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Sharp LC-42SB45U POWER SUPPLY

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    Sharp LC-42SB45U POWER SUPPLY

    Hello i have this sharp tv with 1 bulging cap on the power supply tv showed classic symptom of bad cap by long start up time.. Anyhow the cap is a 2700uf 16v 105 deg and i went to order them wit a higher V rating but it seems i ordered 4700uf 25v 105 deg.. will i be able to use it or do i need to order the correct one?

    #2
    Re: Sharp LC-42SB45U POWER SUPPLY

    I would not use that capacitor, cannot be sure it will work.
    Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
    For service manual, schematic, boardview (board view), datasheet, cad - use our search.

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      #3
      Re: Sharp LC-42SB45U POWER SUPPLY

      It would help if you listed brand/series of the original and replacement capacitor

      Comment


        #4
        Re: Sharp LC-42SB45U POWER SUPPLY

        ok will upload a pic now original it says capxon on it and its green and gold and replacement says KC its black with silver
        Originally posted by tom66 View Post
        I would not use that capacitor, cannot be sure it will work.
        yea tom i was thinking the same thing but i read if its 1 u can get by
        Attached Files
        Last edited by whatusername; 12-30-2013, 04:11 PM.

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          #5
          Re: Sharp LC-42SB45U POWER SUPPLY

          I wouldn't use that capacitor even if it was right capacitance. KC brand -- likely generic non low-ESR so could be worse than original... If it works could just die in a month's time.

          You could get this capacitor from digikey:
          http://www.digikey.com/product-detai...2370-ND/613731
          +$2.75 shipping

          and it should be just fine.
          Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
          For service manual, schematic, boardview (board view), datasheet, cad - use our search.

          Comment


            #6
            Re: Sharp LC-42SB45U POWER SUPPLY

            ahh ok i didnt know brands made a difference.. so now i know there are cheap quality caps (kc) and good quality caps.. what are the names of good caps for future reference?
            and how do u tell ESR from Non ESR?

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              #7
              Re: Sharp LC-42SB45U POWER SUPPLY

              Also if there are any other capxon caps of the same series you should seriously consider changing them. One bad - probably all bad.
              That is not a usual value for a startup cap either. Its usually a small one on the primary side 50v 47uf but it can vary.

              Panasonic FR FM and FC series or Nichicon and Rubycon are considered good but you should buy from a good supplier as well.
              Last edited by selldoor; 12-30-2013, 04:36 PM.
              Please upload pictures using attachment function when ask for help on the repair
              http://www.badcaps.net/forum/showthread.php?t=39740

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                #8
                Re: Sharp LC-42SB45U POWER SUPPLY

                Ok I ordered it Thanks again Tom

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                  #9
                  Re: Sharp LC-42SB45U POWER SUPPLY

                  Originally posted by selldoor View Post
                  Also if there are any other capxon caps of the same series you should seriously consider changing them. One bad - probably all bad.
                  That is not a usual value for a startup cap either. Its usually a small one on the primary side 50v 47uf but it can vary.

                  Panasonic FR FM and FC series or Nichicon and Rubycon are considered good but you should buy from a good supplier as well.
                  This. Those 47uF 25V look like CapXon KM. They do not do well on these hot boards, and since you're already ordering from Digi-Key you should order the rest to replace all the CapXon, then you will be able sleep well at night knowing you don't have to worry about other caps failing

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                    #10
                    Re: Sharp LC-42SB45U POWER SUPPLY

                    ok i willl do that they are cheap enough anyway

                    Comment


                      #11
                      Re: Sharp LC-42SB45U POWER SUPPLY

                      Let us know how it goes

                      Comment


                        #12
                        Re: Sharp LC-42SB45U POWER SUPPLY

                        Will do.. already got an email from Digikey with tracking number...man they are fast :-)

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                          #13
                          Re: Sharp LC-42SB45U POWER SUPPLY

                          Update: caps came in yesterday. i installed them and tv is up n running. . thanks tom for the digikey tip and thanks to everyone else that chimed in...

                          Comment


                            #14
                            Re: Sharp LC-42SB45U POWER SUPPLY

                            Glad to hear, enjoy the TV.
                            Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
                            For service manual, schematic, boardview (board view), datasheet, cad - use our search.

                            Comment

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