Samsung DP15HS/HT, DP17LS/LT manual Missing Color

Page 30

5 Troubleshooting

5-2-3 Missing Color

Are proper Video levels

on CN101 (D-Sub) Pins 1, 3 and 5?

Yes

Are proper Video signal on all

22

cathodes?

Yes

Are proper DC voltage on all

cathodes?

Yes

Is G2 voltage right?

Yes

Is Heater voltage right?

Yes

Is G1 voltage right?

Yes

Replace CRT.

Yes

Done

No

No

No

No

No

No

Check signal generator.

Refer to 5-1-16 No Video.

Check IC101 Pins 15, 16 and 17.

Check QR01, QR02, QG01, QG02,

QB01 and QB02.

Check D502, D503, Q501.

Check D608, Q604, T601.

Check D504, Q602, T501.

WAVEFORMS

22 10.0 V (R,G,B, Video)

CH1 P-P = 10.0V

CH1 RMS = 17.02V

5-14

DP15H*/DP17L*

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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 EquipmentConnecting the SoftJig Setup 2, Without Signal GeneratorDisplay Control Adjustments CenteringLinearity Standard Modes LinearityParallelogram Adjustment Trapezoid AdjustmentPinbalance 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 HDeflection Failure Correction FailureHLin. Failure Invariable HSizeAbnormal HSize Side Pin or Trap Failure Para. or Pin Balance FailureTilt Failure Deflection Failure Size or Pos. Variation FailureHigh Voltage Failure ABL FailureDynamic Focus Failure No Video Micom Failure OSD Failure User Control Failure Degaussing FailureGeneral Troubleshooting No PictureShut Down 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

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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