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Lenovo 3000 H Series User Manual
Power connector: Used to supply power to the computer.
LCD power connector: Used to supply power to the LCD.
Standard mouse connector: Used to attach a mouse to a standard connector.
Standard keyboard connector: Used to attach a keyboard to a standard connector.
Serial connector: Used to attach serial devices that uses a 9-pin serial connector.
Parallel connector: Used to attach devices that requires a 25-pin parallel connection.
VGA monitor connector: Used to attach a VGA monitor to the computer.
Note: The VGA monitor connector in your computer is disabled when a monitor is connected to the external VGA card
connector on your computer.
USB connector: Used to attach devices that require a USB connection.
Ethernet connector: Used to attach to an Ethernet-type local area network or to a cable modem
Microphone connector: Used to attach a microphone to your computer when you want to record voice or
capture other sounds.
Speaker/headphones connector: Used to attach a speaker or headphones. Unplug the speaker
connector and connect the headphone connector to use headphone.
Audio line in connector: Used to receive audio signals from an external audio device, such as a stereo
system.
External VGA card connector: Used to attach a VGA monitor to the computer. If the VGA card has a S-
video port, then it can be connected to the TV to output the video signal. (Some models have external
VGA card.)
Modem: Used to attach your computer to a telephone line for modem use.
Telephone: Used to attach a telephone line to your computer for modem use.
1.3 Speakers
Power switch
Volume adjustment
Connect the main speaker
Connect the sub speaker
Power Cable
Speaker/headphones cable