Question about Onkyo TX-SR705 Receiver
Speakers crackle and buzz and then receiver turns off
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: Loud Buzzing Sound
This may be a power supply failure, and or a short in the output stage, and in the drivers for the output stage.
This is not a repair you can do at home unless you have a lot of experience in troubshooting and analysing problems in power amplifier equipment.
Posted on May 04, 2008
Make sure none of your speaker wires are touching. I had this problem. I re connected the wires. If a wire is touching the case it'll short out. It has a built in cut out.
I still have a crackling speaker on one channel but it doesn't cut out anymore.
Posted on Feb 24, 2009
The "buzz" you hear is a power hum made by the power supply transformer. It's technically called "Lamination hum" caused by the revering of electrical current through the power supply transformer. In some cases the hum can vibrate the chassis causing other loose material to vibrate. If you can, go to your dealer and check to see if other units of this same type typically make a hum this loud, and if not, see if he can solve the problem for you.
Posted on Feb 27, 2009
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