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  1. a ovo je DA8X

    http://www.fetaudio.com/wp-content/gallery/da8x/img_4982o.jpg

     

    https://www.synthxl.com/wp-content/uploads/2021/11/yamaha-DA-8X-Service-manual.pdf

     

    Major parts in DA8X:

    1. DIR2 chip: YM3436D – this is a digital interface chip accept both AES/SPDIF and Y2 format signal widely use in Yamaha products since 1988. It is used in D2040 also.

    2. YM6067: Parallel to Serial and serial to serial buffer x 2 chips, one chip support total 4 channels digital signal.

    3. SM5803APT: 18 or 20 bit 8x oversample filter x 2 chips.

    4. PCM63-KY or Y: DAC 20bit x 8 pcs; well know ladder type DAC which sound best back in 1989 period.

    5. IV op-amp: M5238 dual op-amp.

    6. Drivers op-amp: NE5532.

    7. Resistor is 1/8W metal film resistors; not like D2020 use RMA resistors.

    8. E-Capacitor: Elna Durex grade, I dissolder and verify the capacitors are still very good after 30 years.

    9. Output couple capacitor is MUSE bi-polar Green capacitors.

    10. Other film capacitor are either 5% or Soshin brand.

  2. znam da sam i ja imao isti problem kada sam se igrao pre desetak godina.

    secam se da je bila neka fora da se ubaci opornik ili dioda.

    davno bese

    WWW.DIYAUDIO.COM

    Hello all. My DAC sounds fantastic through its SPDIF input but when driven through USB the sound quality strongly depends on the associated computer. I know it should not happen with async USB but...
    FORUM.XDA-DEVELOPERS.COM

    This DIY is based upon work done by ericlmccormick. *DIY means DIAYOR (Do It At Your Own Risk). I'm not responsible if you break/bend/mutilate/damage/fold/crater/molest/etc. your tablet as a...

     

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