Lenovo ThinkPad 770E-ED TP 770X User's Reference that shipped with the system - Page 19

See Using Locks on Do not place any object in front of, these louvers.

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Page 19 highlights

Identifying the Hardware Features 1 The battery pack is a built-in power source for the computer. It allows you to operate the computer when ac power is not available. 2 The volume control adjusts the sound level of the built-in speakers. 3 The microphone/line-in jack is where you connect a stereo microphone or external audio $ device. (1/8-inch stereo mini jack) 4 The headphone jack is where you connect a $ stereo headphone or external speakers. (1/8-inch $ stereo mini jack) 5 The power switch turns the computer on and off. 6 The reset switch resets the system in an emergency. 7 The security keyhole is used with a security lock. (See "Using Locks" on page 115.) 8 The ac power jack is where you connect the AC Adapter cable. 9 The external-input-device connector allows you to attach a mouse, an external keyboard, or an external numeric keypad. 1 The serial connector (9-pin) is where you connect a serial-device cable. 11 The universal serial bus (USB) connector allows you to connect any device that conforms to the USB interface. Many recent digital devices comply to this new standard. 12 The fan louvers are for circulating air within the computer. Do not place any object in front of these louvers. 13 The system-expansion connector (240-pin) allows you to connect the IBM ThinkPad SelectaBase 770 port replicator. 14 The rear infrared port allows your computer to communicate with other devices that have infrared data-transfer capabilities. 15 The external-monitor connector (15-pin) is where you attach an external monitor (CRT). 16 The parallel connector (25-pin) is where you usually connect a parallel-printer signal cable. 17 The external-diskette-drive connector is where you attach an external-diskette-drive. 18 The power-on indicator indicates that the computer power is on, regardless of whether the computer is in suspend mode. 19 The suspend indicator indicates that the computer is in suspend mode. Green: The computer is in suspend mode. Blinking green: The computer is in the process of changing modes. 2 The charge indicator shows the charge status of your battery. Green: Enough battery power is left for operation. Orange: The battery pack is being charged. Blinking orange: The battery pack needs to be charged. You will hear three beeps the moment this indicator starts blinking if you had set the alarm in the ThinkPad Configuration program. Chapter 1. Getting Familiar with Your Computer 5

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Identifying the Hardware Features
1
The
battery pack
is a built-in power source for the
computer.
It allows you to operate the computer
when ac power is not available.
2
The
volume control
adjusts the sound level of the
built-in speakers.
3
The
microphone/line-in jack
is where you
connect a stereo microphone or external audio
$
device.
(1/8-inch stereo mini jack)
4
The
headphone jack
is where you connect a
$
stereo headphone or external speakers.
(1/8-inch
$
stereo mini jack)
5
The
power switch
turns the computer on and off.
6
The
reset switch
resets the system in an
emergency.
7
The
security keyhole
is used with a security lock.
(See “Using Locks” on page
115.)
8
The
ac power jack
is where you connect the AC
Adapter cable.
9
The
external-input-device connector
allows you
to attach a mouse, an external keyboard, or an
external numeric keypad.
1
The
serial connector
(9-pin) is where you
connect a serial-device cable.
11
The
universal serial bus (USB) connector
allows you to connect any device that conforms to
the USB interface.
Many recent digital devices
comply to this new standard.
12
The
fan louvers
are for circulating air within the
computer.
Do not place any object in front of
these louvers.
13
The
system-expansion connector
(240-pin)
allows you to connect the IBM ThinkPad
SelectaBase 770 port replicator.
14
The
rear infrared port
allows your computer to
communicate with other devices that have infrared
data-transfer capabilities.
15
The
external-monitor connector
(15-pin) is
where you attach an external monitor (CRT).
16
The
parallel connector
(25-pin) is where you
usually connect a parallel-printer signal cable.
17
The
external-diskette-drive connector
is where
you attach an external-diskette-drive.
18
The
power-on indicator
indicates that the
computer power is on, regardless of whether the
computer is in suspend mode.
19
The
suspend indicator
indicates that the
computer is in suspend mode.
Green
:
The computer is in suspend mode.
Blinking green
:
The computer is in the
process of changing modes.
2
The
charge indicator
shows the charge status of
your battery.
Green
:
Enough battery power is left for
operation.
Orange
:
The battery pack is being charged.
Blinking orange
:
The battery pack needs to
be charged.
You will hear three beeps the moment this
indicator starts blinking if you had set the alarm in
the ThinkPad Configuration program.
Chapter 1.
Getting Familiar with Your Computer
5