LED Driver Repair Help

Discussion in 'General Electronics Chat' started by Kiken, Jun 18, 2013.

  1. Kiken

    Thread Starter New Member

    Jun 18, 2013
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    0
    I guys, so im trying to repair a LED driver of a LED lamp...

    I got the thing apart and as you can maybe tell from the image it has some blown up capacitors, so...

    [​IMG]

    I want to know how to test the other one that is in good conditions to know the specs of the driver.

    Few things I know are, open circuit is 180V DC, and should probably be a CC Driver.

    Thanks in advance for the help!
     
  2. absf

    Senior Member

    Dec 29, 2010
    1,492
    372
    On the bottom left corner is a blown up transistor.

    Allen
     
  3. Kiken

    Thread Starter New Member

    Jun 18, 2013
    7
    0
    Yes, the thing is I have a good one but i dont know the specs...

    And I want to test it so i can buy a new one with the same specs (if the price is not to high) or attempt to repair this one...
     
  4. absf

    Senior Member

    Dec 29, 2010
    1,492
    372
    What's the number on the good one? The number should be something like yyy1300x high voltage transistor......

    Allen
     
  5. Kiken

    Thread Starter New Member

    Jun 18, 2013
    7
    0
    The Board is KG4630 v1.4 from China so...

    The components that are bad i dont know what they are yet, today after work i'm gonna desolder them and post that here.

    Do you guys think it can be repaired?
     
  6. absf

    Senior Member

    Dec 29, 2010
    1,492
    372
    it sure can be repaired. But if you can buy the Board then why bother....

    Just changing the blown transistor might not solve the problem. You have to find out why the transistor was blown.

    Allen
     
  7. Kiken

    Thread Starter New Member

    Jun 18, 2013
    7
    0
    I cant buy a new one yet cause I dont know the specs of this one...

    Also, anyone knows how to clean that liquid from the condensers?
     
  8. Metalmann

    Active Member

    Dec 8, 2012
    700
    223


    Have you tried "Deoxit-D5"?
     
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