Need help identifying the components & pinouts

Discussion in 'General Electronics Chat' started by KMK, Jan 11, 2015.

  1. KMK

    Thread Starter Active Member

    Feb 11, 2010
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    0
    Hi all,
    I just salvaged an old sony music system & found quite a few parts that I cannot recognise. This one in particular was used for valine control but unlike regular potentiometer it has no start or end. Imaged of the part are attached.
    Thanks.
     
  2. BReeves

    Member

    Nov 24, 2012
    412
    64
    Does it click like a switch when you turn it all the way to the left? I suspect the two terminals at the side are a switch and the three in front are the normal three terminals on a pot.
     
  3. KMK

    Thread Starter Active Member

    Feb 11, 2010
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    0
    Hi B REEVES,
    It has no start or end. Just rotates in either direction endlessly.
     
  4. ErnieM

    AAC Fanatic!

    Apr 24, 2011
    7,386
    1,605
    It sounds like it may be some sort of rotary encoder. See if the three terminal lugs act as switches.

    A computer/controller can translate these closures into rotation commands for "going up" or "going down."
     
  5. sheldons

    Active Member

    Oct 26, 2011
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    The component you have is a rotary encoder.....used in quite a few different models mainly as a volume control
     
  6. KMK

    Thread Starter Active Member

    Feb 11, 2010
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    Thanks for the information.
    So I won't be able to use it without an encoder. As I understand.. its just a rotator switch , right ?
     
  7. KMK

    Thread Starter Active Member

    Feb 11, 2010
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    There is another component - KDS9J. Looks like a crystal oscillator but not able to confirm it.

    [​IMG]

    Thanks.

    PS: I have taken the essential part from the picture.
     
    Last edited by a moderator: Jan 11, 2015
  8. KMK

    Thread Starter Active Member

    Feb 11, 2010
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    Also another one : 182J. Unable to identify it.

    [​IMG]

    PS I have taken the essential part from the picture
     
    Last edited by a moderator: Jan 11, 2015
  9. bertus

    Administrator

    Apr 5, 2008
    15,647
    2,346
    Hello,

    I have edited the pictures to show the essential part of the pictures.
    I have used a paint-like program to do this.

    The first part is a crystal, not knowing its freqrency.
    The second part is a capacitor of 1800 pF.

    Bertus
     
  10. KMK

    Thread Starter Active Member

    Feb 11, 2010
    68
    0
    Thanks beruts.
     
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