Samsung DP15HS/HT, DP17LS/LT manual Color Coordinates Temperature, Color Adjustments for 9300K

Page 14

4 Alignment and Adjustments

4-3 Color Adjustments

CAUTION:Check below condition before color adjustment

Video signal : Analog 0.7 Vp-p (at 75 Ω )

Sync : TTL level (H, V seperate signal)

* Select ÒColorÓ in Softjig menu for color adjustment.

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

4-3-2 (b) WHITE BALANCE ADJUSTMENT CONDITIONS

Scanning frequency:

68 kHz/85 Hz (17Ó)

 

54 kHz/85 Hz (15Ó)

Display image:

White box pattern

Brightness:

0.06ft-L at Back Raster

 

Pattern Display

Contrast:

Maximum

 

1/3H-1/2H

 

FRONT BEZEL OPENING

1/3V-1/2V

BACK RASTER

 

 

WHITE WINDOW

Measurement instrument: Color analyzer

Scanning frequency: 68 kHz/85 Hz (17Ó) 54 kHz/85 Hz (15Ó)

Display image: White flat field at center of display area

Luminance: Maximum

PROCEDURE

Use the directions in sections 4-3-2 through 4-3-3 to adjust the color coordinates for:

9300K to x = 0.283 ± 0.02,

y = 0.298 ± 0.02

6500K to x = 0.313 ± 0.02,

y = 0.329 ± 0.02

4-3-2 Color Adjustments for 9300K

4-3-2 (a) BACK RASTER COLOR ADJUSTMENT

CONDITIONS

 

Scanning frequency:

68 kHz/85 Hz (17Ó)

 

54 kHz/85 Hz (15Ó)

Display image:

Back raster pattern

Brightness:

Maximum

Contrast:

Maximum

1.Select Ò@1: CHANNEL 1Ó in right menu to control the color for 9300K.

2.Adjust the luminance of the back raster to between 0.5 to 0.7 ft-L using contron bar after selecting ÒGREEN CUTOFFÓ in the menu.

3.Use control bar after selecting ÒBLUE CUTOFFÓ in left menu to set the ÒyÓ coordinate to 0.298 ± 0.02.

4.Use control bar after selecting ÒRED CUTOFFÓ in left menu to 0.283 ± 0.02.

*If color values would not be matched desirable values, repeat sequence 3 and 4 after readjusting ÒGREEN CUTOFFÓ control a little different.

Figure 4-8. White Box Pattern

1.Use control bar after selecting ÒRED GAINÓ, ÒGREEN GAINÓ and ÒBLUE GAINÓ to adjust the luminance to 45 ft-L (15Ó) and 46 ft-L (17Ó) with the color coordinates ranged for 9300K to x = 0.283 ± 0.02, y = 0.298 ± 0.02.

exception) 17Ó SDD CRT type-named (*/S-2) : 42ft-L.

4-3-2 (c) ABL ADJUSTMENT

 

 

 

 

CONDITIONS

 

 

 

 

Scanning frequency:

68 kHz/85 Hz (17Ó)

 

 

 

 

 

 

 

54 kHz/85 Hz (15Ó)

Display image:

Full white pattern

Brightness:

Maximum

Contrast:

Maximum

 

 

 

 

 

 

 

 

 

 

FRONT BEZEL OPENING

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BACK RASTER

 

 

 

 

 

 

 

 

 

 

WHITE WINDOW

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 4-9. Full White Pattern

1.Check the ABL. If it is not within the specifications, use the ABL controls to adjust it. (15Ó: 33 ± 1 ft-L, 17Ó: 36 ± 1 ft-L )

2.Select Ò@4: COLOR SAVEÓ to save the data.

3.Select Ò@6: ALL COLOR SAVEÓ to save the CH2.

4-6

DP15H*/DP17L*

Image 14 Contents
Color Monitor Copyright Product Safety Notices PrecautionsSafety Precautions Servicing the High Voltage VR and CRTServicing Precautions Electrostatically Sensitive Devices ESD PrecautionsProduct Specifications SpecificationsPin Assignments Sync Type SeparateTiming Chart IBM VesaMemo Before Making Adjustments Alignment and AdjustmentsAdjustment Conditions Required Equipment Connecting the SoftJig Setup 2, Without Signal GeneratorDisplay Control Adjustments CenteringLinearity Standard Modes LinearityParallelogram Adjustment Trapezoid AdjustmentPinbalance Adjustment Side Pincushion AdjustmentColor Adjustments for 9300K Color AdjustmentsColor Coordinates Temperature Luminance Uniformity Check Focus AdjustmentColor Purity Adjustment For trained and experienced service technicians only No Power Supply TroubleshootingParts Level Troubleshooting Dpms Failure HDeflection Failure Correction FailureAbnormal HSize HLin. FailureInvariable HSize Tilt Failure Side Pin or Trap FailurePara. or Pin Balance Failure Deflection Failure Size or Pos. Variation FailureHigh Voltage Failure ABL FailureDynamic Focus Failure No Video Micom Failure OSD Failure User Control Failure Degaussing FailureShut Down General TroubleshootingNo Picture Missing Color Visible Retrace Unsynchronized Image Misconvergence Poor Focus Purity FailureExploded View and Parts List DP15HSDP17LS Front Cover & CRT Ass’y DP15HS Chassis & Stand Ass’y DP15HS Rear Cover Ass’y DP15HS Front Cover & CRT Ass’y DP17LS Chassis & Stand Ass’y DP17LS Rear Cover Ass’y DP17LS Electrical Parts List Main PCB PartsLoc. No CIS FBT FH1 Fuse ASSY,HEAT/SINK Carbon Metal Carbons Carbon Carbons Carbon Carbons Metal Carbon Fusible Carbons 17 ! 15 ! 17 ! 15 ! 17 ! 15 ! 17 Video PCB Parts AA,3.5x1.0x5.7mm,1500LJP1 VID VID+H/S Others Different Parts List CDT Memo Block Block Diagrams Wiring Diagram Main PCBSchematic Diagrams Smps Part Schematic DiagramSchematic Diagrams Micom Part Schematic Diagram DP15H*/DP17L 10-4 10-3 H/V OSC & Vertical Part Schematic Diagram DP15H*/DP17L 10-6 Deflection Part Schematic Diagram DP15H*/DP17L 10-8 Video Part Schematic Diagram DP15H*/DP17L 10-10 10-11 DP15H*/DP17L Code No. BH68-00129A