Barco DP2K-12C, Service Manual

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7. Cold mirror assembly
Z
X
Y
3
1
2
Image 7-12
2. Turn the adjustment screw 3 (reference 3 image 7-12) in or out until the maximum light output is measured.
3. Repeat step 1 and 2 until the maximum light output is measured.
4. Adjust the X-axis, Y-axis and Z-axis (reference X, Y & Z image 7-12) of the xenon lamp in the Lamp House for maximum light
output. Carefully turn the thumbscrew for maximum light output. Once over the maximum, turn slightly in opposite direction to
reach the maximum light output again. Do this for each direction and minimum repeat this adjustment cycle twice.
5. Turn the adjustment screw 1, 2 and 3 (reference 1, 2 & 3 image 7-12) equally in or out until the maximum light output is measured.
6. Repeat from step 1 until the maximum light output is measured.
7. Check the brightness uniformity. In most cases it will be OK.
If not OK, turn slightly on the adjustment screws 2 and 3 (reference 2 & 3 image 7-12) until a uniform brightness is obtained.
-
Screw 2 (reference 2 image 7-12) will correct the difference between the left and the right side of the projected image.
- Screw 3 (reference 3 image 7-12) will correct the difference between the top and the bottom side of the projected image.
Check again and repeat if necessary.
8. When the adjustment is fi nished, secure the position of the cold mirror by turning the lock nuts (reference 4 image 7-12) against
the plate (hold on the screws while securing the nuts).
132 R5905043 DP2K-12C/11CX 19/02/2018