Beocenter 9500 missing lithium battery socket

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  • #43441
    petera
    BRONZE Member
      • Topics Started 1
      • Total Posts 4

      I’ve bought myself a ”new” BeoCenter 9500 with the infamous ”code” in the upper display. I’ve digged myself all the way in to the 3V lithium battery. The battery is not only missing but the socket for the battery is soldered out. Guess thats why the former owner gave it up. I’ve attached a close up of the ”finger” on the board where the socket originally was soldered in – front and back.

      I wouldn’t risk damaging the fine old BeoCenter so I need some expert advice. Thanks for reading and double thanks for commenting. Have a nice evening.

       

      Best regards

      Peter

      Beocenter 9500 battery, front

      Beocenter 9500 battery, back

      #43442
      Beobuddy
      GOLD Member
        • Topics Started 4
        • Total Posts 81

        You just need to place a new cell which can be soldered. There isn’t a holder.
        All the backup batteries in masters, centers etc are soldered in B&O products. Only the mainboard in a Beomaster 5 has a holder for it’s BIOS backup battery.

        #43443
        petera
        BRONZE Member
          • Topics Started 1
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          Thanks Beoboddy for your quick reply! Where does + and – go then? The + sign says it self, but what about the – (minus)?

          Best regards

          Peter

           

           

          #43444
          Guy
          Moderator
            • Warwickshire, UK
            • Topics Started 15
            • Total Posts 1,270

            Your diagram is correct: +ve goes to one of the legs of R107:

            ss

            When I last replaced one approx 10 years ago I fitted this replacement and it is still working well: https://uk.farnell.com/renata/cr2450-nfh-lf/cell-lithium-button-2pin-3v/dp/1319731?CMP=i-ddd7-00001003

            #43445
            petera
            BRONZE Member
              • Topics Started 1
              • Total Posts 4

              Thank you Guy – so just to be sure: I could possibly solder -ve to any of these soldering points: (Wouldn’t risk damaging anything)

              IMG_20230129_091309__01

              #43446
              Guy
              Moderator
                • Warwickshire, UK
                • Topics Started 15
                • Total Posts 1,270

                Yes indeed. But I would try to use the original hole nearest the corner to make sure that it is secure and kept original!

                #43447
                petera
                BRONZE Member
                  • Topics Started 1
                  • Total Posts 4

                  Yes of course – you’re right. Didn’t think of that. Thanks for putting that in perspective. Will be soldering it tommorrow. Thank you for your time and advice 🙂

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