Re: LG 42LK450-UB No pic/No sound

I have read quite a bit on this and am a little confused. I have the same TV with a similar issue. Power light is red. When the TV is turned on, it blinks slowly twice and then turns blue. I can unplug the cable from the power supply (caps and fuses test ok) and the screen flickers before going off. I read about jumping the 3v wire to excite the thing. Can I have a little more detail on this. Everything I read is that my main board is bad. I don't thing this TV is work the $100.00 for a used one on Ebay.

Dewey