Daktronics 4200 Series Digital Billboard - Manual (Page 11)

7
Section 3: Display Troubleshooting
3.1 Remotely Cycling Power
For the 4200 series of displays, Daktronics started shipping a SmartLink TM to every display. The
SmartLink TM has four different relays that the Daktronics help desk to remotely cycle power to
some control and display components. Refer to Figure 6 while reading the relay function table
below:
Relay Component
R1 ISP enclosure
R2 DMP-8065
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 SmartLink TM to cycle power to the components
because it can take as long as an hour to reset the relays.
3.2 Display Troubleshooting
The section provides generic guidelines for repairing issues
with the 4200 series. Work with Daktronics help desk or
experienced technicians to address display issues.
Issue Issue Image Troubleshooting Steps
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 fiber cables from the Digital Media
Player (DMP) 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.
Figure 6: SmartLink TM
Display Troubleshooting