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I have a 42 in Sylvania 6842PEM. When it warms up, it will shut itself off. I power it back on, it may stay on for seconds or 30 minutes. Any ideas?

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If the set appears to operate normally other than the shutdown, it may be a case of either a thermal problem in some component or bad solder connections. I'd suspect solder connections first since they are a major source of trouble in today's TV's. Unfortunately, these problems can be hard to track down. Spray cans of cooler (similar to spray duster for computers) can be used to try locating a thermal problem. Gentle tapping on the circuit board with an insulated tool and close inspection can help find bad connections. Working on an operating TV exposes dangerous voltages and fragile components, so care must be used. If you are not experienced working around electronic circuits, you might consider getting a professional to give an estimate for the repair.

Posted on Dec 16, 2008

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