Maintenance and Troubleshooting
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4.
Thoroughly rinse the display face with cold water under low pressure.
5.
Use a soft, dry terry cloth to remove remaining moisture.
Pressure Wash Cleaning Method
Cleaning supplies:
•
Pressure washer
•
45° spray nozzle rated for 1,500 psi or less
Cleaning process:
1.
Turn off power to the DMS.
2.
Spray face and sides of the DMS. Keep the nozzle of the pressure washer at least 2'
away from the display.
Note:
Use caution along areas of the display containing seams, weather stripping, or
silicone. Ensure the pressure washer does not peel or rip any sealing material.
LEDs
When necessary, clean the LEDs with a damp cloth, a soft brush, a feather duster, or an anti-
static, polycarbonate-type cleaner applied to a damp cloth. Do not spray the cleaner directly
onto the LEDs.
LED and Electronic Circuitry
Test LED and electronic circuitry at intervals determined by customer requirements.
Daktronics recommends performing the tests at least monthly. Perform tests on the DMS to
check for hardware problems and incorrect variable settings.
Note:
The following tests display functions, not other DMS equipment hardware.
1.
Connect to the VFC-3000 controller and establish communication with the display.
2.
Check that the temperature levels shown on the Sign Status screen of the Sign
Control tab are the appropriate values for both internal and external temperature.
3.
Perform a diagnostics test and check that all the power supplies and other configured
peripherals pass.
4.
Make sure the photocell readings are appropriate for the current conditions.
5.
Perform a pixel test and repair bad pixels.
