Troubleshooting - Sony VAIO PCG-F540 Service Manual

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Troubleshooting

This section describes how to solve common problems you may
encounter when using your computer. Many problems have simple
solutions, so try these suggestions before you call Sony Customer
Support.
When you reconnect devices be sure to turn off the computer as described in “Shutting Down
Your Computer” on page 19. Turning off the computer using other methods may result in
data loss.
My computer does not start
Check that the computer is plugged into a power source and that it is
turned on. Check that the power indicator on the front panel of the
computer indicates that the power is on.
Check that the battery packs are inserted properly and that they are
charged.
Make sure there is no diskette in the floppy disk drive.
Confirm that the power cord and all cables are connected firmly, as
described in "Connecting Peripheral Devices" on page 51.
If you plugged the computer into a power strip or UPS, make sure the
power strip or UPS is turned on and working.
If you are using an external display, check that it is plugged into a
power source and turned on. Check that the brightness and contrast
controls are adjusted correctly. See the manual that came with your
display for details.
Moisture condensation may have occurred. Do not use the computer
for at least one hour and then turn on the computer.
When the internal backup battery is low on power, it may not be able
to start your system properly. The message "Press <F1> to resume,
<F2> to setup" would appear at the bottom of the display. Should this
happen, you need to initialize the BIOS. Follow steps 1 to 3 below.
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