Magnavox lcd tv capacitor help!!

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  • rushgsxr
    New Member
    • Oct 2012
    • 5
    • United state
    #1

    Magnavox lcd tv capacitor help!!

    First off, I hope this is in the correct place in the forum. My apologies if not.

    Secondly, I was recently given a 37 in Magnavox LCD tv. Manufactured in 2006, model number 37mf331d. The previous owner was complaining sometimes it took a long time to start up and just bought a new tv and gave this one to me. So after some research I found that capacitors in the PSU often go bad, causing the issue. When I ripped it apart, sure enough a couple caps were bad. Venting out the top. So I'm hoping I can just replace them and have myself a nice tv for the basement. What I need your assistance for is finding the correct replacement capacitors.

    There's 2 CapXon that are bad, and 2 that I figure I will just replace, because I hear they're not the best and will go bad sooner of later. The first one is a 1200 uF 35V (105 degrees C) P616. Not sure what the last number is, but maybe its useful. The 2nd is a 2200 uF 25V (105 degrees C) P608. And the last 2 are 1000uF 35V (105 degress C) P620.

    I looked all over, but there's so many choices I have no idea where to start. If you need any more information let me know. Any help would be appreciated. Thanks!!

    Sam
    Tags: None
    • Agent24
      I see dead caps
      • Oct 2007
      • 4951
      • New Zealand
      #2
      Re: Magnavox lcd tv capacitor help!!

      First of all you need some more information, specifically the series of capacitor. Then you can look up ESR.

      The capacitors should have on them a two-letter (sometimes three letter) code, this is the series designator.

      Then, you can look up the series. For your CapXon that would be here: http://www.capxongroup.com/en/prod_all_cat_full.aspx and determine the ESR and ripple handling.

      After that, find replacements from a reputable brand which meet the specifications.

      ESR should be same but usually there are no problems if it is slightly lower.
      Ripple and Voltage should be the same or higher, Capacitance you should generally leave as is.
      "Tantalum for the brave, Solid Aluminium for the wise, Wet Electrolytic for the adventurous"
      -David VanHorn

        Comment

        • mariushm
          Badcaps Legend
          • May 2011
          • 3799
          #3
          Re: Magnavox lcd tv capacitor help!!

          If you can, post pictures please, as clear as possible. Use macro mode if needed.

          There may be other capacitors which are bad but you may not have noticed them.

          For example there may be a capacitor that's small in value, something like 10uF - 47uF which is too small to bloat but quite often goes bad in power supplies.

          If you write down what's written on those capacitors (besides the uF and voltage value) we may suggest more suitable capacitors instead of a "template", safe answer.
          Oh, and diameter and height of the old capacitors is important, if there is little room around them to insert larger or taller capacitors.

          It's possible to determine diameter and height if it happens to be a common manufacturer and series and we have datasheet, but you have to say what's written on them

            Comment

            • rushgsxr
              New Member
              • Oct 2012
              • 5
              • United state
              #4
              Re: Magnavox lcd tv capacitor help!!

              Couldn't get the best pictures but hopefully you'll see enough. I found a 2 digit code on them, LZ. The 1200uF 35V capacitor has a diameter of 13mm and height of 32mm.

              The 2200 uF 25V has diameter of 13mm and height of 25mm.

              The 2 1000 uF 35V capacitors have a diameter of 13mm and height of 25mm.

              Any other specs you need? Thanks!



              images


              online photo sharing


              online photo sharing

                Comment

                • Agent24
                  I see dead caps
                  • Oct 2007
                  • 4951
                  • New Zealand
                  #5
                  Re: Magnavox lcd tv capacitor help!!

                  Datasheet is here but not all your values are listed. Probably they are non-standard.

                  If you have non-standard values the trick is to match the case size to determine approximate ESR and RCR.

                  In all cases for your listed measurements the ESR is about 0.015 Ohm and RCR 2800mA.
                  "Tantalum for the brave, Solid Aluminium for the wise, Wet Electrolytic for the adventurous"
                  -David VanHorn

                    Comment

                    • rushgsxr
                      New Member
                      • Oct 2012
                      • 5
                      • United state
                      #6
                      Re: Magnavox lcd tv capacitor help!!

                      The case sizes aren't similar for any of them?

                        Comment

                        • rushgsxr
                          New Member
                          • Oct 2012
                          • 5
                          • United state
                          #7
                          Re: Magnavox lcd tv capacitor help!!

                          well, I found a kit online at lcdalternatives. They're sending me all the capacitors in the power supply, so I should be good to go.

                            Comment

                            • Agent24
                              I see dead caps
                              • Oct 2007
                              • 4951
                              • New Zealand
                              #8
                              Re: Magnavox lcd tv capacitor help!!

                              Looks good, will be interesting to know what they give you.
                              "Tantalum for the brave, Solid Aluminium for the wise, Wet Electrolytic for the adventurous"
                              -David VanHorn

                                Comment

                                • ryan74
                                  Badcaps Veteran
                                  • Oct 2012
                                  • 471
                                  • usa
                                  #9
                                  Re: Magnavox lcd tv capacitor help!!

                                  i have ordered from lcdalternatives. they use good parts and it saves time looking up each individual cap and cost about the same.

                                    Comment

                                    • rushgsxr
                                      New Member
                                      • Oct 2012
                                      • 5
                                      • United state
                                      #10
                                      Re: Magnavox lcd tv capacitor help!!

                                      16 bucks shipped, hopefully i get it this week, i'll let ya know how it goes.

                                        Comment

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