4-3-1 Color Coordinates (Temperature)
Color temperature is a measurement of the
radiant energy transmitted by a color. For
computer monitors, the color temperature refers
to the radiant energy transmitted by white. Color
coordinates are the X and Y coordinates on the
chromaticity diagram of wavelengths for the
visible spectrum.
CONDITIONS
Measurement instrument: Color analyzer
Scanning frequency:
91 kHz / 85 Hz
Display Size :
393 (H) x 295 (V)
Display image:
White flat field at
center of display area
Brightness:
Cut-off
Contrast:
Maximum
PROCEDURE
Use the directions in sections 4-3-2 through 4-3-4
to adjust the color coordinates for:
9300K to x = 0.283 ± 0.02, y = 0.298 ± 0.02
5000K to x = 0.346 ± 0.02, y = 0.359 ± 0.02
sRGB to x = 0.313 ± 0.02, y = 0.329 ± 0.015
4-3-2 Color Adjustments for 9300K
4-3-2 (a) BACK RASTER COLOR ADJUSTMENT
CONDITIONS
Scanning frequency:
91 kHz / 85 Hz
Display image:
Back raster pattern
Brightness:
Cut-off
Contrast:
Maximum
1. Select COLOR CHANNEL 1 to control the
color for 9300K.
2. Adjust the luminance of the back raster to
between 0.5 to 0.7ft-L using the “GREEN
CUTOFF”
controls.
3. Use control bar after selecting “BLUE
CUTOFF”
in left menu to set the “y”
coordinate to 0.298 ± 0.015
4. Use control bar after selecting “RED
CUTOFF”
in left menu to 0.283 ± 0.015
* If color values would not be matched desirable
values, repeat sequence 3 and 4 after readjusting
“GREEN CUTOFF” control a little different.
4-3-2 (b) G-GAIN ADJUSTMENT
Figure 4-8. Green Box Pattern
CONDITIONS
Scanning frequency:
91 kHz / 85 Hz
Display image:
Green box pattern
Brightness:
Cut-off
Contrast:
Maximum
1. Click on the << or >> box next to G_GAIN to
adjust the brightness of the Green Gain to
24 ± 1 ft-L.
2. Click on the << or >> box next to “BM
Contrast”
to adjust the Brightness of the High
Light Gain to 65 ft-L when the High Light
function was (“BM Contrast” Menu is in the
“Extra Menu”) activated with Maximum size.
4-3-2 (c) WHITE BALANCE ADJUSTMENT
CONDITIONS
Scanning frequency:
91 kHz / 85 Hz
Display image:
Full white pattern
Brightness:
Cut-off
Contrast:
Maximum
Figure 4-9. Full White Pattern
1. Click on the << or >> boxes next to R_GAIN
and B_GAIN to make the video white.
(For 9300K color adjustment:
x = 0.283 ± 0.02, y = 0.298 ± 0.02.)
Note:
Do not touch the G_GAIN controls.
2. Check the ABL. If it is not within the
specifications (28 ± 1 ft-L), use the ABL
controls to adjust it.
3. Select COLOR FACTORY SAVE to save the
data.
4 Alignment and Adjustments
4-4
CF21G*
CONFIDENTIAL
4-3 Color Adjustments
1/3H-1/2H
1/3V-1/2V
FRONT BEZEL OPENING
BACK RASTER
GREEN WINDOW
FRONT BEZEL OPENING
BACK RASTER
WHITE WINDOW
Summary of Contents for CF21G Series
Page 32: ...CONFIDENTIAL CF21G 6 1 6 Exploded View and Parts List ...
Page 33: ...Memo 6 Exploded View Parts List 6 2 CF21G CONFIDENTIAL ...
Page 61: ...CONFIDENTIAL Memo 8 Block Diagrams 8 2 CF21G ...
Page 63: ...Memo 9 Wiring Diagram 9 2 CF21G CONFIDENTIAL ...
Page 65: ...CONFIDENTIAL 10 Schematic Diagrams 10 2 CF21G 1 368 V IC601 1 ...
