Question about LG Televison & Video

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Hi Taran_2005 - You were a great help about a month ago with my Sylvania LCD TV. I got the part and it works. I now need help with an LG 32LC2DU. I get sound but the screen shows vertical red lines. I took a photo. How will I be able to send it to you, if needed.

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  • Thomas Marino May 20, 2011

    Hi Ginko - Great information. I really appreciate it. I am not technical and would not know how to test the other boards. However, I have changed T-con boards. I would like to get more experience. Are there training courses where I can learn more about fixing TVs?

  • Thomas Marino May 20, 2011

    Oops. I left out one point on my last e-mail - The serial number ends in UE - 32LC2DU UE. There is also a product code 32LC2DU-UE.AUSULJM I don't know if the UE and UE.AUSULJM mean anything.

  • Thomas Marino May 20, 2011

    Thank you. You have been excellent.

  • Thomas Marino May 20, 2011

    Ginko was excellent. He provided alot of details the first time with relevant links. I highly recommend him.

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  • LG Master
  • 19,396 Answers

Hi.

There is no need for picture.

This is an LCD TV not a plasma. Vertical lines mean either defective controller board, the T-Controller is defective or defective LCD display.

Most of the time the problem is the T-Con board. The T-Con board synchronizes the picture sent to display and cannot be tested test (even the tech does not test it).

The only fault not worth repairing is faulty display, and faulty LCD resulting in lines is not common.

The T-Con is $39. I would take the risk and replace the T-Con. Here the part: LG Philips 6871L-0821A T-Con Board.

The 32LC2DU has two different main board solutions, depending on the letter after U you may have a separate signal board with connectors (UD ending model) If you are a technician you can summarily test the boards below before replacing the T-Con. Testing is done following voltages on diagnostic points. Use the schematics in service manual. Here service manual: 32LC2DU Service:

Here main board. It may need testing in case the culprit is not T-Con:

UD ending model only:

LG 68719ST916A Signal Board
LG 39119M0080A Main Unit

or

Other 32LC2DU models:

LG EBR32681401 Main Unit

Posted on May 20, 2011

  • Ginko
    Ginko May 20, 2011

    Hi.

    The product code function is for commercial and distribution use. The technician is more interested in the model number, that allow us to identify parts and model.
    The product code represents information like year of production, type of apparatus, screen size, location of assemblage etc. The product code meaning is different depending on manufacturer.

    About repairing electronics, I am now an engineer studying toward a master in electromechanics. I started studying a generic technical diploma at college, and a more specific electronic repair via distance learning. The distance learning I did was something similar to what Penn Foster offers today. If you want to learn electronic repairs to build a career or to build up a solid knowledge and experience, I suggest selecting between the distance courses listed here.
    There are also packages that send you a couple of CDs with collection of training manuals and service manuals, plus some general coursebook (Here an example).Those 'courses' can only give you an idea of how repair is done. It won't teach you how to repair TVs. A good course to give you an idea of how to repair TVs will last no less than one year and will include practical activities.

  • Ginko
    Ginko May 20, 2011

    Hi.

    You are welcome.

    All the best.

    Ginko

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