Question about LG DU-42PX12XC 42 in. Plasma HDTV
My television worked fine this morning. I turned it off & left the house. I came home and it would not turn on. The red standby light flashes like it is about to come on, but then it doesn't come on. I unplugged it for 10 minutes to reset it since there is no reset button on this model, but that did not help at all.
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Posted on Jan 02, 2017
Does the tv make a clicking noise like its trying to turn on before the tv goes into standby and the LED starts flashing? I suspect this is due to a shorted component, most likely to be in the 5V(switching) line and just want to be a bit certain before we start testing the power supply.
Posted on Jul 31, 2011
SOURCE: 42" plasma worked fine this
A common problem for these is bad capacitors in the power supply, Remove the back from your Tv and look at the power supply on the left hand side.
You will see roughly around 9 x capacitors that are bulged / domed shaped on top usually these are valued at 3300uf 10V any that have bulged or leaked a brown like substance should be changed.
This will cure the problem as they overheat being sat next to a heatsink that gets very hot!
Try and change them for the same 3300uf but a higher voltage.
Hope this helps
Posted on Sep 15, 2011
2 month and already quit? OK: first thing to do is to unplug TV off the power strip or wall outlet. Wait for a few minutes and plug the set back into the power source. Try to turn on the set manually, by touching sensors or buttons on control panel. some TVs have push buttons, some touch sensors. If your TV was set to "auto power on" mode, then don't touch anything after plugging set in. That's the only action you can do to "revive" the set. If you will be able to turn set on manually and "free standing" without any external connections, except power cord, check your remote control unit. 95% of consumers turn on their sets via "clickers". In case of complete failure, you might have month or 10 month left of factory warranty, depend on price you paid. Use it a.s.a.p! If needed. There is no magic button to heal broken circuitry.
Posted on Feb 19, 2012
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