Samsung DP17LS/LT Alignment and Adjustments, Adjustment Conditions, Before Making Adjustments

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4 Alignment and Adjustments

This section of the service manual explains how to make permanent adjustments to the monitor. Directions are given for adjustments using the monitor Interface Board Ver. 2.0 and software (Softjig).

4-1 Adjustment Conditions

Caution: Changes made without the Softjig are saved only to the user mode settings. As such, the settings are not permanently stored and may be inadvertently deleted by the user.

4-1-1 Before Making Adjustments

4-1-1 (a) ORIENTATION

When servicing, always face the monitor to the east.

4-1-1 (b) MAGNETIC FIELDS

Whenever possible, use magnetic field isolation equipment such as a Helmholtz field to surround the monitor. If a Helmholtz field is not available, frequently degauss the unit under test.

Caution: Other electrical equipment may cause external magnetic fields which may interfere with monitor performance.

Use an external degaussing coil to limit magnetic build up on the monitor. If an external degaussing coil is not available, use the internal degaussing circuit. However, do not use the internal degaussing circuit more than once per 30 minutes.

4-1-1 (c) WARM-UP TIME

The monitor must be on for 30 minutes before starting alignment. Warm-up time is especially critical in color temperature and white balance adjustments.

4-1-1 (d) SIGNAL

Analog, 0.7 Vp-p positive at 75 ohm, internal termination

Sync: Separate

(TTL level negative/positive)

4-1-1 (e) SCANNING FREQUENCY

Horizontal:

30 kHz to 70 kHz (Automatic)

Vertical:

50 Hz to 160 Hz (Automatic)

Unless otherwise specified, adjust at the 17Ó: 1024 x 768 mode (68 kHz/85 Hz), 15Ó: 800 x 600 mode (54 kHz/85 Hz) signals.

Refer to Table 2-1 on page 2-3.

.4-1-2 Required Equipment

The following equipment may be necessary for adjustment procedures:

4-1-2 (a) DISPLAY CONTROL ADJUSTMENT

1.Non-metallic (Ð) screwdriver: 1.5, 2.5, 3 mm

2.Non-metallic (+) screwdriver: 1.5, 2.5, 3 mm

3.Digital Multimeter (DMM), or Digital Voltmeter

4.Signal generator, or DM200 software

5.Software: Softjig or DM200

6.Interface Board Ver. 2.0 Code No. BH81-90001K

7.Parallel communications cable (25-pin to 25-pin); Code No. BH81-90001H

8.Signal cable (15-pin to 15-pin cable with additional 3-pin connector); Code No. BH81-90001J

9.5 V DC adapter, not supplied

10.Personal computer

Note: Softjig AssÕy (includes items 6, 7 and 9) Code No. BH81-90001L

4-1-2 (b) COLOR ADJUSTMENTS

1.All equipment listed in 4-1-2 (a), above

2.Color analyzer, or any luminance measurement equipment

DP15H*/DP17L*

4-1

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Contents Color Monitor Copyright Safety Precautions PrecautionsProduct Safety Notices Servicing the High Voltage VR and CRTElectrostatically Sensitive Devices ESD Precautions Servicing PrecautionsSpecifications Product SpecificationsSync Type Separate Pin AssignmentsIBM Vesa Timing ChartMemo Adjustment Conditions Alignment and AdjustmentsBefore Making Adjustments Required EquipmentSetup 2, Without Signal Generator Connecting the SoftJigCentering Display Control AdjustmentsStandard Modes Linearity LinearityPinbalance Adjustment Trapezoid AdjustmentParallelogram Adjustment Side Pincushion 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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