Lenovo 20L5 Hardware Maintenance Manual Download

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Appendix B. Abbreviation table

The following table lists all abbreviations and acronyms used in this manual.

Abbreviation

Term

third generation of mobile telecommunications technology

BGA

Ball Grid Array

BIOS

basic input/output system

CMOS

complementary metal-oxide semiconductor

COA

Certificate of Authentication

CRC

cyclic redundancy check

CRT

cathode ray tube

CRU

customer-replaceable unit

CTO

configure to order

EAIA

Enhanced Asset Information Area

ECA

Engineering Change Announcements

EEPROM

Electrically Erasable Programmable Read-Only Memory

EFI

Extensible Firmware Interface

EPO

emergency power-off

ESD

electrostatic discharge

European Union

FCC

Federal Communications Commission

FHD

Full High Definition

FRU

Field Replaceable Unit

GAV

General Announce Variant

GPU

graphics processing unit

High Definition

HDD

hard disk drive

HDMI

high-definition multimedia interface

ICs

integrated circuits

ICCID

integrate circuit card identity

ISO

International Standardization Organization

LAN

local area network

LCD

liquid crystal display

MAC

media access control

machine type

MTM

machine type and model

105

Summary of Contents for 20L5

Page 1: ...T480 Hardware Maintenance Manual ...

Page 2: ...er Appendix A Notices on page 103 First Edition January 2018 Copyright Lenovo 2018 LIMITED AND RESTRICTED RIGHTS NOTICE If data or software is delivered pursuant to a General Services Administration GSA contract use reproduction or disclosure is subject to restrictions set forth in Contract No GS 35F 05925 ...

Page 3: ... Using advanced startup options 31 Recovering your operating system if Windows 10 fails to start 32 Creating and using a recovery USB drive 32 Passwords 33 Power on password 33 Hard disk password 33 Supervisor password 33 How to remove the power on password 34 How to remove the hard disk password 34 Power management 35 Sleep mode 35 Hibernation mode 35 Symptom to FRU index 35 Numeric error codes 3...

Page 4: ...0 Thermal fan assembly 82 1160 Trackpad and trackpad cable 84 1170 System board 85 1180 Power button card 88 1190 Fingerprint reader card 88 1200 NFC module 90 1210 LCD unit 90 1220 Keyboard bezel assembly 92 2010 LCD bezel sheet 93 2020 LCD panel 94 2030 LCD hinge assembly 96 2040 Camera microphone module 98 2050 Camera and LED cable and LCD cable 99 2060 Wireless LAN WAN antenna assembly and LCD...

Page 5: ...leshoot problems Important This manual is intended only for trained service technicians who are familiar with ThinkPad products Use this manual along with the advanced diagnostic tests to troubleshoot problems effectively Before servicing a ThinkPad product be sure to read all the information under Chapter 1 Safety information on page 1 and Chapter 2 Important service information on page 21 Copyri...

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Page 7: ...r toolcase away from walk areas so that other people will not trip over it Do not wear loose clothing that can be trapped in the moving parts of a machine Make sure that your sleeves are fastened or rolled up above your elbows If your hair is long fasten it Insert the ends of your necktie or scarf inside clothing or fasten it with a nonconductive clip about 8 centimeters 3 inches from the end Do n...

Page 8: ...safety sections of maintenance information Use extreme care when measuring high voltages Regularly inspect and maintain your electrical hand tools for safe operational condition Do not use worn or broken tools and testers Never assume that power has been disconnected from a circuit First check that it has been powered off Always look carefully for possible hazards in your work area Examples of the...

Page 9: ...frayed or pinched cables 9 Check that the power supply cover fasteners screws or rivets have not been removed or tampered with Handling devices that are sensitive to electrostatic discharge Any computer part containing transistors or integrated circuits ICs should be considered sensitive to electrostatic discharge ESD ESD damage can occur when there is a difference in charge between objects Protec...

Page 10: ...ts Electrical grounding of the computer is required for operator safety and correct system function Proper grounding of the electrical outlet can be verified by a certified electrician Safety notices multilingual translations The safety notices in this section are provided in the following languages English Arabic Brazilian Portuguese French German Hebrew Japanese Korean Spanish Traditional Chines...

Page 11: ...DANGER DANGER DANGER DANGER DANGER Chapter 1 Safety information 5 ...

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Page 13: ...PERIGO PERIGO Chapter 1 Safety information 7 ...

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Page 15: ...PERIGO DANGER DANGER DANGER DANGER Chapter 1 Safety information 9 ...

Page 16: ...DANGER DANGER DANGER DANGER VORSICHT 10 T480 Hardware Maintenance Manual ...

Page 17: ...VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1 Safety information 11 ...

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Page 27: ...st UEFI BIOS is loaded to the system board before completing the service action To download software fixes drivers and UEFI BIOS go to https support lenovo com and follow the instructions on the screen Use the following strategy to prevent unnecessary expense for replacing and servicing FRUs If you are instructed to replace a FRU but the replacement does not correct the problem reinstall the origi...

Page 28: ...built and shipped directly to the customer The machine label and eSupport will load these products as the 4 character MT 4 character model and 2 character country code The model is CTO1 and the default country code is WW example 20AACTO1WW Special bid model This is a unique configuration that has been negotiated between Lenovo and the customer A unique machine type model MTM consists of a 4 charac...

Page 29: ...duct To get the general FRU list for a product do the following 1 Go to https support lenovo com 2 Click Parts Accessories 3 Follow the instructions on the screen to select product 4 Click Products and Parts Detail 5 On the PRODUCT AND PARTS DETAIL page click the Parts Detail tab to view the FRU list Note The FRU list is a general list of components and does not contain specific model information ...

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Page 31: ...ailures can occur for a variety of reasons that have nothing to do with a hardware defect such as cosmic radiation electrostatic discharge or software errors Consider replacing a FRU only when a problem recurs If you suspect that a FRU is defective clear the error log and run the test again If the error does not recur do not replace the FRU Be careful not to replace a nondefective FRU What to do f...

Page 32: ...e of non ThinkPad products prototype cards or modified options can lead to false indications of errors and invalid system responses 1 Identify the failing symptoms in as much detail as possible 2 Verify the symptoms Try to re create the failure by running the diagnostic test or by repeating the operation Diagnosing problems Many computer problems can be solved without outside assistance If you exp...

Page 33: ...ernal storage devices To run the UEFI diagnostic program do the following 1 Turn on the computer If the computer cannot be turned on go to Power system checkout on page 28 and check the power sources If an error code is displayed go to Symptom to FRU index on page 35 for error code descriptions and troubleshooting hints 2 When the logo screen is displayed repeatedly press and release the F10 key T...

Page 34: ...e computer cannot be turned on go to Power system checkout on page 28 and check the power sources If an error code is displayed go to Symptom to FRU index on page 35 for error code descriptions and troubleshooting hints 2 Connect an external optical drive to the computer and insert the CD into the optical drive 3 Restart the computer 4 When the logo screen is displayed repeatedly press and release...

Page 35: ...ter will not be charged or will be charged slowly Checking the removable battery and the operational charging Checking the removable battery This system supports only batteries specially designed for this specific system and manufactured by Lenovo or an authorized builder The system does not support unauthorized batteries or batteries designed for other systems If an unauthorized battery or a batt...

Page 36: ...ttery If the battery status icon in the Windows notification area indicates that the battery is not charging remove the battery and let it return to room temperature 3 Reinstall the battery If the battery is still not charging replace the battery 4 Check the battery status icon again If the same error still exists replace the system board Checking the coin cell battery To check the coin cell batte...

Page 37: ...p your files or remove them and then reinstall the Windows operating system To reset your computer do the following Note The graphical user interface GUI items of the operating system might change without notice 1 Open the Start menu and then click Settings Update Security Recovery 2 In the Reset this PC section click Get started 3 Follow the instructions on the screen to reset your computer Using...

Page 38: ...ity The actual USB capacity that is required depends on the size of the recovery image Attention The creation process will delete anything stored on the USB drive To avoid data loss make a backup copy of all the data that you want to keep To create a recovery USB drive do the following Note Ensure that your computer is connected to ac power during the following process 1 Connect a proper USB drive...

Page 39: ...rd disk password has been forgotten check whether a master hard disk password has been set If it has it can be used for access to the hard disk drive If no master hard disk password is available neither Lenovo nor Lenovo authorized service technicians provide any services to reset either the user or the master hard disk password or to recover data from the hard disk drive The hard disk drive can b...

Page 40: ...password 1 Turn on the computer 2 When the logo screen comes up immediately press F1 3 Type the supervisor password to enter the ThinkPad Setup program 4 Select Security 5 Select Password 6 Select Power On Password 7 Type the current supervisor password in the Enter Current Password field Then leave the Enter New Password field blank and press Enter twice 8 In the Changes have been saved window pr...

Page 41: ...n hibernation mode the following occurs The system status random access memory RAM video random access memory VRAM and setup data are stored on the hard disk drive or solid state drive The system is powered off Note If the computer enters the hibernation mode while it is docked to the docking station or the port replicator do not undock it before resuming normal operation If you do undock it and t...

Page 42: ...meric error codes Table 2 Numeric error codes Symptom or error FRU or action in sequence 0177 Bad SVP data stop POST task The checksum of the supervisor password in the EEPROM is not correct Replace the system board 0183 Bad CRC of Security Settings in EFI Variable Enter the ThinkPad Setup program The checksum of the Security settings in the EFI Variable is not correct 1 Run the ThinkPad Setup pro...

Page 43: ... the M 2 solid state drive 3 Replace the system board 2102 Detection error on Storage Device Main HDD 1 Reseat the hard disk drive or the solid state drive 2 Replace the hard disk drive or the solid state drive 3 Replace the system board 2110 Read error on Storage Device Main HDD 1 Reseat the hard disk drive 2 Replace the hard disk drive 3 Replace the system board 2111 Read error on Storage Device...

Page 44: ... operating system or programs This error occurs when the operating system or programs store large amounts of data in the variable storage All data needed for POST such as BIOS setup settings chipset or platform configuration data are stored in a separate UEFI variable storage Press F1 after the error message is displayed to enter ThinkPad Setup A dialog asks the user for confirmation to clean up t...

Page 45: ...ter by inserting a straightened paper clip into the emergency reset hole Wait for one minute Then reconnect all power resources 2 Replace the system board service provider only 0002 Internal bus error Replace the system board service provider only 0281 General embedded controller error Replace the system board service provider only 0282 Memory module error 1 Reinstall or replace the memory module ...

Page 46: ... Important The TFT LCD for the notebook computer contains many thin film transistors TFTs The presence of a small number of dots that are missing discolored or always lighted is characteristic of TFT LCD technology but excessive pixel problems can cause viewing concerns If the LCD you are servicing has two or less visible defective pixels it should not be considered faulty However if the LCD has t...

Page 47: ...agnostic tests did not identify the adapter or device that has failed if wrong devices are installed or if the system simply is not operating follow these procedures to isolate the failing FRU do not isolate FRUs that have no defects Verify that all attached devices are supported by the computer Verify that the power supply being used at the time of the failure is operating correctly See Power sys...

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Page 49: ... locating and identifying the various status indicators on your computer Note Depending on the model your computer might look different from the following illustrations 1 Camera status indicator When this indicator is on the camera is in use Copyright Lenovo 2018 43 ...

Page 50: ... The fingerprint reader is ready for tapping 3 Amber blinking The fingerprint cannot be authenticated 4 Caps Lock indicator When this indicator is on you can type uppercase letters by directly pressing the letter keys 5 Fn Lock indicator This indicator shows the status of Fn Lock function For more information see Chapter 6 Using the special keys on page 45 6 Speaker mute indicator When this indica...

Page 51: ...t the options of your preference Switch the key function between the standard F1 F12 function and the special function printed as an icon on each key When the Fn Lock indicator is off you can use the default function You can change the default function in the Keyboard Properties window Mute or unmute the speakers When the speakers are muted the indicator on the key is on If you mute the sound and ...

Page 52: ...ons on the screen to complete the setting On the Input page you can also define different functions for the key combinations with F12 such as Shift F12 Alt F12 or Ctrl F12 Key combinations Open the Snipping Tool program Fn B The Break key Fn K The ScrLK or Scroll Lock key Fn P The Pause key Fn S The SysRq key Fn Left Arrow key The Home key Fn Right Arrow key The End key Fn 4 Put the computer into ...

Page 53: ...ions of the hardware components on your computer Locating computer controls connectors and indicators This topic introduces the locations of the computer controls connectors and indicators Note Available on some models Front view Copyright Lenovo 2018 47 ...

Page 54: ...ark 11 Screen multi touch screen on some models Left side view 1 USB C connector 2 USB C connector Thunderbolt 3 compatible 3 Connector cover 4 Docking station connector 5 Fan louvers 6 Smart card slot Right side view 1 Audio connector 2 USB 3 1 connector Gen 1 3 HDMI connector 4 Always On USB 3 1 connector Gen 1 5 Ethernet connector 6 Media card slot 7 Security lock slot 48 T480 Hardware Maintena...

Page 55: ...an louvers 5 Keyboard drainage holes 6 Speakers 7 Emergency reset hole 8 Nano SIM card slot Locating FRUs and CRUs This topic introduces the following service parts Major FRUs and CRUs on page 51 LCD FRUs on page 53 Connector and cable guide on page 54 Chapter 7 Locations 49 ...

Page 56: ...ons to find the manual for your product You might be required to return the defective part that is replaced by the CRU When return is required 1 return instructions a prepaid shipping label and a container will be included with the replacement CRU and 2 you might be charged for the replacement CRU if Lenovo does not receive the defective CRU within thirty 30 days of your receipt of the replacement...

Page 57: ...ble 6 Major FRUs No FRU descriptions Self service CRU Optional service CRU 1 LCD unit No No 2 Trackpad cable No No 3 Trackpad No No 4 Keyboard bezel assembly No No 5 Power button board and cable No No Chapter 7 Locations 51 ...

Page 58: ... No 13 RJ45 bracket No No 14 Removable battery Yes No 15 Nano SIM card on some models Yes No 16 Base cover assembly Yes No 17 Built in battery No No 18 Speaker assembly No No 19 Thermal fan assembly No No 20 System board No No 21 Coin cell battery Yes No 22 Memory modules No Yes 23 Smart card reader and cable on some models No No 24 NFC antenna on some models No No 25 NFC module on some models No ...

Page 59: ...n some models No No 3 LCD panel No No 4 LCD cable No No 5 Camera LED cable No No 6 Conventional camera microphone module on some models No No 7 Infrared camera microphone module on some models No No 8 Wireless LAN antenna and wireless WAN antenna on some models No No 9 LCD rear cover support bracket assembly No No Chapter 7 Locations 53 ...

Page 60: ...et support rubber Microphone rubbers NFC ferrite sheet NFC sponge Smartcard safety mylar Tape for WWAN antenna fix Thermal pad for SSD in WWAN slot Mylar for DIMM slot Mylar for WWAN connector Absorber for WWAN slot Absorber for DIMM slot Cap for docking station connector Docking station rubber No No GEO label assembly No No Connector and cable guide This section provides information for Lenovo au...

Page 61: ...ct the removable battery to this connector 4 Nano SIM card slot external No Insert the nano SIM card into this slot 5 Coin cell battery connector internal Coin cell battery cable The coin cell battery comes with cable Connect the cable to this connector 6 LCD connector internal LCD cable Connect one end to the LCD panel and the other end to this connector 7 USB C connector external No Connect USB ...

Page 62: ...d connector internal Trackpad cable Connect the Trackpad cable to this connector 18 Speaker connector internal Speaker assembly cable The speaker assembly comes with cable Connect the cable to this connector 19 Wireless WAN card slot internal No Insert the wireless WAN card into this slot 20 Audio connector external No Connect headphones or a headset with 3 5 mm 0 14 inch 4 pole plug to this conne...

Page 63: ...to the LCD rear cover Then connect the end a of the cable to this connector NFC module and cable Table 11 NFC module It em Connector location Internal cable required Cable connection 1 NFC module connector internal NFC module cable Connect one end to the NFC module connector on the system board and the other end to this connector 2 NFC antenna connector internal NFC antenna cable Connect the NFC a...

Page 64: ...ernal Trackpad cable Connect one end to the trackpad connector on the system board and the other end to this connector Looking up FRU information For detailed FRU information including part numbers descriptions and substitution part numbers go to https support lenovo com partslookup 58 T480 Hardware Maintenance Manual ...

Page 65: ...your product You might be required to return the defective part that is replaced by the CRU When return is required 1 return instructions a prepaid shipping label and a container will be included with the replacement CRU and 2 you might be charged for the replacement CRU if Lenovo does not receive the defective CRU within thirty 30 days of your receipt of the replacement CRU See your Lenovo Limite...

Page 66: ...l number of the system unit on the bottom of the computer try the following method to get the number Note Before you perform the operation ensure that the UEFI Legacy setting within the Startup menu in the ThinkPad Setup program is set to UEFI Only 1 Connect a USB memory key to the computer 2 Go to https www lenovo com maintenanceutilities and follow the instructions on the screen to create a Main...

Page 67: ...Type 2 under Enter the action desired then press Enter The Auto UUID generation utility interface is displayed 6 Type y under Change UUID OK Y N then press Enter A new UUID is created and written If a valid UUID already exists it is not overwritten Reading or writing the ECA information Information on Engineering Change Announcements ECA is stored in the EEPROM of the system board The electronic s...

Page 68: ...ct 1 Write ECA rework number from EEPROM and follow the instruction To write box build date select 4 Write box build date from EEPROM and follow the instruction on the screen If the system board is being replaced try to read the ECA information from the old system board and transfer the information to the new system If the system board is inoperable this will not be possible 62 T480 Hardware Maint...

Page 69: ...o observe the following general guidelines 1 Do not try to service any computer unless you have been trained and certified An untrained person runs the risk of damaging parts 2 Before replacing any FRU review Chapter 8 FRU replacement notices on page 59 3 Begin by removing any FRUs that have to be removed before replacing the failing FRU Any such FRUs are listed at the beginning of each FRU replac...

Page 70: ...ool 1010 Removable battery Important notices for replacing a removable battery Attention Lenovo has no responsibility for the performance or safety of unauthorized batteries and provides no warranties for failures or damage arising out of their use Lenovo provides a diagnostic program to do an automatic battery diagnostic test which can determine if the removable battery is defective A removable b...

Page 71: ...ng the built in battery on page 64 For access remove the following FRU 1010 Removable battery on page 64 Removal steps of the nano SIM card 1030 Base cover assembly Note Before you start the servicing disable the built in battery See Disabling the built in battery on page 64 Chapter 9 Removing or replacing a FRU 65 ...

Page 72: ...steps of the base cover assembly 1 Remove the connector cover 2 Loosen the screws 1 3 Press the locations a on the base cover assembly with your thumbs and pivot the hooks b upward at the same time to disengage the hooks from the chassis 66 T480 Hardware Maintenance Manual ...

Page 73: ...gers into the holes d to pivot this area of the base cover assembly upward as shown This area of the base cover assembly will be disengaged from the chassis 5 Remove the base cover assembly in the numeric order as shown Chapter 9 Removing or replacing a FRU 67 ...

Page 74: ...ate of authenticity label 7 SVT label 8 Asset tag 9 China WWAN modem label 10 GML label 11 Country label 1040 Memory module Note Before you start the servicing disable the built in battery See Disabling the built in battery on page 64 For access remove these FRUs in order 1010 Removable battery on page 64 1030 Base cover assembly on page 65 68 T480 Hardware Maintenance Manual ...

Page 75: ... the built in battery See Disabling the built in battery on page 64 For access remove these FRUs in order 1010 Removable battery on page 64 1030 Base cover assembly on page 65 Attention Do not drop the drive or apply any physical shock to it The drive is sensitive to physical shock Improper handling can cause damage and permanent loss of data Before removing the drive have the user make a backup c...

Page 76: ...Removal steps of the 2 5 inch storage drive 70 T480 Hardware Maintenance Manual ...

Page 77: ...Removal steps of the M 2 solid state drive Chapter 9 Removing or replacing a FRU 71 ...

Page 78: ...181 Nm 1 85 kgf cm Step Screw quantity Color Torque 9 M2 3 mm flat head nylon coated 1 Black 0 181 Nm 1 85 kgf cm When installing Ensure that the hard disk drive or solid state drive is firmly attached and the tape does not cover the speaker 72 T480 Hardware Maintenance Manual ...

Page 79: ... 0 181 Nm 1 85 kgf cm When installing Plug the orange cable into the connector labeled MAIN on the card and plug the blue cable into the connector labeled AUX on the card If a green cable comes with your computer plug the cable into the connector with the silkscreen GPS 1070 Wireless LAN module Note Before you start the servicing disable the built in battery See Disabling the built in battery on p...

Page 80: ...N or 2 on the card and plug the black cable into the connector labeled AUX or 1 on the card 1080 M 2 solid state drive in the Wireless WAN card slot Note Before you start the servicing disable the built in battery See Disabling the built in battery on page 64 For access remove these FRUs in order 1010 Removable battery on page 64 1030 Base cover assembly on page 65 74 T480 Hardware Maintenance Man...

Page 81: ...ure that the M 2 solid state drive is securely seated in the wireless WAN card slot 1090 Keyboard Note Before you start the servicing disable the built in battery See Disabling the built in battery on page 64 For access remove these FRUs 1010 Removable battery on page 64 Removal steps of the keyboard Loosen the two screws that secure the keyboard Chapter 9 Removing or replacing a FRU 75 ...

Page 82: ... as shown to release the latches from the keyboard bezel Pivot the keyboard slightly upward as shown by the arrow 1 until you can see the connectors on the bottom side of the keyboard Then turn over the keyboard as shown by the arrow 2 76 T480 Hardware Maintenance Manual ...

Page 83: ...vicing disable the built in battery See Disabling the built in battery on page 64 For access remove these FRUs in order 1010 Removable battery on page 64 1030 Base cover assembly on page 65 DANGER Use only the authorized battery specified for your computer Any other battery could ignite or explode Chapter 9 Removing or replacing a FRU 77 ...

Page 84: ...irmly 1110 Speaker assembly Note Before you start the servicing disable the built in battery See Disabling the built in battery on page 64 For access remove these FRUs in order 1010 Removable battery on page 64 1030 Base cover assembly on page 65 Removal steps of the speaker assembly 78 T480 Hardware Maintenance Manual ...

Page 85: ...64 For access remove these FRUs in order 1010 Removable battery on page 64 1030 Base cover assembly on page 65 Important notices for replacing a built in battery Attention Lenovo has no responsibility for the performance or safety of unauthorized batteries and provides no warranties for failures or damage arising out of their use Lenovo provides a diagnostic program to do an automatic battery diag...

Page 86: ... steps of the built in battery DANGER Use only the authorized battery specified for your computer Any other battery could ignite or explode Step Screw quantity Color Torque 2 M2 3 mm small head nylon coated 2 Black 0 181 Nm 1 85 kgf cm 1130 Smart card reader assembly Note Before you start the servicing disable the built in battery See Disabling the built in battery on page 64 For access remove the...

Page 87: ...on coated 2 Black 0 181 Nm 1 85 kgf cm When installing Ensure that the connector of the smart card reader is attached firmly 1140 I O bracket and RJ45 bracket Note Before you start the servicing disable the built in battery See Disabling the built in battery on page 64 For access remove these FRUs 1010 Removable battery on page 64 1030 Base cover assembly on page 65 Chapter 9 Removing or replacing...

Page 88: ...ted 3 Sliver 0 181 Nm 1 85 kgf cm 1150 Thermal fan assembly Note Before you start the servicing disable the built in battery See Disabling the built in battery on page 64 For access remove these FRUs in order 1010 Removable battery on page 64 1030 Base cover assembly on page 65 Removal steps of the thermal fan assembly Notes Loosen the screws in ascending alphabetical order as illustrated 82 T480 ...

Page 89: ...rmal grease at an amount of 0 2 grams on the parts marked a and b as shown in the following illustration Either too much or too less application of grease can cause a thermal problem due to imperfect contact with a component For the new thermal fan assembly you must peel off the thin film from the rubbers For integrated graphics models For discrete graphics models Chapter 9 Removing or replacing a...

Page 90: ...lt in battery See Disabling the built in battery on page 64 For access remove these FRUs in order 1010 Removable battery on page 64 1030 Base cover assembly on page 65 1040 Memory module on page 68 Removal steps of the trackpad and the trackpad cable 84 T480 Hardware Maintenance Manual ...

Page 91: ...a hard bench can subject the accelerometer to as much as 6000 G s of shock 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 At every point in the process be sure not to drop or stack the system board If you put a system board down be sure to put it only on a padded surface such as an ESD mat or a corruga...

Page 92: ...77 1110 Speaker assembly on page 78 1120 Built in battery on page 79 1140 I O bracket and RJ45 bracket on page 81 1150 Thermal fan assembly on page 82 The following components soldered on the top side of the system board are extremely sensitive When you service the system board avoid any kind of rough handling a Graphics processing unit GPU b Central processing unit CPU c Embedded controller d Acc...

Page 93: ... the system board Step Screw quantity Color Torque 15 M2 3 mm flat head nylon coated 6 Black 0 181 Nm 1 85 kgf cm When installing Ensure that the connectors are attached firmly Chapter 9 Removing or replacing a FRU 87 ...

Page 94: ...e 73 1090 Keyboard on page 75 1100 Coin cell battery on page 77 1110 Speaker assembly on page 78 1120 Built in battery on page 79 1130 Smart card reader assembly on page 80 1140 I O bracket and RJ45 bracket on page 81 1150 Thermal fan assembly on page 82 1170 System board on page 85 Removal steps of the power button card Step Screw quantity Color Torque 1 M2 3 mm flat head nylon coated 2 Black 0 1...

Page 95: ... page 74 1070 Wireless LAN module on page 73 1090 Keyboard on page 75 1100 Coin cell battery on page 77 1110 Speaker assembly on page 78 1120 Built in battery on page 79 1130 Smart card reader assembly on page 80 1140 I O bracket and RJ45 bracket on page 81 1150 Thermal fan assembly on page 82 1170 System board on page 85 Removal steps of the fingerprint reader card Step Screw quantity Color Torqu...

Page 96: ...t on page 74 1070 Wireless LAN module on page 73 1090 Keyboard on page 75 1100 Coin cell battery on page 77 1110 Speaker assembly on page 78 1120 Built in battery on page 79 1130 Smart card reader assembly on page 80 1140 I O bracket and RJ45 bracket on page 81 1150 Thermal fan assembly on page 82 1170 System board on page 85 Removal steps of the NFC module 1210 LCD unit Note Before you start the ...

Page 97: ...Removal steps of the LCD unit Step Screw quantity Color Torque 9 M2 5 4 mm flat head nylon coated 4 Black 0 293 Nm 3 0 kgf cm Chapter 9 Removing or replacing a FRU 91 ...

Page 98: ...ly Note Before you start the servicing disable the built in battery See Disabling the built in battery on page 64 For access remove these FRUs in order 1010 Removable battery on page 64 1020 Nano SIM card on page 65 1030 Base cover assembly on page 65 1040 Memory module on page 68 1050 Internal storage drive on page 69 1060 Wireless WAN card on page 73 or 1080 M 2 solid state drive in the Wireless...

Page 99: ...page 82 1170 System board on page 85 1180 Power button card on page 88 1190 Fingerprint reader card on page 88 1200 NFC module on page 90 1210 LCD unit on page 90 2010 LCD bezel sheet Note Before you start the servicing disable the built in battery See Disabling the built in battery on page 64 For access remove these FRUs in order 1010 Removable battery on page 64 1030 Base cover assembly on page ...

Page 100: ...is removed Ensure that all the latches are attached firmly 2020 LCD panel Note Before you start the servicing disable the built in battery See Disabling the built in battery on page 64 For access remove these FRUs in order 1010 Removable battery on page 64 1030 Base cover assembly on page 65 94 T480 Hardware Maintenance Manual ...

Page 101: ...D panel FHD panel or touch panel Step Screw quantity Color Torque 1 M2 2 5 mm small head nylon coated 4 Sliver 0 181 Nm 1 85 kgf cm When installing Ensure that the connector of the LCD cable is attached firmly Chapter 9 Removing or replacing a FRU 95 ...

Page 102: ... FRUs in order 1010 Removable battery on page 64 1030 Base cover assembly on page 65 1210 LCD unit on page 90 2010 LCD bezel sheet on page 93 2020 LCD panel on page 94 Removal step of the LCD hinge assembly for models with HD panel FHD panel or touch panel For models with brackets Step Screw quantity Color Torque 1 M2 5 2 5 mm small head nylon coated 4 Sliver 0 293 Nm 3 0 kgf cm 96 T480 Hardware M...

Page 103: ...For models without brackets Step Screw quantity Color Torque 1 M2 5 2 5 mm small head nylon coated 4 Sliver 0 293 Nm 3 0 kgf cm Chapter 9 Removing or replacing a FRU 97 ...

Page 104: ... small head nylon coated 2 Sliver 0 181 Nm 1 85 kgf cm 2040 Camera microphone module Note Before you start the servicing disable the built in battery See Disabling the built in battery on page 64 For access remove these FRUs in order 1010 Removable battery on page 64 1030 Base cover assembly on page 65 1210 LCD unit on page 90 2010 LCD bezel sheet on page 93 2020 LCD panel on page 94 98 T480 Hardw...

Page 105: ...le Note Before you start the servicing disable the built in battery See Disabling the built in battery on page 64 For access remove these FRUs in order 1010 Removable battery on page 64 1030 Base cover assembly on page 65 1210 LCD unit on page 90 2010 LCD bezel sheet on page 93 2020 LCD panel on page 94 Chapter 9 Removing or replacing a FRU 99 ...

Page 106: ...n 2060 Wireless LAN WAN antenna assembly and LCD rear cover assembly Note Before you start the servicing disable the built in battery See Disabling the built in battery on page 64 For access remove these FRUs in order 1010 Removable battery on page 64 1030 Base cover assembly on page 65 1210 LCD unit on page 90 2010 LCD bezel sheet on page 93 2020 LCD panel on page 94 2030 LCD hinge assembly on pa...

Page 107: ... When installing Route the cables as shown in the following illustration Attention As you route the cables ensure that they are not subject to any tension Tension could cause the cables to be damaged by the cable guides or a wire to be broken Chapter 9 Removing or replacing a FRU 101 ...

Page 108: ...Wireless LAN auxiliary antenna black b Wireless WAN auxiliary antenna blue available on some models c Wireless WAN main antenna orange available on some models d Wireless LAN main antenna grey 102 T480 Hardware Maintenance Manual ...

Page 109: ...e publication Lenovo may make improvements and or changes in the product s and or the program s described in this publication at any time without notice The products described in this document are not intended for use in implantation or other life support applications where malfunction may result in injury or death to persons The information contained in this document does not affect or change Len...

Page 110: ...ovo logo ThinkPad ThinkPad logo TrackPoint Thunderbolt is a trademark of Intel Corporation or its subsidiaries in the U S and or other countries Microsoft Windows and Windows Server are trademarks of the Microsoft group of companies The terms HDMI and HDMI High Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC in the United States and other countries Oth...

Page 111: ...ng Change Announcements EEPROM Electrically Erasable Programmable Read Only Memory EFI Extensible Firmware Interface EPO emergency power off ESD electrostatic discharge EU European Union FCC Federal Communications Commission FHD Full High Definition FRU Field Replaceable Unit GAV General Announce Variant GPU graphics processing unit HD High Definition HDD hard disk drive HDMI high definition multi...

Page 112: ...J registered jack SATA Serial Advanced Technology Attachment SIM subscriber identity module SVP supervisor password TFTs thin film transistors UEFI Unified Extensible Firmware Interface USB Universal Serial Bus UUID universally unique identifier VGA video graphics array VRAM video random access memory WAN wide area network WQHD wide quad high definition 106 T480 Hardware Maintenance Manual ...

Page 113: ......

Page 114: ...Part Number SP40K05014 Printed in 1P P N SP40K05014 1PSP40K05014 ...

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Summary of Contents for 20L5

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Lenovo 20L5, Hardware Maintenance Manual

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Summary of Contents for 20L5

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