Lenovo U300E manual System board, Important notices for handling the system board

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Lenovo IdeaPad U300e Hardware Maintenance Manual

1070 System board

Important notices for handling the system board:

When handling the system board, bear the following in mind.

Be careful not to drop the system board on a bench top that has a hard surface, such as metal, wood, or composite.

Avoid rough handling of any kind.

In the whole process, make sure not to drop or stack the system board.

If you put a system board down, make sure to put it only on a padded surface such as an ESD mat or conductive corrugated material.

For access, remove these FRUs in order:

•• “1010 Base cover” on page 33

•• “1020 Battery pack” on page 35

•• “1030 Hard disk drive” on page 36

•• “1050 PCI Express Mini Card for wireless LAN” on page 38

•• “1060 Fan assembly and Heat Sink assembly” on page 40

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Contents Lenovo IdeaPad U300e First Edition Oct Copyright Lenovo 2011. All rights reserved Contents About this manual Safety information General safety Electrical safety Lenovo IdeaPad U300e Hardware Maintenance Manual Safety inspection guide Grounding requirements Safety notices multilingual translations Safety noticeLenovo IdeaPad U300e Hardware Maintenance Manual Safety information Lenovo IdeaPad U300e Hardware Maintenance Manual Safety information Lenovo IdeaPad U300e Hardware Maintenance Manual Safety information Laser compliance statement Safety information Important service information Strategy for replacing FRUsStrategy for replacing a hard disk drive Important notice for replacing a system boardImportant information about replacing RoHS compliant FRUs General checkout Following are not covered under warranty What to do firstChecking the AC adapter Power system checkoutChecking operational charging Lenovo IdeaPad U300e Hardware Maintenance Manual Related service information Restoring the factory contents by using OneKey RecoveryPower-on password PasswordsSupervisor password Screen blank mode Power managementSleep standby mode Hibernation mode Specifications Lenovo IdeaPad U300eSpecifications Status indicators Status indicatorsFunction key combinations HotkeyFRU replacement notices Screw noticesRemoving and replacing an FRU Base cover Removal steps of base coverLenovo IdeaPad U300e Hardware Maintenance Manual Battery pack Removal steps of battery packHard disk drive Removal steps of hard disk driveDimm Removal steps of DimmPCI Express Mini Card for wireless LAN Removal steps of PCI Express Mini Card for wireless LANWhen installing Fan assembly and Heat Sink assembly Removal steps of fan assembly and heat sink assemblyLenovo IdeaPad U300e System board Important notices for handling the system boardRemoval steps of system board Lenovo IdeaPad U300e Hardware Maintenance Manual Speakers and microphone Removal steps of speakers and microphoneRemoval steps of the speakers and microphone LCD unit Removal steps of LCD unitWhen installing Keyboard and keyboard bezel Removal steps of keyboard and keyboard bezelM2 × 3 mm, flat-head, nylok-coated Black M2 × 5 mm, flat-head, nylok-coated Black Lenovo IdeaPad U300e Hardware Maintenance Manual Locations Front viewRight-side view Bottom and Left-side viewParts list Overall Parts list-Overall No. FRU FRU noLenovo IdeaPad U300e Hardware Maintenance Manual Parts list-Keyboard KeyboardLenovo IdeaPad U300e Hardware Maintenance Manual Parts list-Miscellaneous parts Miscellaneous partsParts list-AC adapters AC adaptersPower cords Parts list-3-pin power cords145000525 145000553 Parts list-2-pin power cords UK 2PINLenovo IdeaPad U300e Lenovo IdeaPad U300e Hardware Maintenance Manual Trademarks