MSI Wind U123-019US User Manual page 30

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4. Status LED
Hard Disk/ Optical Drive Device In-use:
Blinking blue when the system is accessing the hard disk drive or the optical
drive device.
Scroll Lock: Glowing blue when the Scroll Lock function is activated.
Num Lock: Glowing blue when the Num Lock function is activated.
Caps Lock: Glowing blue when the Caps Lock function is activated.
Battery Status
Glowing green when the battery is being charged.
Glowing amber when the battery is in low battery status.
Blinking amber if the battery fails and it is recommended to replace a new
battery. Consult the local dealer for purchasing an equivalent type of
battery recommended by the manufacturer.
Battery LED goes out when it is fully charged or when the AC adapter is
disconnected.
Power On/ Off/ Suspend:
Blinking blue when the system is in suspend mode.
LED goes out when the system is turned off.