Acer G5350 Uživatelský manuál stáhnout pdf (Strana 126)

5 Troubleshooting

116

Hardware diagnostic testing

This section provides a more detailed approach to identifying a

hardware problem and locating its source.

Caution! Turn off devices before disconnecting cables: Before

disconnecting any peripheral cables from the system, turn off the

system and any external peripheral devices. Failure to do so can

cause permanent damage to the system and/or the peripheral

devices.

1 Turn off the system and all external peripheral devices. Disconnect

each of device from the system, except for the keyboard and the

video monitor.

2 Make sure the system power cord is plugged into a properly

grounded AC outlet.

3 Make sure your video display monitor and keyboard are correctly

connected to the system. Turn on the video monitor. Set its

brightness and contrast controls to at least two thirds of their

maximum ranges (see the documentation supplied with your video

display monitor).

4 If the operating system normally loads from the hard disk drive,

make sure there is no diskette in drive A and no CD-ROM disk in

the CD-ROM drive.

5 If the power LED does light, attempt to boot from a floppy

diskette or from a CD-ROM disk.

6 Turn on the system. If the power LED does not light, see “Power

indicator does not light” on page 117.

Verifying proper operation of key system lights

As POST determines the system configuration, it tests for the presence

of each mass storage device installed in the system. As each device is

checked, its activity light should turn on briefly. Check for the

following:

Does the diskette drive activity light turn on briefly? If not, see "FDD

activity indicator does not light." on page 117.

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Acer G5350 Uživatelský manuál Strana 126