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Type: Posts; User: dey4su

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  1. Replies
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    Closed: Re: 450w ATX smps switching voltage low

    Hello sir, some time SMPS working very good, some time, not working - switching voltage 0.5v
    Which section need to check ?
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    Closed: Re: 450w ATX smps switching voltage low

    Now SMPS working fine,

    https://i.imgur.com/2DUTKvU.jpg
    I am changed 3 electrolytic capacitors.
    On the board that value = 2.2uf 50v, but this is not available in our local market, so I replace...
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    Closed: Re: 450w ATX smps switching voltage low

    thank you for your valuable feedback, after change I will back to you with feedback.
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    Closed: Re: 450w ATX smps switching voltage low

    hi, its working last 1year 8months. but now arise the problem.. ..
    Company = i ball
    Marathon - 500W Peak

    What you think, any component is need to change ??

    https://i.imgur.com/YsUG3wh.jpg
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    Closed: Re: 450w ATX smps switching voltage low

    Bridge IC = GBU 606

    IC =
    1. UTC3843D
    2. VIPer22A

    Optocupler = 817C

    https://i.imgur.com/9hTUTvD.jpg
    https://i.imgur.com/Bxg77Ys.jpg
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    Closed: 450w ATX smps switching voltage low

    some time with load / when connect to mother board SMPS not on,
    in that time remove all connector from mother board - green pin voltage under 2.5 volt, after wait 1 or 2 day when again power on...
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