Adjust the Image
CP42LH Service Manual
31
020-101686-03 Rev. 1 (08-2016)
Adjust DMD convergence
The projector uses three separate digital micromirror device (DMD) panels to produce three
separate red, green, and blue image components. To ensure the most accurate color representation
across the whole image, adjust the convergence to perfectly align the three panels so that all pixels
line up. Read this entire section before adjusting convergence.
Failure to comply with the following could result in minor or moderate injury.
• Always wear an electrostatic discharge (ESD) strap and use insulated tools when
replacing the light engine or any other circuit board; however, Christie does not
recommend wearing a strap while converging a live unit, but to instead ensure frequent
contact with the bare metal of the projector to prevent static buildup.
• Do not touch the heat sink in the Light Engine compartment when converging a projector
as it is can cause burns.
Do not run the projector while performing convergence with the Light Engine Fan Pack
removed. This causes overheating of the Satellite Formatter Board FPGAs. Failure to comply
may result in equipment damage.
i
• All procedures must be followed as described and performed by Christie authorized,
trained personnel.
• Safety glasses are not required for convergence as exposures greater than Class 1 are not
possible.
• These instructions are intended to be a supplement descriptive guideline for information
on convergence. Personal tool preference, mechanical experience, and individual
techniques are all variables that make this document a subjective tool for use only by
experienced professional technicians.
A
Screws 1 and 2: Vertical and Twist Adjustment
B
Screw 3: Horizontal Adjustment
A
B
