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Lenovo ThinkPad T420 4177 Hardware Maintenance Manual
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Lenovo ThinkPad T420 4177 Hardware Maintenance Manual

Lenovo thinkpad t420 4177: supplementary guide
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ThinkPad T420s and T420si

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Summary of Contents for Lenovo ThinkPad T420 4177

  • Page 1 Hardware Maintenance Manual ThinkPad T420s and T420si...
  • Page 3 Hardware Maintenance Manual ThinkPad T420s and T420si...
  • Page 4 Appendix A “Notices” on page 139. First Edition (February 2011) © Copyright Lenovo 2011. LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software are delivered pursuant a General Services Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No.

  • Page 5: Table Of Contents

    Diagnostics using PC-Doctor for DOS..Before servicing ThinkPad T420s and T420si Lenovo ThinkVantage Toolbox ..models....
  • Page 6 1150 System board, fan assembly, 34-mm AC adapters ....ExpressCard reader, and base cover ..Power cords ....2010 LCD bezel assembly .

  • Page 7: 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 31. © Copyright Lenovo 2011...
  • Page 8 Hardware Maintenance Manual...

  • Page 9: Chapter 1. Safety Information

    • Reinstall all covers correctly before returning the machine to the customer. • Fan louvers on the machine help to prevent overheating of internal components. Do not obstruct fan louvers or cover them with labels or stickers. © Copyright Lenovo 2011...

  • Page 10: Electrical Safety

    Electrical safety Observe the following rules when working on electrical equipment. Important: Use only approved tools and test equipment. Some hand tools have handles covered with a soft material that does not insulate you when working with live electrical currents.Many customers have, near their equipment, rubber floor mats that contain small conductive fibers to decrease electrostatic discharges.

  • Page 11: Safety Inspection Guide

    – Send another person to get medical aid. Safety inspection guide The purpose of this inspection guide is to assist you in identifying potentially unsafe conditions. As each machine was designed and built, required safety items were installed to protect users and service technicians from injury.

  • Page 12: Grounding Requirements

    When handling ESD-sensitive parts: • Keep the parts in protective packages until they are inserted into the product. • Avoid contact with other people. • Wear a grounded wrist strap against your skin to eliminate static on your body. • Prevent the part from touching your clothing. Most clothing is insulative and retains a charge even when you are wearing a wrist strap.
  • Page 13 DANGER DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 14 DANGER DANGER DANGER Hardware Maintenance Manual...
  • Page 15 Chapter 1 Safety information...
  • Page 16 Hardware Maintenance Manual...
  • Page 17 PERIGO PERIGO PERIGO PERIGO PERIGO Chapter 1 Safety information...
  • Page 18 PERIGO PERIGO PERIGO Hardware Maintenance Manual...
  • Page 19 DANGER DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 20 DANGER DANGER DANGER Hardware Maintenance Manual...
  • Page 21 VORSICHT VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1 Safety information...
  • Page 22 VORSICHT VORSICHT VORSICHT Hardware Maintenance Manual...
  • Page 23 Chapter 1 Safety information...
  • Page 24 Hardware Maintenance Manual...
  • Page 25 Chapter 1 Safety information...
  • Page 26 Hardware Maintenance Manual...
  • Page 27 Chapter 1 Safety information...
  • Page 28 Hardware Maintenance Manual...
  • Page 29 Chapter 1 Safety information...
  • Page 30 Hardware Maintenance Manual...
  • Page 31 Chapter 1 Safety information...

  • Page 32: Laser Compliance Statement (Multilingual Translations)

    Laser compliance statement (multilingual translations) The laser compliance statements in this section are provided in the following languages: • English • Arabic • Brazilian Portuguese • French • German • Hebrew • Japanese • Korean • Spanish • Traditional Chinese Hardware Maintenance Manual...
  • Page 33 Chapter 1 Safety information...
  • Page 34 Hardware Maintenance Manual...
  • Page 35 Chapter 1 Safety information...
  • Page 36 Hardware Maintenance Manual...
  • Page 37 Chapter 1 Safety information...
  • Page 38 Hardware Maintenance Manual...

  • Page 39: Chapter 2. Important Service Information

    “FRU identification for CTO, CMV, and GAV products” on page 33 Important: Advise customers to contact the Lenovo Customer Support Center if they need any assistance in obtaining or installing any software fixes, drivers, and UEFI BIOS downloads. Telephone numbers for Lenovo Support are available at:http://www.lenovo.com/support/phone...

  • Page 40: Strategy For Replacing A Hard Disk Drive

    MT and 3-digit model, where model = “CTO” (Example: 1829-CTO). Custom Model Variant (CMV) This is a unique configuration that has been negotiated between IBM or Lenovo and the customer. A unique 4-digit MT and 3-digit model is provided to the customer to place orders (Example: 1829-W15). A CMV is a special bid offering.

  • Page 41: Fru Identification For Cto, Cmv, And Gav Products

    = a “fixed part number”, not “CTO” (Example: 1829-F1U). • PEW can be accessed at the following Web site: http://www.lenovo.com/support/site.wss/document.do?lndocid=LOOK-WARNTY Select Warranty lookup. Input the MT and the Serial number and the list of key commodities will be returned in the PEW record under COMPONENT INFORMATION.
  • Page 42 Hardware Maintenance Manual...

  • Page 43: Chapter 3. General Checkout

    “What to do first” on page 35 • “Checkout guide” on page 36 – “Diagnostics using PC-Doctor for DOS” on page 36 – “Lenovo ThinkVantage Toolbox” on page 39 – “PC-Doctor for Rescue and Recovery” on page – “FRU tests” on page 39 •...

  • Page 44: Checkout Guide

    The ThinkPad Notebook has a test program called PC-Doctor for DOS (hereafter called PC-Doctor.) You can detect errors by running the diagnostics test included in PC-Doctor. Note: PC-Doctor for DOS is available at the following Web site: http://www.lenovo.com/supportTo create the PC-Doctor diagnostic CD, follow the instructions on the Web site.

  • Page 45: Testing The Computer

    Configuration utility for DOS. The utility is available on the following Web site: http://www.lenovo.com/support PC-Doctor cannot be used to test a device that is in the docking station, even if the computer supports the docking station.
  • Page 46 The options on the test menu are as follows: Diagnostics Interactive Tests • Run Normal Test • Keyboard • Run Quick Test • Video • CPU/Coprocessor • Internal Speaker • System Memory • Mouse • System board • Diskette • Video Adapter •...

  • Page 47: Lenovo Thinkvantage Toolbox

    You can also run this program as either of the following: • Click Start ➙ All Programs ➙ Lenovo ThinkVantage Tools ➙ System Health and Diagnostics. • Click Start ➙ Control Panel ➙ System and Security ➙ Lenovo's System Health and Diagnostics. Windows Vista and Windows XP: Click Start ➙...
  • Page 48 Table 1. FRU tests Applicable test System board 1. Diagnostics ➙ CPU/Coprocessor. 2. Diagnostics ➙ Systemboard. 3. If the docking station or the port replicator is attached to the ThinkPad Notebook, detach it. 4. Place the computer on a horizontal surface, and run Diagnostics ➙ ThinkPad Devices ➙...

  • Page 49: Power System Checkout

    Power system checkout To verify a symptom, do the following: 1. Turn off the computer. 2. Remove the battery pack. 3. Connect the ac adapter. 4. Check that power is supplied when you turn on the computer. 5. Turn off the computer. 6.

  • Page 50: Checking Operational Charging

    Note: Noise from the AC adapter does not always indicate a defect. Checking operational charging To check whether the battery charges properly during operation, use a discharged battery pack or a battery pack that has less than 50% of the total power remaining when installed in the computer. Perform operational charging.
  • Page 51 3. Remove the battery pack (see “1010 Battery pack” on page 66). 4. Remove the backup battery (see “1090 Backup battery” on page 82). 5. Measure the voltage of the backup battery. See the following figure. Wire Voltage (V dc) +2.5 to +3.2 Black Ground...
  • Page 52 Hardware Maintenance Manual...

  • Page 53: Chapter 4. Related Service Information

    “Symptom-to-FRU index” on page 50 Service Web site: When the latest maintenance diskette and the system program service diskette become available, they will be posted on http://www.lenovo.com/spm Restoring the factory contents by using Product Recovery discs When the hard disk drive (HDD) or solid state drive (SSD) is replaced because of a failure, no Product Recovery program is on the new drive.
  • Page 54 The recovery disc set consists of the user instructions and the following set of DVDs to restore the computer to the original factory configuration. ® Operating System Recovery Disc (one disc) This disc restores the Microsoft Windows operating system. Use this disc to start the recovery process. Applications and Drivers Recovery Disc (one or This disc restores the preinstalled applications and more discs)

  • Page 55: Passwords

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

  • Page 56: How To Remove The Hard-Disk Password

    Attention: If User only mode is selected and the user HDP has been forgotten and cannot be made available to the service technician, neither Lenovo nor Lenovo authorized service technicians provide any services to reset the user HDPs or to recover data from the hard disk drive. The hard disk drive can be replaced for a scheduled fee.

  • Page 57: Sleep (Standby) Mode

    You can also put the computer into screen blank mode, press ThinkVantage button and use the ThinkVantage Productivity Center. Note: If the computer is a Windows 7 model, it does not support ThinkVantage Productivity Center. To end screen blank mode and resume normal operation, press any key. Sleep (standby) mode When the computer enters sleep (standby) mode, the following events occur in addition to what occurs in screen blank mode:...

  • Page 58: Symptom-To-Fru Index

    • Press the Fn+F12 keys. • If you have defined one of the following actions as the event that causes the system to go into hibernation mode, perform that action. – Closing the lid. – Pressing the power button. – Pressing Fn+F4 keys. Also, the computer goes into hibernation mode automatically in either of the following conditions: •...

  • Page 59: Numeric Error Codes

    Numeric error codes Table 2. Numeric error codes Symptom or error FRU or action, in sequence 0177 System board. Bad SVP data, stop POST task—The checksum of the supervisor password in the EEPROM is not correct. 0182 1. Run ThinkPad Setup. Press F9, and Enter to load Bad CRC2.

  • Page 60: Error Messages

    System board. This system does not support batteries that are not Replace the battery. genuine Lenovo-made or authorized. The system will continue to boot, but may not charge unauthorized batteries. 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.

  • Page 61: No-Beep Symptoms

    • This policy applies to all ThinkPad Notebooks purchased on 1 January, 2008 or later. • Lenovo will not provide replacement if the LCD is within specification as we cannot guarantee that any replacement LCD will have zero pixel defects.

  • Page 62: Intermittent Problems

    Table 6. LCD-related symptoms (continued) FRU or action, in sequence Symptom or error • LCD screen unreadable. 1. See important note for “LCD-related symptoms.” • Characters missing pixels. 2. Reseat all LCD connectors. • Screen abnormal. 3. LCD assembly. • Wrong color displayed. 4.

  • Page 63: Chapter 5. Status Indicators

    Chapter 5. Status indicators This chapter presents the system status indicators that show the status of the computer. © Copyright Lenovo 2011...
  • Page 64 Table 7. Status indicators Indicator Meaning Speaker mute The speaker is on mute. To set the speakers on mute or unmute, press Orange: the speaker mute button. Microphone mute Orange: The microphone is on mute. None of the recording devices is available while the microphone mute is on by default.
  • Page 65 Table 7. Status indicators (continued) Indicator Meaning Sleep (standby for Green: The computer is in sleep (standby) mode. Windows XP) status Blinking The computer is entering sleep (standby) mode or hibernation mode, green: or is resuming normal operation. Battery status Green: The battery charge level is 20% or higher.
  • Page 66 Hardware Maintenance Manual...

  • Page 67: Chapter 6. Fn Key Combinations

    To disable this function and use the Fn+F7 key combination for switching a display output location, start Presentation Director, and change the settings. Note: If the computer is an Windows 7 model, it does not support presentation schemes, but the Fn+F7 combination is available for switching a display output location. © Copyright Lenovo 2011...
  • Page 68 Table 8. Fn key combinations (continued) Key combination Description For Windows 7: Switch a display output location • Computer display only (LCD) • Computer display and external monitor (same image) • Computer display and external monitor (extended desktop) • External monitor only Note: To switch between the computer display and an external monitor, the Win+P key combination is also available.

  • Page 69: Chapter 7. Fru Replacement Notices

    Never use a screw that you removed. Use a new one. Make sure that all of the screws are tightened firmly. • Ensure torque screw drivers are calibrated correctly following country specifications. © Copyright Lenovo 2011...

  • Page 70: Retaining Serial Numbers

    If you replace the system board, you must restore the serial number of the system unit to its original value. Before replacing the system board, save the original serial number by doing the following: 1. Install the LENOVO ThinkPad Hardware Maintenance Diskette Version 1.76 or later, and restart the computer.

  • Page 71: Reading Or Writing The Eca Information

    1. Install the LENOVO ThinkPad Hardware Maintenance Diskette Version 1.76 or later, and restart the computer. 2. From the main menu, select 4. Assign UUID. A new UUID is created and written. If a valid UUID already exists, it is not overwritten.
  • Page 72 Hardware Maintenance Manual...

  • Page 73: Chapter 8. Removing And Replacing A Fru

    If the computer you are servicing has the SIM card, remove it before you start the servicing. To remove the SIM card, you need to remove the battery pack first. (See 1010 Battery pack.) After you finish the servicing, make sure that you insert the card back into the slot firmly. © Copyright Lenovo 2011...

  • Page 74: 1010 Battery Pack

    The only exception to this is if the battery pack is physically damaged or a customer is reporting a possible safety issue. If Lenovo ThinkVantage Toolbox or Lenovo System Toolbox is not installed in the computer, the customer should download this program before a non-physically damaged battery pack is replaced. Note that a physically damaged battery pack is a non-warranty replacement part.

  • Page 75: 1020 Serial Ultrabay Slim Device Or Travel Bezel

    Table 9. Removal steps of battery pack DANGER Use only the battery specified in the parts list for your computer. Any other battery could ignite or explode. Unlock the battery latch . Holding the battery latch in the unlocked position , remove the battery pack in the direction shown by arrows When installing:...

  • Page 76: 1030 Solid State Drive (Ssd) Or Hard Disk Drive (Hdd)

    Table 10. Removal steps of Serial Ultrabay Slim device or travel bezel (continued) 1030 Solid state drive (SSD) or hard disk drive (HDD) For access, remove the FRU: • “1010 Battery pack” on page 66 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.
  • Page 77 Table 11. Removal steps of SSD or HDD Step Screw (quantity) Color Torque M3 × 3 mm, flat-head, nylon-coated (1) Black 0.181 Nm (1.85 kgfcm) Chapter 8 Removing and replacing a FRU...

  • Page 78: 1040 Dimm

    Table 11. Removal steps of SSD or HDD (continued) When installing: Make sure that the SSD or HDD is firmly attached. For HDD and HDD rubber rails: For SSD and SSD spacers: 1040 DIMM For access, remove this FRU: • “1010 Battery pack”...
  • Page 79 Table 12. Removal steps of DIMM (continued) Step Screw (quantity) Color Torque M2 × 5 mm, flat-head, nylon-coated (2) Black 0.181 Nm (1.85 kgfcm) Chapter 8 Removing and replacing a FRU...

  • Page 80: 1050 Pci Express Mini Card For Wireless Lan

    Table 12. Removal steps of DIMM (continued) When installing: Insert the notched end of the DIMM into the socket. Press the DIMM in firmly, and pivot it until it snaps into place. Make sure that it is firmly attached in the slot and does not move easily. 1050 PCI Express Mini Card for wireless LAN For access, remove this FRU: •...
  • Page 81 Table 13. Removal steps of PCI Express Mini Card for wireless LAN (continued) Step Screw (quantity) Color Torque M2 × 5 mm, flat-head, nylon-coated (2) Black 0.181 Nm (1.85 kgfcm) Chapter 8 Removing and replacing a FRU...
  • Page 82 Table 13. Removal steps of PCI Express Mini Card for wireless LAN (continued) Note: Some models might have only two antenna cables. Step Screw (quantity) Color Torque M2 × 3 mm, small-head, nylon-coated (1) Silver 0.181 Nm (1.85 kgfcm) Hardware Maintenance Manual...

  • Page 83: 1060 Pci Express Mini Card For Wireless Wan

    Table 13. Removal steps of PCI Express Mini Card for wireless LAN (continued) When installing: • In models with a wireless LAN card that has two antenna connectors, plug the gray cable into the jack labeled MAIN or M, and the black cable into the jack labeled AUX or A on the card. If the computer you are servicing has three cables, put the white cable in the cable protection tube.
  • Page 84 Table 14. Removal steps of PCI Express Mini Card for wireless WAN (continued) Note: Remove the screws Torque Step Screw (quantity) Color M2 × 5 mm, flat-head, nylon-coated (2) Black 0.181 Nm (1.85 kgfcm) Hardware Maintenance Manual...

  • Page 85: 1070 4-In-1 Media Card Reader

    Table 14. Removal steps of PCI Express Mini Card for wireless WAN (continued) Torque Step Screw (quantity) Color M2 × 3 mm, small-head, nylon-coated (1) Silver 0.181 Nm (1.85 kgfcm) Note: Plug the orange cable into the jack labeled MAIN, and the blue cable into the jack labeled AUX on the card. 1070 4–in–1 media card reader For access, remove this FRU: •...

  • Page 86: 1080 Keyboard

    Table 15. Removal steps of 4–in–1 media card reader 1080 Keyboard For access, remove this FRU: • “1010 Battery pack” on page 66 Table 16. Removal steps of keyboard Note: Remove the screws Step Screw (quantity) Color Torque M2 × 5 mm, flat-head, nylon-coated (2) Black 0.181 Nm (1.85 kgfcm)
  • Page 87 Table 16. Removal steps of keyboard (continued) Step Screw (quantity) Color Torque M2 × 5 mm, flat-head, nylon-coated (2) Black 0.181 Nm (1.85 kgfcm) Slightly press the keyboard and slide it a little bit forward, in the direction shown by arrow , to detach the front edge of the keyboard from the frame.
  • Page 88 Table 16. Removal steps of keyboard (continued) Lift the keyboard a little in the direction shown by arrow , and then detach the connector Table 17. Installation steps of keyboard When installing the keyboard, do the following: Hardware Maintenance Manual...
  • Page 89 Table 17. Installation steps of keyboard (continued) 1. Attach the keyboard connector. 2. Attach the keyboard so that the keyboard edge is under the frame as shown in the following figure. Chapter 8 Removing and replacing a FRU...

  • Page 90: 1090 Backup Battery

    Table 17. Installation steps of keyboard (continued) 3. Gently press the keys with your palms and slightly slide the keyboard toward you until it snaps into position. 4. Secure the keyboard by tightening the screws from the bottom side of the computer. 1090 Backup battery For access, remove these FRUs in order: •...

  • Page 91: 1100 Palm Rest With Fingerprint Reader, Smart Card Reader, And Speaker

    Table 18. Removal steps of backup battery When installing: Attach the backup battery in the insulation sheet as shown in the figure below and make sure that the battery connector is attached firmly. 1100 Palm rest with fingerprint reader, smart card reader, and speaker For access, remove these FRUs in order: •...
  • Page 92 Table 19. Removal steps of palm rest or palm rest with fingerprint reader Torque Step Screw (quantity) Color M2 × 5 mm, flat-head, nylon-coated (13) Black 0.181 Nm (1.85 kgfcm) Black 0.181 Nm M2.5 × 5 mm, flat-head, nylon-coated (2) (1.85 kgfcm) M2 ×...
  • Page 93 Table 19. Removal steps of palm rest or palm rest with fingerprint reader (continued) Chapter 8 Removing and replacing a FRU...
  • Page 94 Table 19. Removal steps of palm rest or palm rest with fingerprint reader (continued) Table 20. Removal steps of smart card reader Step Screw (quantity) Color Torque 0.181 Nm M2 × 3 mm, flat-head, nylon-coated (5) Silver (1.85 kgfcm) Hardware Maintenance Manual...

  • Page 95: 1110 Lcd Unit

    Table 20. Removal steps of smart card reader (continued) Table 21. Removal steps of speaker Step Screw (quantity) Color Torque 0.181 Nm M2 × 3 mm, flat-head, nylon-coated (4) Silver (1.85 kgfcm) 1110 LCD unit For access, remove these FRUs in order: •...

  • Page 96: Step Screw (Quantity)

    Table 22. Removal steps of LCD unit Step Screw Screw (quantity) Color Torque M2.5 × 5 mm, flat-head, nylon-coated (2) Black 0.392 Nm (4.0 kgfcm) Hardware Maintenance Manual...

  • Page 97: 1120 Dc-In Sub Card

    Table 22. Removal steps of LCD unit (continued) When installing • Make sure that you route the cables firmly and tape up in the proper positions as shown in the figure above. • When you route the cables, make sure that they are not subjected to any tension. Tension could cause the cables to be damaged by the cable guides, or a wire to be broken.

  • Page 98: Removal Steps Of Dc-In Sub Card

    Table 23. Removal steps of DC-in sub card Torque Step Screw (quantity) Color M2 × 3 mm, shoulder-socket head, nylon-coated (1) Silver 0.181 Nm (1.85 kgfcm) 1130 Bluetooth daughter card (BDC-3.0) • “1010 Battery pack” on page 66 • “1030 Solid state drive (SSD) or hard disk drive (HDD)” on page 68 •...

  • Page 99: 1140 Bluetooth-Wireless Radio Switch Fpc

    When installing: Make sure that the connector is attached firmly. 1140 Bluetooth-wireless radio switch FPC For access, remove these FRUs in order: • “1010 Battery pack” on page 66 • “1020 Serial Ultrabay Slim device or travel bezel” on page 67 •...
  • Page 100 Table 25. Removal steps of Bluetooth–wireless radio switch FPC Step Screw (quantity) Color Torque M2 × 3 mm, bind-head, nylon-coated (1) Silver 0.181 Nm (1.85 kgfcm) When installing: Attach the wireless radio switch as shown in the following figure Hardware Maintenance Manual...

  • Page 101: 1150 System Board, Fan Assembly, 34-Mm Expresscard Reader, And Base Cover

    1150 System board, fan assembly, 34-mm ExpressCard reader, and base cover Important notices for handling the system board: When handling the system board, read the following: • The system board has an accelerometer, which can be broken when several thousands of G-forces are applied.
  • Page 102 Table 26. System board, fan assembly, 34-mm ExpressCard reader, and base cover 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. I/O Controller Hub (ICH) Graphics Memory Controller Hub (GMCH) Accelerometer chip for the HDD Active Protection System Hardware Maintenance Manual...

  • Page 103: Color Torque

    Table 26. System board, fan assembly, 34-mm ExpressCard reader, and base cover (continued) Torque Step Screw (quantity) Color M 2 × 9 mm, flat head, nylon-coated (1) Black 0.181 Nm (1.85 kgfcm) M2 × 3 mm, flat head, nylon-coated (1) Silver 0.181 Nm (1.85 kgfcm)
  • Page 104 Table 26. System board, fan assembly, 34-mm ExpressCard reader, and base cover (continued) In step , remove the system board with fan assembly together from the base cover assembly. Turn the system board over, and then disconnect the fan assembly from the system board. Step Screw (quantity) Color...

  • Page 105: Color Silver

    Table 26. System board, fan assembly, 34-mm ExpressCard reader, and base cover (continued) When installing: • Before you attach the fan assembly to the computer, apply thermal grease, at an amount of 0.2 grams, on the part marked as in the following figure. Either too much or too less application of grease can cause a thermal problem due to imperfect contact with a component.

  • Page 106: 2010 Lcd Bezel Assembly

    The new base cover FRU is shipped with a kit containing labels of several kinds. When you replace the base cover, apply the following label: Homologation label The following labels need to be peeled off from the old base cover, and need to be put on the new base cover. Asset tag China Mobile label or China Telecom label Non Encryption label or Indonesia rating label...
  • Page 107 Table 27. Removal steps of LCD bezel assembly Torque Step Screw Screw (quantity) Color M2 × 5 mm, shoulder-socket head, nylon-coated Black 0.181 Nm (1.85 kgfcm) Chapter 8 Removing and replacing a FRU...

  • Page 108: 2020 Lcd Panel

    2020 LCD panel For access, remove these FRUs, in order: • “1010 Battery pack” on page 66 • “2010 LCD bezel assembly” on page 98 The LCD panel and the peripheral parts used in this product are very sensitive. Improper handling of the LCD panel can cause damage to the parts, and may cause a system malfunction such as a missing dot, missing line, or pixel problems.
  • Page 109 Table 28. Removal steps of LCD panel (continued) Step Screw (quantity) Color Torque 0.181 Nm M2 × 3 mm, small-head, nylon-coated (4) Silver (1.85 kgfcm) When installing: When attaching the LCD panel to the cover, gently press the left and right edges covered with metal. Do not press the surface of the panel or apply any excessive force to the panel.

  • Page 110: 2030 Integrated Camera, Microphone, Or Hall Sensor Card

    2030 Integrated camera, microphone, or hall sensor card For access, remove these FRUs, in order: • “1010 Battery pack” on page 66 • “2010 LCD bezel assembly” on page 98 • “2020 LCD panel” on page 100 Table 29. Removal steps of integrated camera, microphone, or hall sensor card Torque Step Screw (quantity)

  • Page 111: 2040 Led Sub Card

    Table 29. Removal steps of integrated camera, microphone, or hall sensor card (continued) 2040 LED sub card For access, remove these FRUs in order: • “1010 Battery pack” on page 66 • “2010 LCD bezel assembly” on page 98 • “2020 LCD panel”...

  • Page 112: 2050 Lcd Cable

    Table 30. Removal steps of LED sub card Step Screw (quantity) Color Torque M2 × 3 mm, small-head, nylon-coated (1) Silver 0.181 Nm (1.85 kgfcm) When installing: Make sure that the connector is attached firmly. 2050 LCD cable For access, remove these FRUs in order: •...

  • Page 113: 2060 Hinge Kit

    • “1150 System board, fan assembly, 34-mm ExpressCard reader, and base cover” on page 93 • “2010 LCD bezel assembly” on page 98 • “2020 LCD panel” on page 100 • “2030 Integrated camera, microphone, or hall sensor card” on page 102 •...
  • Page 114 • “2010 LCD bezel assembly” on page 98 • “2020 LCD panel” on page 100 • “2030 Integrated camera, microphone, or hall sensor card” on page 102 • “2040 LED sub card” on page 103 • “2050 LCD cable” on page 104 Table 32.

  • Page 115: 2070 Led Cable

    Table 32. Removal steps of hinge kit (continued) Cable routing: When you install the hinge kit, route the cables as shown in the figure below. 2070 LED cable For access, remove these FRUs in order: • “1010 Battery pack” on page 66 •...

  • Page 116: 2080 Antenna Kit And Lcd Rear Cover Assembly

    Table 33. Removal steps of LED cable Cable routing: When you install the LED cable, route the cable as shown in the figure below. 2080 Antenna kit and LCD rear cover assembly For access, remove these FRUs in order: • “1010 Battery pack”...
  • Page 117 • “1100 Palm rest with fingerprint reader, smart card reader, and speaker” on page 83 • “1110 LCD unit” on page 87 • “1120 DC-in sub card” on page 89 • “1140 Bluetooth-wireless radio switch FPC” on page 91 • “1150 System board, fan assembly, 34-mm ExpressCard reader, and base cover” on page 93 •...
  • Page 118 Table 34. Removal steps of antenna kit and LCD rear cover assembly (continued) Cable routing: When you install the antenna kit, route the cables as shown in the figures below. As you route the cables, make sure that they are not subjected to any tension. Tension could cause the cables to be damaged by the cable guides, or a wire to be broken.

  • Page 119: Chapter 9. Locations

    Status indicators Touch pad UltraNav Security keyhole Ultrabay Slim Media Bay drive or travel bezel Volume control buttons Built-in stereo speakers : For the description of each indicator, see Chapter 5 “Status indicators” on page 55. © Copyright Lenovo 2011...

  • Page 120: Rear View

    Rear view Status indicators DisplayPort connector 34-mm ExpressCard slot or 4-in-1 media card reader Always On USB connector slot Combo audio jack USB connector USB connector Ethernet connector Monitor connector ac power connector : For the description of each indicator, see Chapter 5 “Status indicators” on page 55. Bottom view Expansion slot (DIMM, PCI Express Mini Card for Battery pack latch...

  • Page 121: Chapter 10. Parts List

    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 may find a list of CRUs in the publications that ship with your product or at http://www.lenovo.com/CRUs. You may be required to return the defective part that is replaced by the CRU.

  • Page 122: Overall

    Overall Hardware Maintenance Manual...
  • Page 123 Table 35. Parts list—Overall No. FRU (Overall) FRU no. See “Miscellaneous parts” on page 130. LCD unit (see “LCD FRUs” on page 125.) Keyboard bezel assembly 04W1451 N • 4170–CTO, 39x, 38x, 3Ax, 35x, 34x, 22x, 23x, 24x, 25x, 26x, 37x, 36x •...
  • Page 124 Table 35. Parts list—Overall (continued) No. FRU (Overall) FRU no. 60Y3233 Intel Centrino Ultimate-N 6300 • 4170–CTO • 4171–CTO, 5Mx • 4172–CTO • 4173–CTO, KYx, KXx, KNx, JKx, JJx, JHx, JGx, JFx, JCx, JBx, J4x • 4174–CTO, P4x, NTx, NSx, NNx, NEx, NDx Intel Centrino Advanced-N + WiMAX 6250 60Y3195 •...
  • Page 125 Table 35. Parts list—Overall (continued) No. FRU (Overall) FRU no. 60Y3283 Integrated Mobile Broadband (Gobi 3000) • 4170–CTO, 39x, 38x, 3Ax, 35x, 34x, 22x, 23x, 25x, 26x, 27x, 33x, 32x, 37x, 36x • 4171–CTO, 6Tx, 6Sx, 6Px, 6Nx, 6Mx, 6Jx, 6Hx, 6Gx, 6Fx, 5Vx, 5Ux, 5Tx, 5Rx, 5Px, 5Nx, 5Fx, 5Dx, 55x, 54x, 53x, 52x, 6Rx, 6Qx, 6Ex, 65x, 64x, 63x, 62x •...
  • Page 126 Table 35. Parts list—Overall (continued) No. FRU (Overall) FRU no. 45N7485 * DVD-ROM drive • 4170–CTO, 39x, 38x, 3Ax, 35x, 34x, 22x, 23x, 24x, 25x, 26x, 27x, 33x, 32x, 37x, 36x • 4171–CTO, 6Tx, 6Sx, 6Px, 6Nx, 6Mx, 6Jx, 6Hx, 6Gx, 6Fx, 5Zx, 5Yx, 5Xx, 5Vx, 5Ux, 5Tx, 5Rx, 5Px, 5Nx, 5Mx, 5Jx, 5Hx, 5Fx, 5Ex, 5Dx, 5Bx, 5Ax, 55x, 54x, 53x, 52x, 6Rx, 6Qx, 6Ex, 68x, 66x, 65x, 64x, 63x, 62x •...

  • Page 127: Overall

    Table 35. Parts list—Overall (continued) No. FRU (Overall) FRU no. DVD rambo drive 45N7453 * • 4170–CTO, 39x, 38x, 3Ax, 35x, 34x, 22x, 23x, 24x, 25x, 26x, 27x, 33x, 32x, 37x, 36x • 4171–CTO, 6Tx, 6Sx, 6Px, 6Nx, 6Mx, 6Jx, 6Hx, 6Gx, 6Fx, 5Zx, 5Yx, 5Xx, 5Vx, 5Ux, 5Tx, 5Rx, 5Px, 5Nx, 5Mx, 5Jx, 5Hx, 5Fx, 5Ex, 5Dx, 5Bx, 5Ax, 55x, 54x, 53x, 52x, 6Rx, 6Qx, 6Ex, 68x, 66x, 65x, 64x, 63x, 62x •...
  • Page 128 Table 35. Parts list—Overall (continued) No. FRU (Overall) FRU no. HDD rubber 04W1716 ** • 4170–CTO, 39x, 38x, 3Ax, 22x, 23x, 24x, 26x, 27x, 32x, 37x, 36x • 4171–CTO, 6Sx, 6Px, 6Nx, 6Hx, 6Gx, 6Fx, 5Zx, 5Yx, 5Xx, 5Vx, 5Ux, 5Tx, 5Rx, 5Px, 5Nx, 5Mx, 5Fx, 5Ex, 5Dx, 5Bx, 5Ax, 52x, 6Rx, 6Qx, 6Ex, 68x, 66x, 65x, 64x, 63x, 62x •...
  • Page 129 Table 35. Parts list—Overall (continued) No. FRU (Overall) FRU no. 45N7995 ** Solid state drive, 128 GB • 4170–CTO, 35x, 34x, 33x • 4171–CTO, 53x • 4172–CTO • 4173–CTO, KSx, KKx, KJx, KFx, K6x, K2x, JVx, JSx, JPx, JJx, JAx, 2Ax •...
  • Page 130 Table 35. Parts list—Overall (continued) No. FRU (Overall) FRU no. 04W2002 N System board assembly, with Intel Core i5-2520M processor, integrated, AMT, TPM, AES • 4170–CTO, 3Ax, 34x, 27x • 4171–CTO, 6Tx, 6Sx, 6Gx, 6Fx, 5Zx, 5Xx, 5Rx, 5Nx, 5Jx, 5Hx, 5Fx, 5Bx, 5Ax, 55x, 54x, 52x •...
  • Page 131 Table 35. Parts list—Overall (continued) No. FRU (Overall) FRU no. 04W2008 N System board assembly, with Intel Core i5-2520M processor, integrated, AMT, non-TPM, non-AES • 4170–CTO, 39x, 38x • 4171–CTO, 6Px, 6Nx, 5Vx, 5Tx • 4172–CTO • 4173–CTO • 4174–CTO, N7x, N6x 04W2009 N System board assembly, with Intel Core i7-2620M processor, integrated, AMT, non-TPM, non-AES...
  • Page 132 Table 35. Parts list—Overall (continued) No. FRU (Overall) FRU no. 04W2016 N System board assembly, with Intel Core i5-2540M processor, integrated, non-AMT, non-TPM, non-AES • 4170–CTO • 4171–CTO • 4172–CTO • 4173–CTO • 4174–CTO 04W2017 N System board assembly, with Intel Core i5-2520M integrated, none-AMT, none-TPM, none-AES •...

  • Page 133: Lcd Frus

    LCD FRUs In ThinkPad T420s and T420si models, there are following types of LCDs. • 14.1-inch WXGA+ TFT LED-backlight LCD (Table 36 “Parts list—14.1-inch WXGA+ LED-backlight LCD” on page 126) Chapter 10 Parts list...
  • Page 134 Table 36. Parts list—14.1-inch WXGA+ LED-backlight LCD No. FRU (14.1-inch WXGA+ LED-backlight LCD) FRU no. 04W1675 N LCD bezel assembly • 4170–CTO, 39x, 38x, 3Ax, 35x, 34x, 22x, 23x, 24x, 25x, 26x, 27x, 33x, 32x, 37x, 36x • 4171–CTO, 6Tx, 6Sx, 6Px, 6Nx, 6Mx, 6Jx, 6Hx, 6Gx, 6Fx, 5Zx, 5Yx, 5Xx, 5Vx, 5Ux, 5Tx, 5Rx, 5Px, 5Nx, 5Mx, 5Jx, 5Hx, 5Fx, 5Ex, 5Dx, 5Bx, 5Ax, 55x, 54x, 53x, 52x, 6Rx, 6Qx, 6Ex, 68x, 66x, 65x, 64x, 63x, 62x •...
  • Page 135 Table 36. Parts list—14.1-inch WXGA+ LED-backlight LCD (continued) No. FRU (14.1-inch WXGA+ LED-backlight LCD) FRU no. Antenna kit 04W1683 N • 4170–CTO, 39x, 38x, 3Ax, 35x, 34x, 22x, 23x, 24x, 25x, 26x, 27x, 33x, 32x, 37x, 36x • 4171–CTO, 6Tx, 6Sx, 6Px, 6Nx, 6Mx, 6Jx, 6Hx, 6Gx, 6Fx, 5Zx, 5Yx, 5Xx, 5Vx, 5Ux, 5Tx, 5Rx, 5Px, 5Nx, 5Mx, 5Jx, 5Hx, 5Fx, 5Ex, 5Dx, 5Bx, 5Ax, 55x, 54x, 53x, 52x, 6Rx, 6Qx, 6Ex, 68x, 66x, 65x, 64x, 63x, 62x •...
  • Page 136 Table 36. Parts list—14.1-inch WXGA+ LED-backlight LCD (continued) No. FRU (14.1-inch WXGA+ LED-backlight LCD) FRU no. LED cable assembly 04W1685 N • 4170–CTO, 39x, 38x, 3Ax, 35x, 34x, 22x, 23x, 24x, 25x, 26x, 27x, 33x, 32x, 37x, 36x • 4171–CTO, 6Tx, 6Sx, 6Px, 6Nx, 6Mx, 6Jx, 6Hx, 6Gx, 6Fx, 5Zx, 5Yx, 5Xx, 5Vx, 5Ux, 5Tx, 5Rx, 5Px, 5Nx, 5Mx, 5Jx, 5Hx, 5Fx, 5Ex, 5Dx, 5Bx, 5Ax, 55x, 54x, 53x, 52x, 6Rx, 6Qx, 6Ex, 68x, 66x, 65x, 64x, 63x, 62x •...

  • Page 137: Keyboard

    Table 36. Parts list—14.1-inch WXGA+ LED-backlight LCD (continued) No. FRU (14.1-inch WXGA+ LED-backlight LCD) FRU no. Hinge kit 04W1677 N • 4170–CTO, 39x, 38x, 3Ax, 35x, 34x, 22x, 23x, 24x, 25x, 26x, 27x, 33x, 32x, 37x, 36x • 4171–CTO, 6Tx, 6Sx, 6Px, 6Nx, 6Mx, 6Jx, 6Hx, 6Gx, 6Fx, 5Zx, 5Yx, 5Xx, 5Vx, 5Ux, 5Tx, 5Rx, 5Px, 5Nx, 5Mx, 5Jx, 5Hx, 5Fx, 5Ex, 5Dx, 5Bx, 5Ax, 55x, 54x, 53x, 52x, 6Rx, 6Qx, 6Ex, 68x, 66x, 65x, 64x, 63x, 62x •...

  • Page 138: Miscellaneous Parts

    Table 37. Parts list—Keyboard (continued) Language FRU no. Icelandic 45N2087 45N2157 45N2227 Italian 45N2088 45N2158 45N2228 Japanese 45N2102 45N2172 45N2242 Kazakhstan 45N2089 45N2159 45N2229 Korean 45N2103 45N2173 45N2243 45N2074 45N2144 45N2214 Latin American Spanish Norwegian 45N2091 45N2161 45N2231 Polish 45N2092 45N2162 45N2232 Portuguese...

  • Page 139: Ac Adapters

    AC adapters Table 39. Parts list—2-pin AC adapters FRU no. 2-pin (65 W, 20 V) adapter (models CTO, xxE, xxF, xxJ, xxL, xxP, xxS, xxU, xxY) 42T5282 2-pin (65 W, 20 V) adapter (models CTO, xxE, xxF, xxJ, xxL, xxP, xxS, xxU, xxY) 92P1214 92P1159 2-pin (65 W, 20 V) adapter (models CTO, xxE, xxF, xxJ, xxL, xxP, xxS, xxU, xxY)

  • Page 140: Recovery Discs

    Table 42. Parts list—2-pin power cords (continued) FRU no. Country or region 42T5008 42T5093 Canada, U.S. • models -CTO, xxF, xxL, xxS, xxU Japan 42T5014 42T5099 • models -CTO, xxE, xxJ Table 43. Parts list—3-pin power cords Country or region FRU no.

  • Page 141: Windows Xp Professional Generic (32 Bit) Dvds

    • 4174-CTO Table 44. Parts list—Windows XP Professional (32 bit) recovery DVDs Language English 03W8319 Japanese 03W8392 Windows XP Professional Generic (32 bit) DVDs Windows XP Professional generic is preinstalled as the operating system in the following models: • 4170-CTO •...

  • Page 142: Windows Vista Home Basic (32 Bit) Dvds

    Windows Vista Home Basic (32 bit) DVDs Windows Vista Home Basic (32 bit) is preinstalled as the operating system in the following models: • 4170-CTO • 4171-CTO • 4172-CTO • 4173-CTO • 4174-CTO Table 46. Parts list—Windows Vista Home Basic (32 bit) recovery DVDs Language English 03W8309...

  • Page 143: Windows 7 Home Basic (32 Bit) Dvds

    • 4170-CTO • 4171-CTO • 4172-CTO • 4173-CTO • 4174-CTO Table 49. Parts list—Windows 7 Ultimate (64 bit) recovery DVDs Language English 03W8351 Windows 7 Home Basic (32 bit) DVDs Windows 7 Home Basic (32 bit) is preinstalled as the operating system in the following models: •...

  • Page 144: Windows 7 Home Premium (64 Bit) Dvds

    Table 51. Parts list—Windows 7 Home Premium (32 bit) recovery DVDs Language 03W8363 Simplified Chinese Indian English 03W8364 English 03W8365 Windows 7 Home Premium (64 bit) DVDs Windows 7 Home Premium (64 bit) is preinstalled as the operating system in the following models: •...

  • Page 145: Windows 7 Professional (32 Bit) Dvds

    Table 52. Parts list—Windows 7 Home Premium (64 bit) recovery DVDs (continued) Language 03W8389 EMEA (NL/FR/GR/IT/EN) Croatian (EN/SL/CR) 03W8390 Windows 7 Professional (32 bit) DVDs Windows 7 Professional (32 bit) is preinstalled as the operating system in the following models: •...

  • Page 146: Common Service Tools

    USB floppy diskette drive for maintenance diskette 05K9283 27L3452 USB floppy diskette drive tool kit 42W7820 Test card for integrated Smart Card — LENOVO ThinkPad Hardware Maintenance Diskette Version 1.76 or later Note: Download the file from the following Web site: http://www.lenovo.com/support Hardware Maintenance Manual...

  • Page 147: 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 148: Electronic Emissions Notices

    For electronic emission information on Class B digital devices, refer to the corresponding information in the User Guide. Trademarks The following terms are trademarks of Lenovo in the United States, other countries or both: Active Protection System Lenovo Rescue and Recovery...
  • Page 150 Part Number: 0A60241 Printed in China (1P) P/N: 0A60241 *0A60241*...

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