Question about Samsung LN40A550 LCD TV

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I bought this on clearance. I hooked it up and

I bought a 40" samsung LCD on clearance. I hooked it up and worked fine for the first 15 mins. After 15 mins the picture becomes scrambled and colors become distorted. If I turn it off then immediately on again the picture is still jumbled. If I turn it off, let it sit for an hour and then turn it on again, it's fine until it's been on for 15 mins and then the same thing happens. Anyone have any ideas? I can't exchange or return it since it was clearance. Thanks.

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I had a new in Nov '08 LN40A550 with an intermittent display problem that was resolved by reseating the LCD cable connection.

Posted on Jul 08, 2009

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Samsung LN40A550 LCD TV

This is probably the LCD Controller (T-CON) board connections. This is a small board with 2 flat cables connected to it which run to the LCD screen. The connections with the flat ribbons needs to be reseated. The heat makes the connections misaligned. This board is usually covered by a metal shield.
When you reseat the connections, run the set for 15 minutes to see if it works before replacing the back cover. You may have to reseat it again.
Remember, handle electronics boards by the edges, no static electricity, and do not touch the connection contacts.
At worst you would need a new board. (Shopjimmy.com has it for ~$90.00usd)

Posted on May 09, 2009

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