Need to know what this part is..

Discussion in 'General Electronics Chat' started by systmdamage, Dec 2, 2016.

  1. systmdamage

    Thread Starter New Member

    Dec 2, 2016
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    0
    I've been playing around with a broken Uniden answering machine that refuses to power up, it seems like there isn't anything getting past this part...but i really do not know what this is, it is marked on the board as a diode, but i can't seem to find anything online about it with the numbers listed on it... Please understand that I'm just playing and learning what is what...Thanks for all your help!
    chip.jpg
     
  2. bertus

    Administrator

    Apr 5, 2008
    18,607
    3,606
    Hello,

    The part shown is a SMD bridge rectifier.

    Bertus
     
  3. systmdamage

    Thread Starter New Member

    Dec 2, 2016
    4
    0
    Thank you so much! Have a great day!
     
  4. MaxHeadRoom

    Expert

    Jul 18, 2013
    16,224
    4,762
    Is there any DC voltage on the + & - pins?
    If not, does it have AC on the bottom two?
    Max.
     
  5. systmdamage

    Thread Starter New Member

    Dec 2, 2016
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    1v on DC side, i'm not getting anything on the AC side..I've checked the wall wart, it's putting 8v to the board. It leaves the plug, passes a couple resistor then gets to that rectifier and i have nothing afterward...
     
  6. MaxHeadRoom

    Expert

    Jul 18, 2013
    16,224
    4,762
    If you have no AC on the bridge input then it may not be the source of the problem, unless it is shorted and causing the low voltage, can you lift/unsolder one leg of the AC terminal of the bridge and try again for voltage.
    Max.
     
  7. systmdamage

    Thread Starter New Member

    Dec 2, 2016
    4
    0
    I'll give it a try.. It will probably be later this weekend before i get the chance....Thank you for your helps so far!
     
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