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switching power supply

Discussion in 'Electronic Repair' started by grod, Oct 28, 2005.

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  1. grod

    grod Guest

    any tips on repairing a switching power supply that has an output that's
    low.
    thanks
     
  2. Mainly capacitors. Could be a zener diode or something in the feedback, like
    a TL431 voltage reference or a problem in a voltage divider. Lots of other
    possibilities, though, and the more complicated the supply, obviously the
    more potential suspects.

    Mark Z.
     
  3. Make sure you have a load on the main (regulated) output!

    See the SMPS repair guide at the site below.

    --- sam | Sci.Electronics.Repair FAQ: http://www.repairfaq.org/
    Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
    +Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm
    | Mirror Sites: http://www.repairfaq.org/REPAIR/F_mirror.html

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