The 55" Samsung LCD is about 7 years old. Over the last year the screen will periodically go black and display a message HDMI Not Supported Mode. Bear in mind this is typically after hours of viewing without any change in the input. (NOTE: I'm running a DISH DVR into a Bose surround sound system then out to the TV via an HDMI output from the Bose system.) Secondly, the TV will on occasion make a loud cracking type noise at which time the TV screen is totally blanked by a distorted gray screen. Given all the above 99% of the time the TV picture quality is perfect.
Are these problems repairable or should I view them as early signs of end of life for the unit?
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