Fn  key  combinations 
The  following  table  shows  the  function  of  each  combination 
of  Fn  with  a  function  key. 
 
Key 
combination 
Description 
Fn+F1  Reserved. 
Fn+F2  Reserved. 
Fn+F3  Turn  off  the  computer  display,  leaving  the 
screen  blank.  To  turn  the  computer  display  on 
again,  press  any  key  or  press  the  TrackPoint 
pointing  stick. 
Fn+F4  Put  the  computer  in  standby  mode.  To   return  to 
normal  operation,  press  the  Fn  key  only, 
without  pressing  a  function  key. 
Note:  This  combination  of  keys  functions  as  a 
sleep  button.  The  setting  can  be  changed  so 
that  pressing  it  puts  the  computer  into 
hibernation  mode  or  even  shuts  the  computer 
down. 
Fn+F5  Control  the  power  source  of  the  built-in 
Bluetooth  wireless  device.  This  combination  of 
the  keys  functions  as  a  toggle  switch  of  the 
power  state. 
Note:  In  Windows  2000  or  Windows  XP,  this 
combination  of  keys  enables  or  disables  the 
built-in  wireless  networking  features  (the  IEEE 
802.11  standard)  and  the  Bluetooth  wireless 
features.  To  use  this  function,  the  following 
drivers  must  be  installed. 
v  IBM  ThinkPad  Power  Management  driver 
v  OnScreen  Display  utility 
v  Wireless  device  drivers 
Fn+F6  Reserved. 
Fn+F7  Switch  a  display  output  location 
v  External  monitor  (CRT  display) 
v  Computer  display  and  external  monitor  (LCD 
+  CRT  display) 
v  Computer  display  (LCD)
Note:
  For  any  operating  system  other  than 
Windows  2000  or  Windows  XP,  no  additional 
procedure  is  needed;  just  press  Fn+F7.
Notes:
 
1.  This  function  does  not  work  when  different 
desktop  images  are  displayed  on  the 
computer  display  and  the  external  monitor 
(the  Extend  desktop  function). 
2.  This  function  does  not  work  while  a  DVD 
movie  or  a  video  clip  is  playing. 
3.  For  Windows  2000  or  Windows  XP,  a 
hotkey  application  might  take  over  the 
switching  function.
 
(continued) 
Product  overview  
52  R50/R50p,  R51  Series