Lenovo ThinkPad P52 Hardware Maintenance Manual (English) Think Pad (Type 20M9, 20MA) Laptop (Think Pad) Tp Hmm En
2018-06-14
User Manual: Lenovo (English) Hardware Maintenance Manual - ThinkPad P52 P52 (Type 20M9, 20MA) Laptop (ThinkPad) P52 (Type 20M9, 20MA) Laptop (ThinkPad)
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ThinkPad P52 Hardware Maintenance Manual Note: Before using this information and the product it supports, be sure to read the general information under Appendix A “Notices” on page 115. First Edition (June 2018) © Copyright Lenovo 2018. LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant to a General Services Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS35F-05925. Contents About this manual . . . . . . . . . . . . iii Chapter 1. Safety information . . . . . . 1 General safety . . . . . . . . . . . . . . Electrical safety . . . . . . . . . . . . . . Safety inspection guide . . . . . . . . . . . Handling devices that are sensitive to electrostatic discharge . . . . . . . . . . . . . . . . Grounding requirements . . . . . . . . . . Safety notices (multilingual translations) . . . . . . 1 . . 1 . . 2 . . 3 . . 4 . . 4 Chapter 2. Important service information . . . . . . . . . . . . . . . 21 Strategy for replacing FRUs . . . . . . . . . Strategy for replacing a hard disk drive or a solid-state drive . . . . . . . . . . . . Important notice for replacing a system board . . . . . . . . . . . . . . . . How to use error message . . . . . . . . Strategy for replacing FRUs for CTO, special-bid, and standard models. . . . . . . . . . . . Product definition . . . . . . . . . . . FRU identification . . . . . . . . . . . . 21 . 21 . . 22 22 . . . 22 22 22 Chapter 3. General checkout . . . . . 25 What to do first . . . . . . . . . . Checkout guide . . . . . . . . . . Diagnosing problems . . . . . . Quick test programs . . . . . . UEFI diagnostic program . . . . Bootable diagnostic programs . . Power system checkout . . . . . . Checking the ac power adapter . . Checking the operational charging Checking the battery pack . . . . Checking the coin-cell battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 26 26 27 27 27 28 28 29 29 30 Chapter 4. Related service information . . . . . . . . . . . . . . . 31 Recovery overview for the Windows 10 operating system . . . . . . . . . . . . . . . . . Resetting your computer . . . . . . . . Using advanced startup options . . . . . Recovering your operating system if Windows 10 fails to start . . . . . . . . . . . . Creating and using a recovery USB drive . . Passwords. . . . . . . . . . . . . . . . Power-on password . . . . . . . . . . Hard disk password . . . . . . . . . . © Copyright Lenovo 2018 . . . 31 31 31 . . . . . 32 32 32 33 33 Supervisor password . . . . . . . . How to remove the power-on password How to remove the hard disk password. Power management . . . . . . . . . . Sleep mode . . . . . . . . . . . Hibernation mode . . . . . . . . . Symptom-to-FRU index . . . . . . . . Numeric error codes . . . . . . . . Error messages . . . . . . . . . . Beep errors. . . . . . . . . . . . No-beep symptoms . . . . . . . . LCD-related symptoms . . . . . . . Intermittent problems . . . . . . . . Undetermined problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 33 34 34 35 35 35 36 37 38 39 39 40 40 Chapter 5. Configuring RAID . . . . . 43 Storage drive requirements for RAID levels . . . Configuring RAID with the Intel RST configuration utility . . . . . . . . . . . . . . . . . . Entering the Intel RST configuration utility . . Creating RAID volumes . . . . . . . . . Deleting RAID volumes . . . . . . . . . Resetting storage drives to non-RAID . . . Rebuilding RAID 1 volumes . . . . . . . . 43 . . . . . . 43 44 44 45 45 46 Chapter 6. Using the special keys. . . 47 Chapter 7. Locations . . . . . . . . . 49 Locating computer controls, connectors, and indicators . . . . . . . . . . . . . . Front view . . . . . . . . . . . . Side views . . . . . . . . . . . . Rear view . . . . . . . . . . . . Bottom view . . . . . . . . . . . Status indicators . . . . . . . . . Locating FRUs and CRUs . . . . . . . . Major FRUs . . . . . . . . . . . LCD FRUs . . . . . . . . . . . . Miscellaneous parts . . . . . . . . Connector and cable guide . . . . . Looking up FRU information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 49 50 50 51 51 54 55 57 60 60 64 Chapter 8. FRU replacement notices . . . . . . . . . . . . . . . . . 65 Screw notices . . . . . . . . . . . . . . . Retaining serial numbers . . . . . . . . . . . Restoring the serial number of the system unit . . . . . . . . . . . . . . . . . . 65 66 66 i Retaining the UUID. . . . . . . . . . . . Reading or writing the ECA information . . . . 67 67 Chapter 9. Removing or replacing a FRU. . . . . . . . . . . . . . . . . . . 69 General guidelines . . . . . . . . . . . . . Common service tools . . . . . . . . . . . Before servicing the computer . . . . . . . . Removing the nano-SIM card . . . . . . Removing a major FRU . . . . . . . . . . . 1010 Battery . . . . . . . . . . . . . 1020 Bottom cover. . . . . . . . . . . 1030 Storage drive . . . . . . . . . . . 1040 Memory module under the bottom cover . . . . . . . . . . . . . . . . 1050 Coin-cell battery . . . . . . . . . 1060 Keyboard . . . . . . . . . . . . 1070 Memory module bracket and memory module under the keyboard . . . . . . . 1080 Wireless LAN card . . . . . . . . . 1090 Wireless WAN card . . . . . . . . 1100 Keyboard bezel assembly . . . . . . 1110 NFC cable, fingerprint reader cable, trackpad cable, trackpad buttons, and power button cable . . . . . . . . . . . . . 1120 Hinge caps . . . . . . . . . . . 1130 LCD unit . . . . . . . . . . . . 1140 Chassis assembly . . . . . . . . . ii ThinkPad P52 Hardware Maintenance Manual . . . . . . . . 69 70 70 70 70 71 71 72 . . . 73 74 75 . . . . 80 82 82 83 . . . . 84 87 88 91 1150 Smart card reader, smart card reader cable, or dummy smart card . . . . . . . . 1160 Speaker assembly . . . . . . . . . . 1170 Thermal fan assembly . . . . . . . . 1180 System board . . . . . . . . . . . 1190 dc-in bracket, dc-in cable assembly, and base cover assembly . . . . . . . . . . . Removing an LCD FRU for non-touch models . . . 2010 LCD bezel assembly . . . . . . . . . 2020 Bezel support rubber. . . . . . . . . 2030 LED card . . . . . . . . . . . . . 2040 LCD panel, LCD cable, and hinge assembly . . . . . . . . . . . . . . . 2050 Camera card and LED camera cable assembly . . . . . . . . . . . . . . . 2060 Antenna kit and LCD rear cover assembly . . . . . . . . . . . . . . . Removing an LCD FRU for touch models . . . . . 3010 LCD strip bezel . . . . . . . . . . . 3020 LED card . . . . . . . . . . . . . 3030 LCD panel assembly, LCD cable, and hinge assembly . . . . . . . . . . . . . 3040 Camera card and LED camera cable assembly . . . . . . . . . . . . . . . 3050 Antenna kit and LCD rear cover assembly . . . . . . . . . . . . . . . 93 94 95 96 98 100 100 100 101 101 103 104 106 106 107 107 109 111 Appendix A. Notices . . . . . . . . . . 115 Electronic emissions notices . . . . . . . . . . 116 Trademarks . . . . . . . . . . . . . . . . 116 About this manual This manual contains service and reference information for the following ThinkPad® products. ThinkPad P52 Machine Types (MT) 20M9 and 20MA Use this manual along with the advanced diagnostic 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 information” on page 21. © Copyright Lenovo 2018 iii iv ThinkPad P52 Hardware Maintenance Manual Chapter 1. Safety information This chapter presents following safety information that you need to be familiar with before you service a ThinkPad notebook computer. • “General safety” on page 1 • “Electrical safety” on page 1 • “Safety inspection guide” on page 2 • “Handling devices that are sensitive to electrostatic discharge” on page 3 • “Grounding requirements” on page 4 • “Safety notices (multilingual translations)” on page 4 General safety Follow these rules to ensure general safety: • Observe good housekeeping in the area of the machines during and after maintenance. • When lifting any heavy object: 1. Make sure that you can stand safely without slipping. 2. Distribute the weight of the object equally between your feet. 3. Use a slow lifting force. Never move suddenly or twist when you attempt to lift. • • • • • • • 4. Lift by standing or by pushing up with your leg muscles; this action removes the strain from the muscles in your back. Do not attempt to lift any object that weighs more than 16 kg (35 lb) or that you think is too heavy for you. Do not perform any action that causes hazards to the customer, or that makes the equipment unsafe. Before you start the machine, make sure that other service technicians and the customer's personnel are not in a hazardous position. Place removed covers and other parts in a safe place, away from all personnel, while you are servicing the machine. Keep your 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 not wear jewelry, chains, metal-frame eyeglasses, or metal fasteners for your clothing. Attention: Metal objects are good electrical conductors. • Wear safety glasses when you are hammering, drilling, soldering, cutting wire, attaching springs, using solvents, or working in any other conditions that might be hazardous to your eyes. • After service, reinstall all safety shields, guards, labels, and ground wires. Replace any safety device that is worn or defective. • 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. 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. Do not use this type of mat to protect yourself from electrical shock. © Copyright Lenovo 2018 1 • Find the room emergency power-off (EPO) switch, disconnecting switch, or electrical outlet. If an electrical accident occurs, you can then operate the switch or unplug the power cord quickly. • Do not work alone under hazardous conditions or near equipment that has hazardous voltages. • Disconnect all power before: – Performing a mechanical inspection – Working near power supplies – Removing or installing main units • Before you start to work on the machine, unplug the power cord. If you cannot unplug it, ask the customer to power-off the wall box that supplies power to the machine, and to lock the wall box in the off position. • If you need to work on a machine that has exposed electrical circuits, observe the following precautions: – Ensure that another person, familiar with the power-off controls, is near you. Attention: Another person must be there to switch off the power, if necessary. – Use only one hand when working with powered-on electrical equipment; keep the other hand in your pocket or behind your back. • • • • • • • Attention: An electrical shock can occur only when there is a complete circuit. By observing the above rule, you may prevent a current from passing through your body. – When using testers, set the controls correctly and use the approved probe leads and accessories for that tester. – Stand on suitable rubber mats (obtained locally, if necessary) to insulate you from grounds such as metal floor strips and machine frames. Observe the special safety precautions when you work with very high voltages; Instructions for these precautions are in the safety sections of maintenance information. Use extreme care when measuring high voltages. Regularly inspect and maintain your electrical hand tools for safe operational condition. Do not use worn or broken tools and testers. Never assume that power has been disconnected from a circuit. First, check that it has been powered off. Always look carefully for possible hazards in your work area. Examples of these hazards are moist floors, nongrounded power extension cables, power surges, and missing safety grounds. Do not touch live electrical circuits with the reflective surface of a plastic dental mirror. The surface is conductive; such touching can cause personal injury and machine damage. Do not service the following parts with the power on when they are removed from their normal operating places in a machine: – Power supply units – Pumps – Blowers and fans – Motor generators – Similar units to listed above This practice ensures correct grounding of the units. If an electrical accident occurs: – Use caution; do not become a victim yourself. – Switch off power. – 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. This guide addresses only those items. You should use good judgment to identify potential safety hazards due to attachment of non-ThinkPad features or options not covered by this 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. 2 ThinkPad P52 Hardware Maintenance Manual Consider these conditions and the safety hazards they present: • Electrical hazards, especially primary power (primary voltage on the frame can cause serious or fatal electrical shock) • Explosive hazards, such as a damaged CRT face or a bulging capacitor • Mechanical hazards, such as loose or missing hardware To determine whether there are any potentially unsafe conditions, use the following checklist at the beginning of every service task. Begin the checks with the power off, and the power cord disconnected. Checklist: 1. Check exterior covers for damage (loose, broken, or sharp edges). 2. Power off the computer. Disconnect the power cord. 3. Check the power cord for: a. A third-wire ground connector in good condition. Use a meter to measure third-wire ground continuity for 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. 5. Remove the cover. 6. Check for any obvious non-ThinkPad alterations. Use good judgment as to the safety of any nonThinkPad alterations. 7. Check inside the unit for any obvious unsafe conditions, such as metal filings, contamination, water or other liquids, or signs of fire or smoke damage. 8. Check for worn, frayed, or pinched cables. 9. Check that the power-supply cover fasteners (screws or rivets) have not been removed or tampered with. Handling devices that are sensitive to electrostatic discharge Any computer part containing transistors or integrated circuits (ICs) should be considered sensitive to electrostatic discharge (ESD.) ESD damage can occur when there is a difference in charge between objects. Protect against ESD damage by equalizing the charge so that the machine, the part, the work mat, and the person handling the part are all at the same charge. Notes: 1. Use product-specific ESD procedures when they exceed the requirements noted here. 2. Make sure that the ESD protective devices you use have been certified (ISO 9000) as fully effective. 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. • Use a grounded work mat to provide a static-free work surface. The mat is especially useful when handling ESD-sensitive devices. • Select a grounding system, such as those listed below, to provide protection that meets the specific service requirement. Note: The use of a grounding system to guard against ESD damage is desirable but not necessary. – Attach the ESD ground clip to any frame ground, ground braid, or green-wire ground. Chapter 1. Safety information 3 – When working on a double-insulated or battery-operated system, use an ESD common ground or reference point. You can use coax or connector-outside shells on these systems. – Use the round ground prong of the ac plug on ac-operated computers. Grounding requirements Electrical grounding of the computer is required for operator safety and correct system function. Proper grounding of the electrical outlet can be verified by a certified electrician. Safety notices (multilingual translations) The safety notices in this section are provided in the following languages: • English • Arabic • Brazilian Portuguese • French • German • Hebrew • Japanese • Korean • Spanish • Traditional Chinese DANGER DANGER DANGER 4 ThinkPad P52 Hardware Maintenance Manual DANGER DANGER DANGER DANGER DANGER Chapter 1. Safety information 5 6 ThinkPad P52 Hardware Maintenance Manual PERIGO PERIGO Chapter 1. Safety information 7 PERIGO PERIGO PERIGO PERIGO PERIGO 8 ThinkPad P52 Hardware Maintenance Manual PERIGO DANGER DANGER DANGER DANGER Chapter 1. Safety information 9 DANGER DANGER DANGER DANGER VORSICHT 10 ThinkPad P52 Hardware Maintenance Manual VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1. Safety information 11 VORSICHT VORSICHT VORSICHT 12 ThinkPad P52 Hardware Maintenance Manual Chapter 1. Safety information 13 14 ThinkPad P52 Hardware Maintenance Manual Chapter 1. Safety information 15 16 ThinkPad P52 Hardware Maintenance Manual Chapter 1. Safety information 17 18 ThinkPad P52 Hardware Maintenance Manual Chapter 1. Safety information 19 20 ThinkPad P52 Hardware Maintenance Manual Chapter 2. Important service information This chapter introduces following important service information that applies to all machine types supported by this manual: • “Strategy for replacing FRUs” on page 21 – “Strategy for replacing a hard disk drive or a solid-state drive” on page 21 – “Important notice for replacing a system board” on page 22 – “How to use error message” on page 22 • “Strategy for replacing FRUs for CTO, special-bid, and standard models” on page 22 – “Product definition” on page 22 – “FRU identification” on page 22 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: 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/ Strategy for replacing FRUs Before replacing 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 following strategy to prevent unnecessary expense for replacing and servicing FRUs: • If you are instructed to replace a FRU but the replacement does not correct the problem, reinstall the original FRU before you continue. • Some computers have both a processor board and a system board. If you are instructed to replace either the processor board or the system board, and replacing one of them does not correct the problem, reinstall that board, and then replace the other one. • If an adapter or a device consists of more than one FRU, any of the FRUs may be the cause of the error. Before replacing the adapter or device, remove the FRUs, one by one, to see if the symptoms change. Replace only the FRU that changed the symptoms. Strategy for replacing a hard disk drive or a solid-state drive Always try to run a low-level format before replacing a hard disk drive or a solid-state drive. This will cause all customer data on the drive to be lost. Be sure that the customer has a current backup of the data before doing this task. Attention: The drive startup sequence in the computer you are servicing may have been changed. Be extremely careful during write operations such as copying, saving, or formatting. If you select an incorrect drive, data or programs can be overwritten. © Copyright Lenovo 2018 21 Important notice for replacing a system board Some components mounted on a system board are very sensitive. Improper handling of a system board can cause damage to those components, and may cause a system malfunction. Attention: When handling a system board: • Do not drop a system board or apply any excessive force to it. • Avoid rough handling of any kind. • Avoid bending a system board and hard pushing to prevent cracking at each BGA (Ball Grid Array) chipset. How to use error message Use the error codes displayed on the screen to diagnose failures. If more than one error code is displayed, begin the diagnosis with the first error code. Whatever causes the first error code may also cause false error codes. If no error code is displayed, see whether the error symptom is listed in the Symptom-to-FRU Index for the computer you are servicing. Strategy for replacing FRUs for CTO, special-bid, and standard models This topic provides information about the model types and FRU identification. Product definition This topic introduces different model 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 model is “CTO1” and the default country code is “WW” (example: 20AACTO1WW). Special-bid model This is a unique configuration that has been negotiated between Lenovo and the customer. A unique MTM consists of a 4-character MT, a 4-character model, and a numeric 2-character country code is provided to the customer to place orders (example: 20AA000955). The country code assigned is numeric and does not designate a specific country or region. The custom model factsheet for the MTM indicates which country the special bid MTM is set up for. Special-bid offering is not generally announced. Standard model Standard models (fixed configuration) are announced and offered to all customers. The MTM portion of the machine label consists of a 4-character MT, a 4-character model, and an alphabetic 2-character country code. The country code assigned is alphabetic and represents a designated country or region (example: 20AA0009UK). FRU identification Use Lenovo eSupport to identify major FRUs, FRU part numbers, and FRU descriptions for a product at an MT - serial number level. Examples of major FRUs are hard disk drive, system board, liquid crystal display (LCD), and memory module. To identify FRUs for a product, do the following: 1. Go to: https://support.lenovo.com/partslookup 22 ThinkPad P52 Hardware Maintenance Manual 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 24 ThinkPad P52 Hardware Maintenance Manual Chapter 3. General checkout This chapter introduces following information: • “What to do first” on page 25 • “Checkout guide” on page 26 – “Diagnosing problems” on page 26 – “Quick test programs” on page 27 – “UEFI diagnostic program” on page 27 – “Bootable diagnostic programs” on page 27 • “Power system checkout” on page 28 Before you go to the checkout guide, be sure to read the following important notes. Important notes: • Only certified trained personnel should service the computer. • Before replacing any FRU, read the entire page on removing and replacing FRUs. • When you replace FRUs, it is recommended use new nylon-coated screws. • Be extremely careful during such write operations as copying, saving, or formatting. The sequence of the drives in the computer that you are servicing might have been altered. If you select an incorrect drive, data or programs might be overwritten. • Replace a FRU only with another FRU of the correct model. When you replace a FRU, ensure that the model of the machine and the FRU part number are correct by referring to the web site: https:// support.lenovo.com/partslookup • A FRU should not be replaced because of a single, unreproducible failure. Single failures can occur for a variety of reasons that have nothing to do with a hardware defect, such as cosmic radiation, electrostatic discharge, or software errors. Consider replacing a FRU only when a problem recurs. If you suspect that a FRU is defective, clear the error log and run the test again. If the error does not recur, do not replace the FRU. • Be careful not to replace a nondefective FRU. What to do first When you return a FRU, you must include the following information in the parts exchange form or parts return form that you attach to it: 1. Name and phone number of service technician 2. Date of service 3. Date on which the machine failed 4. Date of purchase 5. Failure symptoms, error codes appearing on the display, and beep symptoms 6. Procedure index and page number in which the failing FRU was detected 7. Failing FRU name and part number 8. Machine type, model number, and serial number 9. Customer's name and address Note: During the warranty period, the customer may be responsible for repair costs if the computer damage was caused by misuse, accident, modification, unsuitable physical or operating environment, or improper maintenance by the customer. 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 25 Before checking problems with the computer, determine whether the damage is covered under the warranty by referring to the following list: The following are not covered under warranty: • LCD panel cracked from the application of excessive force or from being dropped • Scratched (cosmetic) parts • Distortion, deformation, or discoloration of the cosmetic parts • Plastic parts, latches, pins, or connectors that have been cracked or broken by excessive force • Damage caused by liquid spilled into the system • Damage caused by the improper insertion of a personal-computer card (PC card) or the installation of an incompatible card • Improper disc insertion or use of an optical drive • Fuses blown by attachment of a nonsupported device • Forgotten computer password (making the computer unusable) • Sticky keys caused by spilling a liquid onto the keyboard • Use of an incorrect ac power adapter on laptop products The following symptoms might indicate damage caused by nonwarranted activities: • Missing parts might be a symptom of unauthorized service or modification. • Check for obvious damage to a hard disk drive. If the spindle of a hard disk drive becomes noisy, the hard disk drive might have been dropped or subject to excessive force. Checkout guide Use the following procedures as a guide in identifying and correcting problems with the ThinkPad notebook computers. Note: The diagnostic tests are intended to test only ThinkPad products. The use of non-ThinkPad products, prototype cards, or modified options can lead to false indications of errors and invalid system responses. 1. Identify the failing symptoms in as much detail as possible. 2. Verify the symptoms. Try to re-create the failure by running the diagnostic test or by repeating the operation. Diagnosing problems Many computer problems can be solved without outside assistance. If you experience a problem with your computer, the first place to start is the troubleshooting information in your computer documentation. If you suspect a software problem, see the documentation, including readme files and help information systems, that come with the operating system or program. ThinkPad notebook computers come with a set of diagnostic programs that you can use to help you identify hardware problems. Diagnosing problems with Lenovo Vantage on the Windows 10 operating system 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. Lenovo Vantage supports the hardware scan function. It combines diagnostic tests, system information collection, security status, and support information, along with hints and tips for optimal system performance. The troubleshooting information or the diagnostic programs might tell you that you need additional or updated device drivers or other software. You can get the latest technical information and download device drivers and updates from the Lenovo Support Web site at: 26 ThinkPad P52 Hardware Maintenance Manual https://support.lenovo.com For additional information, see the Lenovo Vantage help system. Quick test programs Lenovo provides quick test programs to troubleshoot and resolve computer problems. To download and install a quick test program, go to https://www.lenovo.com/diags, and follow the instructions on the Web site. To run a test using quick test program, do the following: 1. Go to the C:\SWTOOLS\ldiag directory. 2. Double-click the lsc_lite.exe file. 3. When the User Account Control window opens, click Yes. 4. Select the device class to be tested. 5. Select the devices to be tested. 6. Select the test to be performed. 7. Follow the instructions on the screen to start the test. When a problem is detected, information messages are displayed. Refer to the messages to troubleshoot the problem. UEFI diagnostic program A UEFI diagnostic program is preinstalled on the computer. It enables you to test memory modules and internal storage devices, view system information, and check and recover bad sectors on internal storage devices. To run the UEFI diagnostic program, do the following: 1. Turn on the computer. If the computer cannot be turned on, go to “Power system checkout” on page 28, and check the power sources. If an error code is displayed, go to “Symptom-to-FRU index” on page 35 for error code descriptions and troubleshooting hints. 2. When the logo screen is displayed, repeatedly press and release the F10 key. The main screen of the UEFI diagnostic program is displayed. 3. Follow the instructions on the screen to use the diagnostic program. Bootable diagnostic 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. To use the bootable diagnostic programs, you can create a bootable diagnostic medium on a USB device or CD. To create a bootable diagnostic medium, do the following: 1. Go to https://www.lenovo.com/diags. 2. Click Lenovo Bootable Diagnostics. 3. Follow the instructions on the Web site to create a bootable diagnostic medium on a USB device or CD. To use the diagnostic medium you have created, do one of the following: • If you have created the bootable diagnostic medium on a USB device, do the following: Chapter 3. General checkout 27 1. Attach the USB device to the computer. 2. Turn on the computer. If the computer cannot be turned on, go to “Power system checkout” on page 28, and check the power sources. If an error code is displayed, go to “Symptom-to-FRU index” on page 35 for error code descriptions and troubleshooting hints. 3. When the logo screen is displayed, repeatedly press and release the F12 key. When the Boot Menu window opens, release the F12 key. 4. Use the arrow keys to select USB HDD and then press Enter. The diagnostic program will be launched automatically. 5. Follow the instructions on the screen to use the diagnostic program. • If you have created the bootable diagnostic medium on a CD, do the following: 1. Turn on the computer. If the computer cannot be turned on, go to “Power system checkout” on page 28, and check the power sources. If an error code is displayed, go to “Symptom-to-FRU index” on page 35 for error code descriptions and troubleshooting hints. 2. Insert the CD into the optical drive. 3. Restart the computer. 4. When the logo screen is displayed, repeatedly press and release the F12 key. When the Boot Menu window opens, release the F12 key. 5. Use the arrow keys to select ATAPI CDx (x: 0, 1, ...) and then press Enter. The diagnostic program will be launched automatically. 6. Follow the instructions on the screen to use the diagnostic program. Power system checkout To verify if a battery pack or an ac power adapter is functional, do the following: 1. Turn off the computer. 2. Connect the ac power adapter. 3. Turn on the computer. If the computer can be turned on, it means that either the battery pack or the ac power adapter is functional. 4. Insert a straightened paper clip into the emergency reset hole to reset the computer. If the computer is still powered on, it means that the ac power adapter is functional. 5. Turn off the computer. 6. Disconnect the ac power adapter and turn on the computer. If the computer can be turned on, it means that the battery pack is functional. If you suspect a power problem, see the appropriate one of the following power supply checkouts: • “Checking the ac power adapter” on page 28 • “Checking the operational charging” on page 29 • “Checking the coin-cell battery” on page 30 Checking the ac power adapter 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: 28 ThinkPad P52 Hardware Maintenance Manual 3 2 1 Pin Voltage (V dc) 1 +20 2 0 3 Ground (20V) Note: Output voltage of pin 2 of the ac power adapter might differ from the one you are servicing. 3. If the voltage is not correct, replace the ac power adapter. 4. If the voltage is acceptable, replace the system board. Note: Noise from the ac power adapter does not always indicate a defect. If the computer does not charge during operation, go to “Checking the operational charging” on page 29. 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. 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. To check whether the battery charges properly during operation, do the following: 1. Discharge the battery until the remained battery power is less than 50%. 2. Connect the computer to ac power to charge the battery. If the battery status icon in the Windows notification area indicates that the battery is not charging, remove the battery and let it return to room temperature. 3. Reinstall the battery. If the battery is still not charging, replace the battery pack. 4. Check the battery status icon again. If the same error still exists, replace the system board. Checking the battery pack To check the battery pack, do the following: 1. Turn off the computer and disconnect the ac power adapter. 2. Remove the battery pack and measure the voltage between battery terminals 1 (+) and 7 (-). The correct voltage are shown in the following table. 1(+) 2(+) 5 3 4 6(-) Terminal Voltage (V dc) 1 + 0 to + 12.6 7 Ground (-) 7(-) Chapter 3. General checkout 29 3. Measure the resistance between battery terminals 5 and 7. The resistance must be 4 to 30 K Ω. If the resistance is not correct, replace the battery pack. 4. Depending on the voltage that you measure, do one of the following: • If the voltage is less than +11.0 V dc, recharge the battery pack. If the voltage is still less than +11.0 V dc after recharging, replace the battery pack. • If the voltage is more than +11.0 V dc, discharge the battery pack until the voltage becomes less than +11.0 V dc and then recharge the battery pack. If the voltage still is less than +11.0 V dc after recharging, replace the battery pack. Note: Recharging will take at least three hours, even if the battery status indicator does not turn on. 5. Replace the system board if the new battery pack is not charged. Checking the coin-cell battery To check the coin-cell battery, do the following: 1. Remove the battery pack. See “1010 Battery” on page 71. 2. Remove the coin-cell battery. See “1050 Coin-cell battery” on page 74. 3. Measure the voltage of the coin-cell battery. See the following illustration. Wire Voltage (V dc) Red +2.5 to +3.2 Black 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. 30 ThinkPad P52 Hardware Maintenance Manual Chapter 4. Related service information This chapter presents following information: • “Recovery overview for the Windows 10 operating system” on page 31 • “Passwords” on page 32 • “Power management” on page 34 • “Symptom-to-FRU index” on page 35 Service Web site: When the latest maintenance diskette and the system program service diskette become available, they will be posted on https://support.lenovo.com Recovery overview for the Windows 10 operating system The Windows recovery programs enable you to reset your computer or use advanced startup options. It is recommended that you create a recovery USB drive as early as possible. Store the recovery 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 computer, do the following: Note: The graphical user interface (GUI) items of the operating system might change without notice. 1. Open the Start menu and then click Settings. If Settings is not displayed, click All apps to display all programs, and then click Settings ➙ Update & security ➙ Recovery. 2. In the Reset this PC section, click Get started. 3. Follow the instructions on the screen to reset your computer. Using advanced startup options With advanced startup options, you can change the firmware settings of the computer, change the startup settings of the Windows operating system, start the computer from an external device, or restore the Windows operating system from a system image. To use advanced startup options, do the following: Note: The GUI items of the operating system might change without notice. 1. Open the Start menu and then click Settings. If Settings is not displayed, click All apps to display all programs, and then click 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 31 Recovering your operating system if Windows 10 fails to start The Windows recovery environment on your computer is capable of operating independently from the Windows 10 operating system. This enables you to recover or repair the operating system even if the Windows 10 operating system fails to start. After two consecutive failed boot attempts, the Windows recovery environment starts automatically. Then you can choose repair and recovery options by following the instructions on the screen. Note: Ensure that your computer is connected to ac power during the recovery process. Creating and using a recovery USB drive You can create a recovery USB drive as a backup for the Windows recovery programs. With the recovery USB drive, you can troubleshoot and fix the problems even if the preinstalled Windows recovery programs are damaged. Creating a recovery USB drive The USB drive that you use to create the recovery USB drive must be at least 16 GB of storage. 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 data loss, make a backup copy of all the data that you want to keep. To create a recovery USB drive, do the following: Note: Ensure that your computer is connected to ac power during the following process. 1. Connect a proper USB drive (at least 16 GB of storage). 2. Type recovery in the search box on the taskbar. Then click Create a recovery drive. 3. Click Yes in the User Account Control window to allow the Recovery Media Creator program to start. 4. In the Recovery Drive window, follow the on-screen instructions to create a recovery USB drive. Using the recovery USB drive If you cannot start your computer, use the recovery USB drive to recover your computer. To use a recovery USB drive, do the following: Note: Ensure that your computer is connected to ac power. 1. Connect the recovery USB drive to the computer. 2. Turn on or restart the computer. Before the Windows operating system starts, repeatedly press the F12 key. The Boot Menu window opens. 3. Select the recovery USB drive as the boot device. 4. Select a preferred keyboard layout. 5. Click Troubleshoot to display the optional recovery solutions. 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. 32 ThinkPad P52 Hardware Maintenance Manual If any of these passwords has been set, a prompt for it will be displayed on the screen whenever the computer is turned on. The computer does not start until the password is entered. Note: If only a supervisor password is set, the password prompt will not be displayed when the operating system is started. Power-on password A power-on password protects the system from being powered on by an unauthorized person. The password must be entered before an operating system can be started. For instructions on how to remove the power-on password, see “How to remove the power-on password” on page 33. Hard disk password There are two kinds of hard disk passwords: • User hard disk password - for the user • Master hard disk password - for the system administrator, who can use it to get access to the hard disk even if the user has changed the user hard disk password Note: There are two modes for the hard disk password: User only and Master + User. The Master + User 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 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. For how to remove the hard disk password, see “How to remove the hard disk password” on page 34. Supervisor password The supervisor password protects the system information stored in the ThinkPad Setup program. It provides the following security features: • If only a supervisor password is set, a password prompt is displayed when you try to start the ThinkPad Setup program. Unauthorized users cannot change most of the system configuration options in the ThinkPad Setup program without the password. • The system administrator can use the supervisor password to access a computer even if the user of that computer has set a power-on password. The supervisor password overrides the power-on password. • The system administrator can set the same supervisor password on many ThinkPad notebook computers to make administration easier. Attention: If the supervisor password has been forgotten and cannot be made available to the service technician, there is no service procedure to reset the password. The system board must be replaced for a scheduled fee. How to remove the power-on password To remove a power-on password, do the following: If no supervisor password has been set, do the following to remove the power-on password: 1. Turn off the computer. 2. Remove the battery pack. For instructions on how to remove the battery pack, see “1010 Battery” on page 71. Chapter 4. Related service information 33 3. Remove the coin-cell battery. For instructions on how to remove the coin-cell battery, see “1050 Coincell battery” on page 74. Wait for a few seconds. 4. Reinstall the coin-cell battery. For instructions on how to install the coin-cell battery, see “1050 Coin-cell battery” on page 74. 5. Reinstall the battery pack. For instructions on how to install the battery pack, see “1010 Battery” on page 71. 6. Turn on the computer and wait until the POST ends. After the POST ends, the password prompt does not appear. The power-on password has been removed. If a supervisor password has been set and is known to the service technician, do the following to remove the power-on password: 1. Turn on the computer. 2. When the Lenovo logo is displayed, immediately press F1. 3. Type the supervisor password to enter the ThinkPad Setup program. 4. Select Security. 5. Select Password. 6. Select Power-On Password. 7. Type the current supervisor password in the Enter Current Password field. then leave the Enter New Password field blank, and press Enter twice. 8. In the Changes have been saved window, press Enter. 9. Press F10 to save changes and exit the ThinkPad Setup program. How to remove the hard disk password Attention: If User only mode is selected and the user hard disk password 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 hard disk passwords or to recover data from the hard disk drive. 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. To remove a user hard disk password that has been forgotten, when the supervisor password and master hard disk password are known, do the following: 1. Turn on the computer. 2. When the logo screen comes up, immediately press F1 to enter the ThinkPad Setup program. 3. Select Security. 4. Select Password. 5. Select Hard-disk x password, where x is the letter of the hard disk drive. A pop-up window opens. 6. Select Master hard disk password. 7. Type the current master hard disk password in the Enter Current Password field. Then leave the Enter New Password field blank, and press Enter twice. 8. Press F10. 9. Press F10 to save changes and exit the ThinkPad Setup program. The user hard disk password and the master hard disk password have been removed. Power management To reduce power consumption, the computer has two power management modes: sleep and hibernation. 34 ThinkPad P52 Hardware Maintenance Manual 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 Sleep. Power, and then click To return to normal operation, press the Fn key only. In certain circumstances, the computer goes into sleep mode automatically: • After a period of inactivity specified in power plan settings • When the battery power is low Hibernation mode In hibernation mode, the following occurs: • The system status, random access memory (RAM), video random access memory (VRAM), and setup data are stored on the hard disk drive or solid-state drive. • The system is powered off. Note: If the computer enters the hibernation mode while it is docked to the docking station or the port replicator, do not undock it before resuming normal operation. If you do undock it and then try to resume normal operation, you will get an error message, and you will have to restart the system. 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. Also, the computer goes into hibernation mode automatically after a period of inactivity specified in power plan settings. When the power is turned on, the computer returns from hibernation mode and resumes operation. The hibernation file in the boot record on the hard disk drive or solid-state drive is read, and system status is restored from the hard disk drive or solid-state drive. Symptom-to-FRU index This section contains following information: • “Numeric error codes” on page 36 • “Error messages” on page 37 • “Beep errors” on page 38 • “No-beep symptoms” on page 39 • “LCD-related symptoms” on page 39 • “Intermittent problems” on page 40 • “Undetermined problems” on page 40 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. Chapter 4. Related service information 35 Note: Do the FRU replacement or other actions in the sequence shown in the column headed “FRU or action, in sequence.” If replacing a FRU does not solve the problem, put the original part back in the computer. Do not replace a nondefective FRU. This index can also help you determine, during regular servicing, what FRUs are likely to need to be replaced next. A numeric error is displayed for each error detected in POST or system operation. In the displays, n can be any number. If no numeric code is displayed, check the narrative descriptions of symptoms. If the symptom is not described there, go to “Intermittent problems” on page 40. Note: For a device not supported by diagnostic codes in the ThinkPad notebook computers, see the manual for that device. Numeric error codes Table 1. Numeric error codes Symptom or error FRU or action, in sequence 0177 Bad SVP data, stop POST task — The checksum of the supervisor password in the EEPROM is not correct. Replace the system board. 0183 Bad CRC of Security Settings in EFI Variable. Enter the ThinkPad Setup program. – The checksum of the Security settings in the EFI Variable is not correct. 1. Run the ThinkPad Setup program. The settings will be corrected automatically. Then save the current settings by pressing F10. 2. Replace the system board. 0187 EAIA data access error — The access to EEPROM is failed. Replace the system board. 0188 Invalid RFID Serialization Information Area. Replace the system board. 0189 Invalid RFID configuration information area — The EEPROM checksum is not correct. Replace the system board. 0190 Critical low-battery error 1. Charge the battery pack. 2. Replace the battery pack. 0191 System Security — Invalid Remote Change requested. 1. Run the ThinkPad Setup program, and then save current setting by pressing F10. 2. Replace the system board. 0199 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. 0270 Real Time Clock Error — System Real Time Clock is not functional. 1. Run ThinkPad Setup to reset the time and date 2. Replace the coin-cell battery and run ThinkPad Setup to reset the time and date. 0271 Check Date and Time settings — Neither the date nor the time is set in the computer. 1. Run ThinkPad Setup to reset the time and date 2. Replace the coin-cell battery and run ThinkPad Setup to reset the time and date. 36 ThinkPad P52 Hardware Maintenance Manual Table 1. Numeric error codes (continued) Symptom or error 1802 Unauthorized network card is plugged in — Turn off and remove the network card. 1820 More than one external fingerprint reader is attached. Power off and remove all but the reader that you set up within your main operating system. FRU or action, in sequence 1. Remove network card. 2. Replace the system board. Remove all but the reader that you set up for the authentication. 2100 Detection error on HDD0 (Main HDD) 1. Reseat the hard disk drive. 2. Replace the main hard disk drive. 3. Replace the system board. 2101 Detection error on SSD1 (M.2) 1. Reseat the M.2 solid-state drive. 2. Replace the M.2 solid-state drive. 3. Replace the system board. 2102 Detection error on SSD2 (M.2) 1. Reseat the M.2 solid-state drive. 2. Replace the M.2 solid-state drive. 3. Replace the system board. 2110 Read error on HDD0 (Main HDD) 1. Reseat the hard disk drive. 2. Replace the main hard disk drive. 3. Replace the system board. 2111 Read error on SSD1 (M.2) 1. Reseat the M.2 solid-state drive. 2. Replace the M.2 solid-state drive. 3. Replace the system board. 2112 Read error on SSD2 (M.2) 1. Reseat the M.2 solid-state drive. 2. Replace the M.2 solid-state drive. 3. Replace the system board. 2200 Machine Type and Serial Number are invalid. Replace the system board. 2201 Machine UUID is invalid Replace the system board. Error messages Table 2. Error messages Symptom or error FRU or action, in sequence Fan error. 1. Replace the fan. 2. Apply thermal grease. 3. Replace the system board. One fan error. 1. Replace the fan. 2. Apply thermal grease. 3. Replace the system board. Thermal sensing error. Replace the system board. The non-volatile system UEFI variable storage is nearly full. Press F1 to enter ThinkPad Setup after the error message is displayed. Then clean up the storage. Chapter 4. Related service information 37 Table 2. Error messages (continued) Symptom or error FRU or action, in sequence The battery installed is not supported by this system and will not charge. Please replace the battery with the correct Lenovo battery for this system. Press the ESC key to continue. Replace the battery. This system does not support batteries that are not genuine Lenovo made or authorized. The system will continue to boot, but may not charge unauthorized batteries. Press the ESC key to continue. 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. Replace the battery. 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. Go to https://support.lenovo.com/smartbeep or scan the following QR Code. 2. Download the proper diagnostic app and install it on your smartphone. 3. Run the diagnostic app and place the smartphone near the computer. 4. Press the Fn key on your computer to emit the beep again. The diagnostic app decodes the beep error and shows possible solutions on the smartphone. The following section describes some beep errors and the corresponding solutions. Note: Do not attempt to service a product yourself unless instructed to do so by the Customer Support Center or product documentation. Only use a Lenovo-authorized service provider to repair your product. Error codes 0001: Reset error (platform reset not de-asserted) Solutions 1. Remove all power resources (the ac power adapter, removable battery, and coin-cell battery). 2. Replace the system board (service provider only). 0002: Internal bus error 0281: General embedded controller error 38 ThinkPad P52 Hardware Maintenance Manual Replace the system board (service provider only). Replace the system board (service provider only). Error codes 0282: Memory module error Solutions 1. Reinstall or replace the memory module. 2. Replace the system board (service provider only). 0283: PCI resource error 1. Remove PCIe devices (the M.2 card, PCIe card, and so on) (service provider only). 2. Replace the system board (service provider only). 0284: TCG-compliant functionality-related error (might be the BIOS code validation failure) Replace the system board (service provider only). 0285: TCG-compliant functionality-related error (might be the TPM initialization failure) Replace the system board (service provider only). 0286: Integrated graphics error 0287: Discrete graphics error Replace the system board (service provider only). 1. Reinstall or replace the discrete graphics card (service provider only). 2. Replace the system board (service provider only). 0288: Computer display error 1. Reconnect the display cable on both the system board side and the computer display side (service provider only). 2. Replace the system board (service provider only). No-beep symptoms Table 3. No-beep symptoms Symptom or error FRU or action, in sequence No beep, power-on indicator on, LCD blank, and no POST. 1. Ensure that every connector is connected tightly and correctly. 2. Reseat memory module. 3. Replace the system board. No beep, power-on indicator on, and LCD blank during POST. 1. Reseat memory module. 2. 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 notebook computer contains many thin-film transistors (TFTs). The presence of a small number of dots that are missing, discolored, or always lighted is characteristic of TFT LCD technology, but excessive pixel problems can cause viewing concerns.If the LCD you are servicing has two or less visible defective pixels, it should not be considered faulty. However, if the LCD has three or more visible defective pixels, it will be deemed as defective by Lenovo and it should be replaced. Notes: • This policy applies to all ThinkPad notebooks purchased on 1 January, 2008 or later. Chapter 4. Related service information 39 • 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 No beep, power-on indicator on, and a blank LCD during POST. Replace the system board. • • • • LCD backlight not working. LCD too dark. LCD brightness cannot be adjusted. LCD contrast cannot be adjusted. 1. Reseat the LCD connectors. 2. Replace the LCD assembly. 3. Replace the system board. • • • • LCD screen unreadable. Characters missing pixels. Screen abnormal. Wrong color displayed. 1. 2. 3. 4. Horizontal or vertical lines displayed on LCD. See important note for “LCD-related symptoms.” Reseat all LCD connectors. Replace the LCD assembly. Replace the system board. 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 problem recurs. When analyzing an intermittent problem, do the following: 1. Run the diagnostic test for the system board in loop mode at least 10 times. 2. If no error is detected, do not replace any FRUs. 3. If any error is detected, replace the FRU shown by the FRU code. Rerun the test to verify that no more errors exist. Undetermined problems If the diagnostic tests did not identify the adapter or device that has failed, if wrong devices are installed, or if the system simply is not operating, follow these procedures to isolate the failing FRU (do not isolate FRUs that have no defects). Verify that all attached devices are supported by the computer. Verify that the power supply being used at the time of the failure is operating correctly. See “Power system checkout” on page 28. 1. Turn off the computer. 2. Visually check each FRU for damage. Replace any damaged FRU. 3. Remove or disconnect all of the following devices: a. Non-ThinkPad devices b. Devices attached to the docking station or the port replicator c. Printer, mouse, and other external devices d. Battery pack e. Hard disk drive or solid-state drive f. External diskette drive or optical drive g. Memory module h. PC cards 4. Turn on the computer. 40 ThinkPad P52 Hardware Maintenance Manual 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 unit Chapter 4. Related service information 41 42 ThinkPad P52 Hardware Maintenance Manual Chapter 5. Configuring RAID This chapter provides information about storage drive requirements for Redundant Array of Independent Disks (RAID) levels, and instructions on how to configure RAID for your computer. An Introduction to RAID RAID is a technology that provides increased storage functions and reliability through redundancy. When a group of independent physical storage drives is set up to use RAID technology, they are in a RAID array. This array distributes data across multiple storage drives, but the array appears to the host computer as one single storage unit. Creating and using RAID arrays provides high performance, such as the expedited I/O performance, because several drives can be accessed simultaneously. RAID drive groups configured according to certain RAID levels also improve data storage reliability and fault tolerance compared with single-drive storage systems. Data loss resulting from a drive failure can be prevented by reconstructing missing data from the remaining drives. Note: For RAID 0, the missing data resulting from a drive failure cannot be reconstructed. Storage drive requirements for RAID levels Your computer supports the following internal storage drives: • 2.5-inch form factor, 7-mm (0.28-inch) height hard disk drive • M.2 Non-Volatile Memory Express (NVMe) solid-state drive (available on some models) Note: Ensure that your computer has two identical storage drives installed (two M.2 NVMe solid-state drives with the same capacity) for supported RAID levels. If only one drive is installed, or two different types of drives are installed, the following information does not apply. Your computer supports the following RAID levels: • RAID 0: striped disk array – Consists of two identical storage drives – Supported strip size: 4 KB, 8 KB, 16 KB, 32 KB, 64 KB, or 128 KB – Better performance without fault tolerance – Higher risk of data loss resulting from a member drive failure compared with non-RAID configuration • RAID 1: mirrored disk array – Consists of two identical storage drives – Improved reading performance and 100% redundancy Configuring RAID with the Intel RST configuration utility 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 43 • How to reset storage drives to non-RAID • How to rebuild RAID 1 volumes Entering the Intel RST configuration utility This topic provides instructions on how to enter the Intel RST configuration utility. Enabling RAID from ThinkPad Setup If RAID is disabled, you must enable it manually before entering the Intel RST configuration utility. To enable RAID, do the following: 1. Restart the computer. When the logo screen is displayed, press F1 to start the ThinkPad Setup program. 2. Select Config ➙ Storage ➙ Controller Mode ➙ RST mode and then press Enter. 3. Press F10 to save changes and exit. Entering the Intel RST configuration utility To enter the Intel RST configuration utility, do the following: 1. Restart the computer. When the logo screen is displayed, press F1 to start the ThinkPad Setup program. 2. Select Config ➙ Storage ➙ Intel (R) Rapid Storage Technology and then press Enter to open the Intel (R) Rapid Storage Technology window. The following options are displayed after you enter the Intel RST configuration utility: • Create RAID Volume: This option is used to create a RAID volume. If no internal storage drives can be used, this option is not available. • RAID Volumes: This option is used to confirm the information of the created RAID volumes. • Non-RAID Physical Disks: This option is used to confirm the information of all non-RAID drives. Press the up and down arrow keys to select an option. Press Enter to enter the menu for the selected option. Press Esc to exit the Intel RST configuration utility. Creating RAID volumes This topic provides instructions on how to use the Intel RST configuration utility to create RAID volumes. Attention: All the existing data stored on the selected drives will be erased while the RAID volume is being created. To create a RAID volume, do the following: 1. Enter the Intel RST configuration utility. See “Entering the Intel RST configuration utility” on page 44. 2. Press the up and down arrow keys to select Create RAID Volume, and then press Enter to open the CREATE RAID VOLUME window. 3. Press the up and down arrow keys to select and configure the options one by one. a. 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) 44 ThinkPad P52 Hardware Maintenance Manual 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. Strip Size: Press the up and down arrow keys to select a strip size, and then press Enter to complete the configuration. Note: This option is only available for RAID 0. e. Capacity: Customize the capacity of the RAID volume. The default RAID volume is the largest value. f. Create Volume: Press Enter to finish configurations of the preceding options and create a volume. Note: The Create Volume option might not be selectable for some reasons, for example, if different types of drives are selected, the option is not selectable. If it is not selectable, see the message displayed under Create Volume for reference. After the RAID volume is created, the Intel (R) Rapid Storage Technology window is displayed, and the created volume is displayed under RAID Volumes. 4. Press F10 to save changes and exit. Deleting RAID volumes This topic provides instructions on how to use the Intel RST configuration utility to delete RAID volumes. Attention: All the existing data stored on the selected drives will be erased after you delete RAID volumes. To delete a RAID volume, do the following: 1. Enter the Intel RST configuration utility. See “Entering the Intel RST configuration utility” on page 44. 2. Press the up and down arrow keys to select the volume that you want to delete under RAID Volumes. Press Enter to open the RAID VOLUME INFO window. 3. Select Delete and press Enter to delete it from the RAID Volumes list. 4. When prompted, select Yes to confirm the deletion of the selected RAID volume. After you delete the RAID volume, the Intel (R) Rapid Storage Technology window is displayed. Member drives of the deleted volume are displayed under Non-RAID Physical Disks. 5. Press F10 to save changes and exit. Resetting storage drives to non-RAID This topic provides instructions on how to use the Intel RST configuration utility to reset storage drives to non-RAID. Attention: All the existing data stored on the selected drive will be erased after you reset it to non-RAID. To reset a storage drive to non-RAID, do the following: 1. Enter the Intel RST configuration utility. See “Entering the Intel RST configuration utility” on page 44. 2. Press the up and down arrow keys to select the volume that you want to reset under RAID Volumes. Press Enter to open the RAID VOLUME INFO window. 3. Press the up and down arrow keys to select the drive that you want to reset under RAID Member Disks. Press Enter to open the PHYSICAL DISK INFO window. 4. Select Reset to Non-RAID and press Enter. When prompted, press Yes to confirm the reset action. Chapter 5. Configuring RAID 45 After the reset process finishes, the Intel (R) Rapid Storage Technology window is displayed. The reset drive is listed under Non-RAID Physical Disks, and the volume of the reset drive is still listed under RAID Volumes, but the status is changed from Normal to Failed or Degraded. 5. Press F10 to save changes and exit. Rebuilding RAID 1 volumes If the status of a RAID 1 volume is Failed or Degraded, you can rebuild it through the Intel RST configuration utility. To rebuild a RAID 1 volume, ensure that at least one member drive of the RAID 1 volume works correctly. Replace the failed drive with a new one that has the same capacity before you rebuild a RAID 1 volume. To rebuild a RAID 1 volume, do the following: 1. Enter the Intel RST configuration utility. See “Entering the Intel RST configuration utility” on page 44. 2. Press the up and down arrow keys to select the volume that you want to rebuild under RAID Volumes. Press Enter to open the RAID VOLUME INFO window. 3. Select Rebuild and press Enter to open the Rebuild Volume window. 4. Select the drive that you want to rebuild and press Enter to initiate the rebuild process. After you initiate the rebuild process, the Intel (R) Rapid Storage Technology window is displayed. The 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. 46 ThinkPad P52 Hardware Maintenance Manual Chapter 6. Using the special keys Your computer has several special keys to help you work more easily and effectively. 1 Numeric keypad You can use this numeric keypad to input numbers quickly. 2 Windows logo key Press the Windows logo key to open the Start menu. For information about using the Windows logo key with other keys, see the help information system of the Windows operating system. 3 4 Fn key and function keys You can configure the Fn key and function keys by doing the following: 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. • • + Switch the key function between the standard F1–F12 function and the special function printed as an icon on each key. When the Fn Lock indicator is off, you can use the default function. You can change the default function in the Keyboard Properties window. Mute or unmute the speakers. If you mute the sound and turn off your computer, the sound will remain muted when you turn on your computer. To turn on the sound, press • Decrease the speaker volume. • Increase the speaker volume. • Mute or unmute the microphones. • Darken the computer display. • Brighten the computer display. • Manage external displays. © Copyright Lenovo 2018 or . 47 • Enable or disable the built-in wireless features. • Open the Settings window. • Enable or disable the built-in Bluetooth features. • Open a keyboard setting page. • 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. On this setting page, you can also define different functions for the key combinations with F12, such as Shift+F12, Alt+F12, or Ctrl+F12. Key combinations • + : Open the calculator. • + : Put your computer to sleep mode. • + : Open the Snipping Tool program. • Fn+Spacebar: If your computer supports keyboard backlight, press Fn+Spacebar to switch between the different keyboard backlight status. • Fn+B: This key combination has the same function as the Break 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+P: This key combination 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+4: Press Fn+4 to put the computer to sleep mode. To wake up the computer, press the Fn key or the power button. • Fn+Left arrow key: This key combination has the same function as the Home key. • Fn+Right arrow key: This key combination has the same function as the End key. 48 ThinkPad P52 Hardware Maintenance Manual Chapter 7. Locations This chapter introduces the locations of the hardware components on your computer. Locating computer controls, connectors, and indicators This topic introduces the locations of the computer controls, connectors, and indicators. Front view © Copyright Lenovo 2018 49 1 Infrared camera (available on some models) 2 Conventional camera (available on models with the infrared camera) 3 Microphones 4 Conventional camera with ThinkShutter (lens cover) (available on some models) 5 Power button 6 Numeric keypad 7 Fingerprint reader 8 NFC label (available on some models) 9 Trackpad with buttons 10 TrackPoint® buttons 11 TrackPoint pointing stick 12 Speakers 13 Multi-touch screen (available on some models) Side views 1 Fan louvers 2 Always On USB 3.1 connector Gen 1 3 SD-card slot 4 Smart-card slot (available on some models) 1 Audio connector 2 USB 3.1 connectors Gen 1 3 Mini DisplayPort® connector 5 Security-lock slot Rear view 50 ThinkPad P52 Hardware Maintenance Manual 4 Fan louvers 1 Fan louvers 2 Ethernet connector 3 HDMI™ connector 4 USB-C™ connectors (Thunderbolt™ 3 compatible) 5 Power connector Bottom view 1 Fan louvers 2 Keyboard drainage hole 3 Removable battery 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 51 52 ThinkPad P52 Hardware Maintenance Manual 1 Camera status indicator 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. • 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. • Blinks slowly: The computer is in sleep mode. 3 Numeric Lock indicator When this indicator is on, you can use the numeric keypad to type numbers. 4 Fingerprint reader indicator This indicator shows the status of fingerprint reader. • 1 Off: The fingerprint reader is not ready for tapping. • 2 Solid white: The fingerprint reader is ready for tapping. • 3 Amber, blinking: The fingerprint cannot be authenticated. 5 Caps Lock indicator When this indicator is on, you can type uppercase letters by directly pressing the letter keys. 6 Microphone-mute indicator When this indicator is on, the microphones are muted. 7 Fn Lock indicator This indicator shows the status of Fn Lock function. For more information, see Chapter 6 “Using the special keys” on page 47. 8 Speaker-mute indicator When this indicator is on, the speakers are muted. Chapter 7. Locations 53 9 Wireless-status indicator When this indicator is on, you can connect the computer to a wireless network or wireless device. 10 Device-access-status indicator When this indicator is blinking, the storage device of your computer is reading or writing data. During this period, do not put the computer into sleep mode, remove the storage device, or turn off the computer. 11 ac power status indicator This indicator shows the ac power and battery power status of the computer. • White: connected to ac power (battery power 90%–100%) • Amber: connected to ac power (battery power 0%–90%) • Off: not connected to ac power Locating FRUs and CRUs This topic introduces the following service parts: • “Major FRUs” on page 55 • “LCD FRUs” on page 57 • “Miscellaneous parts” on page 60 Notes: • CRU statement for customers: You can resolve some problems with your product with a replacement part you can install yourself, called a “Customer Replaceable Unit” or “CRU.” Installation of self-service CRUs is your responsibility. If you intend on installing the 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:// support.lenovo.com. Click Guides & Manuals 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 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 details. • • • • 54 ThinkPad computers contain the following types of CRUs: – Self-service CRUs: Refer to parts that can be installed or replaced easily by customer themselves or by trained service technicians at an additional cost. – Optional-service CRUs: Refer to parts that can be installed or replaced by customers with a greater skill level. Trained service technicians can also provide service to install or replace the parts under the type of warranty designated for the customer’s machine. FRUs: Refer to parts that must be installed or replaced only by trained service technicians. If customers choose to replace the FRUs by themselves, the product warranty might be affected. Each FRU/CRU is available for all types or models, unless otherwise specified. A Self-service CRU is identified by a single asterisk (*) in the CRU ID column. An Optional-service CRU is identified by two asterisks (**). An N in the CRU ID column means that the part is not a CRU. FRUs marked with OP are available as options. ThinkPad P52 Hardware Maintenance Manual Major FRUs Chapter 7. Locations 55 Table 5. Major FRUs No. FRU descriptions CRU ID 1 LCD unit (see “LCD FRUs” on page 57) N 2 Keyboard ** 3 Keyboard bezel assembly N 4 Memory module bracket ** 5 Fingerprint reader cable N 6 Memory module under the keyboard ** 7 Speaker assembly N 8 Wireless WAN card * ** 9 Wireless LAN card ** 10 Chassis assembly N 11 Thermal fan assembly N 12 System board N 13 Memory module under the bottom cover * 14 Base cover assembly N a Lenovo factory recovery USB key * N b Miscellaneous parts (see “Miscellaneous parts” on page 60) N c Power cord * d ac power adapter * 15 Bottom cover * 16 Battery * 17 Hard disk drive * 18 M.2 solid-state drive * 19 Coin-cell battery * 20 Trackpad buttons and cable N 21 Trackpad cable N * 22 Smart-card reader and cable 23 Dummy smart-card reader * N 24 NFC cable * N 25 Hinge caps N 26 Nano-SIM card * * 27 TrackPoint pointing stick * N Notes: • Depending on the model, the FRU marked with asterisk (*) might not be available on your computer. 56 ThinkPad P52 Hardware Maintenance Manual • The Lenovo factory recovery USB key a 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/ lenovorecovery, though additional shipping and handling fees might apply. LCD FRUs For models without touch function: Chapter 7. Locations 57 Table 6. LCD FRUs No. FRU descriptions CRU ID 1 LCD bezel assembly N 2 Bezel support rubber * N 3 Camera card or microphone card N 4 LCD panel N 5 LCD cable N 6 Antenna kit N 7 Hinge assembly N 8 Hinges caps N 9 LED camera cable assembly N 10 LED card N 11 LCD rear cover assembly N Note: Depending on the model, the FRU marked with asterisk (*) might not be available on your computer. For models with touch function: 58 ThinkPad P52 Hardware Maintenance Manual Table 7. LCD FRUs No. FRU descriptions CRU ID 1 LCD strip bezel N 2 LCD panel assembly N 3 Camera card or microphone card N 4 LCD cable N 5 Antenna kit N 6 Hinge caps N 7 Hinge assembly N Chapter 7. Locations 59 Table 7. LCD FRUs (continued) No. FRU descriptions CRU ID 8 LED card N 9 Touch control board N 10 LED camera cable assembly N 11 LCD rear cover assembly N Miscellaneous parts Table 8. Miscellaneous parts FRU descriptions CRU ID Screw kit • M M 2.0D 2L K 4.5D 0.8T ZK NL, black (4) • M2 × 3, black (24) • M2 × 4.5, black (2) • M2 × 12.0, black (8) • M M M2.5*4.0L K 4.5D 0.5T NI NL +, silver (17) • M2.5 × 5, black (8) • M2.5 × 8, black (4) • M2 x 4, black (6) N System kit • Gasket for the fingerprint reader • Mylar for screw • Mylar for fingerprint reader • Speaker rubbers • Rubber for dc-in lens • Computer Aided Manufacturing (CAM) diffusion film N Wireless WAN card miscellaneous kit N Wireless LAN card miscellaneous kit N Miscellaneous kit • Rubber for chassis • Speaker rubber • Camera diffusion film • Sponge for hard disk drive • Rubber for dc-in lens N Label kit N 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. Note: Depending on your model, some connectors or cables might not be available. 60 ThinkPad P52 Hardware Maintenance Manual System board N o. Connector/feature Internal cable required Cable connection 1 USB-C connector (Thunderbolt™ 3 compatible) (external) No Connect a compatible device to this connector. 2 USB-C connector (Thunderbolt™ 3 compatible) (external) No Connect a compatible device to this connector. 3 HDMI connector (external) No Connect a compatible digital audio device or video monitor to this connector. 4 Ethernet connector (external) No Connect the computer to a LAN through this connector. 5 Thermal fan assembly connector (internal) Thermal fan assembly cable The thermal fan assembly comes with cable. Connect the cable to this connector. 6 Power-button-card connector (internal) Power-button-card cable The power button card comes with cable. Connect the power-button-card cable to this connector. 7 Mini DisplayPort connector (external) No Connect a compatible projector, external monitor, or high-definition television to this connector. 8 USB 3.1 connectors Gen 1 (external) No Connect USB-compatible devices to this connector. 9 USB 3.1 connectors Gen 1 (external) No Connect USB-compatible devices to this connector. 10 Audio connector (external) No Connect headphones or a headset with 3.5mm (0.14-inch) 4-pole plug to this connector. Chapter 7. Locations 61 No. Connector/feature Internal cable required Cable connection 11 Wireless-LAN card (internal) No Insert the wireless-LAN/WiGig card into this slot. 12 LED and camera connector (internal) LED camera cable assembly For non-touch models, the LED camera cable assembly has three ends. Connect the camera end to the camera card, the LED end to the LED card, and the MB end to this connector. For touch models, the LED camera cable assembly has four ends. Connect the camera end to the camera card, the LED end to the LED card, the LCD touch cable end to the LCD touch controller card (a part of the LCD panel assembly), and the MB end to this connector. 13 Wireless-WAN card slot (internal) No Insert the wireless-WAN card into this slot. 14 Memory module slot (internal) No Insert the memory module into this slot. 15 Battery connector (internal) No Insert the battery directly to this connector. 16 NFC module connector NFC module cable Connect one end to the NFC module and the other end to this connector. 17 Fingerprint reader connector (internal) Fingerprint reader cable Connect one end to the fingerprint reader card and the other end to this connector. 18 Trackpad connector (internal) Trackpad cable Connect one end to the trackpad and the other end to this connector. 19 Speaker connector (internal) Speaker assembly cable The speaker assembly comes with cable. Connect the cable to this connector. 20 Thermal fan assembly connector (internal) Thermal fan assembly cable The thermal fan assembly comes with cable. Connect the cable to this connector. 21 TrackPoint connector (internal) Keyboard assembly with cable The keyboard assembly comes with cable. Connect theTrackPoint cable to this connector and the other cable to the keyboard connector. 22 Smart-card connector (internal) Smart card cable Connect one end to the smart card reader and the other end to this connector. 23 SD card slot No Insert the SD card into this slot. 24 Always On USB 3.1 connector Gen 1 No Connect USB-compatible devices to this connector. 25 Keyboard connector (internal) Keyboard assembly with cable The keyboard assembly comes with cable. Connect the keyboard cable to this connector, and connect the other cable to the TrackPoint connector. 26 LCD connector (internal) LCD cable Connect one end to the LCD panel and the other end to this connector. 27 Memory module slots (internal) No Insert the memory module into this slot. 28 ac power LED connector (internal) ac power LED connector cable Connect the ac power status indicator connector to this connector 29 dc-in connector (internal) dc-in connector cable Connect the dc-in connector cable to this connector. 62 ThinkPad P52 Hardware Maintenance Manual No. Connector/feature Internal cable required Cable connection 30 Solid-state drive slot (internal) No Insert the solid-state drive directly into this slot. 31 Solid-state drive slot (internal) No Insert the solid-state drive directly into this slot. 32 Coin-cell battery connector (internal) Coin-cell battery cable The coin-cell battery comes with cable. Connect the cable to this connector. 33 HDD cable connector (internal) HDD cable Connect the HDD cable to this connector. 34 Nano-SIM-card slot (internal) No If the computer supports wireless WAN, insert a nano-SIM card into this slot to establish wireless-WAN connection. Keyboard bezel assembly No. Connector/feature Internal cable required Cable connection 1 Fingerprint reader connector Fingerprint reader cable Connect one end to the fingerprint reader connector on the system board and the other end to this connector. 2 NFC antenna connector (internal) NFC antenna kit The trackpad comes with an NFC antenna kit. Connect the antenna to this connector. 3 NFC connector (internal) NFC cable Connect one end to the NFC connector on the system board and the other end to this connector. 4 Trackpad connector Trackpad cable Connect one end to the trackpad connector on the system board and the other end to this connector. 5 Trackpad button connector Trackpad button cable The trackpad buttons comes with a trackpad button cable. Connect the cable to this connector. Conventional camera/microphone card connector and cable Chapter 7. Locations 63 Table 9. Conventional camera/microphone card connector and cable guide Item 1 Connector (location) Conventional camera/microphone card connector (internal) Internal cable required Camera/LED cable assembly Cable connection Connect one end to the LED connector on the system board and the other end to this connector. IR camera/microphone card connector and cable Table 10. IR camera/microphone card connector and cable guide Item 1 Connector (location) Internal cable required IR camera/microphone card connector (internal) Camera/LED cable assembly Cable connection Connect one end to the LED connector on the system board and the other end to this connector. Looking up FRU information For detailed FRU information, including part numbers, descriptions, and substitution part numbers, go to: https://support.lenovo.com/partslookup 64 ThinkPad P52 Hardware Maintenance Manual Chapter 8. FRU replacement notices This chapter presents notices related to removing and replacing parts. Read this chapter carefully before replacing any FRU. CRU statement for customers: You can resolve some problems with your product with a replacement part you can install yourself, called a “Customer Replaceable Unit” or “CRU.” Some CRUs are designated as self-service CRUs and others are designated as optional-service CRUs. Installation of self-service CRUs is your responsibility. For optionalservice CRUs, you can either install the CRU yourself or you can request that a Service Provider install the CRU according to the warranty service for your product. If you intend on installing the 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://support.lenovo.com. 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 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 details. Screw notices Loose screws can cause a reliability problem. In the ThinkPad notebook computer, this problem is addressed with special nylon-coated screws that have the following characteristics: • They maintain tight connections. • They do not easily come loose, even with shock or vibration. • They are harder to tighten. Do the following when you service this machine: • Keep the screw kit in your tool bag. For the part number of the screw kit, go to https://support.lenovo.com/ partslookup. • It is recommended to use new screws. • It is recommended to use each screw only once. Tighten screws as follows: • Plastic to plastic Turn an additional 90 degrees after the screw head touches the surface of the plastic part. • Logic card to plastic Turn an additional 180 degrees after the screw head touches the surface of the logic card. © Copyright Lenovo 2018 65 Notes: • Ensure that you use the correct screw. It is recommended to use new screws for replacements. If you have a torque screwdriver, 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 66 • “Retaining the UUID” on page 67 Restoring the serial number of the system unit When the computer was manufactured, the EEPROM on the system board was loaded with the serial numbers of the system and all major components. These numbers need to remain the same throughout the life of the computer. If you replace the system board, you must restore the serial number of the system unit to its original value. The serial number of the system unit is written on the label attached to the bottom of the computer. If you can not find the serial number of the system unit on the bottom of the computer, try the following method to get the number: Note: Before you perform the operation, ensure that the UEFI/Legacy setting within the Startup menu in the ThinkPad Setup program is set to UEFI Only. 1. Connect a USB memory key to the computer. 2. Go to https://www.lenovo.com/maintenanceutilities and follow the instructions on the screen to create a 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. 5. Type 1 under Enter the action desired, then press Enter. The ThinkPad Serial Number Update Utility for Asset ID screen is displayed. 6. Type 2 under Enter the action desired, then press Enter. The serial number of each device in your computer is displayed; the serial number of the system unit is listed as follow: 20- Serial number 7. Record the serial number of the system unit. After you replace the system board, do the following to restore the serial number of the system unit: 1. Connect the Maintenance Key to the computer. 66 ThinkPad P52 Hardware Maintenance Manual 2. When the logo is displayed, press Esc. The ThinkPad Config Information Update Utility 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 assigned to your computer at production and stored in the EEPROM of your system board. The algorithm that generates the number is designed to provide unique IDs until the year A.D. 3400. No two computers in the world have the same number. When you replace the system board, perform the following steps to create a new UUID for the system board if the system board does not have a UUID: Note: Before you perform the operation, ensure that the UEFI/Legacy setting within the Startup menu in the ThinkPad Setup program is set to UEFI Only. 1. Connect a USB memory key to the computer. 2. Go to https://www.lenovo.com/maintenanceutilities and follow the instructions on the screen to create a Maintenance Key. Note: Only an authorized Lenovo service technician can access the above Web site. 3. Restart the computer. 4. When the logo screen is displayed, press Esc. The ThinkPad Config Information Update Utility interface is displayed. 5. Type 2 under Enter the action desired, then press Enter. The Auto UUID generation utility interface is displayed. 6. Type y under Change UUID. OK? [Y/N], then press Enter. A new UUID is created and written. If a valid UUID already exists, it is not overwritten. Reading or writing the ECA information Information on Engineering Change Announcements (ECA) is stored in the EEPROM of the system board. The electronic storage of this information simplifies the procedure to check if the ECA has been previously applied to a machine. The machine does not need to be disassembled to check for the ECA application. 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. 2. From the main menu, select 6. Set ECA Information. 3. To read the ECA information, select 2. Read ECA/rework number from EEPROM and follow the instructions on the screen; To read box build date, select 5. Read box build date from EEPROM, and follow the instructions 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 latest version of LENOVO ThinkPad Hardware Maintenance Diskette or 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 the machine that had the ECA applied to it. Chapter 8. FRU replacement notices 67 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; To write box build date, select 4. Write box build date from EEPROM, and follow the instruction on the screen. If the system board is being replaced, try to read the ECA information from the old system board and transfer the information to the new system. If the system board is inoperable, this will not be possible. 68 ThinkPad P52 Hardware Maintenance Manual Chapter 9. Removing or replacing a FRU This chapter provides instructions on how to remove or replace a FRU. CRU statement for customers: You can resolve some problems with your product with a replacement part you can install yourself, called a “Customer Replaceable Unit” or “CRU.” Some CRUs are designated as self-service CRUs and others are designated as optional-service CRUs. Installation of self-service CRUs is your responsibility. For optionalservice CRUs, you can either install the CRU yourself or you can request that a Service Provider install the CRU according to the warranty service for your product. If you intend on installing the 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 is available for downloading at https:// support.lenovo.com. Follow the on-screen instructions to find the manual for your product. You might be required to return the defective 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 part within thirty (30) days of your receipt of the replacement 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 8 “FRU replacement notices” on page 65. 3. Begin by removing any FRUs that have to be removed before replacing the failing FRU. Any such FRUs are listed at the beginning of each FRU replacement section. Remove them in the order in which they are listed. 4. Follow the correct sequence in the steps for removing a FRU, as given in the illustrations by the numbers in square callouts. 5. When turning a screw, turn it in the direction as given by the arrow in the illustration. 6. When removing a FRU, move it in the direction as given by the arrow in the illustration. 7. To put the new FRU in place, reverse the removal procedure and follow any notes that pertain to replacement. 8. When replacing a FRU, use the correct screws as shown in the replacement procedures. DANGER Before removing any FRU, turn off the computer, unplug all power cords from electrical outlets, remove the battery pack, and then disconnect any interconnecting cables. Attention: • After replacing a FRU, do not turn on the computer until you have made sure that all screws, springs, and other small parts are in place and none are loose inside the computer. Verify this by shaking the computer gently and listening for rattling sounds. Metallic parts or metal flakes can cause electrical short circuits. © Copyright Lenovo 2018 69 • The system board is sensitive to, and can be damaged by, electrostatic discharge (ESD). Before touching it, establish personal grounding by touching a ground point with one hand or by using an electrostatic discharge strap. Common service tools Below is the list of common service tools that you might need while servicing the computer. • Torx #T8 • Flat-head screwdriver size #2.5mm • Phillips screwdriver head size #0 • Phillips screwdriver head size #1 • Hex nut driver size #5mm • Menda Nylon Probe #35622 Before servicing the computer Carefully read this topic before servicing the computer. Removing the nano-SIM card For access, remove this FRU: • “1010 Battery” on page 71 If the computer has a nano-SIM card installed, you must remove the nano-SIM card before you start the servicing. After you finish the servicing, ensure that you install the nano-SIM card back into the slot firmly. Removing a major FRU This section provides instructions on how to remove a major FRU. 70 ThinkPad P52 Hardware Maintenance Manual 1010 Battery 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. Any other battery could ignite or explode. 1020 Bottom cover For access, remove this FRU: • “1010 Battery” on page 71 Removal steps of the bottom door Note: Loosen the screws 1 . Chapter 9. Removing or replacing a FRU 71 1030 Storage drive For access, remove these FRUs: • “1010 Battery” on page 71 • “1020 Bottom cover” on page 71 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. Removal steps of the 2.5-inch storage drive and drive cable 72 ThinkPad P52 Hardware Maintenance Manual Removal steps of the M.2 solid-state drive Step Screw (quantity) Color Torque 1 M2 × 3 mm, flat-head, nylon-coated (1) Black 0.181 Nm (1.85 kgf-cm) 1040 Memory module under the bottom cover For access, remove these FRUs: • “1010 Battery” on page 71 • “1020 Bottom cover” on page 71 Chapter 9. Removing or replacing a FRU 73 Removal steps of the memory module under the bottom cover 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. 1050 Coin-cell battery For access, remove these FRUs: • “1010 Battery” on page 71 • “1020 Bottom cover” on page 71 DANGER Use only the authorized battery specified for your computer. Any other battery could ignite or explode. 74 ThinkPad P52 Hardware Maintenance Manual Removal steps of the coin-cell battery When installing: Ensure that the coin-cell battery connector is attached firmly. 1060 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. Chapter 9. Removing or replacing a FRU 75 Removal steps of the keyboard 1. Take the tool out of the new keyboard package. Insert the tabs a and b into the slot between the TrackPoint buttons and the trackpad 1 . Slightly pivot the tool downward 2 to release the left and right TrackPoint buttons. Then remove the two TrackPoint buttons 3 . 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.com/partslookup. a b 2. Loosen the screws that secure the keyboard 4 . 76 Step Screw (quantity) Color Torque 4 M2 × 1.65 mm, flat-head, nylon-coated (2) Silver 0.143 Nm (1.4 kgf-cm) ThinkPad P52 Hardware Maintenance Manual 3. Insert the tabs c and d into the two dents near the two screw heads as shown 5 . c d 4. Pivot the tool in the direction as shown to release the keyboard 6 . Push the keyboard in the direction as shown by arrows 7 to release the latches from the keyboard bezel. FnLo ck F6 um N Lo ck 5. Pivot the keyboard slightly upward as shown by arrow 8 . Then turn the keyboard over as shown by arrow 9 . FnLo ck F6 Nu mL ock Chapter 9. Removing or replacing a FRU 77 6. Put the keyboard on the palm rest as shown and detach the connectors. Then remove the keyboard. When installing: 1. Attach the connectors and turn the keyboard over as shown. 78 ThinkPad P52 Hardware Maintenance Manual 2. Insert the keyboard into the keyboard bezel as shown. Ensure that the front edge of the keyboard (the edge that is close to the display) is under the keyboard bezel. Fn Lo ck ck Lo Fn F6 F6 k oc FnL F6 ck Lo um N 3. Slide the keyboard in the direction as shown by the arrows. Ensure that the latches are secured under the keyboard frame. FnLo ck F6 um N ck Lo Chapter 9. Removing or replacing a FRU 79 4. Tighten the screws to secure the keyboard. 5. Take the new TrackPoint buttons out of the new keyboard package. Install the TrackPoint buttons as shown. F6 ck Lo um N SD 6. Connect the ac power adapter and all cables to the computer. 1070 Memory module bracket and memory module under the keyboard For access, remove these FRUs: • “1060 Keyboard” on page 75 80 ThinkPad P52 Hardware Maintenance Manual Removal steps of the memory module bracket and memory module under the keyboard Step Screw (quantity) Color Torque 1 M2 × 3 mm, flat-head, nylon-coated (1) Black 0.181 Nm (1.85 kgf-cm) 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. Chapter 9. Removing or replacing a FRU 81 1080 Wireless LAN card For access, remove these FRUs: • “1060 Keyboard” on page 75 Removal steps of the wireless LAN card Step Screw (quantity) Color Torque 1 M2 × 3 mm, flat-head, nylon-coated (1) Black 0.181 Nm (1.85 kgf-cm) When installing: Plug the gray cable into the main connector on the card; and plug the black cable into the auxiliary connector on the card. 1090 Wireless WAN card For access, remove these FRUs: • “1060 Keyboard” on page 75 82 ThinkPad P52 Hardware Maintenance Manual Removal steps of the wireless WAN card Step Screw (quantity) Color Torque 2 M2 × 3 mm, flat-head, nylon-coated (1) Black 0.181 Nm (1.85 kgf-cm) When installing: Plug the orange cable into the main connector on the card; and plug the blue cable into the auxiliary connector on the card. 1100 Keyboard bezel assembly For access, remove these FRUs: • “1010 Battery” on page 71 • “1020 Bottom cover” on page 71 • “1030 Storage drive” on page 72 • “1060 Keyboard” on page 75 Removal steps of the keyboard bezel assembly Chapter 9. Removing or replacing a FRU 83 Step Screw (quantity) Color Torque 1 M2.5 × 5 mm, flat-head, nylon-coated (3) Black 0.294 Nm (3.0 kgf-cm) 2 M2.5 × 4 mm, flat-head, nylon-coated (5) Silver 0.294 Nm (3.0 kgf-cm) When installing: Ensure that all the latches are well assembled and there is no abnormal gap. 1110 NFC cable, fingerprint reader cable, trackpad cable, trackpad buttons, and power button cable For access, remove these FRUs in order: 84 ThinkPad P52 Hardware Maintenance Manual • • • • • “1010 Battery” on page 71 “1020 Bottom cover” on page 71 “1030 Storage drive” on page 72 “1060 Keyboard” on page 75 “1100 Keyboard bezel assembly” on page 83 Removal steps of the NFC cable When installing: Ensure that the connector is attached firmly. Removal steps of the fingerprint reader cable When installing: Ensure that the connector is attached firmly. Chapter 9. Removing or replacing a FRU 85 Removal steps of the trackpad cable 11 When installing: Ensure that the connector is attached firmly. Removal steps of the trackpad button Step Screw (quantity) Color Torque 3 M2 × 3 mm, flat-head, nylon-coated (1) Black 0.181 Nm (1.85 kgf-cm) 86 ThinkPad P52 Hardware Maintenance Manual Removal steps of the power button cable Step Screw (quantity) Color Torque 1 M2 × 3 mm, flat-head, nylon-coated (1) Black 0.181 Nm (1.85 kgf-cm) 1120 Hinge caps For access, remove these FRUs: • “1010 Battery” on page 71 • “1020 Bottom cover” on page 71 • “1030 Storage drive” on page 72 • “1060 Keyboard” on page 75 • “1100 Keyboard bezel assembly” on page 83 Removal steps of the hinge caps Chapter 9. Removing or replacing a FRU 87 Step Screw (quantity) Color Torque 1 M2 × 3 mm, flat-head, nylon-coated (2) Black 0.181 Nm (1.85 kgf-cm) When installing: Open the LCD to 180 degrees from the relative position of the keyboard. 1130 LCD unit For access, remove these FRUs: • “1010 Battery” on page 71 • “1020 Bottom cover” on page 71 • “1030 Storage drive” on page 72 • “1060 Keyboard” on page 75 • “1080 Wireless LAN card” on page 82 • “1090 Wireless WAN card” on page 82 • “1100 Keyboard bezel assembly” on page 83 • “1120 Hinge caps” on page 87 Removal steps of the LCD unit Step Screw (quantity) Color Torque 2 M2.5 × 8 mm, flat-head, nylon-coated (4) Black 0.294 Nm (3.0 kgf-cm) 3 M2.5 × 5 mm, flat-head, nylon-coated (2) Black 0.294 Nm (3.0 kgf-cm) 88 ThinkPad P52 Hardware Maintenance Manual Step Screw (quantity) Color Torque 4 M2 × 12 mm, flat-head, nylon-coated (2) Black 0.181 Nm (1.85 kgf-cm) Chapter 9. Removing or replacing a FRU 89 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. 90 ThinkPad P52 Hardware Maintenance Manual 1140 Chassis assembly For access, remove these FRUs in order: • “1010 Battery” on page 71 • “1020 Bottom cover” on page 71 • “1030 Storage drive” on page 72 • “1060 Keyboard” on page 75 • “1100 Keyboard bezel assembly” on page 83 • “1120 Hinge caps” on page 87 • “1130 LCD unit” on page 88 Removal steps of the chassis assembly Step Screw (quantity) Color Torque 1 M2.5 × 5 mm, flat-head, nylon-coated (3) Black 0.294 Nm (3.0 kgf-cm) 2 M2 × 12 mm, flat-head, nylon-coated (3) Black 0.181 Nm (1.85 kgf-cm) Chapter 9. Removing or replacing a FRU 91 Step Screw (quantity) Color Torque 3 M2 × 12 mm, flat-head, nylon-coated (3) Black 0.181 Nm (1.85 kgf-cm) 92 ThinkPad P52 Hardware Maintenance Manual 1150 Smart card reader, smart card reader cable, or dummy smart card For access, remove these FRUs: • “1010 Battery” on page 71 • “1020 Bottom cover” on page 71 • “1030 Storage drive” on page 72 • “1060 Keyboard” on page 75 • “1100 Keyboard bezel assembly” on page 83 • “1120 Hinge caps” on page 87 • “1130 LCD unit” on page 88 • “1140 Chassis assembly ” on page 91 Removal steps of the smart card reader and smart card reader cable When installing: Ensure that the connector is attached firmly. Step Screw (quantity) Color Torque 3 M2 × 3 mm, flat-head, nylon-coated (2) Black 0.181 Nm (1.85 kgf-cm) Chapter 9. Removing or replacing a FRU 93 Removal steps of the dummy smart card reader If the computer you are servicing has a dummy smart card reader installed. Follow the following instructions to remove or replace the dummy smart card reader. Step Screw (quantity) Color Torque 1 M2 × 3 mm, flat-head, nylon-coated (2) Black 0.181 Nm (1.85 kgf-cm) 1160 Speaker assembly For access, remove these FRUs: • “1010 Battery” on page 71 • “1020 Bottom cover” on page 71 • “1030 Storage drive” on page 72 • “1060 Keyboard” on page 75 • “1100 Keyboard bezel assembly” on page 83 • “1120 Hinge caps” on page 87 • “1130 LCD unit” on page 88 • “1140 Chassis assembly ” on page 91 Removal steps of the speaker assembly 94 ThinkPad P52 Hardware Maintenance Manual Step Screw (quantity) Color Torque 1 M2 × 4.5 mm +2.3L, flat-head, nylon-coated (2) Black 0.181 Nm (1.85 kgf-cm) 1170 Thermal fan assembly For access, remove these FRUs: • “1010 Battery” on page 71 • “1020 Bottom cover” on page 71 • “1030 Storage drive” on page 72 • “1060 Keyboard” on page 75 • “1100 Keyboard bezel assembly” on page 83 • “1120 Hinge caps” on page 87 • “1130 LCD unit” on page 88 • “1140 Chassis assembly ” on page 91 Removal steps of the thermal fan assembly Detach the thermal fan assembly connector 1 . Loosen the screws 2 in ascending alphabetical order (2a to 2h) as illustrated, and then remove the thermal fan assembly 3 . Chapter 9. Removing or replacing a FRU 95 2f 2g 2h 2e When installing: • Do not touch the areas marked a and b in the following illustrations. • Ensure that the fan connector is attached firmly. • Each screw is marked with a number on the thermal fan assembly. When installing, follow the screw number to tighten the screws in ascending numerical order; otherwise, the system board assembly might be damaged. • If you want to re-use the old thermal fan assembly, remove the thermal grease first, and then apply new thermal grease to the thermal fan assembly, at an amount of 0.2 grams, before you attach it to the system board. Either too much or too less application of grease can cause a thermal problem due to imperfect contact with a component. 1180 System board 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. 96 ThinkPad P52 Hardware Maintenance Manual Note: Dropping a system board from a height of as little as 6 inches so that it falls flat on a hard bench can subject the accelerometer to as much as 6000 G's of shock. • Be careful not to drop the system board on a bench top that has a hard surface, such as metal, wood, or composite. • Avoid rough handling of any kind. • At every point in the process, be sure not to drop or stack the system board. • If you put a system board down, be sure to put it only on a padded surface such as an ESD mat or a corrugated conductive material. For access, remove these FRUs in order: • “1010 Battery” on page 71 • “1020 Bottom cover” on page 71 • “1030 Storage drive” on page 72 • “1060 Keyboard” on page 75 • “1080 Wireless LAN card” on page 82 • “1090 Wireless WAN card” on page 82 • “1100 Keyboard bezel assembly” on page 83 • “1120 Hinge caps” on page 87 • “1130 LCD unit” on page 88 • “1140 Chassis assembly ” on page 91 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. a b c d Graphic Processing Unit (GPU) Central Processing Unit (CPU) Platform Controller Hub (PCH) Accelerometer chip for the hard disk drive Active Protection System® (APS) Chapter 9. Removing or replacing a FRU 97 Removal steps of the system board When installing: Ensure that the connector is attached firmly. Step Screw (quantity) Color Torque 2 M2 × 3 mm, flat-head, nylon-coated (1) Black 0.181 Nm (1.85 kgf-cm) When installing: Ensure to reinstall the rubber as shown. 1190 dc-in bracket, dc-in cable assembly, and base cover assembly The base cover assembly will stand out after you remove these FRUs in order: • “1010 Battery” on page 71 • “1020 Bottom cover” on page 71 • “1030 Storage drive” on page 72 • “1060 Keyboard” on page 75 • “1080 Wireless LAN card” on page 82 • “1090 Wireless WAN card” on page 82 • “1100 Keyboard bezel assembly” on page 83 • “1120 Hinge caps” on page 87 • “1130 LCD unit” on page 88 • “1140 Chassis assembly ” on page 91 98 ThinkPad P52 Hardware Maintenance Manual • • “1170 Thermal fan assembly” on page 95 “1180 System board” on page 96 Removal steps of the dc-in bracket, dc-in cable assembly, and base cover assembly Step Screw (quantity) Color Torque 1 M2 × 3 mm, flat-head, nylon-coated (1) Black 0.181 Nm (1.85 kgf-cm) Label locations on the base cover assembly The following illustration shows the location of each label. 1 Genuine Microsoft label (GML) 2 Wireless label for special-bid products 3 Asset tag label 4 Country label Chapter 9. Removing or replacing a FRU 99 5 System label 6 Information label 7 MCMC label 8 IMEI label 9 GEO label 10 FCC-WLAN label 11 Taiwan warning label 12 S/N label Removing an LCD FRU for non-touch models This section provides instructions on how to remove an LCD FRU for models without touch feature. 2010 LCD bezel assembly For access, remove this FRU: • “1010 Battery” on page 71 Removal steps of the LCD bezel assembly When installing: Ensure that all the latches are attached firmly. 2020 Bezel support rubber If your computer model does not have a camera, there might be a bezel support rubber attached. For access, remove these FRUs in order: • “1010 Battery” on page 71 • “1020 Bottom cover” on page 71 • “1130 LCD unit” on page 88 • “2010 LCD bezel assembly” on page 100 100 ThinkPad P52 Hardware Maintenance Manual Removal steps of the bezel support rubber 2030 LED card For access, remove these FRUs in order: • “1010 Battery” on page 71 • “1020 Bottom cover” on page 71 • “1130 LCD unit” on page 88 • “2010 LCD bezel assembly” on page 100 Removal steps of the LED card 2040 LCD panel, LCD cable, and hinge assembly For access, remove these FRUs in order: • “1010 Battery” on page 71 Chapter 9. Removing or replacing a FRU 101 • • • • “1020 Bottom cover” on page 71 “1130 LCD unit” on page 88 “2010 LCD bezel assembly” on page 100 “2030 LED card” on page 101 Removal steps of the LCD panel and the LCD cable When installing: Ensure that the LCD connector is attached firmly. Removal steps of the hinge assembly 102 ThinkPad P52 Hardware Maintenance Manual Step Screw (quantity) Color Torque 1 M2.5 × 4 mm, flat-head, nylon-coated (6) Silver 0.294 Nm (3.0 kgf-cm) 2 M2 × 3 mm, flat-head, nylon-coated (4) Silver 0.181 Nm (1.85 kgf-cm) 2050 Camera card and LED camera cable assembly For access, remove these FRUs: • “1010 Battery” on page 71 • “1020 Bottom cover” on page 71 • “1130 LCD unit” on page 88 • “2010 LCD bezel assembly” on page 100 • “2030 LED card” on page 101 • “2040 LCD panel, LCD cable, and hinge assembly” on page 101 Removal steps of the camera card Chapter 9. Removing or replacing a FRU 103 Removal steps of the LED camera cable assembly When installing: Ensure that the connectors are attached firmly. 2060 Antenna kit and LCD rear cover assembly For access, remove these FRUs in order: • “1010 Battery” on page 71 • “1020 Bottom cover” on page 71 • “1130 LCD unit” on page 88 • “2010 LCD bezel assembly” on page 100 104 ThinkPad P52 Hardware Maintenance Manual • • • “2030 LED card” on page 101 “2040 LCD panel, LCD cable, and hinge assembly” on page 101 “2050 Camera card and LED camera cable assembly” on page 103 Removal steps of the antenna kit and LCD rear cover assembly Cable routing: When you install the antenna kit, route the cables as shown in the following illustration. Chapter 9. Removing or replacing a FRU 105 a Wireless LAN auxiliary antenna (black) b Wireless WAN auxiliary antenna (blue) c Wireless WAN main antenna (orange) d Wireless LAN main antenna (grey) 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. Removing an LCD FRU for touch models This section provides instructions on how to remove an LCD FRU for models with touch feature. 3010 LCD strip bezel For access, remove this FRU: • “1010 Battery” on page 71 Removal steps of the LCD strip bezel When installing: 106 ThinkPad P52 Hardware Maintenance Manual Ensure that all the latches are attached firmly. 3020 LED card For access, remove these FRUs in order: • “1010 Battery” on page 71 • “3010 LCD strip bezel” on page 106 Removal steps of the LED card 3030 LCD panel assembly, LCD cable, and hinge assembly For access, remove these FRUs in order: • “1010 Battery” on page 71 • “1020 Bottom cover” on page 71 • “1130 LCD unit” on page 88 • “3010 LCD strip bezel” on page 106 • “3020 LED card” on page 107 Removal steps of the LCD panel assembly Step Screw (quantity) Color Torque 1 M2.5 × 4 mm, flat-head, nylon-coated (2) Silver 0.294 Nm (3.0 kgf-cm) Chapter 9. Removing or replacing a FRU 107 When installing: Ensure that the LCD connector is attached firmly. Removal steps of the LCD cable 108 ThinkPad P52 Hardware Maintenance Manual Removal steps of the hinge assembly Step Screw (quantity) Color Torque 2 M2.5 × 4 mm, flat-head, nylon-coated (4) Silver 0.294 Nm (3.0 kgf-cm) 3 M2 × 3 mm, flat-head, nylon-coated (2) Silver 0.181 Nm (1.85 kgf-cm) 3040 Camera card and LED camera cable assembly For access, remove these FRUs: • “1010 Battery” on page 71 • “1020 Bottom cover” on page 71 • “1130 LCD unit” on page 88 • “3010 LCD strip bezel” on page 106 • “3020 LED card” on page 107 Chapter 9. Removing or replacing a FRU 109 • “3030 LCD panel assembly, LCD cable, and hinge assembly” on page 107 Removal steps of the camera card Removal steps of the LED camera cable assembly 110 ThinkPad P52 Hardware Maintenance Manual When installing: Ensure that the connectors are attached firmly. 3050 Antenna kit and LCD rear cover assembly For access, remove these FRUs in order: • “1010 Battery” on page 71 • “1020 Bottom cover” on page 71 • “1130 LCD unit” on page 88 • “3010 LCD strip bezel” on page 106 • “3020 LED card” on page 107 • “3030 LCD panel assembly, LCD cable, and hinge assembly” on page 107 • “3040 Camera card and LED camera cable assembly” on page 109 Chapter 9. Removing or replacing a FRU 111 Removal steps of the antenna kit and LCD rear cover assembly Cable routing: When you install the antenna kit, route the cables as shown in the following illustration. 112 ThinkPad P52 Hardware Maintenance Manual a Wireless LAN auxiliary antenna (black) b Wireless WAN auxiliary antenna (blue) c Wireless WAN main antenna (orange) d Wireless LAN main antenna (grey) Attention: As you route the cables, ensure that they are not subject to any tension. Tension could cause the cables to be damaged by the cable guides, or a wire to be broken. Chapter 9. Removing or replacing a FRU 113 114 ThinkPad P52 Hardware Maintenance Manual Appendix A. Notices Lenovo may not offer the products, services, or features discussed in this document in all countries. Consult your local 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. However, it is the user’s responsibility to evaluate and verify the operation of any other product, program, or service. Lenovo may have patents or pending patent applications covering subject matter described in this document. The furnishing of this document does not give you any license to these patents. You can send license inquiries, in writing, to: Lenovo (United States), Inc. 1009 Think Place - Building One Morrisville, NC 27560 U.S.A. Attention: Lenovo Director of Licensing LENOVO PROVIDES THIS PUBLICATION “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some jurisdictions do not allow disclaimer of express or implied warranties in certain transactions, therefore, this statement may not apply to you. This information could include technical inaccuracies or typographical errors. Changes are periodically made to the information herein; these changes will be incorporated in new editions of the 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 Lenovo product specifications or warranties. Nothing in this document shall operate as an express or implied license or indemnity under the intellectual property rights of Lenovo or third parties. All information contained in this document was obtained in specific environments and is presented as an illustration. The result obtained in other operating environments may vary. Lenovo may use or distribute any of the information you supply in any way it believes appropriate without incurring any obligation to you. Any references in this publication to non-Lenovo Web sites are provided for convenience only and do not in any manner serve as an endorsement of those Web sites. The materials at those Web sites are not part of the materials for this Lenovo product, and use of those Web sites is at your own risk. Any performance data contained herein was determined in a controlled environment. Therefore, the result obtained in other operating environments may vary significantly. Some measurements may have been made on development-level systems and there is no guarantee that these measurements will be the same on generally available systems. Furthermore, some measurements may have been estimated through extrapolation. Actual results may vary. Users of this document should verify the applicable data for their specific environment. © Copyright Lenovo 2018 115 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 ThinkPad logo TrackPoint Microsoft, Windows, Windows Server, and Cortana are trademarks of the Microsoft group of companies. The terms HDMI and HDMI High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC in the United States and other countries. USB-C is a trademark of USB Implementers Forum. Other company, product, or service names may be the trademarks or service marks of others. 116 ThinkPad P52 Hardware Maintenance Manual Part Number: SP40M74023 Printed in China (1P) P/N: SP40M74023 *1PSP40M74023*
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