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Samsung SyncMaster 15GLi Service Manual page 26

Color monitor

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6 Alignments and Adjustments
6-5 Color Adjustments
Note: To make color adjustments you must have
one of the following configurations:
1. Micom Control Jig and Signal Generator.
or
2.
Micom Control Jig and Computer and
Samsung DM 200 software or DisplayMate for
Windows software from Sonera Technologies.
Before making adjustments check that the video
signals are as follows:
Video : Analog 0.714 Vp-p (at 75 Q terminated).
Sync : Synchronizing: Separate TTL level.
Unless otherwise specified, use VGA
signals (37 kHz/75 Hz) for the
adjustments.
,
6-5-1 Color Adjustments for 9300°K
6-5-1 (a) Adjustment of the Back Raster Color
(37 kHz/75 Hz, Back raster pattern)
1. Turn the contrast and the brightness
controls fully clockwise (Maximum
condition).
2. Adjust the screen VR of the FBT so that the
brightness of back raster is 0.3 to 0.5 ft-L
(Typically 0.4 ft-L).
3. Press button 8 to download the standard
color data (channei i) from the micom jig.
(For 9300° K color adjustment:
x = 0.283+40.02, y = 0.298+0.02.
For 6500° K color adjustments see section
6-5-2 "Color Adjustment for 6500° K."
4. Press buttons 26 and 27 and set the "y"
coordinate to 0.298+0.02.
5. Press buttons 16 and 17 and set the "x"
coordinate to 0.283+0.02.
Note: If the above adjustments cannot be
done to each coordinate, press buttons 21
and 22 and repeat procedures 4 and 5.
6. After the adjustments are done, press
button 5 to save the data.
6-6
6-5-1 (b) Video Gain Adjustment
(37 kHz/75 Hz, Green box pattern)
1. Display the green window pattern using a
range for which the ACL Circuit is not
active (within ranges 1/3 to 1/2H and 1/3
to 1/2V).
Front Bezel Opening
Back Raster
Green Window
6-1. Green Box Pattern
2. Turn the contrast and the brightness
controls fully clockwise.
3. Press buttons 6 and 7 (G-Gain control) so
that the brightness of the green gain is 42+1
ft-L. (Typically 42 ft-L)
Note: If you can't increase the green gain to
the appropriate value, press button 3 to
increase the ACL point.
6-5-1 (c} White Balance Adjustment
(37 kHz/75 Hz, Full white Pattern)
Front Bezel Opening
Back Raster
White Window
Figure 6-2. Full White Pattern
1. Turn the contrast and the brightness
controls fully clockwise.
Samsung Electronics SyncMaster 15GLi

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