Performing The Dac Calibration - Christie Cinema 4K-RGB CP4315-RGB Service Manual

7. Install the new color sensor board harness (P/N: 001-113506-02) starting near the HKBB,
routing through all routing clips and finishing at the lowest P-clip.
8. Gently route the color sensor board harness under the IOS and pull it into position at the
underside of the projector.
9. Connect the harness to the color sensor board.
10. Reinstall the color sensor board PCB.
11. Reinstall all modules and covers previously-removed.

Performing the DAC calibration

Calibrate the black levels for the new color sensor board.
1. Prepare the projector for DAC calibration:
a) Turn off the laser light.
b) Close the shutter.
c) Install the lens cap.
The lens cap minimizes any stray light entering through the lens and maximizes darkness
around the sensor during the calibration.
Cinema 4K-RGB Service Guide–CP4315-RGB, CP4320-RGB, CP4325-RGB, CP4330-RGB
020-102713-03 Rev. 1 (11-2019)
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Printed circuit boards and sensors
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