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desktop power supply computer troubleshooting

Discussion in 'Power Electronics' started by abdellwahed1, Dec 21, 2018.

  1. abdellwahed1

    abdellwahed1

    7
    0
    May 14, 2018
    Hello,
    I'm new in world of electronics, i want to learn how to test elctronic circuit to repair them.
    I have a problem in the power supply of my computer , i tested it on two computers and i had the same result : to turn on my computer i should push many times on power button , and sometimes suddenly the computer stop working , i tested the voltage of cables i find 10.4 on yellow and -9.16 on blue : i verified that's less than standards , but i don't know how to repair , (there's no inflated capacitor).

    aaa.jpg [​IMG]
     
    Last edited: Dec 21, 2018
  2. Harald Kapp

    Harald Kapp Moderator Moderator

    9,383
    1,914
    Nov 17, 2011
    Your image isn't showing. It is possibly linked to a site I can't access? Try uploading it to the forum, please.

    I think this is a translation issue: to open the computer you don't have to push the power button. When you push the power button the computer is turned on or off.

    Then you shouldn't do it yourself unless the failure is rather obvious. A computer power supply deals with dangerous voltages on the primary side and currents on the secondary side. We can't say more unless we see the image(s).
     
    abdellwahed1 likes this.
  3. abdellwahed1

    abdellwahed1

    7
    0
    May 14, 2018
    Thank you so much , i tried many times to upload an image , it seems that not support image size that depass more than 1 mo
     
  4. Harald Kapp

    Harald Kapp Moderator Moderator

    9,383
    1,914
    Nov 17, 2011
    Yes, there is a limit on image size, unfortunately I don't know where exactly. Try resizing your image.

    The one which is now visible is unfortunately no help. At least I don't see any obvious defect.
     
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