Sony Vaio Model PCG-4K1L Troubleshooting
Laptop will not boot
When I press the power button, the laptop will not turn on.
Bad Hard Drive
If your laptop will not boot correctly, you may have a malfunctioning hard drive. To replace the hard drive, see the Hard Drive Installation Guide.
Bad RAM can also prevent a computer from booting correctly. You may have to replace the RAM. See the RAM Installation Guide for instructions on how to do so.
If you are running your laptop off battery power, then your battery may be empty. Try plugging the laptop into the power adapter to see if it will run.
Laptop shuts off when it is unplugged
When I unplug the device from a power source, the laptop shuts off.
If your battery is dead, your computer will no longer hold a charge or function without the power cable. However, the laptop will still function from the power adapter so that will not be a problem. To remove the battery or replace it, refer to the Battery Installation Guide.
Laptop will not charge when plugged in
When I plug the charger into the laptop, the laptop does not charge.
See the section “Dead Battery” above and refer to the Battery Installation Guide.
Display screen will not function properly
When I turn on the laptop, the LCD Display Screen is black, cracked, or has colored lines running through it.
Broken LCD Screen
If your LCD screen is broken, your only option is to replace it. For instructions on how to replace the screen, see the Screen Installation Guide.
Speakers do not work
When I play music or other audio on my laptop, no sound comes out.
If the speakers are not functioning properly there may be a loose connection. Open up the computer and check to make sure all the speaker cords are connected. For instructions on checking the speaker cords see the Speaker Installation Guide.
To replace broken speakers see Speaker Installation Guide.