AEK fuse specifications

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  • Evets
    Member
    • May 2024
    • 28
    • UK

    #1

    AEK fuse specifications

    Hi,
    I'm repairing a pioneer amplifier and all the fuses have been removed, the service manual has part numbers but no fuse specifications. The fuses are all AEK with three numbers, is there a specification sheet for these AEK fuses?
  • stj
    Great Sage 齊天大聖
    • Dec 2009
    • 30937
    • Albion

    #2
    list the amplifier and whats on the fuses
    i presume nothing is printed on the boards

    Comment

    • Evets
      Member
      • May 2024
      • 28
      • UK

      #3
      The amp is a pioneer sa530, there are 4 internal fuses all of which are missing, the board is marked fu1, fu2, fu3, and fu4.
      I'm guessing one is mains voltage and the others are for the voltage rails or speaker protection. Initially I propose to use 2 amp fuses with a current limited supply while I check out the rest of the amp. Hopefully by then I can replace them with the correct values. I still have lots to learn with this new hobby.

      Comment

      • petehall347
        Badcaps Legend
        • Jan 2015
        • 4423
        • United Kingdom

        #4
        ok here you go .. just work out which model yours is . Click image for larger version  Name:	Screenshot from 2024-07-09 19-46-43.png Views:	0 Size:	63.4 KB ID:	3305937
        Last edited by petehall347; 07-09-2024, 12:47 PM.

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        • Evets
          Member
          • May 2024
          • 28
          • UK

          #5
          Thanks.

          Comment

          • petehall347
            Badcaps Legend
            • Jan 2015
            • 4423
            • United Kingdom

            #6
            the T is time delay .the others quick blow .

            Comment

            • petehall347
              Badcaps Legend
              • Jan 2015
              • 4423
              • United Kingdom

              #7
              be careful here if this is your model ..
              Click image for larger version

Name:	Screenshot from 2024-07-09 19-52-29.png
Views:	92
Size:	50.8 KB
ID:	3305943

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              • petehall347
                Badcaps Legend
                • Jan 2015
                • 4423
                • United Kingdom

                #8
                this should help ..
                Click image for larger version

Name:	Screenshot from 2024-07-09 19-54-53.png
Views:	95
Size:	42.4 KB
ID:	3305946

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                • stj
                  Great Sage 齊天大聖
                  • Dec 2009
                  • 30937
                  • Albion

                  #9
                  other than all fuses being T variant anti-surge that is the most unclear shit i'v ever seen - and i'v seen a lot of japanese manuals!

                  Comment

                  • petehall347
                    Badcaps Legend
                    • Jan 2015
                    • 4423
                    • United Kingdom

                    #10
                    i thought it was straight forward after finding the right page . there appears different views on the speaker fuses depending on the model . there is choice of regular fuses and time delay .

                    Comment

                    • R_J
                      Badcaps Legend
                      • Jun 2012
                      • 9518
                      • Canada

                      #11
                      AEK-xxx is just pioneer's part number like there c42, c43 caps are ACH-239 (5600µf42v)
                      FU2, FU3 are in the L, R output so output transistors may be bad.
                      Last edited by R_J; 07-09-2024, 06:14 PM.

                      Comment

                      • petehall347
                        Badcaps Legend
                        • Jan 2015
                        • 4423
                        • United Kingdom

                        #12
                        voltage selector fuses can cause sparks and more if both fuse holders are occupied .this is why i said be careful with that model

                        Comment

                        • stj
                          Great Sage 齊天大聖
                          • Dec 2009
                          • 30937
                          • Albion

                          #13
                          make sure you buy ceramic fuses, not glass ones.

                          Comment

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