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CD Player problem

Discussion in 'Electronic Repair' started by DS, Mar 24, 2005.

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  1. DS

    DS Guest

    I have an older Sony stereo unit (radio-tape-CD-video input.)
    The CD player has developed an intermittent problem.
    You insert a disk, it shows TRACK 1 on the display but then it ejects the
    disk.
    Sometimes it will work. Most often it doesn't.
    It's not a faulty disk because I have tested with several different ones.
    Is this maybe something simple like cleaning or should I be shopping for a
    new unit?
    Thanks
    ds
     
  2. Jerry G.

    Jerry G. Guest

    Try cleaning the laser. If this does not fix it, there is a chance that
    there is a mechanical problem, or the laser is getting weak.

    --

    Jerry G.
    ======


    I have an older Sony stereo unit (radio-tape-CD-video input.)
    The CD player has developed an intermittent problem.
    You insert a disk, it shows TRACK 1 on the display but then it ejects the
    disk.
    Sometimes it will work. Most often it doesn't.
    It's not a faulty disk because I have tested with several different ones.
    Is this maybe something simple like cleaning or should I be shopping for a
    new unit?
    Thanks
    ds
     
  3. If you wan to pursue it further, see the CD Repair Guide at the sites
    below.

    --- sam | Sci.Electronics.Repair FAQ Mirror: http://repairfaq.ece.drexel.edu/
    Repair | Main Table of Contents: http://repairfaq.ece.drexel.edu/REPAIR/
    +Lasers | Sam's Laser FAQ: http://repairfaq.ece.drexel.edu/sam/lasersam.htm
    | Mirror Sites: http://repairfaq.ece.drexel.edu/REPAIR/F_mirror.html

    Note: These links are hopefully temporary until we can sort out the excessive
    traffic on Repairfaq.org.

    Important: Anything sent to the email address in the message header above is
    ignored unless my full name is included in the subject line. Or, you can
    contact me via the Feedback Form in the FAQs.
     
  4. Steven

    Steven Guest

    If you are able to open and look into the actual drive as it operates, see
    if it makes incorrect contact at the clamp (spindle mechanism). If it makes
    contact it may eject it to prevent damage to the disc. A motion sensor may
    also be dirty or bad. The clamp itself may not work well and the disc may
    not read. Use of a cleaning CD may not be useful as the cycle may fail prior
    to encountering the cleaning device. My experience is that Sony players tend
    to display "no disc" more often than ejection in the event of a failed read,
    so an obstruction or sensor problem is likely, followed by the lens, which
    may need more invasive, less user-accomplished cleaning techniques or
    possibly alignment or replacement of the laser. You do not state the model
    or listed mfg. date. I have standalone CDPs dating back to 1987 by Sony and
    I haven't encountered a bad laser yet.
     
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