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參數(shù)資料
| 型號： | SYNCMASTER755DF(DF17J*) |
| 英文描述： | Monitor_ICs:88P6232 TDA4859 |
| 中文描述： | Monitor_ICs：88P6232 TDA4859 |
| 文件頁數(shù)： | 19/65頁 |
| 文件大?。?/td> | 1211K |
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4 Alignment and Adjustments
SyncMaster 753DF/755DF
4-7
4-3-2 (d) WHITE BALANCE ADJUSTMENT VERIFICATION
CONDITIONS
Scanning frequency:
Display image:
68 kHz/ 85 Hz
Back raster pattern
Full White Pattern
x = 0.283 ± 0.02,
y = 0.298 ± 0.02
Refer to 4-3-2(c)
Maximum
5 ft-L, 24 ft-L
X-Y Coordinates:
ABL Luminance
Brightness:
Contrast:
1.
Check whether the color coordinates of the
back raster satisfy the above spec.
If they do not, return to 4-3-2 (a) and readjust
all settings.
Display a full white pattern.
2.
3.
4.
5.
Select “Geometry” in softjig menu.
Select “@7: 5-ft “ in right menu.
Check whether the white coordinates of the
video meet the above coordinates spec.
Select “@8: 24-ft “ in right menu.
Check whether the white coordinates of the
video satisfies the above spec.
If they do not, return to 4-3-2 (a) and readjust
all settings.
6.
7.
Select “Color” and click “@2: CHANNEL 2”
for color ajdustment for 6500K
Repeat the sequence of 9300K adjustment.
The luminance values the same as 9300K, but
the color coordinated of back raster and white
box are : x = 0.313
± 0.02
y = 0.329
± 0.02
4-3-3 Luminance Uniformity Check
Luminance is considered uniform only if the ratio
of lowest to highest brightness areas on the screen
is not less than 7.5:10.
CONDITIONS
Scanning frequency:
68 kHz/ 85 Hz
(1024 x 768)
White flat field
Cut off point at 24 ft-L
Maximum
Display image:
Brightness:
Contrast:
PROCEDURE
Measure luminance at nine points on the display
screen (see figure below).
4-3-4 Focus Adjustment
CONDITIONS
Scanning frequency:
68 kHz/ 85 Hz
(1024 x 768)
“H” character pattern
Cut off point
Maximum
Display image:
Brightness:
Contrast:
PROCEDURE
1.
Adjust the Focus VR on the FBT to display the
sharpest image possible.
2.
Use Locktite to seal the Focus VR in position.
4-3-5 Color Purity Adjustment
Color purity is the absence of undesired color.
Conspicuous mislanding (unexpected color in a
uniform field) within the display area shall not be
visible at a distance of 50 cm from the CRT
surface.
CONDITIONS
Orientation:
Scanning frequency:
Display image:
Luminance:
Monitor facing east
68 kHz/ 85 Hz
White flat field
Cut off point at the center
of the display area
Note:
Color purity adjustments should only be
attempted by qualified personnel.
Figure 4-10. Luminance Uniformity Check Locations
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