Buffer Ic Substitution

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  • simplytrini
    Senior Member
    • Jul 2011
    • 73
    • Canada

    #1

    Buffer Ic Substitution

    Hi all, a very quick question. Can anyone tell me if buffer ic 3289F can be substituted by 3293F? Thank you!!
  • ReeceyBurger123
    Never Give Up !
    • May 2014
    • 7325
    • Britain

    #2
    Re: Buffer Ic Substitution

    Yes it can, guessing that this is a samsung set ?
    Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

    https://www.facebook.com/Telford-Tel...7894576335359/

    Comment

    • simplytrini
      Senior Member
      • Jul 2011
      • 73
      • Canada

      #3
      Re: Buffer Ic Substitution

      Thank you ReeceyBurger123. Yes it is a samsung. Can they sub 3407f as well? Do you know? Thanks

      Comment

      • ReeceyBurger123
        Never Give Up !
        • May 2014
        • 7325
        • Britain

        #4
        Re: Buffer Ic Substitution

        No worries and yes most of the 3xxxf ics are interchangeable with no visible affects. Also you might need to repair the Ysus have you done so ?
        Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

        https://www.facebook.com/Telford-Tel...7894576335359/

        Comment

        • simplytrini
          Senior Member
          • Jul 2011
          • 73
          • Canada

          #5
          Re: Buffer Ic Substitution

          Yes Ysus needed repair as well. Thanks again!!!

          Comment

          • ReeceyBurger123
            Never Give Up !
            • May 2014
            • 7325
            • Britain

            #6
            Re: Buffer Ic Substitution

            No worries common issue is Ymain kills the buffer, are you replacing the Ic yourself ?
            I have replaced a scan Ic before its not easy tbh as long as you use a good method.
            Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

            https://www.facebook.com/Telford-Tel...7894576335359/

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            • simplytrini
              Senior Member
              • Jul 2011
              • 73
              • Canada

              #7
              Re: Buffer Ic Substitution

              Yes I am going to replace myself. I have a reflow station that i will use. Do you suggest anything specific from you experience?

              Comment

              • ReeceyBurger123
                Never Give Up !
                • May 2014
                • 7325
                • Britain

                #8
                Re: Buffer Ic Substitution

                Here is what I suggest:
                Clean off all pins with solder wick and heatsink pad before doing anything then wash with Ipa
                Apply solder to the heatsink pad under the Ic
                Apply flux to the solder pad
                Place Ic on top of solder pad
                Heat area until molten, the Ic should fall into place as the solder from the pad will take to the ic, then lower heat slowly until off, and make sure that Ic is positioned properly
                Apply flux to all pins around Ic
                Apply solder on all pins don't drag it out !
                Apply more flux to pins
                Use flux based solder wick and wick up the large amount of solder around Ic, until you can see that pins are connect to the pcb but not shorted. You will need a lot of flux for this !
                Clean with Ipa afterwards
                Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

                https://www.facebook.com/Telford-Tel...7894576335359/

                Comment

                • ReeceyBurger123
                  Never Give Up !
                  • May 2014
                  • 7325
                  • Britain

                  #9
                  Re: Buffer Ic Substitution

                  Its hard to preform and you will need decent Smd skills, you can not hot air or heat plate the Ic into place you need to solder it with an iron.
                  Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

                  https://www.facebook.com/Telford-Tel...7894576335359/

                  Comment

                  • simplytrini
                    Senior Member
                    • Jul 2011
                    • 73
                    • Canada

                    #10
                    Re: Buffer Ic Substitution

                    ok. thanks again for all your help. I will post backonce I am done.

                    Comment

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