Question about LG 55LA6200
I have a bought a new tv (10 days). After turning on the tv the screen of the turned off automatically (2,3,5,10,etc minutes. The sound system is working well, only the screen of the tv failed.
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Posted on Jan 02, 2017
SOURCE: Screen goes black after a
It can be bad power supply module due to bad caps,
Bad Z sustain and Y sustain boards.
You need to check those 3 boards for bad caps, blown fuses, etc.
Basic LCD monitor and TV troubleshooting guide:
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Posted on Dec 25, 2010
SOURCE: Just bought an LG Plasma
The tv is faulty and the fact that it failed immediately after you have started it for the first time is a clear indication of a manufacturing defect.
Take the tv back to the seller and ask for a replacement one or your money back.
Posted on Jun 01, 2011
I would bet on some component(s) have become thermo sensitive. Most of the time capacitors can do this type of thing. Most likely the defective caps could be in the power supply.
To locate the defective caps, you would have to be able to run the supply and use the combination of a heat gun and freeze spray (liquid air spray) for cooling. At the same time you would have to monitor the output of the supply to see the components that cause the output change.
It is also possible to have thermo sensitive components on any of the other boards. This would also require proper troubleshooting.
The service rep would replace boards until he found the defective board. Then he would return the set with the new board and the bill for his work.
If your set is out of warranty, it may be better to consider a new set. Servicing these can be fairly involved and expensive.
Posted on Jun 26, 2012
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