DELL D600 用户手册

下载
页码 121
keyboard status lights
  
  
The green lights located above the keyboard indicate the following: 
 
Left View  
  
 
 
air vents — 
The computer uses an internal fan to create airflow through the vents, which prevents the computer from overheating. 
 
 
 
 
PC Card slot — 
Supports one PC Card, such as a modem or network adapter. The computer ships with a plastic blank installed in the slot. For more 
information, see "
." 
 
 
smart card slot — 
Supports one smart card. For more information, see "
." 
 
 
infrared sensor — 
Lets you transfer files from your computer to another infrared-compatible device without using cable connections. 
  Turns on when the numeric keypad is enabled. 
  Turns on when the uppercase letter function is enabled. 
  Turns on when the scroll lock function is enabled. 
 (2) 
 
 
  7 
 
       
 
NOTE: 
The computer turns on the fan when the computer gets hot. Fan noise is normal and does not indicate a problem with the fans or the computer.
 
CAUTION: 
Do not block, push objects into, or allow dust to accumulate in the air vents. Do not store your Dell™ computer in a low
-airflow 
environment, such as a closed briefcase, while it is running. Restricting the airflow can damage the computer or cause a fire.