As you can see, I de-soldiered the power button and bridged it, but now it doesn't work. My multimeter says the connection is good, but the "no picture/sound/fan" thing says its not.
if it did, check you bridged correct pins,you also can try solder power directly at the regulator board without use the swtich/fan board, then you will see, if is a switch problem,may or a bigger one