Lenovo Thinkpad L570, Hardware Maintenance Manual, Page: 58 / 124

Table 4. Status indicators (continued)
Indicator Meaning
5 7
System status indicators The indicator in the ThinkPad logo on the computer lid and the indicator in the
power button show the system status of the computer.
• Blinks for three times: The computer is initially connected to power.
• On: The computer is on (in normal mode).
• Off: The computer is off or in hibernation mode.
• Blinks quickly: The computer is entering sleep or hibernation mode.
• Blinks slowly: The computer is in sleep mode.
6
Fingerprint reader indicator This indicator shows the status of the fingerprint reader.
• Green: The fingerprint reader is ready for tapping.
• Amber, blinking: The fingerprint cannot be authenticated.
• Off: The fingerprint reader is not ready for tapping.
8
ac power status indicator This indicator shows the ac power and battery power status of the computer.
• Green: connected to ac power (battery power 80%–100%)
• Yellow: connected to ac power (battery power 1%–80%)
• Off: not connected to ac power
9
Network status indicators
The indicators in the Ethernet connector show the network status of the
computer.
• Green: The computer is connected to a LAN.
• Yellow, blinking: Data is being transmitted.
• Off: The computer is not connected to a LAN.
Function keys and key combinations
The following table describes the functions of function keys and key combinations.
Table 5. Function keys and key combinations
Function keys and
key combinations Description
+
You can configure the Fn key and function keys in the Keyboard Properties window by
doing the following:
1. Go to Control Panel, and then change the view of Control Panel from Category to Large
icons or Small icons.
2. Click Keyboard . In the Keyboard Properties window, click the Fn and function keys tab.
3. Select the options of your preference.
Press Fn+Esc to switch the key function between the standard F1–F12 function and the
special function printed as an icon on each key. You can change the default function in
the Keyboard Properties window.
Mute or unmute the speakers.
If you mute the sound and turn off your computer, the sound will remain muted when you
turn on your computer. To turn on the sound, press F2 or F3.
Decrease the speaker volume.
Increase the speaker volume.
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L570 Hardware Maintenance Manual