Adaptive AlphaXpress 2020, Operation And Maintenance Manual

Page: 23 / 52

A
LPHA
X
PRESS
2020 RGB F
RONT
A
CCESS
F
ULL
-M
ATRIX
D
ISPLAYS
S
IGN
O
PERATION AND
M
AINTENANCE
M
ANUAL
(PN 1523610201
REV
.
B
) 4-1
Maintenance
4
Maintenance
■
Physical inspection
A physical inspection of the sign’s exterior and interior should be performed every 6 months.
Exterior inspection
• Check for any physical damage to the exterior of the sign.
• Check for loose nuts, bolts, hinges, doors, and so on.
• Check the exterior electronics for foreign debris and general cleanliness.
• Check the exterior of the sign for general cleanliness.
• Check the LEDs of the sign for general cleanliness and visibility.
Interior inspection
• Check for any physical damage to the interior of the sign.
• Check for loose nuts, bolts, hinges, doors, and so on.
• Check the interior electronics for foreign debris and general cleanliness.
• Check the interior of the sign for general cleanliness.
• Make sure all fans are operational (see “Install a replacement venting fan” on page 5-14 for details on testing fan operation).
• Make sure the sign’s drain holes are not plugged.
■
Front lens cleaning (outside of sign)
Required materials
• Mild, nonabrasive liquid detergent (liquid glass cleaner).
• Do not use solvents. Use of solvents will damage the lens UV stabilizer.
• Soft cloth or soft paper towels.
Cleaning procedure
1. Mix the detergent with water in a large bucket. The solution may be put in a spray bottle for spot cleaning.
2. Wipe the face of the display using the mild soap solution and a non-abrasive cloth.
■
Filter cleaning
Required materials
• Mild, nonabrasive liquid detergent.
Note: Do not use solvents. Use of solvents will damage the filter media.
Cleaning procedure
1. Remove filter from ventilation housing and gently knock it against a hard surface to remove loose dust and dirt particles. For removal
instructions, see “Filter replacement” on page 5-15.
2. Wash thoroughly with soapy water and rinse with clean water.
3. Shake water from filter and allow to dry.
4. Replace filter in the ventilation housing.