My Vizio GV47LFHDTV10A turns itself off. Once the touch screen On button is pressed an audible click is heard, the front panel "Vizio" turns white, then about 2 seconds later another audible click is heard and nothing further happens, powers itself off. It sounds like some kind of self-check circuitry is turning itself off. I've pulled the back cover and no no obvious capacitors what may have blown on the power board, and have checked the surface mount fuses on the main board. I suspect either the Power or Main board, don't know how to determine which may be bad or if I'm on the wrong track. any help is appreciated!

SOURCE: Vizio P42HDTV Power on Diagnosis

Please check the U29 8 pin little surface mount mosfet it has this letters > FDS4935 > > In this part inputs 13.2 volts which is ok for the near 12 vdc but it > outputs 1.250 vdc i am 100% sure that this is all the problem > > check it out, and tell me if you´re agree with me > > On this output pin it feeds the audio Ic, the 7809 and the tuner side board > which needs de 12vdc too and its getting only the 5vdc part > > what do ya think?? > > Richard

SOURCE: No Picture

I would check the soldering first for any cracks, and any obvious faulty capacitors or components. It looks like the power board is going into a protective mode because of a short / failed component somewhere.

It would be virtually impossible to guess exactly where with a spot check..

SOURCE: vizio gv47lfhdtv10a no picture no sound

Well guru way to help him out with his problem maybe he doesnt have the money to just run out and buy a new one...

SOURCE: VIZIO M ODEL

Have you tried changing source or input? regards

SOURCE: Vizio VX37L HDTV10A no picture

Hi.
You need change the Main board. You have a micropros. problem.