Question about Samsung LN-S4051D 40 in. LCD Television

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I have sound but no picture on my 40" Samsung LCD ?

This is the second time this happens this week. The first time it was without picture for approx 10mins and now its been without picture for +2 hours.

Help!

Posted by on

  • melinfam Feb 06, 2009

    sound but no picture

  • tholmes941 Feb 14, 2009

    I have the same issue. Loss of picture, but audio continues. This has happened 5-6 times, but only when watching DVD's. Each time was at the start of a new scene in the movie. Able to successfully restart after letting TV to remain off for ~ 1 minute. Seems like it is a memory buffer issue that overloads when new scene information is sent from the DVD. Able to restart once the memory buffer is allowed to clear.

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Your inverter circuits are defective or your CCFL assembly are bad...I have these parts in stock if you have a pro-technician who can install them properly.

Posted on Jan 29, 2009

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Before exchange the inverter,
you need to check the back-light on or off.
If the back-light on, need to change main Board,
but no back-light,need to change the power board.

Posted on Feb 09, 2009

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There are two places to look for the problems, the backlight inverter board and the power supply. Look at the power supply first since it is easier to get to, look for burnt parts, bad capacitors, etc. Look for 5vdc, 12vdc, and 24dvc.
http://en.wikipedia.org/wiki/Capacitor_plague
Parts: http://www.shopjimmy.com/catalogsearch/result/?q=Samsung+LN-S4051D+
Please post back what you find.

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