Question about LG 42LC2D 42 in. LCD HDTV
The tv has power but will not turn on
Hello, there could be numerous reasons for this, mainly a power supply that has a fualty part or over heated circut, basically something went bad, these circuts are very delicate and they operate at very high temps this cuases circut fualts. just one bad resistor or blown capacitor may cuase this, it seems you may want to start at the power supply, the way i go about repairing these sets is by aquiring a service manual for the particular set then checking that the voltages are proper at the output terminals and check points.
the service manual for your set may be downlaodable, if your not electronically inclined you may want a service tech to check. it if your able to perform these types of checks use a service manual.
Posted on Jun 03, 2010
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Posted on Jan 02, 2017
Perhaps an easy fix. Remove the back of the flat screen. There will be a main circuit board visible. There will be several capacitors, cylinders with a cross hatch on the silver top. Do any of them look like they have a dimple created by expansion of the internal capacitor material over heating? If you see an expanded top...that's probably your problem. Get your solder gun out and replace that capacitor. You can order a new one off of Amazon. If yours is a 10 volt capacitor, consider replacing it with a 16 volt unit. Generally the electronics companies under design the size of these units. When you replace the capacitor take note of the silver band on the unit and where its placed in the two socket holes....there is a positive and negative hole placement.
Posted on Jan 03, 2011
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