparation of this manual, the publisher assumes no
responsibility for errors or omissions. No part of this book covered by the copyrights hereon may be reproduced or copied
in any form or by any means—graphic, electronic, or mechanical, including photocopying, taping, or information
storage and retrieval systems—without written permission of the publisher.
Daktronics trademarks are property of Daktronics, Inc. All other trademarks are property of their respective companies.
FCC Statement
Supplier Declaration of Conformity (SDoC)
This product complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions: (1)
This device may not cause harmful interference, and
(2) this device must accept any interference received,
including interference that may cause undesired
operation.
Note: This equipment has been tested and found to
comply with the limits for a Class A digital device,
pursuant to part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against
harmful interference when the equipment is operated
in a commercial environment. This equipment
generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance
with the instruction manual, may cause harmful
interference to radio communications. Operation of
this equipment in a residential area is likely to cause
harmful interference in which case the user will be
required to correct the interference at their own
expense.
Warning: The user is cautioned that changes and
modications made to the equipment without the
approval of manufacturer could void the user’s
authority to operate this equipment.
Industry Canada Regulatory Information
This Class A digital apparatus complies with Canadian
ICES-003.
Cet appareil numérique de la classe A est conforme à
la norme NMB-003 du Canada.
Inquiries
Contact Daktronics with any questions regarding our
product compliance.
Mail:
Daktronics
201 Daktronics Dr.
Brookings, SD 57006 USA
Phone:
800-325-8766
Website:
www.daktronics.com

– i –
Table of Contents
1 Introduction�����������������������������������������1
Important Contact Information ...............1
Display Identication.................................1
Terms Used in this Manual.........................1
Spare Parts..................................................2
Locate the Spare Parts Rack....................2
Open and Remove the Spare Parts
Rack���������������������������������������������������������2
Remove A Module From The Spare
Parts Rack������������������������������������������������3
Field Replaceable Units ............................3
2 Display and Control Overview ����������5
Display Control System Flow Overview ...5
Display Power Overview ...........................5
Display Signal Overview............................5
3 Display Troubleshooting���������������������6
Remotely Cycle Power .............................6
Display Troubleshooting ............................6
4 Access Internal Components����������10
Rear Access .............................................10
Front Access.............................................10
5 Test and Remove Modules ��������������11
Module Lanyard Attachment ................11
Remove a Module From the Display
Face (Front Access) ................................11
Reinstall a Module (Front Access) .........11
Remove a Module (Rear Access) .........12
Remove a Module from Behind Internal
Enclosures .................................................13
Reinstall a Module (Rear Access)..........13
Remove a Fan Plenum............................14
6 Test and Replace Display
Components �������������������������������������15
Test a Module...........................................15
Module Status Indicators ���������������������15
Perform a Module Self-Test������������������15
Replace Module Power Supplies...........15
Test and Replace a ProLink Router........16
Test a PLR �����������������������������������������������16
Testing the Display Face with the PLR�16
Replace a ProLink Router���������������������17
Replace a Display Fan�������������������������17
7 Control Equipment Overview,
Service, and Replacement��������������18
Control Equipment Overview.................18
ISP Enclosure �����������������������������������������18
DMP-8000 ����������������������������������������������18
VIP-5160�������������������������������������������������18
SmartLinkTM �������������������������������������������������������������������������������18
Open the ISP Box .....................................18
Connect a Laptop ..................................18
Replace Control Equipment ..................19
Replace the DMP-8000 ������������������������19
Replace the VIP-5160 ��������������������������19
Replace the DMP/VIP Power Supply ��19
Replace the ISP Enclosure Filter ����������20
Replacing the Router ���������������������������20
Replace the Network Switch ���������������20
Replace the SmartLinkTM ......................................... 21
Replace the Z-Filter ������������������������������21
Replace the Heater������������������������������21
Replace the Fan �����������������������������������21
8 Test and Replace the Multi-Direction
Light Sensor ���������������������������������������22
Test the MDLS ...........................................22
Replace the MDLS...................................22
9 Access and Troubleshoot the
Webcam��������������������������������������������23
Retract the Webcam to the Display
Face (Rotation Mount Only) ..................23
Troubleshoot the Webcam.....................23
10 Display Maintenance�����������������������25
Service Calls .............................................25
Annual Inspection ...................................25
A Reference Documents ���������������������27
B Daktronics Warranty and Limitation
of Liability�������������������������������������������29

– ii –
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Introduction
1
Introduction
1
1 Introduction
Important Contact Information
Daktronics Help Desk: 1-877-DAK-HELP
Project Manager: Phone Number:
Email: [email protected]
Display Identication
This section provides information that is helpful
in understanding a Daktronics digital billboard
display label. Refer to Figure 1 while reading the
table below.
Display Assembly Number
Display Serial Number
Manufacture Month/Date Year
DB-66 Modules High X Modules Wide
RMN: Daktronics - 0200 - 11 Manufactured in Sioux Falls, SD
120/240 VAC, Single Phase, 60 HZ
AMPS (L1/L2) = Total AMPs for the display
Total Watts = Watts for the display
Terms Used in this Manual
DMP-8000: Digital billboard content player that sends content to the VIP.
Lanyard Attachment Ring: A ring found on the back of each module and on the display
doors that attaches to a lanyard and prevents the module from falling.
Latch Release: Releases the latch that holds the module rmly in the display. The latches
are centered near the top and bottom of the module.
Light Emitting Diode (LED): Low-energy, high-intensity lighting unit.
Line Filter: Removes electromagnetic noise that might interfere with local communication
channels from the power system.
Module: Consists of a display board with LEDs, a driver board or logic card, housing, a
module latch assembly, and a louver. Each module is individually removable from either
the front or back of the display. Module part numbers vary by pixel pitch.
ProLink Router (PLR): The PLR takes data in and then routes that data to other areas in the
sign. There is typically one PLR per display section.
Power Supply: A device that converts AC line voltage from the panel board to low DC
voltage for driver boards. In the DB-66XX series, one power supply powers two modules,
one controller, or a ProLink Router (PLR).
Serial Advanced Technology Attachment (SATA) Cable: Allows high speed signal from
ow from device to device. In digital billboards, they run signal from module to module
and from the PLR to the modules.
Termination Block: An electrical connection point, usually used to connect internal
power and signal wires of the same type coming into the display from an external
source.
VIP-5160: Video processor that sends video to the display and controls dimming, color
settings, and test patterns.
DAKTRONICS, INC.
201 DAKTRONICS DR.
BROOKINGS, SD 57006
AMPS PER LINE =
120-240 VAC, 1PH, 60HZ
DB-6600-7x15 MODS
EXAMPLE PRODUCT IDENTIFICATION LABEL
PHONE [phone]
WORK ORDER NUMBER
0A-2283-0002 REV: 00
(NEXT ASSIGNED #)
(TODAY'S DATE MM/DD/YY)
ASSY NO.
MFG DATE
SER. NO.
R
LL-2306
RMN: DAKT-0200-11 SF
TOTAL WATTS =
Figure 1: DB-66XX Series Display Label

Introduction
2
Spare Parts
Every Daktronics digital billboard
is shipped with spare parts that
include commonly replaced
components. The table lists some
of the components that may be
included in the spare parts rack
shown in Figure 2. Refer to the
spare parts inventory list contained
in the bag in the spare parts rack
for a list of the parts. Contact the
Region Service Specialist (RSS) to
order additional spare parts.
Description Daktronics Part Number
Module 0A-2278-5000 (20 MT)
0A-2277-5000 (16 MT)
28" SATA Cable W-2885
72" SATA Cable W-2889
4-Pin Mate N Lok Plug P-1439
Air Filter EN-2564
Splice Tool TH-1186
400W Power Supply 0A-2133-4005
Locate the Spare Parts Rack
Spare parts are located inside the
display cabinet behind the left-
most door. Refer to Figure 3.
Open and Remove the
Spare Parts Rack
1� Open the rear access door with
the spare parts label.
2� Loosen screws to remove spare
parts door.
3� Rotate modules out to access
the spare parts behind them.
Refer to Figure 2 and Figure 4.
Figure 2: Spare Parts in Spare Parts Rack
Spare Parts
Location
Doors
Control System
Location
Border
Module
Support
Ledger
Display Front
Ventilation Exhaust
Ventilation
Intake
Term
Panel
Power
Entrance
Display Back
Figure 3: Spare Parts Rack in Display
Figure 4: Clip Holding Spare Parts Door
Closed

Introduction
3
Remove A Module From The Spare Parts Rack
1� With one hand on the module face, insert the 1/8" hex
head wrench into the bottom access hole.
2� Turn the latch release approximately a quarter-turn
counterclockwise. You should feel the module release
from the module bracket.
3� Disconnect the SATA cables from the back of the
module.
4� Remove the plug inserted into the power jack, as
shown in Figure 5. Store the plug and cable in an area
free of debris for future use with replacement modules.
Field Replaceable Units
The table below lists component names and part numbers of components that can be
replaced in the display and the control system. Some of these components are located
in the spare parts rack. Contact the RSS to order components when needed.
Display FRUs Control System FRUs
Description Daktronics Part Number Description Daktronics Part
Number
Module 0A-2278-5000
20MT
0A-2277-5000
16MT Meraki Router A-4036028
400W Power Supply 0A-2133-4005 DMP-8000 Player
(Market) 0A-2285-0011
Surge Suppressor A-3732 DMP-8000 Player
(Lamar) 0A-2285-0012
Light Sensor - MDLS 0A-1690-4000 DMP-8000 Player (CCO) 0A-2285-0013
3 Pole Contactor A-3157 VIP-5160.2 0A-1603-8402
Axial Fan .4 A 115 Volt B-3505432 Ethernet Switch
(Market) 0A-1853-1200
12 VDC Relay K-1040 Ethernet Switch (Lamar
and CCO) A-2249
28" SATA Cable W-2885 500 W Heater 0A-1690-2900
72" SATA Cable W-2889 Mobotix Webcam 0A-1853-4605
Line Filter Z-1007 Mobotix Webcam
(Fisheye Lens) 0A-1604-4646
Term Panel - 20 Amp
Single Pole Breaker S-1045 SmartLinkTM (U.S./Can./ Mex) A-3707
Term Panel - 15 Amp
Breaker S-1035 SmartLinkTM (120V International) A-3189335
Term Panel - 20 Amp
Two Pole Breaker S-1126 Temperature Sensor 0A-1151-0013
Figure 5: Remove Plug From
Power Jack on Spare Module

Introduction
4
Display FRUs Control System FRUs
Description Daktronics Part Number Description Daktronics Part
Number
Power Entrance - 15
Amp 1P Breaker S-1187 60 V Surge Protector A-3159
Power Entrance - 20
Amp 2P Breaker S-1243 Axial Fan .16 A B-1102
Power Entrance - 6
Amp 1P Breaker S-1244 Filter EN-2564
120 VAC 16 A Relay A-3812 65 W Power Supply A-3143
ProLink Router 0A-1487-6009

Display and Control Overview
5
2 Display and Control Overview
This section describes generic power and signal paths for Daktronics digital billboards.
Refer to display-specic signal and riser drawings for component locations on your
display.
Display Control System Flow Overview
Figure 6 shows the control system
location. The control system bay or
components may vary slightly by
display. Refer to project-specic
drawings for display control
location, signal path, and power
path.
Display Power
Overview
Each 400W power supply powers
10 modules in DB-66XX series
billboards.
Power to the display section enters into the termination panel and is redistributed to the
power supplies. Refer to the layout drawing for display-specic power distribution.
Display Signal Overview
Signal is sent from the DMP-8000 to the VIP-5160. The VIP-5160 sends signal to the PLR,
which sends the signal to the rst module in the section. From that module, the signal is
sent to the other modules in the section. The PLR not only sends signal to the rst module
in the chain but also receives signal from the last module in the chain and creates a
redundant signal path.
See Block Diagrams DWG-04269758, DWG-04269759, and DWG-04269760 in Appendix A
for signal routing details.
Spare Parts
Location
Doors
Control System
Location
Border
Module
Support
Ledger
Display Front
Ventilation Exhaust
Ventilation
Intake
Term
Panel
Power
Entrance
Display Back
Figure 6: DB-66XX Series Control Components

Display Troubleshooting
6
3 Display Troubleshooting
Remotely Cycle Power
Daktronics DB series displays ship with an integrated
SmartLinkTM for remote power control of display
components. The SmartLinkTM has four relays for
independent control of various components as shown
in the relay table. The VIP-5160 monitors equipment on
the network and attempts recovery via communication
between it and the SmartLinkTM. Refer to Figure 7 while
reading the relay function table:
Relay Component
R1 ISP Enclosure
R2 DMP-8000/VIP-5160.2
R3 Display
R4 Auxiliary Power
If remote troubleshooting is desired, call Daktronics help
desk at 1-877-DAK-HELP and they can assist. Do not
press the buttons in the SmartLinkTM to cycle power to the
components because it can take as long as an hour to
reset the relays.
Display Troubleshooting
Work with Daktronics help desk or experienced technicians to address display issues.
See the following table for troubleshooting steps.
Issue Issue Image Troubleshooting Steps
Content
switched
between display
sections
1. Check the ber interconnect cables
between the display sections because
they may be switched. Port A should be
connected to Port A. Port B should be
connected to Port B.
2. Check the ber cables coming from the
VIP because they may be switched.
Scattered or out
of order content
1. The SATA cable and redundant SATA
cable from the PLR to the modules may be
switched.
2. Call Daktronics help desk to verify the
translation table is correct.
R1
R3
R4
R2
Incoming
Power
RS232
Figure 7: SmartLinkTM
Figure 8: SmartLinkTM Relay Bank

Display Troubleshooting
7
Issue Issue Image Troubleshooting Steps
Area of content
mixed up -
module ID out of
order
Verify the SATA cable path in that area is
correct by comparing it to the display signal
drawing. If not, correct the signal path.
Entire display
blank
1. Verify there is power to site by ensuring
the power supply indicators are on. If they
are on, there is power to site and it is most
likely a signal issue. If there is site power,
continue to Step 3.
2. Verify the contactors for each display
section are closed and allowing power to
the display and control system.
3. Verify the ProLink Router (PLR) is receiving
power. If the LED indicator lights are on,
unplug and reestablish power to the PLR.
4. Verify the ber cables from the VIP to the
PLR are connected.
5. Call Daktronics help desk at 1-877-DAK-
HELP (325-4357) and have them verify the
content that was supposed to play was
successfully uploaded and sent to the
display.
Display too
bright
1. Immediately call Daktronics help desk and
have them blank the display.
2. Verify the Multi-Direction Light Sensor
(MDLS) is connected.
3. Inspect the area for a light source shining
on the Multi-Direction Light Sensor (MDLS).
This may cause incorrect readings. If
necessary, relocate the MDLS to a different
area.
4. Verify the MDLS is mounted correctly. If
not, remount the MDLS.
5. Have the help desk verify that the MDLS is
set to multi-direction and automatic.
Display too dim
1. Verify the MDLS is connected.
2. Verify the MDLS is mounted correctly. If
not, remount the MDLS.
3. Verify there is no debris or excessive dirt
buildup on the three MDLS windows.
4. Have the help desk verify that the MDLS is
set to multi-direction and automatic.
5. Have the help desk verify the display is
not experiencing thermal dimming due to
excessive heat.

Display Troubleshooting
8
Issue Issue Image Troubleshooting Steps
Blank display
section
1. If applicable, verify the ber interconnects
are installed.
2. On displays with multiple sections or power
entrances, verify the power interconnect
cables between the display sections are
connected.
3. Check the modules at the beginning and
end of the affected area. This issue can
be caused by disconnected or bad SATA
cables on both of those modules. If the
module power indicator is on, there is most
likely a SATA cable issue. If the module
power indicator light is off, there is most
likely a module issue.
4. Measure site power and verify it meets
the requirements listed on the system
riser. If this issue appears when there is
white or light content, it is possible there
is insufcient power to the display. If this
is the case, work with an electrician to
establish the correct site power.
5. Verify the PLR has power and is
functioning. Disconnect and reconnect
power to the PLR.
6. Verify there is power to that display section
by checking module status indicators on
multiple modules. If there is no power,
check the breakers on that sections term
panel.
7. Check that the contactors in each display
section are closed which means that
section should be receiving power.
1 module out
1. Ensure the SATA and power cables to the
module are connected and secure.
2. A SATA cable may be damaged, replace
both SATA cables to the module to see if
this addresses the issue.
3. It is likely a bad module. Swap the module
with a replacement module and verify
that the new module functions correctly.
Multiple modules
out
1. Check module output with a multimeter
to verify there is output from the 12VDC
supply. If there is no output, and there is
power connected to the power supply,
replace the power supply.
2. If there is power to the power supply and
the modules, check the SATA cables to
the modules. It is possible the SATA cables
at the beginning and end of the affected
modules are disconnected or bad.

Display Troubleshooting
9
Issue Issue Image Troubleshooting Steps
3 or more
modules out
in a line within
the same PLR
section
1. Check the modules at the beginning and
end of the affected area. This issue can
be caused by disconnected or bad SATA
cables on both of those modules. If the
module power indicator is on, there is most
likely a SATA cable issue. If the module
power indicator light is off, check the
power supplies for the modules at each
end of the issue are on. If not power or
signal, it is most likely a module issue.
2. Measure the site power to verify it meets
Daktronics requirements. If this issue is only
seen with white or light-colored content,
there is most likely a power issue. If there is
insufcient power, work with an electrician
to establish proper site power.

Access Internal Components
10
4 Access Internal Components
Rear Access
DB-66XX series digital billboards have lift-off doors that are
secured with a tab in the top-left corner. Refer to Figure 9.
1� Place ngers in slot located at the top-left corner of
the door.
2� While pulling up on the handle in the center of the
door, pull the top-left corner of the door outward so it
clears the tab located on the door. Refer to Figure 9.
3� Lift the door upward to disengage its tabs from the
slots on the display’s backsheet. Refer to Figure 10.
4� Lower door until its top lip is free of the backsheet.
To completely move the door out of the way, disconnect
the lanyard connected to the door.
Front Access
Remove modules from the display front to gain access
to the cabinet’s interior. Refer to the steps in Remove a
Module From the Display Face (Front Access).
Figure 9: Rear Access Door Slot
Figure 10: Removing Door

Test and Remove Modules
11
5 Test and Remove Modules
Module Lanyard Attachment
Daktronics recommends attaching a module lanyard (located in the spare parts rack)
whenever removing a module. To attach a module lanyard:
1� Attach one end of the module lanyard to a lanyard attachment ring on the top of
the of the module.
2� Feed the lanyard over a wire rod or through a nearby upright. Do not anchor the
module to another module.
3� Attach the other end of the module lanyard to the lanyard attachment ring on the
top of the module.
Remove a Module From the Display Face (Front
Access)
Required Tools: 1/8" hex head wrench, module lanyard
(from the spare parts rack)
To remove a module from the front complete the
following steps:
1� Insert the 1/8" hex head wrench into the top access
hole.
2� Turn the latch release approximately a quarter-turn
counterclockwise. You should feel the module release
from the display face.
3� Pull the module from the display face just far enough
to reach the back of the module.
4� Disconnect the power and SATA cables from the back of the module.
5� Gently place the module on a clean and dry surface.
Note: If there is no place to set the module, use a safety lanyard to hang the
module from the back of the display. Attach the safety lanyard in a way that
takes up slack on the lanyard. Carefully let the module hang while ensuring it
does not damage LEDs, louvers, or gasket.
Reinstall a Module (Front Access)
When installing new modules, place them in the outer ring of the display.
1� Reinstall the module by aligning it with the opening.
2� Reattach the power and SATA cables.
3� Carefully hook the module into the module sheet and rotate the module top to the
module sheet. Verify that SATA and power cables are not being pinched between
the module and display face.
4� Firmly press the upper half of the module against the display face.
5� Insert the 1/8" hex head wrench into the bottom access hole and turn approximately
a quarter-turn clockwise or until you feel it latch in place.
Access
Hole
Figure 11: Module Access Hole

Test and Remove Modules
12
6� Insert the 1/8" hex head wrench into the top access hole and turn approximately a
quarter-turn clockwise or until you feel it latch in place.
7� Gently pull on the module to verify it is properly seated.
Remove a Module (Rear Access)
Required Tools: 1/8" hex head wrench, or 1/8" L-handle hex
head wrench for modules in the bottom or top rows of a
section, module lanyard (from the spare parts rack)
1� Attach one end of the safety lanyard to a lanyard
ring on the top of the module.
2� Feed the lanyard through the lanyard ring on the top
of the display directly below the module that will be
removed.
3� Attach the other end of the lanyard to the lanyard
attachment ring on the bottom of the module that
will be removed. Refer to Figure 12.
4� Disconnect the SATA and power cables from the
back of the module.
5� With a 1/8" hex head wrench, turn the bottom latch
gear approximately a quarter-turn clockwise to
disengage the latch.
6� With a 1/8" hex head wrench, turn the top latch gear
approximately a quarter-turn clockwise to disengage
the latch.
Note: Maintain a rm grip on the module as you
remove it from the face sheet.
7� Rotate the module in a way that allows you
to guide it through the frame opening without
catching the louvers or LEDs on the cabinet.
Figure 13 shows proper module removal from
the back. Figure 14 shows improper module
removal from the back.
Figure 12: Attach Safety Lanyard
to Modules
Figure 13: Proper Module
Removal From Back
Figure 14: Improper Module Removal
From Back

Test and Remove Modules
13
Remove a Module from Behind Internal Enclosures
Required Tools: 1/8" hex head wrench, module lanyard
1� Remove pins from one side of the enclosure (ISP,
term panel, SmartLink, and spare parts rack). Refer to
Figure 15.
2� While holding the enclosure, allow it to slowly rotate
open and out of the way. Refer to Figure 16.
3� Follow the steps in Remove a Module From the
Display Face (Front Access) to remove a module
and Reinstall a Module (Front Access) to reinstall a
module.
4� If needed, remove all pins that hold the enclosure
in place in the cabinet. Lift the enclosure out of the
cabinet and set aside while ensuring power and
signal cables do not get pinched.
5� Reverse Steps 1–4 to replace the enclosure.
Reinstall a Module (Rear Access)
When installing new modules, place them in the outer
ring of the display.
1� Rotate and carefully guide the module through the
module opening, as shown in Figure 17.
Note: To ensure proper alignment, verify the word
TOP printed on the back of the module is to
the top left of the face sheet.
2� Once the module is through the display face, align
the module with the face sheet. Ensure the lanyard
or cables do not pinch between the module and the
display.
3� After the module is in place, use the module lanyard
rings or the lanyard to pull the module rmly against
the face sheet.
4� With a 1/8" hex head wrench, turn the latch gear
approximately a quarter-turn counter-clockwise to
engage the latch.
5� Connect the SATA and power cables to the back of
the module.
Figure 15: Remove Pins
Figure 16: Hinge ISP Enclosure
Out of Display
Figure 17: Rotate Module To
Clear Face Sheet

Test and Remove Modules
14
Remove a Fan Plenum
Fan plenums may need to be removed because they
restrict access to modules in the bottom row of each
section.
1� Disconnect the power harness attached to the fan.
Refer to Figure 18.
2� Press inward on the bottom of each side of the fan
plenum. Refer to Figure 19.
3� When the plenum tabs, shown in Figure 20,
disengage, gently pull the plenum upward and
remove it from the display.
4� Reverse Steps 1–3 to reinstall the fan plenum.
Figure 18: Fan Power Harness
Figure 19: Removing Fan Plenum
Figure 20: Fan Plenum Tab

Test and Replace Display Components
15
6 Test and Replace Display Components
Test a Module
Module Status Indicators
Under normal operation, module indicator LEDs
(one on each side on the back of the module)
should ash once every two seconds. Refer to
Figure 21.
Note: When troubleshooting, it is important to
know that the module may take up to
eight seconds to change the pattern.
Perform a Module Self-Test
If a module is blank, but has power supplied to it,
perform a module self-test to diagnose a module
or SATA cable failure. To perform a self-test, follow
the steps below.
Click here to view a video about performing a
module self-test.
1� Attach a SATA cable to Port A and Port B on
the module, as shown in Figure 22.
2� Disconnect the power to the power supply for
10 seconds.
3� Reconnect the power to start the self-test.
4� Verify the module is running a self-test.
Remove the SATA cable and cycle power to the
module to stop the self-test.
For more information, see DD1944805, Performing
a Daktronics Module Self-Test, in Appendix A.
Replace Module Power Supplies
The power supply provides power from the term panel to the
module. The module power supply is located on the uprights. Each
power supply typically controls 10 modules.
1� Disconnect the power coming from the term panel to the
power supply.
2� Disconnect the power cables from the power supply to the
modules. Refer to Figure 23.
3� While holding the power supply against the vertical, rotate the
power supply bracket release tab counter-clockwise off of the
power supply.
4� Gently lift the power supply assembly off the upright.
LED Status
Indicators
SATA
(Signal)
Jacks
Power
Jack
Figure 21: Labeled Module Back
Figure 22: Module Self-Test
Figure 23: Power
Supply Mounted to
Upright

Test and Replace Display Components
16
Test and Replace a ProLink Router
A ProLink Router (PLR) sends the signal from the DMP-8000
to the modules via SATA cables.
Click here to view a video about testing and replacing a
ProLink Router.
Test a PLR
Before replacing a PLR, it may be benecial to perform a
self-test. To perform this test:
1� Connect a duplex ber cable from Fiber Port A to
Fiber Port B. Refer to Figure 24.
2� Connect a working SATA cable from SATA Port A to
SATA Port B.
3� Connect the power cable to the PLR. This will start the PLR self-test.
4� Wait for the test to complete. This may take up to 90 seconds. If the PLR successfully
sends and receives data through each of the ports, the letters P.A.S will appear on
the Seven Segment Display. If the letters E.r.r appear, the Seven Segment Display
will show the port numbers with issues. Refer to the ProLink Router 6050 Manual in
Appendix A for a full list of error codes.
5� Replace the PLR if the error persists after troubleshooting.
Note: It is possible to have a break in just one path, so for example it is possible all of
the modules may turn Yellow indicating “A” is healthy, but only some of them
turn Magenta indicating a break in the “B” path that needs to be repaired.
Testing the Display Face with the PLR
1� Loop a ber cable across the A and B ber
ports (ProLink6) on the PLR (SATA cables will be
left connected to modules) and cycle power
to the PLR. The PLR will display the following
content on the portion of the display that the
PLR is controlling:
• Solid Red (signal is sent out of ProLink5
ports A and B).
• Solid Green (signal is sent out of ProLink5
ports A and B).
• Solid Blue (signal is sent out of ProLink5
ports A and B).
• Solid White (signal is sent out of ProLink5
ports A and B).
• Solid Amber (signal is only sent out of ProLink5 port A).
Note: Any modules that show white while on this test indicate a break in the
signal path. If all of the modules turn yellow, it indicates the signal path in
the “A” direction is working 100 percent. Refer to Figure 25.
Figure 24: ProLink Router
Connected For Self-Test
Figure 25: ProLink Router Port A Test