Question about Sony STR-DB930 Receiver

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Sony STR DB-930 Receiver jumping into protector mode


Hi, just recently my Sony receiver started to play up.

My sony str db-930 goes into protect mode after the power button is pressed, a loud noise is heard (like a cap discharging) just as the unit goes into protect mode, could you help me with this problem as I dont have any circuit diagrams for this unit.

Regards

Darryl Whitman

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  • Anonymous Mar 12, 2014

    While playing a CD using the Optical input for CD the Receiver just shut off. It didn't feel like it had run hot. Didn't notice anything about 'protection mode'.

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I went through the amp/receiver and used small star washers on all the grounding screws I could find including the one securing the transformer, cleaned dust off all circuit boards, checked output transistors and fuses, all OK.

Re Assembled unit and it worked OK.

I will buy a fan and fan it to avoid sourcing heatsinks for the previusly suggested IC's.

Thanks for the technical help, sure solved my problem.

Regards

Darryl.

Posted on Mar 13, 2008

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