Barco F70 Series, Service Manual

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10.1 Perfecting the lighting path
• Test Image: Full White
• Tool: 1,5mm hex key
The projection system provides traditional facilities to adjust x & y orientation of the lighting mirror to ensure
the DMD active image area is illuminated and available light is fully utilized.
Additionally, the system has facilities to adjust the focus plane of the light beam at rod exit side (rod focus)
towards the DMD by adjusting Relay tube focus.
The system also features possibility to perfect the color uniformity within each leg through adjustment of the TI
Loop mirror.
All these elements contribute towards providing the brightest, sharpest and most uniform image as possible in
this class of projection.
10.2 Lighting Mirror adjustment:
Located on the Illumination engine, outside the folding mirror assembly you find traditional mirror adjustment.
Two adjustment knobs allow you to adjust the orientation of the mirror. The upper knob (A) adjusts the
Horizontal (X) direction while the lower knob (B) is for Vertical mirror adjustment (Y).
Location of the
lighting mirror knobs
A
B
Image 10-1
10.3 Lighting mirror: Horizontal (x) Adjustment
Turn knob (A) with fingers to adjust mirror horizontally until full image is projected, no vertical bands are
present in edge of image
Optical adjustments