Daktronics Valo Digital Billboard - Manual (Page 43)

Routine Maintenance 35
6.12 Cleaning a Display Face
Typically, it is not necessary to clean the display face. However, if the need arises, follow the
steps below.
Required tools:
• Five-gallon bucket.
• Non-abrasive, non-petroleum based detergent.
• 4' – 8' telescoping, soft automotive brush. Daktronics recommends a 10" × 4" brush
head and a brush of light to medium stiffness.
• Soft terry cloth towels.
• Cold water.
Wet Cleaning Instructions
1. Turn off power to the display.
2. Mix mild detergent and cold water in the five-gallon bucket at a ratio of one ounce of
detergent to one gallon of cold water.
3. Clean only a section of modules that are safely within reach of the lift or stage, and then
move to the next section of modules.
4. Working from top to bottom, use horizontal brush strokes to loosen dirt and grime. Use
light pressure as not to damage LEDs. When finished washing the display face, rinse it
with generous amounts of cold water under low pressure. A spot-free agent, such as Jet
Dry
® , can be used to reduce water spots.
5. Use a soft, dry terry cloth to dry and remove any excess water. Take care not to damage
LEDs by catching the cloth on them.
6. Allow the display to air-dry for one to two hours before applying power to the display.
7. Dispose of any leftover soapy water in an environmentally safe manner.
Dry Cleaning Instructions
1. Clean only a section of modules that are safely within reach of the lift or stage, and then
move on to the next section of modules.
2. Working from top to bottom, rub a dry, soft terry cloth towel horizontally across each
row of LEDs. Make four passes per row of LEDs before moving to the next row of LEDs.
3. Take care not to damage LEDs or the plastic louvers by catching them with the cloth.