Samsung DP17LS/LT manual Luminance Uniformity Check, Focus Adjustment, Color Purity Adjustment

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4-3-2 (d) WHITE BALANCE ADJUSTMENT VERIFICATION

CONDITIONS

 

Scanning frequency:

68 kHz/85 Hz (17Ó)

 

54 kHz/85 Hz (15Ó)

Display image:

Back raster pattern

 

Full White Pattern

X-Y Coordinates:

x = 0.283 ± 0.02,

 

y = 0.298 ± 0.02

ABL Luminance

Refer to 4-3-2(c)

Brightness:

Maximum

Contrast:

5 ft-L, 24 ft-L

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.

2.Display a full white pattern.

3.Select ÒGeometryÓ in softjig menu.

4.Select Ò@7: 5-ft Ò in right menu.

5.Check whether the white coordinates of the video meet the above coordinates spec.

6.Select Ò@8: 24-ft Ò in right menu.

7.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.

Select ÒColorÓ and click Ò@2: CHANNEL 2Ó 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 (17Ó)

 

54 kHz/85 Hz (15Ó)

 

(1024 x 768)

Display image:

White flat field

Brightness:

Cut off point at 24 ft-L

Contrast:

Maximum

4 Alignment and Adjustments

PROCEDURE

Measure luminance at nine points on the display screen (see figure below).

Figure 4-10. Luminance Uniformity Check Locations

4-3-4 Focus Adjustment

CONDITIONS

 

Scanning frequency:

68 kHz/85 Hz (17Ó)

 

54 kHz/85 Hz (15Ó)

 

(1024 x 768)

Display image:

ÒHÓ character pattern

Brightness:

Cut off point

Contrast:

Maximum

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:

Monitor facing east

Scanning frequency:

68 kHz/85 Hz (17Ó)

 

54 kHz/85 Hz (15Ó)

Display image:

White flat field

Luminance:

Cut off point at the center

 

of the display area

Note: Color purity adjustments should only be attempted by qualified personnel.

DP15H*/DP17L*

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Contents Color Monitor Copyright Servicing the High Voltage VR and CRT PrecautionsSafety Precautions Product Safety NoticesElectrostatically Sensitive Devices ESD Precautions Servicing PrecautionsSpecifications Product SpecificationsSync Type Separate Pin AssignmentsIBM Vesa Timing ChartMemo Required Equipment Alignment and AdjustmentsAdjustment Conditions Before Making AdjustmentsSetup 2, Without Signal Generator Connecting the SoftJigCentering Display Control AdjustmentsStandard Modes Linearity LinearitySide Pincushion Adjustment Trapezoid AdjustmentPinbalance Adjustment Parallelogram AdjustmentColor Adjustments Color Coordinates TemperatureColor Adjustments for 9300K Focus Adjustment Color Purity AdjustmentLuminance Uniformity Check For trained and experienced service technicians only Troubleshooting Parts Level TroubleshootingNo Power Supply Dpms Failure Correction Failure HDeflection FailureHLin. Failure Invariable HSizeAbnormal HSize Side Pin or Trap Failure Para. or Pin Balance FailureTilt Failure Size or Pos. Variation Failure Deflection FailureABL Failure High Voltage FailureDynamic Focus Failure No Video Micom Failure OSD Failure Degaussing Failure User Control FailureGeneral Troubleshooting No PictureShut Down Missing Color Visible Retrace Unsynchronized Image Misconvergence Purity Failure Poor FocusDP15HS Exploded View and Parts ListDP17LS 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 Main PCB Parts Electrical Parts ListLoc. 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 AA,3.5x1.0x5.7mm,1500 Video PCB PartsLJP1 VID VID+H/S Others Different Parts List CDT Memo Block Block Diagrams Main PCB Wiring DiagramSmps Part Schematic Diagram Schematic DiagramsSchematic 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

DP15HS/HT, DP17LS/LT specifications

The Samsung DP17LS/LT and DP15HS/HT are modern digital displays designed for commercial and professional use, showcasing cutting-edge technology and versatile features that cater to a variety of applications. These models are part of Samsung’s commitment to innovation in display solutions, offering impressively vivid visuals and reliable performance.

One of the standout features of the DP17LS/LT and DP15HS/HT is their high-resolution display capabilities. The panels are engineered to deliver sharp and detailed images, making them ideal for advertising, information kiosks, and interactive displays. With a brightness level that exceeds industry standards, these models ensure visibility even in brightly lit environments, allowing content to stand out and capture attention effectively.

Both the DP17LS/LT and DP15HS/HT models are equipped with advanced LED technology, which not only enhances color accuracy and contrast but also provides energy efficiency. This makes them a sustainable choice for businesses looking to minimize their ecological footprint while maximizing visual impact. Moreover, the ultra-narrow bezels of these displays allow for a seamless multi-display setup, enabling businesses to create an immersive visual experience.

Another prominent characteristic is their user-friendly interface and connectivity options. The displays support multiple input types, including HDMI, DisplayPort, and USB, ensuring compatibility with a wide range of devices and systems. This versatility simplifies integration into existing setups and allows for easy content management.

The DP17LS/LT and DP15HS/HT models also incorporate advanced cooling technology to maintain optimal performance during extended operation, minimizing the risks of overheating. This is particularly crucial for environments where displays are running continuously, such as retail stores and transportation hubs.

Furthermore, Samsung’s commitment to durability and longevity is evident in the design of these displays. Built with high-quality materials, they are resistant to wear and tear, ensuring that they remain operational even in high-traffic areas.

In conclusion, the Samsung DP17LS/LT and DP15HS/HT displays stand out as reliable solutions for businesses seeking high performance, vibrant visuals, and robust features. Their combination of cutting-edge technology and practical design makes them an excellent choice for a variety of commercial applications, where quality and efficiency are paramount.
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