Simple cap question.

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  • Dang
    Badcaps Veteran
    • Aug 2013
    • 440
    • UK

    #1

    Simple cap question.

    Can I replace a 2700uf electrolytic cap @16v with 4700uf cap @16v? having trouble sourcing locally, thanks.
  • selldoor
    Slow Learner
    • Dec 2010
    • 7870

    #2
    Re: Simple cap question.

    Not really its too big a gap - you can usually go 1 step higher so 3300.

    cpc have them but you have to buy 5
    http://cpc.farnell.com/panasonic/eeu...20This%20Range
    Please upload pictures using attachment function when ask for help on the repair
    http://www.badcaps.net/forum/showthread.php?t=39740

    Comment

    • Dang
      Badcaps Veteran
      • Aug 2013
      • 440
      • UK

      #3
      Re: Simple cap question.

      Yep, I've tried locally but no go, just 4700uf, looks like Ebay it is, thanks by the way.

      Comment

      • splitcrete
        Badcaps Veteran
        • Dec 2012
        • 387
        • usa

        #4
        Re: Simple cap question.

        You can solder a 2200uf and a 680uf in series and get 2880uf or any combination of caps to make the uf value you need in a pinch.Try to use caps of about the same size. Don't worry if the voltage value goes up, that's ok. I do that sometimes just to see if the tv works. I always put the right cap in when it arrives in the mail. Just a thought. Good Luck

        Comment

        • JJR
          Senior Member
          • Mar 2013
          • 171
          • UK

          #5
          Re: Simple cap question.

          I wouldn't buy caps from ebay, Selldoor has it right, try CPC

          Comment

          • selldoor
            Slow Learner
            • Dec 2010
            • 7870

            #6
            Re: Simple cap question.

            Originally posted by splitcrete
            You can solder a 2200uf and a 680uf in series and get 2880uf or any combination of caps to make the uf value you need in a pinch.Try to use caps of about the same size. Don't worry if the voltage value goes up, that's ok. I do that sometimes just to see if the tv works. I always put the right cap in when it arrives in the mail. Just a thought. Good Luck

            I believe that is actually incorrect you would need to have the 2 smaller value caps in parallel - not like resistors

            http://www.allaboutcircuits.com/vol_1/chpt_13/4.html
            Please upload pictures using attachment function when ask for help on the repair
            http://www.badcaps.net/forum/showthread.php?t=39740

            Comment

            • SteveNielsen
              Retired Tech
              • Jun 2012
              • 2327
              • USA

              #7
              Re: Simple cap question.

              Originally posted by selldoor
              I believe that is actually incorrect you would need to have the 2 smaller value caps in parallel - not like resistors

              http://www.allaboutcircuits.com/vol_1/chpt_13/4.html
              This is absolutely correct.

              Comment

              • splitcrete
                Badcaps Veteran
                • Dec 2012
                • 387
                • usa

                #8
                Re: Simple cap question.

                I am so sorry I did mean parallel not series. I was getting my 5 y/o grandson ready for school. I must think before I type.

                Comment

                • ENERGYSAVINGS
                  Lemurjumping
                  • Jun 2014
                  • 56
                  • USA

                  #9
                  Re: Simple cap question.

                  Selldoor, is right, buy through his source, but depending on the circuit, paralleling to to high a cap value can strain the circuit feeding it. Splitecretes parallel would work OK, and JJR is right as well, don't buy caps from E-bay!

                  Comment

                  • SteveNielsen
                    Retired Tech
                    • Jun 2012
                    • 2327
                    • USA

                    #10
                    Re: Simple cap question.

                    What is Splitecretes parallel? I'm unfamiliar with that term.

                    Comment

                    • ENERGYSAVINGS
                      Lemurjumping
                      • Jun 2014
                      • 56
                      • USA

                      #11
                      Re: Simple cap question.

                      "You can solder a 2200uf and a 680uf" (he said series, but meant parallel)

                      Comment

                      • SteveNielsen
                        Retired Tech
                        • Jun 2012
                        • 2327
                        • USA

                        #12
                        Re: Simple cap question.

                        Oh, I'm sorry. It's the guy's name. Doi!

                        Comment

                        • ENERGYSAVINGS
                          Lemurjumping
                          • Jun 2014
                          • 56
                          • USA

                          #13
                          Re: Simple cap question.

                          HA! It's fine!!!!!

                          Comment

                          • tom66
                            EVs Rule
                            • Apr 2011
                            • 32560
                            • UK

                            #14
                            Re: Simple cap question.

                            Originally posted by Dang
                            Yep, I've tried locally but no go, just 4700uf, looks like Ebay it is, thanks by the way.
                            CPC free 3-day delivery with ANY order, and GUARANTEED to be good quality genuine source.
                            I bought Nichicon from eBay, actually was sent Nihoncon...!! Do not buy capacitors from eBay unless there is no other option!
                            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

                            • Ltank
                              Badcaps Veteran
                              • Jun 2013
                              • 776
                              • USA

                              #15
                              Re: Simple cap question.

                              One thing to be aware of is. If the capacitor is used in timing , it can trow off the frequency that iit was deigned to operate at and cause other issues. Example is cap in 5vdc standby circuits. This is usually a ESR or Capaciitance value change issue causing the circuitry not to work

                              Comment

                              • Dang
                                Badcaps Veteran
                                • Aug 2013
                                • 440
                                • UK

                                #16
                                Re: Simple cap question.

                                So I changed the offending 2700uf cap for a 2200uf and 1000uf in parallel, Tv is now working perfectly, been on for over 6 hours without fault so thanks for all the help and advice, it's much appreciated.

                                Comment

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