
1. Boot from the Utility Program  Diskette.
2. Select Thermal Sensor Utility from  PC DOS 7.0
Startup Menu, then the system  thermal is executed.
Setting Inverter IDThere is an EEROM in  the inverter which stores its
supported LCD type ID code. If you replace the  LCD with
a different brand, the ID  information in the inverter EEROM
should be updated.
Follow the steps below to  set the LCD Inverter ID:
1. Boot from the Utility Program  Diskette.
2. Select Inverter ID Utility from  PC DOS 7.0 Startup
Menu.
3. Follow the instructions on screen  to read current or to
set a new inverter ID  code.
Note:   When you set a new  inverter ID and the new
LCD is not yet enabled  (to function), connect an
external monitor to see the  program execution
process.
Important: Make sure the new  ID code you choose
corresponds with the LCD brand  and type. If you
write a wrong ID into  the inverter, just reboot and
re-execute the program and input  the correct ID code.
4. Restart computer - the new  LCD should work
normally.
Note:   If LCD does not display  after changing the ID
code, make sure you write  the correct ID code, or  try
reseating the LCD FPC cable  connectors.
Fn Key CombinationsThe following table shows the  Fn key and function key
combinations and their corresponding functions.
The Fn key works independently  from the operating
system. The operating system  obtains the status through
the system management interface to  control the system.
Fn + Description
F1 Hotkey help
F2 Brightness/Contrast control
F3 LCD/CRT/Both display switching
F4 Fuel-Gauge display ON/OFF
F5 Audio volume control
1Ctrl+Alt+F6 on the external keyboard if  one is attached.
2Ctrl+Alt+F7 on the external keyboard if  one is attached.
3Ctrl+Alt+F8 on the external keyboard if  one is attached.
30 IBM Mobile Systems ThinkPad 310  (D/E/ED) HMM