Question about LG 42LC2D 42 in. LCD HDTV

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Wont turn on, nothing will light up - LG 42LC2D 42 in. LCD HDTV

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There's many things that can cause this, but usually it's a current overload in some component, and shutting itself down. There are mobile TV repair services in most major cities these days, and they will come to your place to service it, which is convenient, and not more than a shop, from my experience.
An inverter capacitor or power supply capacitor, bad inverter, or tripler can also be common components that can fail.
There are some Youtube videos that might help you if you choose to service it yourself:
http://www.youtube.com/watch?v=Mm51C_RDIZE
http://www.youtube.com/watch?v=BNHHrgX_6cs&feature=related
http://www.youtube.com/watch?v=8l0AUj8QUkg&NR=1&feature=fvwp
http://www.youtube.com/watch?v=Y7b_nTaZYcU&feature=related

Also, look for bulging or leaking electrolytic capacitors (round, metallic barrel objects), and change them. A fellow tech, Super Tech-11, explains how to pick and change the caps:

If you are handy with a soldering iron and can identify the power supply and inverter / FM section for the backlights, an inexpensive handful of capacitors will likely fix you right up.
Match the capacitance on the capacitors. Go over voltage if you can, and still have them fit.
IE - it's not a bad idea to replace a 10V cap with a 16V or 25V or even a 50V, but don't replace a 680uF cap with a 500uF or a 1000uF (unless you are positive it's only doing ripple filtering).

Good luck, and hope this helps.


Posted on Mar 25, 2011

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