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Help with JVC CDRW 121 It doesn't recognize the blank CDRs.

Discussion in 'Electronic Repair' started by Gomer, Sep 30, 2003.

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  1. Gomer

    Gomer Guest

    I need help trying to figure out how to fix my CDRW121. It has
    stopped recognizing the blank CDRs. I have cleaned the lenses at no
    avail. I also replaced three of the melted capacitors but the
    equipment still doesn't work properly. Any ideas? Has anyone else
    had this problem with this product?

    GOMER
     
  2. Jerry G.

    Jerry G. Guest

    The manufactures never give out any technical information or service
    information about how these work for their particular design. If you have
    some components that have been overheated or damaged, you can be sure that
    there will also be some more serious damage. You would have to troubleshoot
    the drive at the component level, using the proper test facilities to
    determine the exact failed devices.

    The obstacles would be to have the proper test and diagnostics equipment,
    and to have replacement parts for the proprietary parts. You would be
    economically and in a practical sense be better off to replace the drive
    with a new one. It may even be a question of being able to do a laser,
    servo, and tracking alignment. This is all done at the factory when
    assembled, through service software, with the service CD disks.

    Other than any simple mechanical fixes, or a simple electrical fix, I have
    never seen anyone have much success at servicing one of these drives at the
    component level.

    --

    Greetings,

    Jerry Greenberg GLG Technologies GLG
    =========================================
    WebPage http://www.zoom-one.com
    Electronics http://www.zoom-one.com/electron.htm
    Instruments http://www.zoom-one.com/glgtech.htm
    =========================================


    I need help trying to figure out how to fix my CDRW121. It has
    stopped recognizing the blank CDRs. I have cleaned the lenses at no
    avail. I also replaced three of the melted capacitors but the
    equipment still doesn't work properly. Any ideas? Has anyone else
    had this problem with this product?

    GOMER
     
  3. That is an RCA, not a JVC, yes?
    Make sure you're using CD-R AUDIO blanks. Not much else you can do - the
    recorder portion is not a serviceable part, it's replaced a a whole
    assembly, and way too expensive for an out-of-warranty repair.

    Mark Z.
     
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