No picture, No sound, No back lights
I have an LG tv that while watching made a quick zap sound and went dark. The on light at the lower right corner comes on when you press the button slowly fashes red to white but there is no picture or sound.
I removed the back and checked for back lights - None.
I did the flash light test and assuming I did it correctly I didn't see anything.
I don't believe the remote is working but I pressed the home and input buttons on the front of the TV in hopes that something would appear on the screen.
Looking at the boards there is no visual sign of a blown capacitor.
I tested the voltage at the connection (see picture ) and my reading were inline with what is written on the board.
Startling the lower right and working the way up pins 9 - 11 all read 11.9. You can't read the expected voltage off the board due to a circuit crossing over the numbers.
Here are pictures of the Main board, t-con (I believe that is what it is called).
Model tag, power board.
The connection where I tested the power is outlined in red.
On the main board there is button just above the 9 PIN service connector. I am not sure what it does, or is suppose to do. I pressed and the TV rebooted but there was no change in the symptoms.
Any suggestions are greatly appreciated.
Is this a good question?