Recent content by nyn1979

Nobody knows how to help me?

Hi guys, I have a Toshiba satellite L50D-B-15 k to a friend who does not work. When I press the power button start for 30 seconds, the screen stays black and then turns off. My post card says: signal error check the pcu and power box. The power voltage work for 3.3v but not have signal to +5v...