Clicking noise after powering down Sony 40" LCD
I have the same set (the Costco kdl-40vl130 version) and it does the same thing. The owners manual does make mention of this noise on page 5 or so. This is actually my third sample of this model. I returned the second set because I thought the popping was a sample defect. The first one was returned due to intermittent sound. That issue, however, appears to have been cable-related. The strange thing was that those times I turned on the Sony and it was silent, switching inputs did not bring the sound back. After the sound began breaking up with the third and current set, I had the cable guy came out. He moved the Sony off of a cable amplifer, saying that signal output was too high. Sounds fishy to me but I haven't lost sound since he did that. I don't recall the clicking and popping noises with that first sample but it could be that I wasn't paying attention. It was a while ago. I have occasionally noticed the noise for a minute or two after powering up, as well. It appears to be metal and plastic heating up and cooling down. It does not appear to be a sign of impending failure and I have seen postings about this type of noise with other brands in avsforum.com.
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