Lenovo 20N4 Hardware Maintenance Manual Download Page 75

Page: 75 / 111

Note: When installing:

Ensure that the connector is attached firmly.

1040 M.2 solid-state drive

For access, remove these FRUs:
• “1010 Removing the nano-SIM card and the nano-SIM-card tray” on page 64
• “1020 Base cover assembly” on page 64

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 copy of all the information on it if possible.

• Never remove the drive while the system is operating or in suspend mode.

If your computer is installed with a hybrid solid-state drive (with Intel Optane memory), go to

https://

support.lenovo.com/docs/tg_ssd

to know the details on how to replace it.

Removal steps of the 2282 M.2 solid-state drive

Chapter 8

Removing or replacing a FRU

Summary of Contents for 20N4

Page 1: ...T590 and P53s Hardware Maintenance Manual ...

Page 2: ...under Appendix A Notices on page 101 Third Edition April 2020 Copyright Lenovo 2020 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: ...31 Passwords 33 Power on password 33 Hard disk password 33 Supervisor password 33 System management password 34 How to remove the power on password 34 How to remove the hard disk password 35 How to remove the system management password 35 Power management 36 Sleep mode 36 Hibernation mode 36 Symptom to FRU index 37 Numeric error codes 38 Error messages 39 Beep symptoms 40 No beep symptoms 41 LCD r...

Page 4: ... card cable 78 1150 Fingerprint reader cable bracket and board 80 1160 Coin cell battery 80 1170 NFC module cable and antenna 81 1180 Trackpad and cable 82 1190 Hall sensor board with cable 83 1210 System board 84 1220 LCD unit 87 1230 Keyboard bezel assembly 89 Removing an LCD FRU 90 2010 LCD bezel sheet and LCD bezel 90 2020 LCD hinges 91 2030 LCD panel and LCD elastic adhesive tape 91 2040 LCD ...

Page 5: ...agnostic tests to troubleshoot 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 inform...

Page 6: ...iv T590 and P53s Hardware Maintenance Manual ...

Page 7: ... 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 no...

Page 8: ...ty 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 these h...

Page 9: ... 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 Protect against...

Page 10: ...lectrical 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 Chinese DA...

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

Page 12: ...6 T590 and P53s Hardware Maintenance Manual ...

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

Page 14: ...PERIGO PERIGO PERIGO PERIGO PERIGO 8 T590 and P53s Hardware Maintenance Manual ...

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

Page 16: ...DANGER DANGER DANGER DANGER VORSICHT 10 T590 and P53s Hardware Maintenance Manual ...

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

Page 18: ...VORSICHT VORSICHT VORSICHT 12 T590 and P53s Hardware Maintenance Manual ...

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

Page 20: ...14 T590 and P53s Hardware Maintenance Manual ...

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

Page 22: ...16 T590 and P53s Hardware Maintenance Manual ...

Page 23: ...Chapter 1 Safety information 17 ...

Page 24: ...18 T590 and P53s Hardware Maintenance Manual ...

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

Page 26: ...20 T590 and P53s Hardware Maintenance Manual ...

Page 27: ...parts Ensure that all software fixes drivers and UEFI BIOS downloads are installed before replacing any FRUs listed in this manual After a system board is replaced ensure that the latest 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 follow...

Page 28: ...l types and how to identify each type Dynamic configure to order CTO model This model provides the ability for a customer to configure a Lenovo solution from a Web Site and have this configuration sent to fulfillment where it is 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...

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 ...

Page 30: ...24 T590 and P53s Hardware Maintenance Manual ...

Page 31: ...e failures can occur for various 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 fir...

Page 32: ...ts 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 experience a problem with y...

Page 33: ...mputer 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 37 for error code descriptions and troubleshooting hints 2 When the ThinkPad logo is displayed repeatedly press and release the F10 key The main screen of the UEFI diagnostic program is displayed 3 Follow the instructions on the screen to us...

Page 34: ...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 37 for error code descriptions and troubleshooting hints 2 Insert the disc into the optical drive 3 Restart the computer 4 When the ThinkPad logo is displayed repeatedly press and release the F12 key...

Page 35: ...d 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 battery designed for another systems is installed the system will not charge Attention Lenovo has no responsibility for the performance or safety of unauthorized batteries and provides no warranties for failures or damage arisi...

Page 36: ...nd If the voltage is correct replace the system board If the voltage is not correct replace the coin cell battery If the coin cell battery discharges quickly after replacement replace the system board 30 T590 and P53s Hardware Maintenance Manual ...

Page 37: ...covery USB drive as a backup or replacement for the Windows recovery programs For more information see Creating and using a recovery USB drive on page 32 Resetting your computer If your computer does not perform well you might consider resetting your computer In the resetting process you can choose to keep your files or remove them and then reinstall the Windows operating system To reset your comp...

Page 38: ...of the Lenovo Support phone numbers for your country or region go to https pcsupport lenovo com supportphonelist Creating a recovery USB drive To create a recovery USB drive you need a USB drive with at least 16 GB of storage capacity The actual USB capacity that is required depends on the size of the recovery image Attention The creation process deletes anything stored on the USB drive To avoid d...

Page 39: ...r mode requires two hard disk passwords the system administrator enters both in the same operation The system administrator then provides the user hard disk password to the system user Attention If the user hard 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 availa...

Page 40: ...ns If you have set both the supervisor password and the system management password the supervisor password overrides the system management password If you have set both the system management password and the power on password the system management password overrides the power on password How to remove the power on password To remove a power on password do the following If no supervisor password ha...

Page 41: ...sk password icon is displayed on the screen press F1 The master hard disk password icon is displayed 4 Enter the master hard disk password to enter the ThinkPad Setup program 5 Select Security 6 Select Password 7 Select Hard disk x password where x is the letter of the hard disk drive A pop up window opens 8 Select Master hard disk password 9 Type the current master hard disk password in the Enter...

Page 42: ...vents occur The LCD is powered off The internal storage drive hard disk drive solid state drive or hybrid drive is powered off The microprocessor stops To enter sleep mode press Fn 4 or open the Start menu and click Power and then click Sleep In certain circumstances the computer goes into sleep mode automatically After a period of inactivity specified in power plan settings When the battery power...

Page 43: ...ages on page 39 Beep symptoms on page 40 No beep symptoms on page 41 LCD related symptoms on page 41 Intermittent problems on page 42 Undetermined problems on page 42 The symptom to FRU index in this section lists symptoms and errors and their possible causes The most likely cause is listed first in boldface type Note Do the FRU replacement or other actions in the sequence shown in the column head...

Page 44: ...System Security Security password retry count exceeded 1 Run the ThinkPad Setup program The retry count will be reset Then save the current settings by pressing F10 2 Replace the system board 0251 System CMOS checksum bad Default configuration used 1 Charge the coin cell battery for more than 8 hours by connecting the ac power adapter 2 Replace the coin cell battery and run the ThinkPad Setup prog...

Page 45: ...Have the computer serviced 2204 System configuration data is invalid Have the computer serviced Error messages Table 3 Error messages Symptom or error beeps if any FRU or action in sequence Fan error two short beeps 1 Replace the fan 2 Apply thermal grease 3 Replace the system board Thermal sensing error Replace the system board The battery installed is not supported by this system and will not ch...

Page 46: ...ct Error codes Solutions 0001 Reset error platform reset not de asserted 1 Remove the ac power adapter and the removable battery if your computer has one Then reset the computer by doing one of the following For models with the emergency reset hole insert a straightened paper clip into the emergency reset hole Wait for one minute Then reconnect all power resources and restart the computer For mode...

Page 47: ...tem status indicator on and LCD blank during POST 1 Run LCD Self Test 2 Reseat memory module 3 Replace the system board The power on password prompt appears A power on password or a supervisor password is set Type the password and press Enter The hard disk password prompt appears A hard disk password is set Type the password and press Enter LCD related symptoms Important The TFT LCD for the notebo...

Page 48: ...at all LCD connectors 3 Replace the LCD assembly 4 Replace the system board Horizontal or vertical lines displayed on LCD Replace the LCD assembly Intermittent problems Intermittent system hang problems can be due to a variety of causes that have nothing to do with a hardware defect such as cosmic radiation electrostatic discharge or software errors FRU replacement should be considered only when a...

Page 49: ...External diskette drive h Memory module i External diskette drive or optical drive 4 Turn on the computer 5 Determine whether the problem has been solved 6 If the problem does not recur reconnect the removed devices one at a time until you find the failing FRU 7 If the problem remains replace the following FRUs one at a time do not replace a nondefective FRU a System board b LCD assembly Chapter 4...

Page 50: ...44 T590 and P53s Hardware Maintenance Manual ...

Page 51: ...te the speakers If you mute the sound and turn off your computer the sound will remain muted when you turn on your computer again To turn on the sound press F1 F2 or F3 Decrease the speaker volume Increase the speaker volume Mute or unmute the microphones Darken the computer display Brighten the computer display Manage external displays F8 Enable or disable the built in wireless features F9 Open t...

Page 52: ...mbination has the same function as the Pause key on a conventional external keyboard Fn S This key combination has the same function as the SysRq key on a conventional external keyboard Fn K This key combination has the same function as the ScrLK or Scroll Lock key on a conventional external keyboard Fn 4 Press Fn 4 to put the computer to sleep mode To wake up the computer press the Fn key or the ...

Page 53: ...n your computer Locating computer controls connectors and indicators This topic introduces the locations of the computer controls connectors and indicators Front view 1 Infrared camera 4 Camera 2 ThinkShutter 5 Multi touch screen 3 Microphones for selected models Copyright Lenovo 2020 47 ...

Page 54: ...Fingerprint reader 7 Speaker 4 Trackpad for selected models Left view 1 USB C connector USB 3 1 Gen 1 5 HDMI connector 2 Thunderbolt 3 connector USB C 6 Audio connector 3 Docking station connector 7 microSD card slot 4 USB 3 1 connector Gen 1 48 T590 and P53s Hardware Maintenance Manual ...

Page 55: ... card slot 3 Ethernet connector 2 Always On USB 3 1 connector Gen 1 4 Security lock slot for selected models Bottom view 1 Docking station hook holes 3 Emergency reset hole 2 Keyboard drainage hole Chapter 6 Locations 49 ...

Page 56: ...An electronic version of this manual can be found at https support lenovo com Click Documentation and then follow the on screen instructions 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...

Page 57: ...Major FRUs and CRUs d a b c Note Depending on the computer model your computer might look different from the illustration above Chapter 6 Locations 51 ...

Page 58: ... drive Yes No 14 Thermal fan No No 15 Base cover assembly Yes No 16 Nano SIM card tray Yes No 17 Built in battery No No 18 Coin cell battery Yes No 19 System board No No 20 Hall sensor board with cable No No 21 Memory module Yes No 22 NFC antenna No No 23 NFC module No No 24 NFC cable No No 25 Fingerprint reader module No No 26 Fingerprint reader cable No No 27 Trackpad No No 28 Trackpad cable No ...

Page 59: ...o for selected models Note The Lenovo factory recovery USB key is used to restore the Microsoft Windows operating system It might not come with the computer and a user might order it from https pcsupport lenovo com lenovorecovery though additional shipping and handling fees might apply LCD FRUs Chapter 6 Locations 53 ...

Page 60: ... 7 Conventional camera mic combo board No No 8 Infrared camera mic combo board No No 9 Dummy camera board No No 10 Microphone rubbers No No 11 LCD elastic adhesive tape No No 12 Wireless LAN WAN antenna assembly No No 13 LCD cover assembly No No 14 Conventional camera LED cable No No 15 LED cable No No 16 Infrared camera LED cable No No 17 LCD cable No No for selected models 54 T590 and P53s Hardw...

Page 61: ... Mylar film for wireless Wan card Mylar film for memory module Thermal pad for M 2 2280 solid state drive Thermal pad for M 2 2242 solid state drive Built in battery bracket Fingerprint reader bracket No NO Label kit GEO label Spec No No Connector and cable guide This topic provides information to help Lenovo authorized service technicians identify connectors and cables for replacement purpose To ...

Page 62: ...with the cable Connect the cable to this connector 3 RJ45 board connector internal RJ45 cable Connect one end of the RJ45 cable to the RJ45 board and the other end to this connector 4 Speaker assembly connector internal Speaker assembly cable The speaker assembly comes with the cable Connect the cable to this connector 5 LCD connector internal LCD cable Connect one end of the cable to the LCD pane...

Page 63: ...connector internal NFC cable Connect one end of the cable to the NFC module and the other end to this connector 16 Hall sensor board connector internal Hall sensor board cable The hall sensor board comes with the cable Connect the cable to this connector 17 Built in battery connector internal Built in battery cable The built in battery comes with the cable Connect the cable to this connector 18 Tr...

Page 64: ...comes with the cables Connect the cables to these connectors 26 Nano SIM card slot internal No Install a nano SIM card into the nano SIM card tray Then insert the tray with the card into this slot Looking up FRU information For detailed FRU information including part numbers descriptions and substitution part numbers go to https support lenovo com partslookup 58 T590 and P53s Hardware Maintenance ...

Page 65: ...eturn 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 Limited Warranty documentation for full detai...

Page 66: ... tighten all screws firmly to the torque specified in the screw information table for each step Ensure that torque screwdrivers are calibrated correctly following country specifications Retaining serial numbers This section includes the following descriptions Restoring the serial number of the system unit on page 60 Retaining the UUID on page 61 Reading or writing the ECA information on page 62 Re...

Page 67: ...lity interface is displayed 3 Type 1 under Enter the action desired then press Enter The ThinkPad Serial Number Update Utility for Asset ID screen is displayed 4 Type 1 under Enter the action desired then press Enter Then follow the instructions on the screen to restore the serial number of the system unit Retaining the UUID The Universally Unique Identifier UUID is a 128 bit number uniquely assig...

Page 68: ... the screen 4 To read the box build date select 5 Read box build date from EEPROM and follow the instruction on the screen After an ECA has been applied to the machine the EEPROM must be updated to reflect the ECA s application Use the Maintenance Key to update the EEPROM Note Only the ECA number is stored in the EEPROM The machine type of the ECA is assumed to be the same as the machine type of t...

Page 69: ...nt CRU See your Lenovo Limited Warranty documentation for full details General guidelines When removing or replacing a FRU be sure to 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 7 FRU replacement notices on page 59 3 Begin by rem...

Page 70: ...Yes 5 Clear the Turn on fast startup check box and then click Save changes To disable the built in battery do the following 1 Restart your computer When the logo screen is displayed immediately press F1 to enter ThinkPad Setup 2 Select Config Power The Power submenu is displayed 3 Select Disable built in battery and press Enter 4 Select Yes in the Setup Confirmation window The built in battery is ...

Page 71: ...ase cover assembly Loosen the screws 1 that secure the base cover assembly Pry up the latches in ascending alphabetical order a to h 2 and remove the base cover assembly 3 2e 2f 2g 2h Chapter 8 Removing or replacing a FRU 65 ...

Page 72: ...7 India unique GEO label Argentina NFC label 14 IMEI label for selected models Note For models with the asset tag label you may receive 6 or 12 depending on the country or region of delivery 1030 Keyboard Removal steps of the keyboard Notes Depending on the model your computer might look different from the illustrations in this topic If the keyboard must be removed to access other FRUs you need th...

Page 73: ...a b Chapter 8 Removing or replacing a FRU 67 ...

Page 74: ...Step Screw quantity Color Torque 5 M2 1 65 mm flat head nylon coated 2 Silver 0 143 Nm 1 4 kgf cm c d 68 T590 and P53s Hardware Maintenance Manual ...

Page 75: ...ive to physical 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 If your computer is installed with a hybrid solid state drive with Intel Optane memory go to https support lenovo com docs tg_ssd to know the de...

Page 76: ...ive Step Screw quantity Color Torque 1 M2 2 5 mm big head nylon coated 1 Black 0 181 Nm 1 85 kgf cm 1050 Wireless WAN card For access remove these FRUs 1010 Removing the nano SIM card and the nano SIM card tray on page 64 1020 Base cover assembly on page 64 Removal steps of the wireless WAN card 70 T590 and P53s Hardware Maintenance Manual ...

Page 77: ...se cover assembly on page 64 Removal steps of the memory module When installing Insert the notched end of the memory module into the slot at an angle of about 20 degrees Press the memory module firmly and pivot it downwards until it snaps into place Ensure that the memory module is firmly installed in the slot and does not move easily 1070 Speaker assembly For access remove these FRUs 1010 Removin...

Page 78: ...ge arising out of their use The Lenovo Vantage program provides an automatic battery diagnostic test that determines if the battery is defective A battery FRU should not be replaced unless this diagnostic test shows that the battery is defective The only exception to this is if the battery is physically damaged or a customer is reporting a possible safety issue Note that a physically damaged batte...

Page 79: ...y could ignite or explode Step Screw quantity Color Torque 2 M2 L5 mm flat head nylon coated 3 Black 0 181 Nm 1 85 kgf cm 1090 Thermal fan assembly For access remove these FRUs 1010 Removing the nano SIM card and the nano SIM card tray on page 64 1020 Base cover assembly on page 64 Chapter 8 Removing or replacing a FRU 73 ...

Page 80: ...and b as shown in the following illustrations Either too much or too less application of grease can cause a thermal problem due to imperfect contact with a component For models with discrete thermal pipes For models with an integrated thermal pipe for T590 only 1110 USB cable and board For access remove these FRUs 1010 Removing the nano SIM card and the nano SIM card tray on page 64 1020 Base cove...

Page 81: ...at head nylon coated 2 Silver 0 181 Nm 1 85 kgf cm 1120 RJ45 cable and board For access remove these FRUs 1010 Removing the nano SIM card and the nano SIM card tray on page 64 1020 Base cover assembly on page 64 1090 Thermal fan assembly on page 73 Chapter 8 Removing or replacing a FRU 75 ...

Page 82: ...Removal steps of the RJ45 cable and board Step Screw quantity Color Torque 4 M2 5 L6 mm flat head nylon coated 2 Black 0 181 Nm 1 85 kgf cm 76 T590 and P53s Hardware Maintenance Manual ...

Page 83: ... with cable For access remove these FRUs in order 1010 Removing the nano SIM card and the nano SIM card tray on page 64 1020 Base cover assembly on page 64 1090 Thermal fan assembly on page 73 1120 RJ45 cable and board on page 75 Removal steps of the power button board with cable Chapter 8 Removing or replacing a FRU 77 ...

Page 84: ...rd reader and smart card cable Depending on the model your computer might have a smart card reader or a dummy smart card reader installed For access remove these FRUs 1010 Removing the nano SIM card and the nano SIM card tray on page 64 1020 Base cover assembly on page 64 1080 Built in battery on page 72 Removal steps of the smart card reader and cable 78 T590 and P53s Hardware Maintenance Manual ...

Page 85: ...lack 0 181 Nm 1 85 kgf cm 8 M2 L3 mm flat head nylon coated 2 Black 0 181 Nm 1 85 kgf cm Removal steps of the dummy smart card reader Step Screw quantity Color Torque 1 M2 L3 mm flat head nylon coated 2 Black 0 181 Nm 1 85 kgf cm 3 M2 L3 mm flat head nylon coated 2 Black 0 181 Nm 1 85 kgf cm Chapter 8 Removing or replacing a FRU 79 ...

Page 86: ...val steps of the fingerprint reader cable bracket and board Step Screw quantity Color Torque 6 M2 2 5 mm big head nylon coated 1 Black 0 181 Nm 1 85 kgf cm When installing Ensure that the connectors are attached firmly 1160 Coin cell battery For access remove these FRUs 1010 Removing the nano SIM card and the nano SIM card tray on page 64 1020 Base cover assembly on page 64 80 T590 and P53s Hardwa...

Page 87: ...ure that the connector is attached firmly 1170 NFC module cable and antenna For access remove these FRUs 1010 Removing the nano SIM card and the nano SIM card tray on page 64 1020 Base cover assembly on page 64 1080 Built in battery on page 72 1160 Coin cell battery on page 80 Removal steps of the NFC module cable and antenna Chapter 8 Removing or replacing a FRU 81 ...

Page 88: ...rackpad and cable For access remove these FRUs 1010 Removing the nano SIM card and the nano SIM card tray on page 64 1020 Base cover assembly on page 64 1080 Built in battery on page 72 Removal steps of the trackpad and cable 82 T590 and P53s Hardware Maintenance Manual ...

Page 89: ...ached firmly 1190 Hall sensor board with cable For access remove these FRUs in order 1010 Removing the nano SIM card and the nano SIM card tray on page 64 1020 Base cover assembly on page 64 1080 Built in battery on page 72 1160 Coin cell battery on page 80 Removal steps of the hall sensor board with cable Chapter 8 Removing or replacing a FRU 83 ...

Page 90: ...conductive material For access remove these FRUs in order 1010 Removing the nano SIM card and the nano SIM card tray on page 64 1020 Base cover assembly on page 64 1030 Keyboard on page 66 Note If the keyboard must be removed to access other FRUs you need the keyboard removal tool product part number 01LX856 to remove the keyboard You can purchase the tool as a separate FRU at https support lenovo...

Page 91: ...nd name as shown in this table Brand name Machine types Shared with ThinkPad T590 20N4 and 20N5 ThinkPad T490 or ThinkPad P43s ThinkPad P53s 20N6 and 20N7 ThinkPad T490 or ThinkPad P43s Chapter 8 Removing or replacing a FRU 85 ...

Page 92: ...Screw quantity Color Torque 26 M2 L3 mm flat head nylon coated 3 Black 0 181 Nm 1 85 kgf cm When installing Ensure that the connectors are attached firmly Attention 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 86 T590 and P53s Hardware Maintenance Manual ...

Page 93: ...Unit CPU For models with an integrated graphics card for T590 only a Central Processing Unit CPU 1220 LCD unit For access remove these FRUs in order 1010 Removing the nano SIM card and the nano SIM card tray on page 64 1020 Base cover assembly on page 64 Chapter 8 Removing or replacing a FRU 87 ...

Page 94: ...unit When installing When 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 88 T590 and P53s Hardware Maintenance Manual ...

Page 95: ...zel assembly To replace the keyboard assembly remove these FRUs in order 1010 Removing the nano SIM card and the nano SIM card tray on page 64 1020 Base cover assembly on page 64 1030 Keyboard on page 66 1040 M 2 solid state drive on page 69 1050 Wireless WAN card on page 70 Chapter 8 Removing or replacing a FRU 89 ...

Page 96: ... and board on page 80 1160 Coin cell battery on page 80 1170 NFC module cable and antenna on page 81 1180 Trackpad and cable on page 82 1190 Hall sensor board with cable on page 83 1210 System board on page 84 1220 LCD unit on page 87 Removing an LCD FRU This section provides instructions on how to remove an LCD FRU 2010 LCD bezel sheet and LCD bezel For access remove this FRU in order 1220 LCD un...

Page 97: ...l and LCD elastic adhesive tape For access remove these FRUs in order 1220 LCD unit on page 87 2010 LCD bezel sheet and LCD bezel on page 90 Steps of removing LCD panel and LCD elastic adhesive tape 1 Grasp the end of both elastic adhesive tapes with tweezers Pull out each tape slowly in the direction as shown until both tapes are released from the LCD unit 1 Note Do not pull the tapes too fast ot...

Page 98: ...2 Lift up the LCD panel 3 Turn over the LCD panel and detach the LCD cable from the LCD panel as shown 92 T590 and P53s Hardware Maintenance Manual ...

Page 99: ...c adhesive tape 1 Apply the tape to the correct location 2 Peel off the release liner from the other side of the tape 3 Ensure that two tapes are applied correctly as shown 2 Attach the LCD cable to the LCD panel as shown Turn over the LCD panel to secure the LCD panel with tapes Chapter 8 Removing or replacing a FRU 93 ...

Page 100: ...sive tape on page 91 Removal steps of LCD cable When installing Ensure that the LCD connector is attached firmly 2050 Camera microphone module and dummy camera module For access remove these FRUs in order 1220 LCD unit on page 87 2010 LCD bezel sheet and LCD bezel on page 90 2030 LCD panel and LCD elastic adhesive tape on page 91 Removal steps of the infrared camera microphone module and camera My...

Page 101: ...lling Ensure that the connector is attached firmly Removal steps of the conventional camera microphone module When installing Ensure that the connector is attached firmly Chapter 8 Removing or replacing a FRU 95 ...

Page 102: ...20 LCD unit on page 87 2010 LCD bezel sheet and LCD bezel on page 90 2020 LCD hinges on page 91 2030 LCD panel and LCD elastic adhesive tape on page 91 Removal steps of the infrared camera LED cable When installing Ensure that the connector is attached firmly 96 T590 and P53s Hardware Maintenance Manual ...

Page 103: ...LED cable When installing Ensure that the connector is attached firmly 2070 Wireless antenna assembly For access remove these FRUs in order 1220 LCD unit on page 87 2010 LCD bezel sheet and LCD bezel on page 90 2020 LCD hinges on page 91 2030 LCD panel and LCD elastic adhesive tape on page 91 Chapter 8 Removing or replacing a FRU 97 ...

Page 104: ...enna assembly Cable routing When 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 98 T590 and P53s Hardware Maintenance Manual ...

Page 105: ...e FRUs in order 1220 LCD unit on page 87 2010 LCD bezel sheet and LCD bezel on page 90 2020 LCD hinges on page 91 2030 LCD panel and LCD elastic adhesive tape on page 91 2040 LCD cable on page 94 2050 Camera microphone module and dummy camera module on page 94 2060 Camera LED cable on page 96 2070 Wireless antenna assembly on page 97 Chapter 8 Removing or replacing a FRU 99 ...

Page 106: ...100 T590 and P53s Hardware Maintenance Manual ...

Page 107: ...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 108: ...Microsoft and Windows are trademarks of the Microsoft group of companies Intel and Optane are trademarks of Intel Corporation or its subsidiaries in the U S and or other countries 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 All other...

Page 109: ......

Page 110: ...Part Number SP40G76802_02 Printed in 1P P N SP40G76802_02 ...

Page 111: ... 1PSP40G76802_02 ...

Search results

Summary of Contents for 20N4

Reviews:

Related manuals for 20N4

Brands by name

Popular brands

Lenovo 20N4, Hardware Maintenance Manual

Search results

Summary of Contents for 20N4

Reviews:

Related manuals for 20N4

Brands by name

Popular brands