IBM 2681 Hardware Maintenance Manual - Page 53

Indicator, Meaning, Green, Blinking, green, Orange, orange

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Product overview Indicator 3 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 Plus 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. 4 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. 5 Caps lock Green: Caps Lock mode is enabled. To enable or disable Caps Lock mode, press the Caps Lock key. 6 Power on Green: The computer is on and ready to use. This indicator stays lit whenever the computer is on and is not in standby mode. 7 Battery status Green: The battery is in use and has enough power. The ac adapter has charged the battery completely. Blinking green: The battery is being charged, but still has enough power to operate. (At regular intervals, the indicator light turns off briefly.) Orange: The battery is being charged, but the battery power is still low. Blinking orange: The battery needs to be charged. When the indicator starts blinking orange, the computer beeps three times. 8 Standby status Green: The computer is in standby mode. Blinking green: The computer is entering standby mode or hibernation mode, or is resuming normal operation. 9 Ultrabay status Green: An Ultrabay Plus device is installed and in use. Blinking green: An Ultrabay Plus device is in the process of being detached. Turn off: An Ultrabay Plus device is ready to be attached or detached. Note: If you are using Windows 2000, the Ultrabay status indicator does not blink while an Ultrabay Plus device is being detached. Instead, a message box pops up when the process is completed; then the indicator turns off. ThinkPad R40 49

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Indicator
Meaning
±3²
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
Plus
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.
±4²
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.
±5²
Caps
lock
Green:
Caps
Lock
mode
is
enabled.
To
enable
or
disable
Caps
Lock
mode,
press
the
Caps
Lock
key.
±6²
Power
on
Green:
The
computer
is
on
and
ready
to
use.
This
indicator
stays
lit
whenever
the
computer
is
on
and
is
not
in
standby
mode.
±7²
Battery
status
Green:
The
battery
is
in
use
and
has
enough
power.
The
ac
adapter
has
charged
the
battery
completely.
Blinking
green:
The
battery
is
being
charged,
but
still
has
enough
power
to
operate.
(At
regular
intervals,
the
indicator
light
turns
off
briefly.)
Orange:
The
battery
is
being
charged,
but
the
battery
power
is
still
low.
Blinking
orange:
The
battery
needs
to
be
charged.
When
the
indicator
starts
blinking
orange,
the
computer
beeps
three
times.
±8²
Standby
status
Green:
The
computer
is
in
standby
mode.
Blinking
green:
The
computer
is
entering
standby
mode
or
hibernation
mode,
or
is
resuming
normal
operation.
±9²
Ultrabay
status
Green:
An
Ultrabay
Plus
device
is
installed
and
in
use.
Blinking
green:
An
Ultrabay
Plus
device
is
in
the
process
of
being
detached.
Turn
off:
An
Ultrabay
Plus
device
is
ready
to
be
attached
or
detached.
Note:
If
you
are
using
Windows
2000,
the
Ultrabay
status
indicator
does
not
blink
while
an
Ultrabay
Plus
device
is
being
detached.
Instead,
a
message
box
pops
up
when
the
process
is
completed;
then
the
indicator
turns
off.
Product
overview
ThinkPad
R40
49