System not working after removing the NEC/TOKIN

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  • rafemuhammed
    New Member
    • Jul 2013
    • 4
    • India
    #1

    System not working after removing the NEC/TOKIN

    I removed the NEC/TOKIN 0E907 to replace it with 4x330uF from Toshiba L300. Unfortunately, I lost the 330uF capcitors and waiting for another shipping. Will laptop works with out NEC/TOKIN 0E907?. My laptop is now turns on but nothing is coming to LCD and feels like dead. Is this lacks of NEC/TOKIN or another issue with LCD screen. LCD was working before the removal of NEC/TOKIN.
    One more doubt, Can I use normal cylinder capacitors instead of 4x330uF tantalum?

    Pls help
    Tags: None
    • tomodachi
      Badcaps Veteran
      • Apr 2012
      • 593
      • Turkey
      #2
      Re: System not working after removing the NEC/TOKIN

      Same happened to me last week, mine was working but not showing display, I replaced nec/tokin with 4 x 330 and result was perfect, for your case I guess your customer gotta wait for that cap, good luck !

        Comment

        • rafemuhammed
          New Member
          • Jul 2013
          • 4
          • India
          #3
          Re: System not working after removing the NEC/TOKIN

          Thanks for the reply...
          The 33uf tantalum capacitor is rare in my place.
          Can I use any other capacitor instead of 4x330uF tantalum?

          Regards..

            Comment

            • tapasxplore
              New Member
              • Jun 2013
              • 2
              • India
              #4
              Re: System not working after removing the NEC/TOKIN

              you can use two 470uF cap for this purpose. you can use ' rs components ' to get the mention caps. website is// in.rsdelivers.com , part no 737-2832. The caps will come to your place in about 7 days any where in India.

              If you have problem you can contact me at tapasxplore@gmail.com.
              I have also gone through the same problem.

                Comment

                • masud
                  Badcaps Veteran
                  • Jul 2011
                  • 317
                  • Bangladesh
                  #5
                  Re: System not working after removing the NEC/TOKIN

                  s8=470mf

                    Comment

                    • guruji
                      Senior Member
                      • Oct 2012
                      • 118
                      • India
                      #6
                      Re: System not working after removing the NEC/TOKIN

                      Hello
                      By the way u are suppose to put 3caps of 330uf as your prodalizer is 907uf so 3 cap is enough.for a prodalizer nec tokin 1e28 =1280uf u use 4caps of 330uf.incase u want orignal i have in stock the nec/tokin.

                        Comment

                        • guruji
                          Senior Member
                          • Oct 2012
                          • 118
                          • India
                          #7
                          Re: System not working after removing the NEC/TOKIN

                          The 330mfd have to be 2volt rated and highest esr they only work

                            Comment

                            • spleenharvester
                              Badcaps Veteran
                              • Mar 2010
                              • 882
                              • UK
                              #8
                              Re: System not working after removing the NEC/TOKIN

                              I've done this 3 times now, and can tell you it will not work without NEC/Tokin - it will power up and that's as far as you'll get. Same will happen if there is a bridge between the positive and negative caps.

                              Also, use tantalums, don't use the "cylinder" electrolytic caps since they are of a high ESR. On my OE907 I used 4x330uF 2.5v 6mOhm ESR caps.
                              Last edited by spleenharvester; 07-29-2013, 02:54 PM.
                              Dell E7450 | i5-5300U | 16GB DDR3 | 256GB SSD

                                Comment

                                • rafemuhammed
                                  New Member
                                  • Jul 2013
                                  • 4
                                  • India
                                  #9
                                  Re: System not working after removing the NEC/TOKIN

                                  I have ordered tantalum capacitor from rscomponents(http://in.rsdelivers.com/) but after a month they are saying they dont have service station in my place to deliver the product. I decided to select tantalum instead of NEC/TOKIN is the easiness in soldering. Can anybody send tantalum capacitor to me so that I can pay you or can you pls tell other good site to order it. I only like cash on delivery for secure transaction

                                    Comment

                                    • alihomee
                                      Badcaps Legend
                                      • Dec 2012
                                      • 1564
                                      • malaysia
                                      #10
                                      Re: System not working after removing the NEC/TOKIN

                                      you can get those caps from any laptop scrape motherboard if you have one.when i need to change this cap i never order on internet but only i take them from any old motherboard.

                                        Comment

                                        • spleenharvester
                                          Badcaps Veteran
                                          • Mar 2010
                                          • 882
                                          • UK
                                          #11
                                          Re: System not working after removing the NEC/TOKIN

                                          Yup, buy something like a faulty 6735s board, they have 4x330uF on by the CPU.
                                          Dell E7450 | i5-5300U | 16GB DDR3 | 256GB SSD

                                            Comment

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