Sony PCG-Z1VA - Manual (Page 33)

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Troubleshooting
This section describes how to solve some basic problems you may
encounter when using your computer. For more troubleshooting topics
refer to the VAIO® Computer User Guide. Many problems have simple
solutions, so refer to these sources before you contact Sony Computing
Support (http://www.sony.com/pcsupport).
Troubleshooting Your Computer
What do I do if my computer won’t start?
❑ 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.