Follow this procedure:
1. Take a firm grip around the inner ring of the lens. Rotate the inner ring 30° counter-
clockwise until it stops.
2. Carefully pull out the lens.
3. The infrared detector is now fully exposed. Do not touch this surface. If you see dust
on the detector, follow the instructions in 24.3
#T810253; r. AL/84068/84441; en-US
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