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Searched for: 501 902 01B, Found: 34 lines
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Finally i have solved the problem! The IC to solder is the 501 in my case. And now all works fine!
sony str-de875This receiver has one speaker that cuts out. Evidently the overload protector relays are subject to

I'm trouble shoot with out a schematic on IC 501 should there be voltage present on pin 4
He's the suggested repair. Replace R905 p#0148009, Volt.Reg.IC901 p#2373343, D906 30v Z.Diode p#46-

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