I'm having problems with my Sony TV 40ex723. It keeps making a buzzing sound every 15sec or so. I have DirecTv as the cable/sat source. I redirected to another tv with no issues. I connected my computer to the Sony TV and played videos just fine. I changed HDMI ports on the TV from the DirecTv source and yet same results. All channels experience the same issue. Everything points to the tv. Has this issue been reported before? Is there a resolution?
If the noise can still be heard, then perform a power reset .
If the issue still persists after following the steps above, that may be an indication that the TV is for service. You may refer to this link to locate the nearest Sony authorized service center in your area.
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