Lenovo B575 manual System board, Important notices for handling the system board

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Lenovo B575

1100 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 Battery pack” on page 34

“1020 Dummy card” on page 35

“1030 Hard disk drive(HDD)/Memory/Mini PCI Express Card slot compartment cover” on page 36

“1040 Hard disk drive” on page 37

“1050 Optical drive” on page 38

“1060 DIMM” on page 39

“1070 PCI Express Mini Card for wireless LAN/WAN” on page 40

“1080 Keyboard” on page 42

“1090 Keyboard bezel” on page 45

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Contents Lenovo B575 Page Contents Lenovo B575 About this manualSafety information General safety Electrical safety Lenovo B575 Hardware Maintenance Manual Safety inspection guide Grounding requirements Safety notice Safety notices multilingual translationsLenovo B575 Hardware Maintenance Manual Safety information Lenovo B575 Hardware Maintenance Manual Safety information Lenovo B575 Hardware Maintenance Manual Safety information Laser compliance statement Safety information Strategy for replacing FRUs Before replacing partsImportant notice for replacing a system board Strategy for replacing a hard disk driveOriginal part Important information about replacing RoHS compliant FRUsGeneral checkout What to do first Following are not covered under warrantyChecking operational charging Power system checkoutChecking the AC adapter Checking the battery pack Restoring the factory contents by using OneKey Recovery Related service informationSupervisor password PasswordsPower-on password Sleep standby mode Power managementScreen blank mode Hibernation mode Feature Description SpecificationsWlan Indicator Meaning Status indicatorsFlashing white Blinking whiteOff Key combination Description Fn key combinationsScrew notices FRU replacement noticesPlastic to plastic Logic card to plasticRemoving and replacing an FRU Removal steps of battery pack Battery packRemoval steps of dummy cards Dummy cardLoosen five screws a, then remove the compartment cover b Step Screw quantity Color Torque Hard disk driveRemoval steps of optical drive Optical driveRemoval steps of Dimm DimmRemoval steps of PCI Express Mini Card for wireless LAN/WAN PCI Express Mini Card for wireless LAN/WANWhen installing Removal steps of keyboard KeyboardLenovo B575 Lenovo B575 Hardware Maintenance Manual Removal steps of keyboard bezel Keyboard bezel Remove the screw c Lenovo B575 M2 × 3.5 mm, flat-head, nylok-coated Black Kgfcm Important notices for handling the system board System boardRemoval steps of system board Lenovo B575 Removal steps of LCD unit LCD unitRemove the LCD unit in the direction shown by arrows c Removal steps of fan assembly and heat sink assembly Fan assembly and Heat Sink assemblyLenovo B575 Base cover, speakers and bluetooth card Lenovo B575 Removal steps of LCD front bezel LCD front bezelRemoval steps of LCD panel, LCD cable and hinges LCD panel, LCD cable and hingesM2 × 2.5, flat-head, nylokcoated Black Kgfcm Lenovo B575 Removal steps of integrated camera Integrated cameraRemoval steps of antenna assembly and LCD cover Antenna assembly and LCD coverFront view LocationsRight-side view Bottom and Left-side view Parts list Overall Parts list-Overall LA57 Lower Case UMA NEW W/SPEAKER/DC-IN LA57 HDD Door Assy LCD FRUs 15.6-in. HD TFT Keyboard Lenovo B575 Miscellaneous parts Parts list-Miscellaneous partsAC adapters Parts list-3-pin AC adaptersParts list-3-pin power cords Power cordsLenovo B575 Lenovo B575 Hardware Maintenance Manual Page Trademarks