Barco HDQ 4K35, User And Installation Manual

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4. Lenses & Lens Holder
Necessary tools
• Allen key 3 mm
• Nut driver 13 mm
• Nut driver 10 mm
How to adjust
1. Project a green focus pattern. For a 4K projector, use the 4K test pattern. Otherwise, use the 2K test pattern.
Image 4-25
2. Loosen the lock nuts (a, b, c and d). See image 4-24.
3. Loosen the 4 set screws (A, B, C and D) by 1 cm. See image 4-24.
4. Fully loosen lock nut 4. See image 4-24.
5. Optimize the focus of the projected image as follows:
a) Turn the Scheimp fl ug adjustment nuts 1, 2 and 3 until the front of the nut is equally aligned with the front of the threaded rod.
b) Adjust the focus in the center of the screen (F) using the motorized focus control.
1
2
3
F
Image 4-26
Center focusing
6. Sharpen bottom left corner of the screen by adjusting nut 1.
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