Hi, I have a Sony Vaio that will no longer power on and need any possible solutions. When I press the power button no lights turn on and no noise is made by the computer. I have tested the AC Adapter with a volt meter and itâ€™s out putting the right volts, also I disassembled the computer and attached the AC Adapter and followed the current inside of the computer and seems to be working properly. When I had the laptop apart I completely took it apart and look for signs of damage or shorts etc there where none. I used my computer one night turned it off and the next morning nothing at all. Itâ€™s been a few months since I tried anything with it so if anyone has any suggestion I would greatly appreciate it. If itâ€™s any help the model number is VGN-C140G.