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Polaroid PSU output power

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    #21
    Re: Polaroid PSU output power

    Thanks for the schematic, that will help alot.

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      #22
      Re: Polaroid PSU output power

      Did anyone manage to fix this? In my case, the PFC circuit is not functioning, therefore the DC voltage is only 160 instead of about 350. Since all the secondary voltages are derived from this voltage with transformers in switching action, that explains why all the voltages are low. There is a PFC IC902, which is only getting a VCC of 11 volts. The datasheet for the IC says that between 10 and 15V VCC, the chip goies into low voltage lockout, which I think is what is going on with this PSU. Can someone with a good board measure pin #19 os this 20 pin IC902?

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        #23
        Re: Polaroid PSU output power

        Please - bump

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