Recaped LG w1952tq lcd monitor buzz in standby

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  • pr0cess0r
    Senior Member
    • Jan 2011
    • 110
    #1

    Recaped LG w1952tq lcd monitor buzz in standby

    Hi i recaped a LG w1952tq lcd monitor and now it buzz in standby mode can it be the capacitor ? they are smaller but the same value i buy them at a local store and dont know at all it they are any good..

    replaced Su'scon
    470 uF 35v
    SG105 C
    0815(m)

    by

    hitano (bad brand ?)
    470 uF 35V
    ecr
    vent 8l20

    i dont know yet how to know capacitor series and how to choose good replacement.

    i fixed my samsung monitor with panasonic caps that where same spec and size and have no trouble!

    thx for helping me
    Tags: None
    • retiredcaps
      Badcaps Legend
      • Apr 2010
      • 9271
      #2
      Re: Recaped LG w1952tq lcd monitor buzz in standby

      Originally posted by pr0cess0r
      i fixed my samsung monitor with panasonic caps that where same spec and size and have no trouble!
      Panasonic FR, FM, and FC are high quality low ESR caps. The SMPS requires low ESR caps. I don't know anything about Hitano.

      A list of recommended capacitors can be found at the FAQ

      https://www.badcaps.net/forum/showthread.php?t=2280
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        Comment

        • pr0cess0r
          Senior Member
          • Jan 2011
          • 110
          #3
          Re: Recaped LG w1952tq lcd monitor buzz in standby

          do you think that replacing those hitano with bettre caps like panasonic will fix the high pitch sound in standby ? and is there a good place in montreal to get quality caps ?

            Comment

            • retiredcaps
              Badcaps Legend
              • Apr 2010
              • 9271
              #4
              Re: Recaped LG w1952tq lcd monitor buzz in standby

              Originally posted by pr0cess0r
              do you think that replacing those hitano with bettre caps like panasonic will fix the high pitch sound in standby ? and is there a good place in montreal to get quality caps ?
              I can't guarantee anything, but in at least one ATX power supply, there was a constant high pitched whine. Once I replaced that cap (it was a small 22uF 50V next to the SMPS transformer), the whine went away.

              Not familiar with distributors in Montreal, but techno* on ebay.ca is located in Canada and sells Panasonic caps. His shipping costs are $3.00 and you can email to ask if he has the caps you need?
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                Comment

                • retiredcaps
                  Badcaps Legend
                  • Apr 2010
                  • 9271
                  #5
                  Re: Recaped LG w1952tq lcd monitor buzz in standby

                  As a test, you can always put back the old cap (the small one next to the SMPS) and see if the whine goes away. Was the buzz there with the old caps?
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                    Comment

                    • pr0cess0r
                      Senior Member
                      • Jan 2011
                      • 110
                      #6
                      Re: Recaped LG w1952tq lcd monitor buzz in standby

                      i replaced 5 caps before the screen whas not turning on at all.. im new to all this and try to learn electronic now! Im moe into computer but i see so much bad caps now i want to fix those parts not just replace them! 3 monitor fixed and im waiting caps for another one! Its crazy how much stuff can be defective because of some bad caps.

                        Comment

                        • retiredcaps
                          Badcaps Legend
                          • Apr 2010
                          • 9271
                          #7
                          Re: Recaped LG w1952tq lcd monitor buzz in standby

                          This thread is somewhat related. It talks about the cap causing a whine. Details at

                          https://www.badcaps.net/forum/showthread.php?p=80126
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                            Comment

                            • pr0cess0r
                              Senior Member
                              • Jan 2011
                              • 110
                              #8
                              Re: Recaped LG w1952tq lcd monitor buzz in standby

                              thx

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