The 6 inverter transformers on the bottom of the picture is the problem and what need to be tested.
Unplug the 6 wires that goes to the LCD screen. Use a
multimeter to test for resistance from each output plug on the board. The one without the resistance is the bad one.
If this doesn't
locate the bad one this way, Each plug should give out DC voltage if working properly. Test each plug for voltage.
The TV will automatically turn off in a couple of seconds like before. You'll have to keep pushing the power button to test each output plug for voltage.
Soon as you find the bad Inverter Transformer, just solder in a new one and the TV should work fine after that.
The part # for the Inverter Transformer is LTZ2PC0MS008.
Here's two places to get them:
http://www.partstore.com/Part/Funai%20Corporation%20Inc/Funai/LTZ2PC0MS008.aspxhttp://www.encompassparts.com/products/?LTZ2PC0MS008
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