Adjusting The Dichroic Mirror 3 - Christie GS Series Service Manual

• If pressing the focus Up key results in position 2 coming into focus, adjust set screw B
clockwise.
• If pressing the Down key results in position 2 coming into focus, adjust set screw B
counterclockwise.
3. Refocus position 1 and check if position 2 is also in focus. If not, repeat steps 1 and 2.
4. If the projector is still not in focus, reset the set screw position:
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 3

Warning! Failure to comply with 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 adjustin
After replacing the cooling module and blue laser bank, adjust the dichroic mirror 3 (DM3).
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 the White.
6. To tune the color temperature of P5 to between 5750K to 6250K, adjust the right dichroic
mirror 3 (DM3) screw.
7. To tune the color uniformity, adjust the left dichroic mirror 3 (DM3) screw.
GS Series 630-635 Service Manual
020-001224-02 Rev. 1 (08-2018)
on page 13.
Service setups
the dichroic mirror 3 (DM3).
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