Question about Sony STR-DE545 Receiver

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My reciever turns on you can hear it click on but no display lights and no sound out of speakers what could be the problem

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I have found in some situations the cause is in the output stage of the audio ic's, the safety circuits disable the outputs and when that happens the B+ to the display is not present. But it is possible the processor ic has failed causing all functions to be dead. One possible solution is to unplug the receiver for at least 30 minutes to see if the processor will reset. The final option is to have it checked by a professional.

Posted on Jan 01, 2011

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Posted on Jan 02, 2017

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No sound driver


Turn the power off. Wait about 10 seconds,then power up again get close to the reciever and listen for a click-not from the speakers ,fromthe recievers itself.If you hear a click,you can assume that the power supply is ok for that cercuit.This does'nt eliminate the power supply,but it will do for now.Put the speakers close to the reciever,what you will do now is to power up the reciever while listening to the speakers with the volume off.In about 3-5 seconds you should a hear a slight click from the speakers. Try this with both speakers if you don't plug in a pair of headphones to the headphone jack and play the source . If you still no sound with headphones you at least now know that the output transistors are not the problem or the only problem.The power amp., section are defected also.Message whatever happens.

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