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    Need help on PCB hp-D1301E0

    Does anyone here have the circuit diagram? It's from the PSU on Dell Inspiron One and vostro 320. Other models, names like H109R, Y664P, or CPB09-007A, should mean the same thing. I'm a little desperate. Please help. thanks in advance! Victor
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    Need help to buy an oscilloscope.

    I'm quite new to this forum. I understand basics about smps, but never actually got my hand on it. Recently I bought one oscilloscope which I knew nothing about it. Later found out the frequency range is 0 to 3MHz. Now I knew it had to be at least 60MHz. Could someone here recommend the...
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