SMPS power problems

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

  1. OnyangoJ

    OnyangoJ

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    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
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  2. OnyangoJ

    davenn Moderator

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    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
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  3. OnyangoJ

    OnyangoJ

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    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

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    IMG20170105201914.jpg IMG20170105201944.jpg
     
    OnyangoJ, Jan 6, 2017
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  5. OnyangoJ

    OnyangoJ

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    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
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  6. OnyangoJ

    davenn Moderator

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    no pic of the other side of the board
     
    davenn, Jan 6, 2017
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  7. OnyangoJ

    OnyangoJ

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    IMG20170106195556.jpg IMG20170106195616.jpg
     
    OnyangoJ, Jan 9, 2017
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  8. OnyangoJ

    OnyangoJ

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    This is the other side of the board.
     
    OnyangoJ, Jan 9, 2017
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  9. OnyangoJ

    Bluejets

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    Can't make out the number on that underside chip.
     
    Bluejets, Jan 9, 2017
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