how to solder NEC TOKIN IC 0E907 ( conductive glue ???)

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  • lepak06
    Senior Member
    • Feb 2017
    • 51
    • france
    #1

    how to solder NEC TOKIN IC 0E907 ( conductive glue ???)

    Hello

    I need to remplace NEC TOKIN 0E907 for acer laptop but i can t use the airflow gun because the nec tokin ic burnt. And for low temperature <220° the solder paste don't heat. it's low

    I seen we can remplace it with 4 x 330uF smd but i want remplace it with original ic.

    Can i use conductive glue (which product) or an other solution?

    Thx
    Tags: None
    • stj
      Great Sage 齊天大聖
      • Dec 2009
      • 31068
      • Albion
      #2
      Re: how to solder NEC TOKIN IC 0E907 ( conductive glue ???)

      you need a real reflow station - and then it can fail again.
      use the 330uf polymers.

        Comment

        • lepak06
          Senior Member
          • Feb 2017
          • 51
          • france
          #3
          Re: how to solder NEC TOKIN IC 0E907 ( conductive glue ???)

          sorry i ve an Digital Hot air Station and not airflow gun that i wrote.

          I feel that the tokin was glued and not soldered because I can tear it off the motherboard

          i tried with 330uf the laptop is good working but i want a clean working for client

          thx

            Comment

            • stj
              Great Sage 齊天大聖
              • Dec 2009
              • 31068
              • Albion
              #4
              Re: how to solder NEC TOKIN IC 0E907 ( conductive glue ???)

              well most laptops use the 330uf caps, the tokin caps are a failure and kill a lot of PS3's too.

                Comment

                • megaraider
                  Badcaps Veteran
                  • Jul 2015
                  • 307
                  • Portugal
                  #5
                  Re: how to solder NEC TOKIN IC 0E907 ( conductive glue ???)

                  Originally posted by lepak06
                  (...) but i want a clean working for client
                  That's an epoxy glue type (probably black color).
                  I always remove it by scratching and peeling it off. Then use a solvent to remove any smaller lefties.

                    Comment

                    • petehall347
                      Badcaps Legend
                      • Jan 2015
                      • 4427
                      • United Kingdom
                      #6
                      Re: how to solder NEC TOKIN IC 0E907 ( conductive glue ???)

                      seems the recommended repair is an upgrade .. i dont think the customer wants to look at that bit .

                        Comment

                        • stj
                          Great Sage 齊天大聖
                          • Dec 2009
                          • 31068
                          • Albion
                          #7
                          Re: how to solder NEC TOKIN IC 0E907 ( conductive glue ???)

                          most repairs are an upgrade, because you dont want the blame for it failing again.
                          that's why we dont replace shit caps with more "chong-x" or whatever, but spend the extra on panasonic or use polymers.

                          a good repair is a repair you only do once!

                            Comment

                            • promo7uk
                              Member
                              • Aug 2014
                              • 31
                              • uk
                              #8
                              Re: how to solder NEC TOKIN IC 0E907 ( conductive glue ???)

                              Originally posted by stj
                              most repairs are an upgrade, because you dont want the blame for it failing again.
                              that's why we dont replace shit caps with more "chong-x" or whatever, but spend the extra on panasonic or use polymers.

                              a good repair is a repair you only do once!
                              PMSFL.!! TOO TRUE, cheap china caps always fail.

                                Comment

                                • momaka
                                  master hoarder
                                  • May 2008
                                  • 12175
                                  • Bulgaria
                                  #9
                                  Re: how to solder NEC TOKIN IC 0E907 ( conductive glue ???)

                                  Originally posted by stj
                                  a good repair is a repair you only do once!
                                  Exactly!!!

                                  Skip the NEC TOKIN caps and use something else - SMD polymers, tantalums, ceramics... whatever. just NOT those NEC TOKIN c[r]aps.

                                  The customer will likely never look inside the unit and hence never complain, as long as the unit is working. And if they do, you can always tell them why you didn't use original replacements.

                                  As stj mentioned, many PlayStation 3 consoles and also a few older Toshiba laptops were affected from these failing NEC TOKIN caps.

                                    Comment

                                    • Th3_uN1Qu3
                                      Believe in
                                      • Jul 2010
                                      • 6031
                                      • Romania
                                      #10
                                      Re: how to solder NEC TOKIN IC 0E907 ( conductive glue ???)

                                      I've done dozens of these. Always 4x330uF on Toshiba. Only on Acer 6930G/8930G I do 4x 470uF or 6x 330uF because 4x330uF is not always stable.
                                      Originally posted by PeteS in CA
                                      Remember that by the time consequences of a short-sighted decision are experienced, the idiot who made the bad decision may have already been promoted or moved on to a better job at another company.
                                      A working TV? How boring!

                                        Comment

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