Lenovo ThinkPad T40 Hardware Maintenance Manual - Page 58

Indicator, Meaning, Green, Blinking, green

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Product overview Indicator 5 Drive in use Meaning Green: Data is being read from or written to the hard disk drive, the diskette drive, or the drive in the Ultrabay Slim device. When this indicator is on, do not put the computer into standby mode or turn off the computer. 6 Caps lock 7 Num lock 8 Bluetooth status R 9 Wireless status Note: Do not move the system while the green drive-in-use light is on. Sudden physical shock could cause drive errors. Green: Caps Lock mode is enabled. To enable or disable Caps Lock mode, press the Caps Lock key. Green: The numeric keypad on the keyboard is enabled. To enable or disable the keypad, press and hold the Shift key, and press the NumLk (ScrLk) key. Green: Bluetooth wireless is operational. This indicator is on when Bluetooth wireless is on and not in suspend mode. Green: The wireless feature (the IEEE 802.11 standard) is on, and the radio link is ready for use. Blinking green: Data is being transmitted. 52 T40/T40p, T41/T41p, T42/T42p

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Indicator
Meaning
±5²
Drive
in
use
Green:
Data
is
being
read
from
or
written
to
the
hard
disk
drive,
the
diskette
drive,
or
the
drive
in
the
Ultrabay
Slim
device.
When
this
indicator
is
on,
do
not
put
the
computer
into
standby
mode
or
turn
off
the
computer.
Note:
Do
not
move
the
system
while
the
green
drive-in-use
light
is
on.
Sudden
physical
shock
could
cause
drive
errors.
±6²
Caps
lock
Green:
Caps
Lock
mode
is
enabled.
To
enable
or
disable
Caps
Lock
mode,
press
the
Caps
Lock
key.
±7²
Num
lock
Green:
The
numeric
keypad
on
the
keyboard
is
enabled.
To
enable
or
disable
the
keypad,
press
and
hold
the
Shift
key,
and
press
the
NumLk
(ScrLk)
key.
±8²
Bluetooth
status
R
Green:
Bluetooth
wireless
is
operational.
This
indicator
is
on
when
Bluetooth
wireless
is
on
and
not
in
suspend
mode.
±9²
Wireless
status
Green:
The
wireless
feature
(the
IEEE
802.11
standard)
is
on,
and
the
radio
link
is
ready
for
use.
Blinking
green:
Data
is
being
transmitted.
Product
overview
52
T40/T40p,
T41/T41p,
T42/T42p