SMPS power problems

Discussion in 'Datasheets, Schematics, Manuals and Parts' started by OnyangoJ, Jan 5, 2017.

  1. OnyangoJ

    OnyangoJ

    Joined:
    Jan 5, 2017
    Messages:
    6
    Likes Received:
    1
    this Switch mode cant power the system up. no green light. i have done voltage testing and am only getting the 12 volts output.-12 volts,5volts are both missing how can I solve this problem? IMG20170104221403.jpg
     
    OnyangoJ, Jan 5, 2017
    #1
    1. Advertisements

  2. OnyangoJ

    davenn Moderator

    Joined:
    Sep 5, 2009
    Messages:
    11,128
    Likes Received:
    1,219
    Location:
    Sydney, Australia
    hi there
    welcome :)

    please show a pic of the other side of the board

    what did this supply come out of ... what make/model ?

    what mains voltage is it supplied with ?
     
    davenn, Jan 5, 2017
    #2
    1. Advertisements

  3. OnyangoJ

    OnyangoJ

    Joined:
    Jan 5, 2017
    Messages:
    6
    Likes Received:
    1
    This board is from AUCMA DVD Supplied by 240 volts mains.Ill post the other side, Just yet I cant access the set but ill provide a photo.
     
    OnyangoJ, Jan 5, 2017
    #3
    davenn likes this.
  4. OnyangoJ

    OnyangoJ

    Joined:
    Jan 5, 2017
    Messages:
    6
    Likes Received:
    1
    IMG20170105201914.jpg IMG20170105201944.jpg
     
    OnyangoJ, Jan 6, 2017
    #4
  5. OnyangoJ

    OnyangoJ

    Joined:
    Jan 5, 2017
    Messages:
    6
    Likes Received:
    1
    These are the pics of the other components of the board.I have checked the secondary side caps and diodes and all tested good please assist.
     
    OnyangoJ, Jan 6, 2017
    #5
  6. OnyangoJ

    davenn Moderator

    Joined:
    Sep 5, 2009
    Messages:
    11,128
    Likes Received:
    1,219
    Location:
    Sydney, Australia
    no pic of the other side of the board
     
    davenn, Jan 6, 2017
    #6
  7. OnyangoJ

    OnyangoJ

    Joined:
    Jan 5, 2017
    Messages:
    6
    Likes Received:
    1
    IMG20170106195556.jpg IMG20170106195616.jpg
     
    OnyangoJ, Jan 9, 2017
    #7
  8. OnyangoJ

    OnyangoJ

    Joined:
    Jan 5, 2017
    Messages:
    6
    Likes Received:
    1
    This is the other side of the board.
     
    OnyangoJ, Jan 9, 2017
    #8
  9. OnyangoJ

    Bluejets

    Joined:
    Oct 5, 2014
    Messages:
    1,535
    Likes Received:
    298
    Can't make out the number on that underside chip.
     
    Bluejets, Jan 9, 2017
    #9
    1. Advertisements

Want to reply to this thread or ask your own question?

It takes just 2 minutes to sign up (and it's free!). Just click the sign up button to choose a username and then you can ask your own questions on the forum.
Similar Threads
  1. prizark

    SMPS Negative Power Supply

    prizark, Feb 5, 2004, in forum: General Electronics
    Replies:
    1
    Views:
    868
  2. nanotech1
    Replies:
    4
    Views:
    976
    nanotech1
    Feb 25, 2005
  3. rob

    SMPS power supply help needed

    rob, Feb 6, 2004, in forum: Electronic Design
    Replies:
    1
    Views:
    546
    Klaus Vestergaard Kragelund
    Feb 7, 2004
  4. .:: Evanescence ::.

    When was the SMPS power supply invented?

    .:: Evanescence ::., Jul 21, 2004, in forum: Electronic Design
    Replies:
    9
    Views:
    5,902
    Richie
    Aug 26, 2004
  5. eem2am

    LLC Resonant SMPS problems

    eem2am, Dec 19, 2011, in forum: Circuit Help
    Replies:
    0
    Views:
    876
    eem2am
    Dec 19, 2011
  6. RobertMacy
    Replies:
    111
    Views:
    2,976
    josephkk
    Oct 24, 2013
  7. eem2am

    Phase shift full bridge SMPS problems?

    eem2am, Feb 15, 2014, in forum: Circuit Help
    Replies:
    8
    Views:
    749
    eem2am
    Feb 22, 2014
  8. OhMy
    Replies:
    5
    Views:
    9,865
    Rleo6965
    Jun 2, 2014
Loading...