Good friend I hope you help me in this simple request that I ask. I have a Panasonic Plasma TV model CT-P42C2L. The problem is that the TV when turning on the stanbay led makes two flashes and comes to turn on an infrared of the main and turns off when protected, according to the service manual that failure indicates problem in the section a-boar 15v sos, it sends me Direct to the main board I understand that these 15v are sent by the source at the time of the order to turn on but as it is protected it does not give me a chance to measure to see if the source sends the 15v, when connecting the outlet it sends me voltages of 5v and 3.3v power. I need to do an empty test to see if the source sends the 15v and activates the pfc circuit. If so, I would know that the problem is in the main. In led and lcd tv I know how to turn on these sources in a vacuum but in these plasma I have no idea that they work very similarly but I have never done them with a plasma tv source I hope they can help me friends ..

connect the multimeter in the place to measure 15v before turning on the TV, in this way you can know if 15v appear or not, comment the part number of the power supply, these sources it is necessary to put a load with 100 spotlights wats on the voltage outputs of the voltages vs and goes from not doing so the voltage goes off and can damage more components ... comment your tests.