what are these??

Discussion in 'General Electronics Chat' started by jayanthyk192, Apr 23, 2010.

  1. jayanthyk192

    Thread Starter Member

    Jan 23, 2010
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    i opened a CD-Rom and found 3,black,rectamgular,4 terminal devices under the motor.what are these?i thought these were hall effect sensors.
     
  2. bertus

    Administrator

    Apr 5, 2008
    15,649
    2,348
    Hello,

    Can you make a picture of them?
    They could be some hall sensors.

    Bertus
     
  3. t06afre

    AAC Fanatic!

    May 11, 2009
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    So you opened the CD rom and found a motor and some other stuff. That was very strange as that have never happened to me:rolleyes:
    Joking aside. I would recommend that you post a picture. It would be helpful
    :)
     
  4. rjenkins

    AAC Fanatic!

    Nov 6, 2005
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    They could be sensors or the could be discrete power transistors for the motor power drive.
     
  5. R!f@@

    AAC Fanatic!

    Apr 2, 2009
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    I opened my ROM and found my missing CD's in pieces :eek:
    At last I found my Playboy CD's :D
     
  6. retched

    AAC Fanatic!

    Dec 5, 2009
    5,201
    312
    Can you post a photo?

    of the IC's not the playboy ;)
     
  7. jayanthyk192

    Thread Starter Member

    Jan 23, 2010
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    0
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