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CD audio quality

Discussion in 'Electronic Repair' started by [email protected], Oct 29, 2007.

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  1. Guest

    I just put together a spare computer all from dump parts. It has a
    hard drive with Win 98 on it. I have also installed another drive
    that has all my dos programs on it and I boot with a dos disk when I
    want to run those. I installed a CD unit in this machine from one of
    the junkers. Windows recognized it without software and installed it.
    Data disks seem to work fine on it but there is a problem with the
    analog audio. I didn't have a sound card so I took the audio directly
    off the small sheilded cable on the back of the CD unit and connected
    it directly to the input of a receiver. At times it seems to sound
    fine and then other times its very distorted and weak. Is there
    technically any reason why this method of connecting the audio should
    not work? Thanks, Lenny Stein, Barlen Electronics.
     
  2. Adrian C

    Adrian C Guest

    No. CD Rom drive must be broke.

    Just get another drive from the dumpster...
     
  3. Meat Plow

    Meat Plow Guest

    Go through more junkers until you find one that works all the time.
     
  4. boardjunkie

    boardjunkie Guest

    Better yet....get a soundcard with *good* DA convertors. They're not
    expensive these days. Check Ebay.
     
  5. HapticZ

    HapticZ Guest

    distorted and weak- bad connection?

    bad impedance matching, most cd output is very low power driving capacity
    as most PC sound card inputs are matched to the expected cdrom output.

    check the audio adjustment on the cd drive, sometimes they get used so
    rarely that the internal wiper on the potentiometer gets cruddy and doesnt
    make contact well. some cd driveaudio adjustments are really poor quality to
    begin with, since nobody uses them anyway.
     
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