pre-emptive cap replacement

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  • willawake
    Super Modulator
    • Nov 2003
    • 8457
    • Greece

    #21
    Re: pre-emptive cap replacement

    are you sure that Ellyt is the brand? i have seen several catalogues to use that as a general description for electrolytic caps. tell us the writing on a cap or show a photo
    Last edited by willawake; 02-24-2006, 12:37 PM.
    capacitor lab yachtmati techmati

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    • Kiton
      New Member
      • Dec 2005
      • 7

      #22
      Re: pre-emptive cap replacement

      Okey, sorry about that

      This is what it says:
      Sanyo 2200 uF, 6,3V

      On the other side it says:
      105 degres s.e56 wx

      Comment

      • willawake
        Super Modulator
        • Nov 2003
        • 8457
        • Greece

        #23
        Re: pre-emptive cap replacement

        yes they will be fine. where did you buy them?
        Last edited by willawake; 02-24-2006, 01:34 PM.
        capacitor lab yachtmati techmati

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        • Kiton
          New Member
          • Dec 2005
          • 7

          #24
          Re: pre-emptive cap replacement

          Ok, I need some more help. I have a friend who is replacing the caps but we ran in some trouble. I thought all 25 caps where the same. He saw that they were different after he took them of the motherboard. Now we don“t know which is going where.

          So i would be very grateful if someone could point out which of the 25 caps is the ones that are 1000 uF at 16V.

          Comment

          • Kiton
            New Member
            • Dec 2005
            • 7

            #25
            Re: pre-emptive cap replacement

            I got them from a swedish store...

            Comment

            • willawake
              Super Modulator
              • Nov 2003
              • 8457
              • Greece

              #26
              Re: pre-emptive cap replacement

              how many of each cap do you have?
              capacitor lab yachtmati techmati

              Comment

              • Kiton
                New Member
                • Dec 2005
                • 7

                #27
                Re: pre-emptive cap replacement

                I bought 25 caps that had the 1800 uf 6.3V

                So I need to go to the store tomorrow and get five 1000 uF 16V

                He who took it apart got 20 caps of 1800 uF and 5 caps of 1000 uF. from the motherboard.

                Comment

                • willawake
                  Super Modulator
                  • Nov 2003
                  • 8457
                  • Greece

                  #28
                  Re: pre-emptive cap replacement

                  sheldon provided a list of the caps and their positions that are written on the board (many thanks sheldon)

                  "iMac G5 20"" 1.8 GHz Model"
                  Left to Right Through-hole Electrolytic Caps

                  C1109 1800 uF 6.3v
                  C3411 1000 uF 16v
                  C3311 1000 uF 16v
                  C1008 1800 uF 6.3v
                  C3422 1000 uF 16v
                  C3412 1000 uF 16v
                  C3321 1000 uF 16v

                  C3427 1800 uF 6.3v
                  C3418 1800 uF 6.3v
                  C3328 1800 uF 6.3v
                  C3320 1800 uF 6.3v

                  C3474 1800 uF 6.3v
                  C3317 1800 uF 6.3v
                  C3472 1800 uF 6.3v
                  C3332 1800 uF 6.3v
                  C3475 1800 uF 6.3v
                  C???? 1800 uF 6.3v
                  C3473 1800 uF 6.3v
                  C3333 1800 uF 6.3v
                  C2208 1800 uF 6.3v
                  C2209 1800 uF 6.3v
                  C5009 1800 uF 6.3v
                  C5008 1800 uF 6.3v
                  C908 1800 uF 6.3v
                  C909 1800 uF 6.3v
                  capacitor lab yachtmati techmati

                  Comment

                  • Kiton
                    New Member
                    • Dec 2005
                    • 7

                    #29
                    Re: pre-emptive cap replacement

                    could you be more specific?

                    Comment

                    • willawake
                      Super Modulator
                      • Nov 2003
                      • 8457
                      • Greece

                      #30
                      Re: pre-emptive cap replacement



                      The list above shows which capacitor value corresponds to what is written on the board next to each capacitor. if you check the photo above, you will see what the writing on the board looks like.

                      I do not have enough photos to be certain about all the capacitors.

                      in the below photograph in yellow is shown what i see from the photos to be the 1800s. In red is an area with 7 capacitors. of those 7 capacitors i believe that 2 are 1800 and the other 5 are 1000.

                      these values should correspond to those 7 capacitors

                      C1109 1800 uF 6.3v
                      C3411 1000 uF 16v
                      C3311 1000 uF 16v
                      C1008 1800 uF 6.3v
                      C3422 1000 uF 16v
                      C3412 1000 uF 16v
                      C3321 1000 uF 16v

                      if the list does not agree with your board then do not proceed with the job because if you put a 6.3 at a position where a 16v should be it that capacitor will not last long.

                      i will ask sheldon to come by and check what i have said.
                      Attached Files
                      Last edited by willawake; 03-07-2006, 05:00 PM.
                      capacitor lab yachtmati techmati

                      Comment

                      • Kiton
                        New Member
                        • Dec 2005
                        • 7

                        #31
                        Re: pre-emptive cap replacement

                        Thanks! Just need to be shure that he didn“t do a typo.

                        My Imac is my baby

                        Comment

                        • willawake
                          Super Modulator
                          • Nov 2003
                          • 8457
                          • Greece

                          #32
                          Re: pre-emptive cap replacement



                          this photo looks good. i think the 1000s are the X capacitors. if this agrees with Sheldon's list then go ahead.
                          Attached Files
                          capacitor lab yachtmati techmati

                          Comment

                          • stokessd
                            Member
                            • Aug 2005
                            • 13

                            #33
                            Re: pre-emptive cap replacement

                            I have more pics here:

                            http://www.quadesl.com/albums/imac_cap_pics/


                            I had a problem locating short caps that would fit into the iMac chassis. I had one cap that was bulging and I called apple and they came out and replaced my power supply and midplane. No fuss no muss. Came right to my house.

                            So I never did a cap replacement. If you do replace caps yourself be careful of the height of them, particularly the ones near the middle by the stand.

                            Sheldon

                            Comment

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