Christie APS Series Service Manual page 86

Adjustment procedure 1
(When a color differential meter is used)
1. First adjust the -MID-1- tone, from G color.
2. Select G of point No.2 and change the
background to solid G monochrome.
3. Measure the illumination at points No. 2, 3, 10
and 11.
The values should be:
No.2 = Y2 [lx], No.10 = Y10 [lx]
No.3 = Y3 [lx], No.11 = Y11 [lx]
4. Points No.2 and No.3 have the average of Y2
and Y3.
Y2 = ( Y2 + Y3 ) / 2 ± 3 [%]
Y3 = ( Y2 + Y3 ) / 2 ± 3 [%]
5. Points No.10 and No.11 have the average of
Y10 and Y11.
Y10 = ( Y10 + Y11 ) / 2 ± 3 [%]
Y11 = ( Y10 + Y11 ) / 2 ± 3 [%]
6. Then adjust R and B color of the -MID-1- tone.
Change the background to solid W monochrome.
7. Measure the color coordinates of point No.1 and
make a note of them.
Assume that they are x = x1, y = y1.
NOTE: When the CL-100 or CL-200 color and
color difference meter is used, the Δ(delta) mode
is convenient. When point No.1 color coordinate
has been selected, set the slide switch on the
side to Δ while holding down the F button on the
front panel. The measurement shown after this
displays the deviation from point No.1.
8. Measure the color coordinates at point No.2 and
adjust R and B color of point No.2 so that the
coordinates are as follows.
x = x1 ± 0.005 , y = y1 ± 0.005 (as target)
x = x1 ± 0.010 y = y1 ± 0.015
9. Measure and adjust their color coordinates of
points No.3 to 17 in the same way starting in
order from the small number points.
This completes adjustments required for -MID-1-
tone.
NOTE: Since excessive correction may lead
to a correction data overview during internal
calculations, use the following values for
reference.
No.2 to 5: ± 40 or less
No.6 to 9: ± 50 or less
No.10 to 13: ± 70 or less
No.14 to 17: ± 120 or less
LWU650-APS/LWU530-APS
Service Manual
LWU650-APS / LWU530-APS
10. Next, adjust the other tones in order of -MIN-,
-MID-3-, -MID-2-, -MID-5-, -MID-4-, -MAX- and
-MID-6-.
11. Adjust the -MIN-, -MID-3-, -MID-2- and -MID-5-
tones as following, from G color.
-MIN- tone : same as -MID-1- tone
-MID-3- tone : 0 (no adjustment)
-MID-2- tone : a half of -MID-1- tone
-MID-5- tone : 0 (no adjustment)
12. Select R or B of point No.2 at -MIN- tone and
change the background to solid W monochrome.
13. Measure the color coordinates at point No.1
and make a note of them. Assume that they are
x = x1, y = y1.
14. Now measure the color coordinates at point
No.2 and adjust R and B color of point No.2 so
that the coordinates are as follows.
x = x1 ± 0.010 , y = y1 ± 0.020 (Target)
x = x1 ± 0.040 , y = y1 ± 0.080
15. Similarly, measure and adjust their color
coordinates of points No.3 to 17 starting in order
from the small number points.
16. Now make similar adjustments for R and B
color of -MID-3-, -MID-2- and -MID-5- tones.
Adjust them in the same way as the -MIN- tone
adjustments in the step 12 to 15 so that the
coordinates are as follows.
x = x1 ± 0.005 , y = y1 ± 0.005
17. Finally, set the values of the -MID-4-, -MAX-
and -MID-6- tones as following using the values
already set.
-MID-4- tone : the mean value of -MID-3- and
-MID-5- tones
-MAX- tone : the value of -MID-5- tone plus 70%
of the difference between -MID-5- and -MID-3-
tones
-MID-6- tone : the mean value of -MID-5- and
-MAX- tones
85
(continued on next page)
020-001522-01 Rev. 1 (11-2018)
LIT MAN SERV APS Series