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SDM-S73, no power light, appears dead

I traced the circuits down to chip position PC330, it's a rectangular chip with two pins on the north side of the chip and two pins to the south. it's labeled 10425 8178. No clue about this chip but the north pins have voltage (-72 volts) and the south pins have no voltage.

Any help would be grateful.

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  • Joe Shuler
    Joe Shuler Jun 07, 2008

    do you have the specs or pinout for this chip so that I can find something that might work in it's place?



    I also found that the english meaning for PUNTE REDRESOARE is bridge rectifier.

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It is a chip for voltage control. or... I don't know in english, in romanian it calls it PUNTE REDRESOARE . It change power voltage from alternative in continuous.Look if it comes from trafo .

Posted on Jun 07, 2008

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http://us.st12.yimg.com/us.st.yimg.com/I/yhst-42877593004970_2046_1336946

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