Samsung DP17LS/LT, DP15HS/HT manual HDeflection Failure, Correction Failure

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5-1-3 H_Deflection Failure

3Does PWM output signal appear

at Pin 6 (H_out) of IC401?

Yes

4Does Horizontal paluse signal appear at at Pin 8 of IC401?

Yes

Does 110 Vp-p signal appear

at Collector of Q403?

Check Q402, Q404, T401.

Does DC 12V appear at

Pin 10 of IC401?

Yes

Check IC401.

Check Q443.

5 Troubleshooting

Check 12 V line.

WAVEFORMS

32.00 V (IC401, #6)

CH1 P-P = 2.00V

CH1 RMS = 5.868V

41.00V (IC401, #8)

CH1 P-P = 1.00V

CH1 RMS = 1.298V

520.0 V (Q403, Collector)

7-1-4 S Correction Failure

Check S1 ~ S3 signal.

S1~S3 signals are right at each	No
frequency block?

Yes

Check and replace Q404, Q409, Q410,

Q414, Q415, Q416

Check and replace IC201.

CH1 P-P = 20.0 V CH1 RMS = 46.80V

DP15H*/DP17L*

5-3

Image 19

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 Coordinates Temperature Color AdjustmentsColor Adjustments for 9300K Color Purity Adjustment Focus AdjustmentLuminance Uniformity Check For trained and experienced service technicians only Parts Level Troubleshooting TroubleshootingNo Power Supply Dpms Failure Correction Failure HDeflection FailureInvariable HSize HLin. FailureAbnormal HSize Para. or Pin Balance Failure Side Pin or Trap 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 FailureNo Picture General TroubleshootingShut 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.