2.  If  you  are  using  the  ACPI  operating  system  and  you 
press  Fn+F3, 
v  The  LCD  backlight  turns  off. 
v  The  hard  disk  drive  motor  stops.
3.
  If  the  time  set  on  the  “Turn  off  monitor”  timer  in  the 
operating  system  expires, 
v  The  LCD  backlight  turns  off. 
To  end  screen  blank  mode  and  resume  normal  operation, 
press  any  key. 
Standby  mode 
When  the  computer  enters  standby  mode,  the  following 
events  occur  in  addition  to  what  occurs  in  screen  blank 
mode: 
v  The  LCD  is  powered  off. 
v  The  hard  disk  drive  is  powered  off. 
v  The  CPU  stops. 
To  enter  standby  mode,  press  Fn+F4. 
Note:  You  can  change  the  action  of  Fn+F4,  if  you  are 
using  the  ACPI  operating  system. 
In  certain  circumstances,  the  computer  goes  into  standby 
mode  automatically: 
v  If  a  “suspend  time”  has  been  set  on  the  timer,  and  the 
user  does  not  do  any  operation  with  the  keyboard,  the 
TrackPoint,  the  hard  disk,  the  parallel  connector,  or  the 
diskette  drive  within  that  time. 
v  If  the  battery  indicator  blinks  orange,  indicating  that  the 
battery  power  is  low.  (Alternatively,  if  Hibernate  when 
battery  becomes  low  has  been  selected  in  the  “Power 
Management  Properties”  window,  the  computer  goes 
into  hibernation  mode.) 
Note  for  the  APM  operating  system:
Even  if  you  do  not  set  the  low-battery  alarm,  the  charge 
indicator  notifies  you  when  the  battery  is  low,  and  then  the 
computer  enters  the  power-saving  mode  automatically. 
This  default  low-battery  behavior  is  independent  of  the 
operating  system;  so  if  you  have  set  the  low-battery  alarm, 
the  computer  may  not  do  what  you  specified.  It  chooses 
either  your  setting  or  the  default  setting,  whichever  is 
appropriate. 
If  you  are  using  the  ACPI  operating  system,  only  the 
low-battery  alarm  is  available. 
To  cause  the  computer  to  return  from  standby  mode  and 
resume  operation,  do  one  of  the  following: 
v  Press  the  Fn  key. 
Related  service  information  
40  MT  2369/2370/2371/2372/2382/2386