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Shutdown Problem In Samsung LCD Monitor

By on July 1, 2011

The complaint was display shutdown in few seconds after the LCD Monitor is turned on. The power LED is still on and have green colour and you could only see a dark picture. If one could see a dark/faint picture this mean that the problem is in the inverter board or one of the backlight have problem. It can’t be the MCU fault because all other functions was working. Upon inspection found one of the high voltage transformer was burnt-please the pictures below. For your information this Monitor was repaired by Mr Akif who had bought my LCD Monitor repair ebook. The photos was provided by him.

burnt lcd monitor transformer

burn lcd monitor high voltage transformer

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4 Comments

  1. Rafiq

    July 4, 2011 at 10:54 pm

    So right now do you have to modify the coil to make a new transformer or just replace the faulty unit? Do they sell this spare part in the market?

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  2. admin

    July 5, 2011 at 3:26 am

    HI Rafiq,

    It is difficult to rewind such a coil because the wire is too tiny and the diameter of the wire is smaller or same as our hair. Try contact Luca at info@lavinci.it to check for the part.

    Jestine

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  3. Shannon

    August 4, 2012 at 7:23 pm

    Hi, I have the same monitor as the last poster with the same symptoms but when I pulled the power supply board out, there is a distinct over heat mark on the PCB directly under a 5 pin component, probably a voltage regulator. Is the the voltage regulator likely or should I desolder the transformer to look for burnt windings?
     
    THanks for setting me in the right direction.
     

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    • Jestine Yong

      August 4, 2012 at 10:00 pm

      Hi Shannon,

      What is the complaint of the Monitor? If the 5 pins components located in the primary side then it is a power ic.

      Jestine

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