Question about Radio Communications
Recently my (about five years old) LG 42LC2D LCD television has been blacking out for varied amounts of time. Sometimes no picture is visible for minutes, other times, seconds. The sound continues to be transmitted perfectly, so I can hear the audio crystal clear, just no picture. After some time the picture will return, but it is getting increasingly worse - not too unbearable, but I know it will definitely get there. Currently I only have my PS3 hooked up to it, HDMI, etc. I thought maybe the console could be aggravating the problem. I hope I can get some feedback as to potential issues, I realize a definitive answer is near to impossible without a technician actually opening the thing up and seeing the mechanics, etc. Any advice would be appreciated. Potential costs (in whichever area you're in) would be helpful as well. Cheers, from Vancouver
It is possible the salt air may have corroded a marginal connection ont he 24 volt supply. You can either simply buy a power supply board from any of several online vendors, and swap the board yourself, or you can try reflowing the solder on all of the connections on the Power supply board. Replace all the electrolytic capacitors in the 24 volt supply portion of the set while there.
It would not hurt to check the inverter board for bad solder connections as well, excessive leakage across transistor terminals in the oscillators, and potentially stressed electrolytic capacitors that may or may not show visible signs of stress.
Posted on Feb 19, 2012
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Posted on Jan 02, 2017
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