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Lenovo ThinkPad P72 Hardware Maintenance Manual
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Lenovo ThinkPad P72 Hardware Maintenance Manual

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  • Page 1 ThinkPad P72 Hardware Maintenance Manual...
  • Page 2 Appendix A “Notices” on page 107. First Edition (August 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-...

  • Page 3: Table Of Contents

    Power-on password ... unit ....Hard disk password ... © Copyright Lenovo 2018...
  • Page 4 Trademarks ....108 power button board ... ThinkPad P72 Hardware Maintenance Manual...

  • Page 5: About This Manual

    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. © Copyright Lenovo 2018...
  • Page 6 ThinkPad P72 Hardware Maintenance Manual...

  • Page 7: Chapter 1. Safety Information

    Many customers have, near their equipment, rubber floor mats that contain small conductive fibers to decrease electrostatic discharges. Do not use this type of mat to protect yourself from electrical shock. © Copyright Lenovo 2018...

  • Page 8: Safety Inspection Guide

    If any unsafe conditions are present, you must determine how serious the apparent hazard could be and whether you can continue without first correcting the problem. ThinkPad P72 Hardware Maintenance Manual...

  • Page 9: Handling Devices That Are Sensitive To Electrostatic Discharge

    0.1 ohm or less between the external ground pin and the frame ground. b. The power cord should be the authorized type specified for your computer. Go to: https:// support.lenovo.com/partslookup c. Insulation must not be frayed or worn. 4. Check for cracked or bulging batteries.

  • Page 10: Grounding Requirements

    The safety notices in this section are provided in the following languages: • English • Arabic • Brazilian Portuguese • French • German • Hebrew • Japanese • Korean • Spanish • Traditional Chinese DANGER DANGER DANGER ThinkPad P72 Hardware Maintenance Manual...
  • Page 11 DANGER DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 12 ThinkPad P72 Hardware Maintenance Manual...
  • Page 13 PERIGO PERIGO Chapter 1 Safety information...
  • Page 14 PERIGO PERIGO PERIGO PERIGO PERIGO ThinkPad P72 Hardware Maintenance Manual...
  • Page 15 PERIGO DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 16 DANGER DANGER DANGER DANGER VORSICHT ThinkPad P72 Hardware Maintenance Manual...
  • Page 17 VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1 Safety information...
  • Page 18 VORSICHT VORSICHT VORSICHT ThinkPad P72 Hardware Maintenance Manual...
  • Page 19 Chapter 1 Safety information...
  • Page 20 ThinkPad P72 Hardware Maintenance Manual...
  • Page 21 Chapter 1 Safety information...
  • Page 22 ThinkPad P72 Hardware Maintenance Manual...
  • Page 23 Chapter 1 Safety information...
  • Page 24 ThinkPad P72 Hardware Maintenance Manual...
  • Page 25 Chapter 1 Safety information...
  • Page 26 ThinkPad P72 Hardware Maintenance Manual...

  • Page 27: Chapter 2. Important Service Information

    UEFI BIOS downloads. Telephone numbers for Lenovo Support are available at: https://pcsupport.lenovo.com/supportphonelist • System Disassembly/Reassembly videos that show the FRU removals or replacements for the Lenovo authorized service technicians are available in the following support site: https://www.lenovoservicetraining.com/ion/...

  • Page 28: Important Notice For Replacing A System Board

    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.
  • 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...
  • Page 30 ThinkPad P72 Hardware Maintenance Manual...

  • Page 31: Chapter 3. General Checkout

    Following is a list of some common items that are not covered under warranty and some symptoms that might indicate that the system was subjected to stress beyond normal use. © Copyright Lenovo 2018...

  • Page 32: Checkout Guide

    Note: If you are unable to isolate and repair the problem yourself after running Lenovo Vantage, save and print the log files created by the program. You need the log files when you speak to a Lenovo technical support representative.

  • Page 33: Quick Test Programs

    If the computer you are servicing is not installed with the UEFI diagnostic program, you can download a bootable diagnostic program from the Lenovo Support Web site. The bootable diagnostic programs enable you to test computer memory and internal storage devices, view system information, and check and recover the internal storage devices.

  • Page 34: Power System Checkout

    To check the ac power adapter, do the following: 1. Unplug the ac power adapter cable from the computer. 2. Measure the output voltage at the plug of the ac power adapter cable. See the following illustration: ThinkPad P72 Hardware Maintenance Manual...

  • Page 35: Checking The Operational Charging

    This computer 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 battery designed for another systems is installed, the system will not charge.

  • Page 36: Checking The Coin-Cell Battery

    Ground • 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. ThinkPad P72 Hardware Maintenance Manual...

  • Page 37: Chapter 4. Related Service Information

    Settings ➙ Update & security ➙ Recovery. 2. In the Advanced startup section, click Restart now ➙ Troubleshoot ➙ Advanced options. 3. Select a desired startup option, then follow the instructions on the screen. © Copyright Lenovo 2018...

  • Page 38: Recovering Your Operating System If Windows 10 Fails To Start

    6. Select a corresponding recovery solution according to your situation. Then follow the instructions on the screen to complete the process. Passwords As many as three passwords may be needed for any ThinkPad notebook computer: the power-on password, the hard disk password, and the supervisor password. ThinkPad P72 Hardware Maintenance Manual...

  • Page 39: Power-On Password

    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 be replaced for a scheduled fee.

  • Page 40: How To Remove The Hard Disk Password

    To put the system back to operational status, the only Lenovo and Lenovo-authorized service solution would be to replace the hard disk drive or solid-state drive with a scheduled fee.

  • Page 41: Sleep Mode

    Sleep mode When the computer enters sleep mode, the following events occur: • The LCD is powered off. • The hard disk drive or solid-state drive is powered off. • The microprocessor stops. To put your computer into sleep mode, press Fn+4 or open the Start menu, click Power, and then click Sleep.

  • Page 42: Numeric Error Codes

    1. Run ThinkPad Setup to reset the time and date Check Date and Time settings — Neither the date nor the 2. Replace the coin-cell battery and run ThinkPad Setup time is set in the computer. to reset the time and date. ThinkPad P72 Hardware Maintenance Manual...

  • Page 43: Error Messages

    Table 1. Numeric error codes (continued) Symptom or error FRU or action, in sequence 1802 1. Remove network card. Unauthorized network card is plugged in — Turn off and 2. Replace the system board. remove the network card. 1820 Remove all but the reader that you set up for the More than one external fingerprint reader is attached.

  • Page 44: Beep Errors

    Beep errors Lenovo SmartBeep technology enables you to decode beep errors with your smartphone when a black screen occurs with beeps from your computer. To decode the beep error with Lenovo SmartBeep technology, do the following: 1.

  • Page 45: No-Beep Symptoms

    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 three or more visible defective pixels, it will be deemed as defective by Lenovo and it should be replaced. Notes: •...

  • Page 46: Intermittent Problems

    • Lenovo will not provide warranty replacement if the LCD is within specifications because we cannot guarantee that any replacement LCD will have zero pixel defects. • One pixel consists of R, G, B sub-pixels. Table 4. LCD-related symptoms Symptom or error FRU or action, in sequence Replace the system board.
  • Page 47 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.
  • Page 48 ThinkPad P72 Hardware Maintenance Manual...

  • Page 49: Chapter 5. Configuring Raid

    This topic provides the following instructions to help you configure RAID with the Intel RST configuration utility: • How to enter the Intel RST configuration utility • How to create RAID volumes • How to delete RAID volumes © Copyright Lenovo 2018...

  • Page 50: Entering The Intel Rst Configuration Utility

    Name: You can use the default name or type a preferred name for the RAID volume. b. RAID Level: You can press Enter to change the RAID to one of the following: • RAID0 (Stripe) • RAID1 (Mirror) ThinkPad P72 Hardware Maintenance Manual...

  • Page 51: Deleting Raid Volumes

    c. Select Disks: Press the up and down arrow keys to select a drive, and then press Spacebar or Enter to add it into a group. An X mark is displayed next to the selected drive. Note: The drive that cannot be used to create a RAID volume is not selectable. d.

  • Page 52: Rebuilding Raid 1 Volumes

    RAID 1 volume under rebuilding is displayed under RAID Volumes with a Rebuilding mark. 5. Wait a few minutes. When the rebuild process finishes successfully, the Rebuilding mark is changed to the Normal mark. 6. Press F10 to save changes and exit. ThinkPad P72 Hardware Maintenance Manual...

  • Page 53: Chapter 6. Using The Special Keys

    1. Go to Control Panel, and then change the view of Control Panel from Category to Large icons or Small icons. 2. Click Lenovo - Keyboard Manager and the Keyboard Manager window is displayed. 3. Select the options of your preference.
  • Page 54 Invoke the function defined by yourself. To define or change the action for the F12 key, do the following: 1. Open the Start menu and click the Lenovo Vantage program. 2. Click Hardware Settings and then click Input. 3. Locate the Keyboard: User-defined Key section and follow the instructions on the screen to complete the setting.

  • Page 55: Chapter 7. Locations

    Front view Infrared camera (available on some models) Conventional camera (available on models with the infrared camera) Microphones (available on some models) Power button Numeric keypad Fingerprint reader NFC label (available on some models) Trackpad with buttons © Copyright Lenovo 2018...

  • Page 56: Side Views

    USB 3.1 connectors Gen 1 ® SD-card slot Mini DisplayPort connector Ethernet connector Fan louvers Security-lock slot Rear view Fan louvers Power connector USB-C™ connectors (Thunderbolt™ 3 compatible) HDMI connector USB 3.1 connector Gen 1 ThinkPad P72 Hardware Maintenance Manual...

  • Page 57: Bottom View

    Bottom view Fan louvers Emergency reset hole Keyboard drainage holes Status indicators This topic provides information about locating and identifying the various status indicators on your computer. Note: Depending on the model, your computer might look different from the following illustrations. Chapter 7 Locations...
  • Page 58 When this indicator is on, the camera is in use. 2 12 System status indicators The indicator in the ThinkPad logo on the computer lid and the indicator in the power button show the system status of your computer. ThinkPad P72 Hardware Maintenance Manual...

  • Page 59: Locating Frus And Crus

    • Blinks for three times: The computer is initially connected to power. • On: The computer is on (in normal mode). • Off: The computer is off or in hibernation mode. • Blinks rapidly: The computer is entering sleep or hibernation mode. •...
  • Page 60 CRU, 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:// .

  • Page 61: Major Frus

    Major FRUs Table 5. Major FRUs FRU descriptions CRU ID Keyboard bezel assembly Fingerprint reader cable Fingerprint reader bracket Fingerprint reader Power button board cable Power button board NFC card cable NFC card Chapter 7 Locations...
  • Page 62 TrackPoint pointing stick Hinge screw strip cover Hinge caps LCD unit (see “LCD FRUs” on page 57) Lenovo factory recovery USB key Miscellaneous parts (see “Miscellaneous parts” on page 58) Power cord ac power adapter Notes: ThinkPad P72 Hardware Maintenance Manual...

  • Page 63: Lcd Frus

    • Depending on the model, the FRU marked with asterisk ( ) might not be available on your computer. • The Lenovo factory recovery USB key is used to restore the Microsoft Windows operating system. They might not come with the computer, and a user might order them from https://pcsupport.lenovo.com/...

  • Page 64: Miscellaneous Parts

    Label kit Connector and cable guide This section provides information for Lenovo authorized service technicians to help identify connectors and cables for replacement purpose. To view each FRU and the exploded illustration of the computer, see “Major FRUs” on page 55 and “LCD FRUs” on page 57.
  • Page 65 Connector/feature Internal cable required Cable connection USB-C connector (Thunderbolt™ 3 Connect a compatible device to this compatible) (external) connector. USB-C connector (Thunderbolt™ 3 Connect a compatible device to this compatible) (external) connector. HDMI connector (external) Connect a compatible projector, external monitor, or high-definition television to this connector.
  • Page 66 Fingerprint reader connector Internal cable required Connector/feature Cable connection Fingerprint reader connector Fingerprint reader cable Connect one end to the Fingerprint reader (internal) connector on the system board and the other end to this connector. ThinkPad P72 Hardware Maintenance Manual...
  • Page 67 NFC card connector Internal cable required Connector/feature Cable connection NFC card connector (internal) NFC card cable Connect one end to the NFC connector on the system board and the other end to this connector. NFC antenna connector (internal) NFC antenna cable The NFC antenna comes with a cable.
  • Page 68 (external) connector. Audio connector (external) Connect headphones or a headset with 3.5- mm (0.14-inch) 4-pole plug to this connector. Right I/O board connector (internal) Connect to the system board. Left I/O board connectors and cables ThinkPad P72 Hardware Maintenance Manual...
  • Page 69 Connector/feature Internal cable required Cable connection Always On USB 3.1 connector Gen Connect USB-compatible devices to this 1 (external) connector. Left I/O board connector (internal) Left I/O board cable Connect one end to the system board and the other end to this connector. Camera/microphone card connector and cable Item Connector (location)

  • Page 70: Looking Up Fru Information

    Looking up FRU information For detailed FRU information, including part numbers, descriptions, and substitution part numbers, go to: https://support.lenovo.com/partslookup ThinkPad P72 Hardware Maintenance Manual...

  • Page 71: Chapter 8. Fru Replacement Notices

    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 .

  • Page 72: Retaining Serial Numbers

    Maintenance Key. Note: Only an authorized Lenovo service technician can access the above Web site. 3. Restart the computer. 4. When the logo is displayed, press Esc. The ThinkPad Config Information Update Utility interface is displayed.

  • Page 73: Retaining The Uuid

    To check what ECAs have been previously applied to the machine, use the ECA Information Read/Write function on the LENOVO ThinkPad Hardware Maintenance Diskette or Maintenance Key. 1. Insert the latest version of LENOVO ThinkPad Hardware Maintenance Diskette or Maintenance Key, and then restart the computer.
  • Page 74 1. Insert the latest version of LENOVO ThinkPad Hardware Maintenance Diskette or Maintenance Key, and then restart the computer. 2. From the main menu, select 6. Set ECA Information. 3. To write the ECA information, select 1. Write ECA/rework number from EEPROM, and follow the instruction;...

  • Page 75: Chapter 9. Removing Or Replacing A Fru

    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 is available for downloading at https:// support.lenovo.com...

  • Page 76: Common Service Tools

    This section provides instructions on how to remove a major FRU. 1010 Bottom cover For access, remove this FRU: Removal steps of the bottom cover Note: Loosen the screws in ascending alphabetical order (a to g) as illustrated, and remove the bottom cover. ThinkPad P72 Hardware Maintenance Manual...

  • Page 77: 1020 Battery

    • “1010 Bottom cover” on page 70 Important notices for replacing a 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. Removal steps of the battery DANGER Use only the authorized battery specified for your computer.

  • Page 78: 1030 Storage Drive

    • 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 and drive cable ThinkPad P72 Hardware Maintenance Manual...

  • Page 79: 1040 Memory Module Under The Bottom Cover

    Removal steps of the M.2 solid-state drive Step Screw (quantity) Color Torque M2 × 3 mm, flat-head, nylon-coated (1) Silver 0.181 Nm (1.85 kgf-cm) 1040 Memory module under the bottom cover For access, remove these FRUs: • “1010 Bottom cover” on page 70 Chapter 9 Removing or replacing a FRU...

  • Page 80: 1050 Keyboard

    Note: You might be instructed to slide the keyboard frame forward or backward in some of the following steps. In this case, ensure that you do not press or hold the keys while sliding the keyboard frame. Otherwise, the keyboard frame cannot be moved. ThinkPad P72 Hardware Maintenance Manual...
  • Page 81 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 https://support.lenovo.com/partslookup Chapter 9 Removing or replacing a FRU...
  • Page 82 5. Pivot the tool in the direction as shown to release the keyboard . Push the keyboard in the direction as shown by arrows to release the latches from the keyboard bezel. ThinkPad P72 Hardware Maintenance Manual...

  • Page 83: 1060 Coin-Cell Battery

    6. Pivot the keyboard slightly upward as shown by arrow . Then turn the keyboard over as shown by arrow 7. Put the keyboard on the palm rest as shown and detach the connectors. Then remove the keyboard. 1060 Coin-cell battery For access, remove these FRUs: •...

  • Page 84: 1070 Memory Module Bracket And Memory Module Under The Keyboard

    • “1010 Bottom cover” on page 70 • “1050 Keyboard” on page 74 Removal steps of the memory module bracket Step Screw (quantity) Color Torque M2 × 3 mm, flat-head, nylon-coated (1) Silver 0.181 Nm (1.85 kgf-cm) ThinkPad P72 Hardware Maintenance Manual...

  • Page 85: 1080 Wireless Lan Card

    Removal steps of the memory module under the keyboard When installing: • If you install only one memory module, install it into the bottom slot. • Ensure that the memory module is firmly installed in the slot and does not move easily. 1080 Wireless LAN card For access, remove these FRUs: •...

  • Page 86: 1090 Keyboard Bezel Assembly

    Removal steps of the keyboard bezel assembly Step Screw (quantity) Color Torque Black 0.181 Nm M2 × 8 mm, flat-head, nylon-coated (4) (1.85 kgf-cm) Black 0.294 Nm M2.5 × 5 mm, flat-head, nylon-coated (2) (3.0 kgf-cm) ThinkPad P72 Hardware Maintenance Manual...

  • Page 87: 1110 Nfc Card, Fingerprint Reader Card, Trackpad Cable, Trackpad Button Board, And Power Button Board

    When installing: Ensure that all the latches are well assembled and there is no abnormal gap. 1110 NFC card, fingerprint reader card, trackpad cable, trackpad button board, and power button board For access, remove these FRUs in order: • “1010 Bottom cover” on page 70 •...
  • Page 88 When installing: Ensure that the connector is attached firmly. Removal steps of the fingerprint reader card ThinkPad P72 Hardware Maintenance Manual...
  • Page 89 When installing: Ensure that the connector is attached firmly. Chapter 9 Removing or replacing a FRU...
  • Page 90 Removal steps of the trackpad cable When installing: Ensure that the connector is attached firmly. Removal steps of the trackpad button board Step Screw (quantity) Color Torque M2 × 3 mm, flat-head, nylon-coated (2) Silver 0.181 Nm (1.85 kgf-cm) ThinkPad P72 Hardware Maintenance Manual...
  • Page 91 Removal steps of the power button board Step Screw (quantity) Color Torque 0.181 Nm M2 × 3 mm, flat-head, nylon-coated (2) Silver (1.85 kgf-cm) Chapter 9 Removing or replacing a FRU...

  • Page 92: 1120 Speaker Assembly

    • “1050 Keyboard” on page 74 • “1090 Keyboard bezel assembly” on page 80 Removal steps of the speaker assembly Step Screw (quantity) Color Torque M2 x 2.3, flat-head, nylon-coated (2) Silver 0.181 Nm (1.85 kgf-cm) ThinkPad P72 Hardware Maintenance Manual...

  • Page 93: 1130 Hinge Caps And Lcd Unit

    1130 Hinge caps and LCD unit For access, remove these FRUs: • “1010 Bottom cover” on page 70 • “1050 Keyboard” on page 74 • “1090 Keyboard bezel assembly” on page 80 • “1120 Speaker assembly” on page 86 Removal steps of the hinge caps and LCD unit Step Screw (quantity) Color...

  • Page 94: Step Screw (Quantity)

    Step Screw (quantity) Color Torque M2 × 3 mm, flat-head, nylon-coated (2) Silver 0.181 Nm (1.85 kgf-cm) ThinkPad P72 Hardware Maintenance Manual...

  • Page 95: M2.5 × 7 Mm, Flat-Head, Nylon-Coated

    Step Screw (quantity) Color Torque M2.5 × 7 mm, flat-head, nylon-coated (2) Black 0.294 Nm (3.0 kgf-cm) When installing: Ensure that you route the cables firmly and tape up in the proper positions. Attention: 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.

  • Page 96: 1140 Chassis Assembly

    Removal steps of the chassis assembly Step Screw (quantity) Color Torque M2 × 8 mm, flat-head, nylon-coated (8) Black 0.181 Nm (1.85 kgf-cm) M2.5 × 5 mm, flat-head, nylon-coated (6) Black 0.294 Nm (3.0 kgf-cm) ThinkPad P72 Hardware Maintenance Manual...

  • Page 97: 1150 Left I/O Board, Left I/O Board Cable, And Right I/O Board

    1150 Left I/O board, Left I/O board cable, and right I/O board For access, remove these FRUs: • “1020 Battery” on page 71 • “1010 Bottom cover” on page 70 • “1050 Keyboard” on page 74 • “1090 Keyboard bezel assembly” on page 80 •...

  • Page 98: Black 0.294 Nm

    (1.85 kgf-cm) When installing: Ensure that the connector is attached firmly. Removal steps of the right I/O board Step Screw (quantity) Color Torque 0.181 Nm M2 × 3 mm, flat-head, nylon-coated (2) Silver (1.85 kgf-cm) ThinkPad P72 Hardware Maintenance Manual...

  • Page 99: 1160 Smart Card Reader, Smart Card Reader Cable, Or Dummy Smart Card

    When installing: Ensure that the connector is attached firmly. 1160 Smart card reader, smart card reader cable, or dummy smart card For access, remove these FRUs: • “1020 Battery” on page 71 • “1010 Bottom cover” on page 70 • “1050 Keyboard” on page 74 •...

  • Page 100: 1170 Thermal Fan Assembly

    • “1120 Speaker assembly” on page 86 • “1130 Hinge caps and LCD unit” on page 87 • “1140 Chassis assembly ” on page 90 Removal steps of the thermal fan assembly Detach the thermal fan assembly connector. ThinkPad P72 Hardware Maintenance Manual...

  • Page 101: 1180 System Board, Dc-In Bracket, Dc-In Cable Assembly, And Base Cover Assembly

    Loosen the screws in ascending alphabetical order (2a to 2h) as illustrated, and then remove the thermal fan assembly. When installing: • Do not touch the areas marked in the following illustrations. • Ensure that the fan connector is attached firmly. •...
  • Page 102 The following components soldered on the top side of the system board is extremely sensitive. When you service the system board, avoid any kind of rough handling. Graphic Processing Unit (GPU) Central Processing Unit (CPU) Platform Controller Hub (PCH) ThinkPad P72 Hardware Maintenance Manual...
  • Page 103 Removal steps of the system board, dc-in bracket, dc-in cable assembly, and base cover assembly Torque Step Screw (quantity) Color M2 × 5 mm, flat-head, nylon-coated (1) Black 0.181 Nm (1.85 kgf-cm) Torque Step Screw (quantity) Color M2 × 5 mm, flat-head, nylon-coated (2) Black 0.181 Nm (1.85 kgf-cm)

  • Page 104: Removing An Lcd Fru

    2010 LCD strip cover and LCD bezel assembly For access, remove this FRU: • “1010 Bottom cover” on page 70 • “1020 Battery” on page 71 • “1130 Hinge caps and LCD unit” on page 87 ThinkPad P72 Hardware Maintenance Manual...

  • Page 105: 2020 Led Card

    Removal steps of LCD strip cover and LCD bezel assembly Step Screw (quantity) Color Torque Black 0.294 Nm M2.5 × 7 mm, flat-head, nylon-coated (2) (3.0 kgf-cm) When installing: Ensure that all the latches are attached firmly. 2020 LED card For access, remove these FRUs in order: •...

  • Page 106: 2030 Lcd Panel, Lcd Cable, And Hinge Assembly

    • “1020 Battery” on page 71 • “1130 Hinge caps and LCD unit” on page 87 • “2010 LCD strip cover and LCD bezel assembly” on page 98 • “2020 LED card” on page 99 ThinkPad P72 Hardware Maintenance Manual...
  • Page 107 Removal steps of the LCD panel Step Screw (quantity) Color Torque 0.181 Nm M2 × 3 mm, flat-head, nylon-coated (4) Silver (1.85 kgf-cm) Removal steps of the LCD cable Chapter 9 Removing or replacing a FRU...

  • Page 108: 2040 Camera Card And Led/Camera Cable Assembly

    • “1130 Hinge caps and LCD unit” on page 87 • “2010 LCD strip cover and LCD bezel assembly” on page 98 • “2020 LED card” on page 99 • “2030 LCD panel, LCD cable, and hinge assembly” on page 100 ThinkPad P72 Hardware Maintenance Manual...

  • Page 109: 2050 Wireless Lan Antenna Kit And Lcd Rear Cover Assembly

    Removal steps of the camera card Removal steps of the LED/camera cable assembly When installing: Ensure that the connectors are attached firmly. 2050 Wireless LAN antenna kit and LCD rear cover assembly For access, remove these FRUs in order: • “1010 Bottom cover” on page 70 Chapter 9 Removing or replacing a FRU...
  • Page 110 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. Antenna location ThinkPad P72 Hardware Maintenance Manual...
  • Page 111 Wireless LAN main antenna (gray) Wireless LAN auxiliary antenna (black) Chapter 9 Removing or replacing a FRU...
  • Page 112 ThinkPad P72 Hardware Maintenance Manual...

  • Page 113: Appendix A. Notices

    Lenovo representative for information on the products and services currently available in your area. Any reference to a Lenovo product, program, or service is not intended to state or imply that only that Lenovo product, program, or service may be used. Any functionally equivalent product, program, or service that does not infringe any Lenovo intellectual property right may be used instead.

  • Page 114: Electronic Emissions Notices

    For electronic emission information on Class B digital devices, refer to the corresponding information in the User Guide. EU contact: Lenovo, Einsteinova 21, 851 01 Bratislava, Slovakia Trademarks The following terms are trademarks of Lenovo in the United States, other countries or both: Lenovo Lenovo logo ThinkPad...
  • Page 116 Part Number: SP40M12309 Printed in China (1P) P/N: SP40M12309...
  • Page 117 *1PSP40M12309*...

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