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Your laptop's power button sits directly on top of a device called a power button board. This is a small circuit board where all power and control buttons interface with your laptop's motherboard. The repetitive use of the power and control buttons can damage the power button board. Repairing your power button means removing and replacing the power button board, which requires partial disassembly of your laptop.
1.Power down your laptop. Unplug the AC power adapter and all external devices from the computer. Close the laptop's LCD panel and place the laptop face down. Rotate the laptop so the front opening edge is facing you. Remove the battery pack from its compartment on the laptop's bottom side.
2.Flip the laptop over, and pull open the display panel as far as possible. Use a thin, flat-head screwdriver to pry the keyboard cover from the laptop. The keyboard cover is the plastic piece situated above the keyboard assembly that houses the power button board.
3.Lift the keyboard cover out of the laptop slightly, and disconnect the cables extending from the power button board to the motherboard. Remove the keyboard cover from the laptop.
4.Place the keyboard cover face down on a flat surface. Remove the Phillips-head screws fastening the power button board to the cover, and remove it. If your speakers are situated inside the keyboard cover, disconnect the speaker cables from the power button board before removing it.
5.Place the new power button board inside the keyboard cover. Align the screw holes on the button board with the holes on the keyboard cover. Replace the Phillips-head screws fastening the button board to the keyboard cover. Reconnect the speaker cables to the button board, if necessary.
6.Reconnect the power button board's main cable to the motherboard. Place the keyboard cover back inside the slot above the keyboard assembly. Press down on the cover until it snaps into place. Replace the battery pack and reconnect all cables.
I switch on my PC, ensuring that all cables, leads
and power supplies are connected properly. The tower powers up no
problems at all. I switch the screen on, the green led lights up, the
screen is completely black. A blue box appears centrally on the screen
with the text 'power saving mode'. The green led light turns amber and
then the screen just goes black.
Please don't suggest going to control panel, as I can't get that far.
U'L LDAMAGE YOUR MOTHERBOARD AND THE CPU TURN IT OFF AND UNPLUG ALL CABLES OPEN THE CAS COVER AND CHECK THE CPU FA N IS MOVING OR NOT IF NOT THEN CLEAN THE FAN AND CHECK THE FAN CABLE IF IT STILL NOT MOVING CHANGE THE HEATSINK INCLUDIN THE FAN DA VN
I just fixed mine, I am not exactly sure what did it, but I held the power button down while pushing and holding each button for a few seconds after going through each button I unplugged power cable and then plugged it back in and it powered it up and it worked
Turn the computer off and then disconnenct the cable for the mouse and the keyboard along with the power cable that would be right on the top at the back panel of the computer tower.Then with the mouse,keyboard and the power cable disconected press and hold the power button for atleast 30 seconds .Then connect the cables and turn the computer on the mouse and the kwyboard should work.
It is the same as the power button if your computer is set to sleep when you push power. I was looking too because when you go into the power options in the control panel it shows a button with a half moon as the sleep button, but I don't have that on my keyboard. So I put the question in Vaio help and it said use the power button. I guess some Vaio keyboards have a half moon button, but mine doesn't. I did notice that when I thought I had turned it off using the power button when it got hung up that it did come back up with the move of the mouse. So it really is the power button, as long as it's set that way in the control panel.
I would say that there is probably some crumbs or some other "foreign" material that is interfeering with it if you look under the button you might find something or you could try disabling it and re-enabling it sometimes helps...