5-1-13 High Voltage Failure

No

3IC401 Pin 6 OSC pulse exists?

Yes

No

10 Q402 Gate driving pulse exists?

Yes

No

11Q402 Drain pulse exists?

Yes

Done

Check and replace IC401

and +12 V line.

Check and replace Q401.

Check and replace Q403,

L402.

5 Troubleshooting

WAVEFORMS

32.00 V (IC401, #6)

CH1 P-P = 2.00 V CH1 RMS = 5.868 V

11 2.00 V (Q402, Gate)

CH1 P-P = 2.00 V CH1 RMS = 7.692V

11 50.0 V (Q402, Drain)

5-1-14 ABL Failure

Input full white pattern to monitor.

 

 

 

 

 

 

 

 

 

Yes

 

 

 

 

 

 

 

 

IC101 Pin 12 input exists and

 

 

 

 

 

 

 

 

varies with different patterns?

 

 

 

 

 

 

No

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Check CN102.

 

 

 

 

 

 

 

 

 

 

 

 

 

No

 

 

 

 

 

 

 

 

 

No

 

 

T501 Pin 8 output exists?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No

 

 

IC201 Pin 26 output exists and

 

 

 

 

 

 

 

 

varies with different patterns?

 

 

 

 

 

 

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Done

 

 

 

 

 

 

 

 

 

 

 

 

Check and replace IC101.

Check and replace T501.

Check and replace IC201.

CH1 P-P = 50.0 V CH1 RMS = 73.7V

DP15H*/DP17L*

5-7

Page 23
Image 23
Samsung DP17LS/LT, DP15HS/HT manual High Voltage Failure, ABL Failure

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.

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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.