Question about Televison & Video
Not sure if it is a power supply issue for sure, but I've had a similar issue on an older model LG LCD TV. My symptoms were: in the middle of watching TV the screen blinked a magenta color for a moment and then the screen went blank, the TV would seem to turn off and on but could not get the screen to show anything, my power light would also blink 13-16 times and was delayed when turning off. after researching this forum I found a fix. Mine was a problem with a damaged capacitor on the power board it was a Samxon 2200UF 20V capacitor that had a slight bulge on the top. If you remove the back panel of your TV and locate the Power Board (the circuit board that the power cord plugs into) check and see if any of the capacitors on this board have any bulges at all they may appear very slight but will be on the top. If you you find any with bulges they are most likely defective. Remove the circuit board and de-solder the damaged capacitors with a soldering iron from the bottom of the board, and replace with a 2200UF capacitor (or whatever UF value is associated with the damaged capacitor) with a higher voltage rating of 25V or higher that way they will run cooler. Be sure to note how the original capacitors were put in (which side the negative connects to) to avoid damaging the new capacitors. I was able to find the capactitors at a local electronic store, but you could also find them online. The capacitors are $2-4 dollars each and a soldering Iron is approximately $10 at a local radio shack. This fixed my TV, cost me $12 with a soldering Iron and took approximately 1 hour to repair. If you do not see any damaged capacitors then it may be another issue, but it is a simple process to check, Again I did not perform this on the same model TV, but it was a similar symptom and an LG. Good luck!
Posted on Mar 26, 2011
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Posted on Jan 02, 2017
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