Sony KDL-46EX640 Green power Light no picture

[dcapper]

My friend dropped it off and asked me to look at it. Like the title says. The power button works. The TV turns on but no light no flicker. Nothing at all. Also, check out the grey wire. It's burnt. The board says it's the power wire to the main board. Any ideas?

[neilc6]

Re: Sony KDL-46EX640 Green power Light no picture

If a TV turns on with no backlight, the backlights are the first suspect and I will get out my LED tester to do some probing. Usually I can power the backlight separately with the tester and turn the TV on to check the screen before ordering new strips.

Is the power-on wire still making a connection? This will be a logic signal from the main board to turn on the power supply.