Special function keys
NOTE:
Refer to the illustration that most closely matches your computer.
Component
Description
(1)
esc
key
Displays system information when pressed in combination with
the
fn
key.
(2)
fn
key
Executes frequently used system functions when pressed in
combination with a function key, the
num lock
key, the
esc
key,
or the
fn
+
b
.
See
Using the hot keys on page 15
(3)
Windows key
Opens the Start menu.
NOTE:
Pressing the Windows key again will close the Start
menu.
(4)
Embedded numeric keypad
A numeric keypad superimposed over the keyboard alphabet
keys that enables you to add, subtract, and perform other
numeric tasks. When
num lock
is on, the keypad can be used like
an external numeric keypad.
(5)
Windows application key
Displays options for a selected object.
(6)
num lock
key
Turns the embedded numeric keypad on and off.
14
Chapter 2 External component identification
Summary of Contents for ProBook 640 G2
Page 4: ...iv Important Notice about Customer Self Repair Parts ...
Page 6: ...vi Safety warning notice ...
Page 87: ...Reverse this procedure to replace the panel Component replacement procedures 77 ...
Page 89: ...Reverse this procedure to replace the audio board Component replacement procedures 79 ...
Page 91: ...Reverse this procedure to replace the audio boardr Component replacement procedures 81 ...