Question about Samsung Televison & Video

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Hy i have samsung ue40d5003bw and half of display (up) is horisontal lines with picture and half of the diplay (down) is clear picture.

Willing to send a picture of problem if there is any chance to repair it.

Posted by Dario Somodi on

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Sometime Mechanic

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  • 122 Answers

Samsung uses a power board with one capacitor. (Ignore the video and input boards.) Check high voltage across the capacitor - should be 390 to 400 volts DC. If not the capacitor needs to be changed. Samsung uses 100 uf rated at 450 volts. I replaced it with 370 uf rated at 400 volts. (Did not have a 450 volts lying around.)

Posted on Nov 25, 2017

Testimonial: "TCON card is broken"

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Anonymous

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SOURCE: Flat panel displays half screen, mirrored on bottom half of screen

Have several problems with either a bad LVDS cable from Main unit to the LCD controll bd. Sometimes the cable is just not connected properly. If you reseat this cable and the problem still exists you most likely have a bad LCD control bd.

Posted on Feb 03, 2008

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Mergatroid

  • 286 Answers

SOURCE: Picture full of lines and flicker

Zdenko did an excellent job. Voltage regulators and the capacitors on the main boards and in the power supplies are always suspect. Some times you can narrow down the culprit buy purchasing a can of freeze spray. Let the TV warm up and try freezing suspect components to see if this causes a reaction. Thermal problems can often be found in this way.
Of course, if you're not able or willing to replace components on the circuit boards, you can always replace the main board or power supply board after determining which is causing the problem. These parts should be available at your local Viewsonic service provider at a reasonable price.

Posted on Feb 14, 2008

Anonymous

SOURCE: How to fix horisontal lines on display ( see the picture)?

I would like for you to tell me why my email message is on the right side of the screen with blue lines a white and yellow on the left. I do not have horizontal arror bar at the bottom to adjust the screen.

Posted on Feb 15, 2008

Anonymous

  • 7 Answers

SOURCE: black ink does not print full words, misses bottom

maybe the jets are a little blocked up?

Posted on Oct 15, 2009

Anonymous

  • 1099 Answers

SOURCE: I have a 5 yr old Samsung HP-R5012 Plasma Display

Hello,

All plasma an lcd TV have boards that control vertical and horizontal output to their respective areas. They are connected to the screen by ribbon cables. If one of these boards fails all together, has a failed chip, a bad connection, or a bad ground somewhere it will result in a black line in the area of that board. A bad ribbon cable connection on the bottom will result in a vertical black bar though the screen. Many times resetting the connection will fix it, if the ribbon cable has been nicked there could be a severed connection. They an sometimes be fixed, but it is a pain. An yes I have done it, but the bar is gone. The same will happen if the chip that outputs to that area opens. The connectors are the first place to look paying close attention to the cable, they are extremely delicate so great care must be taken if you decide to tinker with em, the usually have lift locks that release them, but it is very easy to wreck em.

Good luck.



Posted on Aug 11, 2010

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