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Acer v203HV turns pink to white display

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    Acer v203HV turns pink to white display

    Hi forum friends,

    This Acer v203HV lcd monitor has been working normal for more than 5 years until yesterday. When i switched on, the normal Acer logo appears but after less than 1 minute, the display turns pink hue( image 090232),shortly it becomes white (image 090246). So i opened up the monitor case, checked the main board and scalar board (image 091912).
    Nothing burned, no cold solder, the fuse and diode all checked good, even capacitors with low esr 0.00 off the board.

    Also checked the tcon board, and found nothing peculiar. Has anyone experienced this before or has any suggestion on what to check next? Kindly offer your help to save this monitor. Thank you in advance.
    Attached Files

    #2
    Re: Acer v203HV turns pink to white display

    Hi!
    How many volts on the board t-con at the point 5V1 ?

    Comment


      #3
      Re: Acer v203HV turns pink to white display

      Definitely older than 5 years old, can tell by the font of the Acer logo.
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        #4
        Re: Acer v203HV turns pink to white display

        Originally posted by kasfamily View Post
        Hi!
        How many volts on the board t-con at the point 5V1 ?
        Got 5vdc at the point 5V1 on the tcon board.

        Appreciate your help to diagnose this monitor . Hopefully it will return to its full working condition from your step by step instruction.

        Comment


          #5
          Re: Acer v203HV turns pink to white display

          Measure the voltage t-con board at all points marked V ( for example VGH, V33 and rest). Make a table.

          Comment


            #6
            Re: Acer v203HV turns pink to white display

            Originally posted by kasfamily View Post
            Measure the voltage t-con board at all points marked V ( for example VGH, V33 and rest). Make a table.
            Attached the table as you requested.
            Attached Files

            Comment


              #7
              Re: Acer v203HV turns pink to white display

              Add a photo of the matrix sticker (model type)

              Comment


                #8
                Re: Acer v203HV turns pink to white display

                Originally posted by kasfamily View Post
                Add a photo of the matrix sticker (model type)
                Attached a photo of the matrix sticker (img 093038) and display model (img 093112).
                Kindly request if you need any other photo for reference.
                Attached Files

                Comment


                  #9
                  Re: Acer v203HV turns pink to white display

                  In the red circle for example
                  Attached Files

                  Comment


                    #10
                    Re: Acer v203HV turns pink to white display

                    Originally posted by kasfamily View Post
                    In the red circle for example
                    Attached the matrix sticker (display sticker). Sorry i misunderstood your request.
                    Appreciate your patience to guide me.
                    Attached Files

                    Comment


                      #11
                      Re: Acer v203HV turns pink to white display

                      Originally posted by kasfamily View Post
                      Measure the voltage t-con board at all points marked V ( for example VGH, V33 and rest). Make a table.
                      Hi,
                      Have you seen the table and conclude anything from all the voltage reading?
                      Looking forward to your kind assistance.

                      Comment


                        #12
                        Re: Acer v203HV turns pink to white display

                        Hi forum friends,

                        Is there any chance of reviving this Acer monitor to working condition?
                        Anyone?

                        Comment


                          #13
                          Re: Acer v203HV turns pink to white display

                          The problem sounds like a faulty matrix board. Perhaps some element under voltage is changing its parameters, I would check the elements on the board by heating or cooling locally. You may be able to find a faulty one.

                          Comment

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