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Can Anyone Identify This Component?

Discussion in 'Datasheets, Manuals and Component Identification' started by Tek1, Mar 12, 2016.

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  1. Tek1

    Tek1

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    Mar 12, 2016
    IMAG0714_1.jpg IMAG0716.jpg

    Hi, can anyone please identify this component for me please? I believe it is a low power triac thyristor or something along those lines. It did have a 3rd lead but broke when I removed it to test. It came from a speakon output circuit on a Behringer PMP6000 mixing console. Unfortunately I cannot get any service manuals on these consoles, and the numbers I entered off of the component on Google has not returned any information. I would appreciate any information I receive.
     
  2. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

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    The connections to the surviving device appear to be the same and consequently it is probably the same device.

    Do you have a multimeter?
     
  3. Tek1

    Tek1

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    Mar 12, 2016

    Yes I do
     
  4. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

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    OK, if it has a diode check range, measure each pair of leads (both ways) and tell us what you read for each.

    For each measurement you'll have to tell us which lead the red probe is on, and which the black probe is on.

    Do the same for the busted device too, there will only be two measurements.
     
  5. Tek1

    Tek1

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    Mar 12, 2016

    Busted component as follows:

    Blk - Centre Lead
    = 848
    Red - Right Lead


    Good Component:

    Blk - Centre Lead
    = 850
    Red - Right Lead

    Measured the same on the left lead too
     
  6. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

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    ok, its probably a transistor. What voltage is supplied to this circuit?
     
  7. andomando

    andomando

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    Jul 11, 2013
    It is a A56 TRANSISTOR as per schematic.
     

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  8. KJ6EAD

    KJ6EAD

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    Aug 13, 2011
    I doubt that since none of the other components match. The T3 position on the board should be swarming with resistors for example.
     
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  9. davenn

    davenn Moderator

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    agreed

    @andomando you have given incorrect info ... you schematic doesn't match the circuit board shown by the OP

    If you indeed have the service manual, then please show the correct part of the circuit


    Dave
     
    Last edited: May 11, 2016
  10. Sunnysky

    Sunnysky

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    Jul 15, 2016
    If it has a Triac and a 2 legged active part, it must be a DIAC
     
  11. hevans1944

    hevans1944 Hop - AC8NS

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    "If it has a Triac and a 2 legged active part, it must be a DIAC"
    @Sunnysky: go back and read the original post.

     
  12. Tha fios agaibh

    Tha fios agaibh

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    Aug 11, 2014
    This post is 4 years old.
    I presume the op has moved on.
     
  13. davenn

    davenn Moderator

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    Yup, time to close
     
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