– 13 –
Pressure Wash Cleaning Method
Cleaning supplies:
• Pressure washer rated for 1,500 psi or less
• 45° (or more) spray nozzle
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 that contain seams, weather stripping, or
silicone. Ensure the pressure washer does not peel or rip any sealing material.
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/Vanguard
®
Field 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 replace faulty modules.
