DELL NT505 ユーザーズマニュアル

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Quick Reference Guide
31
Floppy Drive
 
NOTICE: 
Do not attempt to clean drive heads with a swab. The heads may become 
misaligned and prevent the drive from operating.
Clean your floppy drive using a commercially available cleaning kit. These 
kits contain pretreated floppy disks to remove contaminants that accumulate 
during normal operation.
CDs and DVDs
 
NOTICE: 
Always use compressed air to clean the lens in the CD/DVD drive, and 
follow the instructions that come with the compressed air. Never touch the lens in 
the drive.
1
Hold the disc by its outer edge. You can also touch the inside edge of the 
center hole.
 
NOTICE: 
To prevent damaging the surface, do not wipe in a circular motion around 
the disc.
2
With a soft, lint-free cloth, gently wipe the bottom of the disc (the 
unlabeled side) in a straight line from the center to the outer edge of the 
disc.
For stubborn dirt, try using water or a diluted solution of water and mild 
soap. You can also purchase commercial products that clean discs and 
provide some protection from dust, fingerprints, and scratches. Cleaning 
products for CDs are safe to use on DVDs.
Troubleshooting Tools
Power Lights
 
CAUTION: 
Before you begin any of the procedures in this section, follow the 
safety instructions in the 
Product Information Guide
.
The power button light located on the front of the computer illuminates and 
blinks or remains solid to indicate different states:
If the power light is green and the computer is not responding, see 
"Diagnostic Lights" on page 33