Sony computer User Manual



Make sure the computer is securely plugged into a power source and turned on. Make sure the power indicator
shows the power is on. 



Make sure the battery is inserted properly and charged. 



Make sure the floppy disk drive (if applicable) is empty. 



If the computer is plugged into a power strip or uninterruptible power supply (UPS), make sure the power strip or
UPS is turned on and working. 



If you are using an external display, make sure it is plugged into a power source and turned on. Make sure the
brightness and contrast controls are adjusted correctly. See the guide that came with your display for details. 



Disconnect the AC adapter and remove the battery. Wait one minute. Reattach the AC adapter and reinsert the
battery. Turn on the power. 



Condensation may cause the computer to malfunction. If this occurs, do not use the computer for at least one hour. 



If the computer still does not turn on, follow these steps: 

1.

Unplug the power cord and remove the battery. 

2.

Use a thin, straight object (such as a paper clip) to press the reset button. 

3.

Reinsert the power cord and the battery. 

4.

Turn on the computer.