Daktronics AF-3700-34 RGB User Manual
Page 38
Diagnostics and Troubleshooting
32
A section of the display is not working
• Check/replace ribbon cables from the last working module in the row to the first
non-working module next to it.
• Move or replace the first non-working module, the one on the far left of the non-
working section.
• Move or replace the first module to the left of the non-working modules.
• Check the back of the modules to see that the power LEDs are on.
• Make sure the power cable to the module is connected.
One row of modules is not working or shows a distorted message
• Check/replace the ribbon cables to and from the first non-working module.
• Check for bent pins on the jack going to a non-working module.
• Move or replace the modules that show distorted text.
• Move or replace the first module to the left of the one that isn’t working.
• Check the fuse from the output and replace if necessary.
A column of the display does not work
• Check that the ribbon and power cable are plugged into the first module in the row.
• While power is on, look at the back of the first malfunctioning module to see if the
diagnostic LED is off, implying a power supply problem.
Entire display fails to work
• Check the breakers in the building connected to main power source.
• Check the breakers in the power termination panel (bottom row, second module
from the left).
• Check the fiber cables between the controller and the MLC.
• Check the diagnostic LEDs on the controller for Power and Run (Section 7.1).
• Check/replace the ribbon cable from the MLC to the modules.
• Verify proper use of the software by checking the software manual.
Brightness problems
Display is stuck on bright or dim
• Check Manual/Auto dimming in Venus 1500 software. The Brightness is typically set
to Automatic. If not, perform the following step:
In Display Manager/ Diagnostics, select Automatic and click Set Brightness.
• Check the light sensor cable and wiring for secure connections.
• Check the light sensor lens for obstructions (lower left edge, front of primary
cabinet).
• Replace the light sensor assembly.
Figure 45: Modules Not Working