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Lenovo B575E manual Remove the screw, Hardware Maintenance Manual

Models: B575E

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56Hardware Maintenance Manual

Remove the screw

3.

3

	Step		Screw (quantity)	Color	Torque

			M2 × 5 mm, flat-head, nylon-coated (1)	Black	1.6 kgfcm
	3		M2 × 5 mm, flat-head, nylon-coated (1)	Black	1.6 kgfcm

56Hardware Maintenance Manual

Image 62

Lenovo B575E manual Remove the screw, Hardware Maintenance Manual

Contents

Lenovo B575e Hardware Maintenance ManualFirst Edition July Copyright Lenovo Contents Copyright Lenovoii Hardware Maintenance Manual About this manual iv Hardware Maintenance Manual Chapter 1. Safety information General safetyElectrical safety Safety inspection guide Handling devices that are sensitive to electrostatic dischargeDANGER DANGER Safety notices multilingual translationsGrounding requirements Chapter 1. Safety information DANGER DANGER DANGER DANGER DANGER6 Hardware Maintenance Manual DANGERChapter 1. Safety information 8 Hardware Maintenance Manual PERIGO PERIGO PERIGO PERIGO PERIGO PERIGOChapter 1. Safety information PERIGO PERIGO DANGER DANGER DANGERVORSICHT 10 Hardware Maintenance ManualDANGER DANGER DANGER DANGER DANGER Chapter 1. Safety information VORSICHT VORSICHT VORSICHT VORSICHT12 Hardware Maintenance Manual VORSICHT VORSICHT VORSICHTChapter 1. Safety information 14 Hardware Maintenance Manual Chapter 1. Safety information 16 Hardware Maintenance Manual Chapter 1. Safety information 18 Hardware Maintenance Manual English Arabic Brazilian Portuguese French German Hebrew Japanese Laser compliance statement multilingual translationsChapter 1. Safety information Korean Spanish Traditional Chinese20 Hardware Maintenance Manual Chapter 1. Safety information 22 Hardware Maintenance Manual Chapter 1. Safety information 24 Hardware Maintenance Manual Chapter 1. Safety information 26 Hardware Maintenance Manual Before replacing parts Chapter 2. Important service informationStrategy for replacing FRUs Important information about replacing RoHS compliant FRUs Strategy for replacing a hard disk driveImportant notice for replacing a system board For products shipped after JuneThe following are not covered under warranty Chapter 3. General checkoutWhat to do first Power system checkout Checking the ac power adapterChecking the battery pack Checking operational charging32 Hardware Maintenance Manual Passwords Chapter 4. Related service informationRecovering the computer settings Power-on passwordSleep mode Power managementScreen blank mode Hibernation modeIf the timer conditions are satisfied in suspend mode 36 Hardware Maintenance Manual Specifications Chapter 5. Lenovo B575eTable 1. Status indicators Status indicatorsIntegrated Bluetooth on some models Integrated WiMAX 100/1000 Mbps Ethernet communicationThe following table describes the functions of Fn key combinations Fn key combinationsTable 1. Status indicators continued Table 2. Function key combinations40 Hardware Maintenance Manual Plastic to plastic Chapter 6. FRU replacement noticesScrew notices Logic card to plastic42 Hardware Maintenance Manual Removal steps of battery pack DANGER 1010 Battery packChapter 7. Removing and replacing a FRU DANGER1020 Bottom slot cover Removal steps of bottom slot cover1030 Hard disk drive Removal steps of hard disk drive assemblyRemoval steps of the optical drive 1040 Optical driveRemoval steps of hard disk drive bracket “1020 Bottom slot cover” on page 1050 Memory modulesFor access, remove these FRUs in order “1010 Battery pack” on page Chapter 7. Removing and replacing a FRU1060 PCI Express Mini Card for wireless LAN Removal steps of memory modulesChapter 7. Removing and replacing a FRU Removal steps of PCI Express Mini Card for wireless LAN1 . Then remove the screw 50 Hardware Maintenance Manual 1070 Backup batteryRemoval steps of backup battery DANGER “1020 Bottom slot cover” on page 1080 KeyboardFor access, remove these FRUs in order “1010 Battery pack” on page Chapter 7. Removing and replacing a FRU52 Hardware Maintenance Manual Removal steps of keyboardThe keyboard will open up slightly Chapter 7. Removing and replacing a FRU1090 Keyboard bezel 54 Hardware Maintenance Manualthat secure the keyboard bezel Removal steps of keyboard bezelRemove screws Chapter 7. Removing and replacing a FRU56 Hardware Maintenance Manual Remove the screwDetach the connectors Chapter 7. Removing and replacing a FRURemoval steps of LED board 1100 LED board and power boardRemoval steps of power board Removal steps of microphone assembly 1110 Microphone assembly1120 I/O board and RJ45 Ethernet board 60 Hardware Maintenance Manual Removal steps of I/O boardRemove the I/O board Chapter 7. Removing and replacing a FRU62 Hardware Maintenance Manual Removal steps of RJ45 Ethernet board1130 System board assembly Important notices for handling the system board64 Hardware Maintenance Manual Removal steps of system board1140 LCD unit Removal steps of LCD unit When installing66 Hardware Maintenance Manual 1150 Thermal fan assembly When installing Make sure that the connector is attached firmly Removal steps of thermal fan assemblyDetach the connector in the direction shown by the arrow 68 Hardware Maintenance Manual1160 Speaker assembly 1170 DC-in sub card and base cover Removal steps of speaker assemblyRemoval steps of DC-in sub card Chapter 7. Removing and replacing a FRU2010 LCD front bezel Applying labels to the base coverRemoval steps of LCD front bezel Removal steps of integrated camera 2020 Integrated camera2030 LCD panel, LCD cable, and hinges Removal steps of LCD panel and hinges Removal steps of LCD cable 2040 Antenna assemblyRemoval steps of antenna assembly Release the antenna cables from the cable guides of the LCD rear cover assembly and from the hinges in the direction shown by the arrows 78 Hardware Maintenance Manual Chapter 8. Locations Front view4 Security keyhole 5 ac power connector Bottom view1 Battery latch manual 2 Battery pack 3 Battery latch spring-loaded 6 Fan louvers 7 VGA port 8 HDMI port on some models 9 USB connector“Miscellaneous parts” on page “ac power adapters” on page Chapter 9. Parts listThis chapter contains the following lists of the service parts “Power cords” on page82 Hardware Maintenance Manual OverallTable 3. Parts list-Overall 121001091Table 3. Parts list-Overall continued Battery, 2200mA 6cell, 48Wh 3S2P SMP/LG L09M6Y02 3S2P 48Wh btyLHComm01LCD FRUs Table 3. Parts list-Overall continuedTable 5. Parts list - Keyboard Dafon KeyboardTable 4. Parts list - LCD 86 Hardware Maintenance Manual Table 5. Parts list - Keyboard Dafon continuedTable 6. Parts list - Keyboard Sunrex Language Table 6. Parts list - Keyboard Sunrex continuedTable 7. Parts list - Keyboard Chicony FRU noMiscellaneous parts ac power adaptersPower cords Table 7. Parts list - Keyboard Chicony continuedCountry or region Table 11. Parts list - 3-pin power cords Linetek continuedTable 12. Parts list - 3-pin power cords Longwell FRU no90 Hardware Maintenance Manual Table 12. Parts list - 3-pin power cords Longwell continuedTable 13. Parts list - 3-pin power cords Volex FRU no Table 13. Parts list - 3-pin power cords Volex continuedCountry or region 92 Hardware Maintenance Manual Morrisville, NC U.S.A Attention Lenovo Director of Licensing Appendix A. NoticesLenovo United States, Inc 1009 Think Place - Building One Electronic emissions notices TrademarksPage Part Number Printed in China 1P P/N