Identifying Parts On The System Board - Lenovo K100 Hardware Replacement Manual

————Audio Line-in Connector: To connect audio input to the computer.
——Audio Line-out Connector: To connect to the speakers or headphones.
—————Microphone Jack: To connect to audio input from a microphone.
SPDIF
——SPDIF Audio Line-out Connector: Output the SPDIF audio signal.
Voltage
——selection switch (Some models are equipped with this switch)
Check the position of the voltage-selection switch on the rear of the computer. Use a ballpoint pen to slide the
switch, if necessary.
1. If the voltage supply range is 100-127 V ac, set the switch to 110 V.
2. If the voltage supply range is 200-240 V ac, set the switch to 230 V.
————Used to attach your computer to a telephone line for modem use. (some models equipped
with this connector)
————Used to attach a telephone line to your computer for modem use. (some models equipped
with this connector)

Identifying parts on the system board

The system board (sometimes called the planar or motherboard) is the main circuit board in your computer. It
provides basic computer functions and supports a variety of devices that are factory-installed or that you can
install later.
The following illustration shows the locations of parts on the system board (some models).
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Hardware Replacement Guide
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