Lenovo 11 manual Power management, Screen blank mode, Sleep standby mode

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Related service information

Power management

Note: Power management modes are not supported for APM operating system.

To reduce power consumption, the computer has three power management modes: screen blank, sleep (standby), and hibernation.

Screen blank mode

If the time set on the “Turn off monitor” timer in the operating system expires, the LCD backlight turns off.

To end screen blank mode and resume normal operation, press any key.

Sleep (standby) mode

When the computer enters sleep (standby) mode, the following events occur in addition to what occurs in screen blank mode:

•• The LCD is powered off.

•• The hard disk drive is powered off.

•• The CPU stops.

To enter sleep (standby) mode, To put the computer to sleep, do one of the following:

•• Close the display panel.

•• Press the power button.

•• Open the Charms and then select Settings → Power → Sleep.

In certain circumstances, the computer goes into sleep (standby) mode automatically:

•• If a “suspend time” has been set on the timer, and the user does not do any operation with the keyboard, the hard disk, the parallel connector, or the diskette drive within that time.

•• If the battery indicator is amber, indicating that the battery power is low.

To cause the computer to return from sleep (standby) mode and resume the operation, do one of the following:

•• Press the Fn key.

•• Turn on the power switch.

Also, in the following event, the computer automatically returns from sleep (standby) mode and resumes the operation:

•• The time set on the resume timer elapses.

Note: The computer does not accept any input immediately after it enters sleep (standby) mode. Wait a few seconds before taking any action to reenter operation mode.

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Contents Lenovo IdeaPad Yoga First Edition Oct Copyright Lenovo 2012. All rights reserved Contents About this manual Safety information General safety Electrical safety IdeaPad Yoga 11 Hardware Maintenance Manual Safety inspection guide Grounding requirements Safety notice Safety notices multilingual translationsIdeaPad Yoga 11 Hardware Maintenance Manual Safety information IdeaPad Yoga 11 Hardware Maintenance Manual Safety information IdeaPad Yoga 11 Hardware Maintenance Manual Safety information Laser compliance statement Safety information Strategy for replacing FRUs Important service informationImportant notice for replacing a system board Important service informationImportant information about replacing RoHS compliant FRUs General checkout What to do first Following are not covered under warrantyChecking operational charging Power system checkoutChecking the AC adapter IdeaPad Yoga 11 Hardware Maintenance Manual Restoring the factory contents by using OneKey Recovery Related service informationSupervisor password PasswordsPower-on password Sleep standby mode Power managementScreen blank mode Lenovo IdeaPad Yoga SpecificationsLenovo IdeaPad Yoga Status indicators Status indicatorsFunction keys Function key combinationsScrew notices FRU replacement noticesRemoving and replacing an FRU Removal step of dummy card Dummy cardRemoval steps of keyboard KeyboardIdeaPad Yoga 11 Hardware Maintenance Manual Remove the four screws 1 and the six screws Keyboard bezelRemove the base cover in the direction shown by arrow Removal steps of screen rotation lock button board Screen rotation lock button boardRemove the battery pack in the direction shown by arrow Removal steps of battery pack Battery packIdeaPad Yoga 11 Hardware Maintenance Manual Removal steps of hard disk drive Volume button boardIdeaPad Yoga 11 Hardware Maintenance Manual Removal steps of PCI Express Mini Card for wireless LAN PCI Express Mini Card for wireless LANWhen installing Removal steps of Dimm SpeakersRemove the speakers in the direction shown by arrows Important notices for handling the system board System boardIdeaPad Yoga 11 Hardware Maintenance Manual Step Screw quantity Color Torque Removal steps of LCD unit LCD unitRemove the LCD unit in the direction shown by arrow Removal step of base cover Base coverLenovo IdeaPad Yoga Front view and right-side view LocationsBottom and Left-side view Parts list Overall Parts list-Overall Parts list-Keyboard IdeaPad Yoga 11 Hardware Maintenance Manual Miscellaneous parts Parts list-Miscellaneous partsParts list-2-pin power cords Power cordsPage Trademarks