Lenovo 20MU Hardware Maintenance Manual Download

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A485
Hardware Maintenance Manual

Summary of Contents for 20MU

Page 1: ...A485 Hardware Maintenance Manual ...

Page 2: ...nder Appendix A Notices on page 97 First Edition June 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: ...embly 78 1150 Trackpad and trackpad cable 80 1160 System board 81 1170 Power button card and cable 83 1180 Fingerprint reader assembly 84 1190 LCD unit 85 1200 Keyboard bezel assembly 87 2010 LCD bezel assembly 88 2020 LCD panel 89 2030 LCD hinge assembly 90 2040 Camera microphone module 92 2050 Camera and LED cable and LCD cable 93 2060 Wireless LAN WAN antenna assembly 94 2070 LCD rear cover ass...

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 ...

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

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Page 19: ...Chapter 1 Safety information 13 ...

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Page 21: ...Chapter 1 Safety information 15 ...

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Page 25: ...Chapter 1 Safety information 19 ...

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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: ...uilt 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 charact...

Page 29: ...2 Type the machine type in the corresponding field to get a general FRU list or type the serial number for more detailed FRU information Chapter 2 Important service information 23 ...

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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: ... use 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 ...

Page 33: ...rnal 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 Th...

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: ...er 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 batte...

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: ...s 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 then try to resume normal operation you will get an error...

Page 42: ... 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 program The settings will be...

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: ...ctions 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 4 Put the computer into sleep mode To wake up the computer press the Fn key or the power button Fn Q Press Fn Q to toggle between the high performance mode and the quiet mode of L...

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: ...stick 10 Screen multi touch screen available on some models Left side view 1 USB C connectors power connectors 2 Docking station connector 3 Fan louvers 4 Smart card slot Right side view 1 Audio connector 2 USB 3 1 connector Gen 2 3 HDMI connector 4 Always On USB 3 1 connector Gen 1 5 Ethernet connector 6 Media card slot 7 Mini security lock slot Bottom view 48 A485 Hardware Maintenance Manual ...

Page 55: ... Lenovo will ship the CRU to you CRU information and replacement instructions are shipped with your product and are available from Lenovo at any time upon request You can find a list of CRUs for your product in this Hardware Maintenance Manual An electronic version of this manual can be found at https support lenovo com Follow the on screen instructions to find the manual for your product You migh...

Page 56: ...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 50 A485 Hardware Maintenance Manual ...

Page 57: ... drive adapter on some models Yes No 12 Internal storage drive cable Yes No 13 Removable battery Yes No 14 Nano SIM card on some models Yes No 15 Base cover assembly Yes No 16 Built in battery No No 17 Speaker assembly No Yes 18 Thermal fan assembly No No 19 System board No No 20 Coin cell battery Yes No 21 Memory modules Yes No 22 Smart card reader and cable on some models No No 23 Keyboard No Ye...

Page 58: ... 4 Camera LED cable No No 5 Conventional camera microphone module on some models No No 6 Infrared camera microphone module on some models No No 7 Wireless LAN antenna and wireless WAN antenna on some models No No 8 LCD rear cover support brackets No No 9 LCD hinge assembly No No 10 LCD rear cover assembly No No 52 A485 Hardware Maintenance Manual ...

Page 59: ...bers Smart card 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 Docking station rubber No No GEO label assembly No No Connector and cable guide This section provides information for Lenovo authorized service technicians to help identify connectors and cables for replacement purpose To...

Page 60: ...ctor 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 connectors power connectors external No Connect USB C compatible devices...

Page 61: ...or internal Speaker assembly cable The speaker assembly comes with the cable Connect the cable to this connector 17 Wireless WAN card slot internal No Insert the wireless WAN card into this slot 18 Audio connector external No Connect headphones or a headset with 3 5 mm 0 14 inch 4 pole plug to this connector 19 USB 3 1 connector Gen 2 external No Connect USB compatible devices to this connector 20...

Page 62: ... end c of the cable to the camera LED connector on the system board and connect the end b of the cable to the LCD rear cover Then connect the end a of the cable 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 56 A485 Hardware Maintenance Manual ...

Page 63: ...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 64: ...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 65: ...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 66: ...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 60 A485 Hardware Maint...

Page 67: ...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 57 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 68: ...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 69: ...ng the built in battery on page 62 For access remove the following FRU 1010 Removable battery on page 62 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 62 Chapter 9 Removing or replacing a FRU 63 ...

Page 70: ...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 3 Press the location c with your thumb and insert your fingers 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 64 A485 Hardware Maintenance Manual ...

Page 71: ...Remove the base cover assembly in the numeric order as shown Applying labels to the base cover assembly The following illustration shows the location of each label Chapter 9 Removing or replacing a FRU 65 ...

Page 72: ...page 63 1030 Base cover assembly on page 63 Removal steps of the memory module When installing Insert the notched end of the memory module into the memory slot Press the memory module in firmly and pivot it downward until it snaps into place Ensure that the memory module is firmly installed in the slot and does not move easily 1050 Internal storage drive Note Before you start the servicing disable...

Page 73: ...hysical shock Improper handling can cause damage and permanent loss of data Before removing the drive have the user make a backup copy of all the information on it if possible Never remove the drive while the system is operating or in suspend mode Removal steps of the 2 5 inch storage drive Chapter 9 Removing or replacing a FRU 67 ...

Page 74: ...Removal steps of the M 2 solid state drive 68 A485 Hardware Maintenance Manual ...

Page 75: ...1 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 Chapter 9 Removing or replacing a FRU 69 ...

Page 76: ...Color Torque 3 M2 3 mm flat head nylon coated 1 Black 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 1070 Wireless LAN module Note Before you start the servicing disable the built in battery See Disabling the built in battery on page 62 For access remove these FRUs in order 10...

Page 77: ...d 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 62 For access remove these FRUs in order 1010 Removable battery on page 62 1020 Nano SIM card on page 63 1030 Base cover assembly on page 63 Chapter 9 Removing ...

Page 78: ...Ensure 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 62 For access remove this FRU 1010 Removable battery on page 62 Removal steps of the keyboard Loosen the two screws that secure the keyboard 72 A485 Hardware Maintenance Manual ...

Page 79: ...s 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 Chapter 9 Removing or replacing a FRU 73 ...

Page 80: ...e the built in battery See Disabling the built in battery on page 62 For access remove these FRUs in order 1010 Removable battery on page 62 1020 Nano SIM card on page 63 1030 Base cover assembly on page 63 DANGER Use only the authorized battery specified for your computer Any other battery could ignite or explode 74 A485 Hardware Maintenance Manual ...

Page 81: ...r assembly Note Before you start the servicing disable the built in battery See Disabling the built in battery on page 62 For access remove these FRUs in order 1010 Removable battery on page 62 1020 Nano SIM card on page 63 1030 Base cover assembly on page 63 Removal steps of the speaker assembly Chapter 9 Removing or replacing a FRU 75 ...

Page 82: ... remove these FRUs in order 1010 Removable battery on page 62 1020 Nano SIM card on page 63 1030 Base cover assembly on page 63 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 autom...

Page 83: ...eps 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 4 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 62 For access remove these ...

Page 84: ...ylon 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 Thermal fan assembly Note Before you start the servicing disable the built in battery See Disabling the built in battery on page 62 For access remove these FRUs in order 1010 Removable battery on page 62 1020 Nano SIM card on page 63 1030 Base cover assembly on page 6...

Page 85: ...you attach the thermal fan assembly to the computer apply thermal grease at an amount of 0 2 grams on the part marked a 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 Chapter 9 Removing or replacing a FRU 7...

Page 86: ...10 Removable battery on page 62 1020 Nano SIM card on page 63 1030 Base cover assembly on page 63 1040 Memory module on page 66 1050 Internal storage drive on page 66 1120 Built in battery on page 76 Removal steps of the trackpad and the trackpad cable Step Screw quantity Color Torque 6 M2 L2 8 mm flat head nylon coated 4 Black 0 181 Nm 1 85 kgf cm 80 A485 Hardware Maintenance Manual ...

Page 87: ...t only on a padded surface such as an ESD mat or a corrugated conductive material Note Before you start the servicing disable the built in battery See Disabling the built in battery on page 62 For access remove these FRUs in order 1010 Removable battery on page 62 1020 Nano SIM card on page 63 1030 Base cover assembly on page 63 1040 Memory module on page 66 1060 Wireless WAN card on page 70 or 10...

Page 88: ...of the system board Step Screw quantity Color Torque 1 M2 3 5 mm flat head nylon coated 3 Silver 0 181 Nm 1 85 kgf cm 3 M2 4 mm flat head nylon coated 3 Black 0 181 Nm 1 85 kgf cm 82 A485 Hardware Maintenance Manual ...

Page 89: ...ack 0 181 Nm 1 85 kgf cm When installing Ensure that the connectors are attached firmly 1170 Power button card and cable Note Before you start the servicing disable the built in battery See Disabling the built in battery on page 62 Chapter 9 Removing or replacing a FRU 83 ...

Page 90: ...Screw quantity Color Torque 1 M2 3 mm flat head nylon coated 2 Black 0 181 Nm 1 85 kgf cm When installing Ensure that the connector of the power button card is attached firmly 1180 Fingerprint reader assembly Note Before you start the servicing disable the built in battery See Disabling the built in battery on page 62 For access remove these FRUs in order 1010 Removable battery on page 62 1020 Nan...

Page 91: ...r Torque 1 M2 3 mm flat head nylon coated 1 Black 0 181 Nm 1 85 kgf cm 1190 LCD unit Note Before you start the servicing disable the built in battery See Disabling the built in battery on page 62 For access remove these FRUs in order 1010 Removable battery on page 62 1020 Nano SIM card on page 63 1030 Base cover assembly on page 63 Chapter 9 Removing or replacing a FRU 85 ...

Page 92: ...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 86 A485 Hardware Maintenance Manual ...

Page 93: ...Note Before you start the servicing disable the built in battery See Disabling the built in battery on page 62 For access remove these FRUs in order 1010 Removable battery on page 62 1020 Nano SIM card on page 63 1030 Base cover assembly on page 63 1040 Memory module on page 66 1050 Internal storage drive on page 66 1060 Wireless WAN card on page 70 or 1080 M 2 solid state drive in the Wireless WA...

Page 94: ... on page 81 1170 Power button card and cable on page 83 1180 Fingerprint reader assembly on page 84 1190 LCD unit on page 85 2010 LCD bezel assembly Note Before you start the servicing disable the built in battery See Disabling the built in battery on page 62 For access remove these FRUs in order 1010 Removable battery on page 62 1020 Nano SIM card on page 63 1030 Base cover assembly on page 63 Re...

Page 95: ... 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 62 For access remove these FRUs in order 1010 Removable battery on page 62 1020 Nano SIM card on page 63 1030 Base cover assembly on page 63 2010 LCD bezel assembly on page 88 Removal steps of the LCD panel Chapter 9 Removing or replacing a FRU 89 ...

Page 96: ...t the servicing disable the built in battery See Disabling the built in battery on page 62 For access remove these FRUs in order 1010 Removable battery on page 62 1020 Nano SIM card on page 63 1030 Base cover assembly on page 63 1190 LCD unit on page 85 2010 LCD bezel assembly on page 88 2020 LCD panel on page 89 Removal step of the LCD hinge assembly For models with support brackets 90 A485 Hardw...

Page 97: ... 5 2 5 mm small head nylon coated 4 Sliver 0 293 Nm 3 0 kgf cm For models without support 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 91 ...

Page 98: ...emove these FRUs in order 1010 Removable battery on page 62 1020 Nano SIM card on page 63 1030 Base cover assembly on page 63 1190 LCD unit on page 85 2010 LCD bezel assembly on page 88 2020 LCD panel on page 89 Removal steps of the camera microphone module When installing Ensure that the connector is attached firmly 92 A485 Hardware Maintenance Manual ...

Page 99: ...or access remove these FRUs in order 1010 Removable battery on page 62 1020 Nano SIM card on page 63 1030 Base cover assembly on page 63 1190 LCD unit on page 85 2010 LCD bezel assembly on page 88 2020 LCD panel on page 89 2030 LCD hinge assembly on page 90 Removal steps of the camera and LED cable and LCD cable Chapter 9 Removing or replacing a FRU 93 ...

Page 100: ... servicing disable the built in battery See Disabling the built in battery on page 62 For access remove these FRUs in order 1010 Removable battery on page 62 1020 Nano SIM card on page 63 1030 Base cover assembly on page 63 1190 LCD unit on page 85 2010 LCD bezel assembly on page 88 2020 LCD panel on page 89 2030 LCD hinge assembly on page 90 Removal steps of the wireless LAN WAN antenna assembly ...

Page 101: ... on some models d Wireless LAN main antenna grey 2070 LCD rear cover assembly Note Before you start the servicing disable the built in battery See Disabling the built in battery on page 62 For access remove these FRUs in order 1010 Removable battery on page 62 1030 Base cover assembly on page 63 1190 LCD unit on page 85 2010 LCD bezel assembly on page 88 2020 LCD panel on page 89 2030 LCD hinge as...

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Page 103: ...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 104: ...s other countries or both Lenovo Lenovo logo ThinkPad ThinkPad logo TrackPoint Microsoft and Windows 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 USB C is a trademark of USB Implementers Forum Other company product or service name...

Page 105: ...nnouncements 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 HD High Definition HDD hard disk drive HDMI high definition multimedia interface ICs integrated circuits ...

Page 106: ...d 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 100 A485 Hardware Maintenance Manual ...

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Page 108: ...Part Number SP40Q51807 Printed in 1P P N SP40Q51807 ...

Page 109: ... 1PSP40Q51807 ...

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