Changhong LCD32350R no display

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  • yobbgsm
    Senior Member
    • May 2017
    • 63
    • USA

    #1

    Changhong LCD32350R no display

    Hi Mates,

    Here I am again, soliciting your knowledge in electronics. So I am new in LED/LCD repair but I found it interesting, it was so fascinating how it works and how circuits travel to turn on the TV

    This Changhong LCD TV 32' has no power when arrived. I troubleshot the circuit and found out two mosfet is causing the fuse to blow. So I replaced the mosfet and the fuse, I t got power with standby mode then green on lights but no display, I think there is still something wrong with the couple of components but I have a limited know-how yet how to trace and fix the circuit.

    I have here attached the power supply, measuring the DC part of it, I have no voltage in two 5V and two 12V, that is going to the mainboard. I know that's the issue I just don't know what component is responsible to provide the voltage. Your help is very much appreciated.
    Attached Files
  • yobbgsm
    Senior Member
    • May 2017
    • 63
    • USA

    #2
    Re: Changhong LCD32350R no display

    hi guys,

    JUST AN UPDATE. I found something strange on this components attach. Looks deformed and damaged. I think I found the culprit but don't know where to get the parts.
    Attached Files

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    • attainteddragon
      Badcaps Veteran
      • Apr 2013
      • 764
      • australia

      #3
      Re: Changhong LCD32350R no display

      that might be a hard one to work out, unless someone has one around at the moment.

      http://www.buyqual.com/mip329fl-megm...29fl-lips.html
      WHY CAN'T PHILIPS USE PHILLIPS HEAD SCREWS?

      Comment

      • R_J
        Badcaps Legend
        • Jun 2012
        • 9535
        • Canada

        #4
        Re: Changhong LCD32350R no display

        I think u4 & maybe u3 are also damaged, along with q23 R84a and I doubt the optocoupler survived

        Comment

        • zEAn07
          New Member
          • Mar 2019
          • 1
          • Philippines

          #5
          Re: Changhong LCD32350R no display

          Good day sir,do you have a bin file of changhong lcd32350R,..
          Thanks for advance...

          Comment

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