Christie HS 2K Series Service Manual page 18

Only clean optics when dust, dirt, oil, fingerprints or other marks are obvious or are the cause of
performance problems. Maintenance of optical components requires a qualified service technician.
Inspect exposed optical surfaces periodically in a clean, dust-free environment using a flashlight.
Always wear appropriate gloves when servicing any optical surfaces.
Supplies for cleaning optical surfaces
• Soft camel-hair brush
• Dust-free blower: Filtered dry nitrogen blown through an anti-static nozzle
• Dust-free lens tissue, such as: Optowipes (18LAB022), Kim Wipes, or equivalent
• For lens only: Lens cleaning solution
• Cotton swabs with wooden stems only
• Lens cleaning cloth/microfiber
Cleaning dust from the lens
Check the lens periodically. A small amount of dust or dirt on the lens has minimal effect on image
quality. To avoid the risk of scratching the lens, clean only if absolutely necessary.
1. Brush most of the dust away with a camel-hair brush and/or blow dust away with a dust-free
blower.
2. Fold a microfiber cloth smooth and gently wipe dust particles from the lens. Wipe evenly with
the smooth portion of the cloth that has no folds or creases. Do not apply pressure with your
fingers - use the tension in the folded cloth itself to collect dust.
3. If significant dust is still bound to the surface, dampen a clean microfiber cloth with coated
optics cleaner solution (damp, not dripping). Wipe gently until clean.
Cleaning fingerprints, smudges, or oil from the lens
Check the lens periodically. A small amount of dust or dirt on the lens has minimal effect on image
quality. To avoid the risk of scratching the lens, clean only if absolutely necessary.
1. Brush away most of the dust with a camel-hair brush and/or blow away using a dust-free
blower.
2. Roll a lens tissue around a swab and soak it in coated optics cleaner solution. Tissue should be
damp, but not dripping.
3. Gently wipe the surface with a figure-8 motion. Repeat this motion until the blemish is
removed.
HS Series 2K Service Manual—DWU1612-HS,DWU2022-HS
020-001790-01 Rev. 1 (03-2020)
Copyright ©2020 Christie Digital Systems USA Inc. All rights reserved.
Service guidelines
18