I have a sony dav dz120k home theater..5 days ago d center and rear speakers stopped working....i tried everything from restore factory settings to checking all d connections but all in vain....though when i go to settings and opt for test speakers function,all d speakers are working properly..what to do..please help....

Rear and center speakers not working - Tom's Guide

www.tomsguide.com/answers/id.../rear-center-speakers-working.html

Sep 4, 2013 - Hey guys. I bought a Sony DVD Home Theatre System DAV-TZ140 about a year ago.And it worked perfectly, but all of a sudden my center and ...

Audio Troubleshooting 101: Getting Your A/V System ...

www.audioholics.com > Home Theater Setup > Home Theater Calibration

Jul 14, 2009 - Audio Video Troubleshooting 101: Get your AV System Working Again. ... It's time to put on your propeller head and get down to the business of fixing your system and enjoying it to its ... Problem: One or more of my speakers isn't working ... your Blu-ray player to your AVR and let the played do the decoding.

Tips for fixing common sound problems - Windows Help

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This may not be Dependant on the Music or DVD, but with the setting on the Home Theater system. Try out all the modes - such as 2 Speaker, Multi etc. within the Home Theatre system. In one of the mode only the center speaker works.
Hope this helps. Good Luck.
~SmokinJoe~

Verify that all speakers work for test tones first. The center carries most of the dialog. It's in the manual, as is your symptom (page 101).

You must have changed the listing mode to stereo.In that mode only the left / right & subwoofer will work. Press the surround button and change it to any other mode .

Yes, that shouldhave been taken care of when you set the system up, right?

Page 67...

http://www.retrevo.com/support/Sony-DAV-SB300-Home-Theater-Systems-manual/id/904bh537/t/2/

Hi,
Is it Sony DAV-HDX275 home theater or any other model? Let me know, I might help you to fix it.
Thanks.

Try pressing the mute button on the remote

optical cable connection in tv is only input and same in receiver it is both inputs.you need to find the right encoding in your receiver mode/set-up

Must have a 6.1 or 7.1 source for this channel to work.

Does your receiver have a 'test' mode in which it pipes pink noise through each of the speakers... try that to see if it is actually hooked up correctly.

Get a can of compressed air and spray some air in there. Your lens may have become dirty. Has it ever played DVDs? How long ago?