Question about Proscan PS32600 32" TV

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White Noise Sound

I was minding my own business watching the TV. The sound suddenly changed to static, much like if the channel had been changed to a completely static picture channel. The picture still comes in fine, but all the TV channels are giving the static sound. It's happenning on the regular local channels and channel 3 for the VCR/satellite setting so that I get the static sound on any satellite channel or when I try playing a VCR tape. However, the sound works fine for the DVD setting, video input 1. I've tried checking all the connections and menu audio setting, but still can't find the problem. Any ideas? If there is some kind of electronic problem, why would the speakers be fine with the DVD but nothing else? Thanks.

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Re: White Noise Sound

Your problem is somewhere between the tuner and video detector circuit. The signal entering your TV carries: video,red color,and blue color as well as sychronizing pulses for color and horizontal and vertical deflection ( actually vertical sync. is derived from horizontal sync.) along with burst pulses to synchronize the color. After all these, the sound is an fm signal entwined with a pilot signal for stereo audio. WHAT a mess! After the audio passes through all this, it is detected and sent to the audio processor. If any frequency has drifted away from it's value then you loose the sound. SO... your problem could be in any of the tuned circuits or in the audio processor IC (chip). Any component changing value could creat this problem. Most likely the audio processor IC. You'd need to have the set checked out by a tech to find your problem. Stargazer

Posted on Mar 11, 2007

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