Restoring Nakamichi CR-7: Capacitor Replacement for Better Sound

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  • เผยแพร่เมื่อ 23 ธ.ค. 2024

ความคิดเห็น • 11

  • @apogeios
    @apogeios ปีที่แล้ว +2

    The battery is to store auto calibration parameters, you can read it in the owner's manual under auto -calibration, page 8

  • @christophero1969
    @christophero1969 ปีที่แล้ว

    Good job.

  • @stevenichols5708
    @stevenichols5708 ปีที่แล้ว

    Great job!!!

  • @torstenjaeckel5414
    @torstenjaeckel5414 ปีที่แล้ว

    Which brand and capacitor types are you using. Why are Electrolyt caps better than mkp's?

    • @hifirulezzz
      @hifirulezzz  ปีที่แล้ว

      Nichicon Muse and Fine Gold, but these caps are discontinued recently and only stocked amounts left. Those white caps were not original, original are electrolytes. And Nichicon are the best audiophile caps available.

  • @Rfx222
    @Rfx222 ปีที่แล้ว

    Hi, I think you have swapped a rechargeable battery for a cell battery non rechargeable, I don't see clearly on the video but if the original is a nm2032 then I'm right. With a cr2034 you should use a diode to block current from board to try charge the cr. Hope it helps.

    • @hifirulezzz
      @hifirulezzz  ปีที่แล้ว

      Thanks for the tip, I will check

    • @hifirulezzz
      @hifirulezzz  ปีที่แล้ว

      You are wrong, schematic and PCB layout shows this as a battery and there is diode installed.

  • @general682002
    @general682002 ปีที่แล้ว

    One of the hardest for anyone can work on the CR-7.

  • @johnnyg1700
    @johnnyg1700 ปีที่แล้ว

    The circuit topology of the CR7 is more or less the same as the Dragon layout which uses 2.2uf coupling caps instead of the 1uf values and also using the same OP Amps. Perhaps Nakamichi designed it this way as the CR7 is renowned for being more CD like sounding and clinical losing that analogue sound, which is criminal IMO!