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8. Measure the color point of the pattern with the colorimeter and verify the values:
Color
Red
Green
Blue
White
If the values are outside the tolerances, check the MCGD values are correct, the channel was
created correctly, or reposition the yellow notch filter. If these corrective measures do not work,
replace the yellow notch filter. Repeat the entire procedure for each corrective action you
attempt.
9. Repeat steps 7 and 8 for the RBG-12bit-Full Screen Red, Green, and Blue test patterns.
10. Replace the yellow notch filter cover.
11. Replace the top skin.
Adjusting DMD convergence
A convergence problem occurs when one or more projected colors (red, green, blue) appears
misaligned.
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.
Notice. Failure to comply with the following may result in property damage.
•
Do not operate the product while performing convergence with the light engine fan pack or
cooling duct removed. This causes overheating of the satellite formatter board FPGAs.
Preparing for convergence
Ensure the following tasks are completed before performing a convergence adjustment.
•
Reset the red, green, and blue digital micromirror device (DMD) values to their default
settings:
•
On the touch panel controller (TPC), tap Menu > Service Setup > Digital
Convergence > Default.
•
Make sure the projected image is centered and focused on the screen. If it is not, adjust the
boresight (on page 65).
•
Make sure a prime lens is installed. Do not use an anamorphic or wide converter lens when
adjusting convergence.
•
Configure the projector for maximum usable brightness for the installed application:
•
14 FL for standard 2D
•
~25-30 FL for single projector 3D with a silver screen
•
Operate the projector for 15 minutes or longer.
CP2208-LP Service Manual
020-102263-01 Rev. 1 (09-2016)
Copyright
2016 Christie Digital Systems USA Inc. All rights reserved.
©
X
0.640
0.280
0.160
0.314
Y
0.320
0.640
0.100
0.351
Service setups
Tolerance
+/- 0.002
21
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