Adjusting The Dichroic Mirror Red - Christie GS Series Service Manual

a.Turn the set screws counterclockwise until tight.
b.Turn the set screws 1.5 turns in the clockwise direction back to their factory default setting.
c.Check that the alignment of the set screws matches what is shown in the image above.

Adjusting the dichroic mirror red

Warning! If not avoided, the following could result in death or serious injury.
• This projector has built-in Class 4 laser module. Never attempt to operate the projector without all
covers properly installed unless instructed to do so in this manual for service.
• Protective glasses are required for laser safety when adjusting the dichroic mirror red (DMR).
After replacing the combiner, and red laser bank, adjusting the dichroic mirror red (DMR) must be
done.
1.Project an image of 100 inches in a dark environment (< 2 Lux).
2.Put a chroma meter (CL200) on the screen center of position 5 (P5).
3.Enter Service mode.
See Entering Service mode
4.Click Test pattern.
5.Select Red.
6.To tune the brightness of P5, use a flathead 3/16" X 4" screwdriver to adjust right dichroic mirror
red (DMR) screw.
Stop adjusting the dichroic mirror red (DMR) screw when the brightness of P5 is at its maximum.
7.To fix the dichroic mirror red (DMR) screws, use Loctite 222 or green glue (BONBOND LOCK BB-
2100).
GS Series 1075 Service Manual
020-001236-02 Rev. 1 (12-2019)
on page 18.
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Service setups
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