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repair power supply pc

Discussion in 'Troubleshooting and Repair' started by moath, Sep 24, 2017.

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  1. moath


    Sep 23, 2017
    pls help me

    i'm repair power pc

    im first find the 300vdc on the capacitor
    but not any found out put voltage

    i'm test transistor s chooper thats ok

    i'm not ihave not idea ho test the ic lm324n

    pls help me
    thank yo
  2. kellys_eye


    Jun 25, 2010
    Your lack of understanding could be potentially fatal.

    The 300-odd volts appears after the bridge rectifier - no volts could mean either the main fuse has blown or the bridge rectifier has (or both) or the surge suppressor has gone open etc etc.

    Since they are so cheap and readily available why not save yourself some trouble (and, potentially, your own life) by purchasing a new one?
    Robert_fay likes this.
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