Hardware Maintenance Manual ThinkPad 8
Note: Before using this information and the product it supports, be sure to read the general information under Appendix A “Notices” on page 55. Second Edition (January 2014) © Copyright Lenovo 2014. LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant a General Services Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS-35F-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) . . . . . Chapter 2. Important service information . . . . . . . . . . . . . .
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About this manual This manual contains service and reference information for the following ThinkPad® products. Machine Machine type (MT) ThinkPad 8 20BN and 20BQ 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.
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Chapter 1. Safety information This chapter presents following safety information that you need to be familiar with before you service a ThinkPad tablet computer.
• 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. • Find the room emergency power-off (EPO) switch, disconnecting switch, or electrical outlet.
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.
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.
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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 19 – “Important notice for replacing a system board” on page 19 • “Strategy for replacing FRUs for CTO, special bid model, and standard models” on page 20 – “Product definition” on page 20 – “FRU identification” on page 20 Important: • Advise customers to access http://www.lenovo.
• Avoid bending a system board and hard pushing to prevent cracking at each BGA (Ball Grid Array) chipset. Strategy for replacing FRUs for CTO, special bid model, 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.
5. On the PRODUCT AND PARTS DETAIL page, tap Parts Detail tab to view the FRU list. Note: The FRU list is a general list of components and does not contain specific model information. Chapter 2.
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Chapter 3. General checkout This chapter introduces following information: • “What to do first” on page 23 • “Checkout guide” on page 24 • “Power system checkout” on page 24 Before you go to the checkout guide, be sure to read the following important notes. Important: • 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, use new nylon-coated screws.
• Forgotten tablet password (making the tablet unusable) • Sticky keys caused by spilling a liquid • Damage caused due to use of an incorrect ac adapter The following symptom might indicate damage caused by nonwarranted activities: • Missing parts might be a symptom of unauthorized service or modification. 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.
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. The battery status icon in the Windows® notification area displays the percentage of the remaining battery power.
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Chapter 4. Related service information This chapter presents the following information: • “Recovery overview” on page 27 • “Supervisor password” on page 29 • “Symptom-to-FRU index” on page 30 Recovery overview This section provides information about the recovery solutions provided on your tablet. A Windows recovery image is preinstalled in the recovery partition on your tablet. The Windows recovery image enables you to refresh your tablet, or reset your tablet to the factory default settings.
• To perform a complete format, tap Fully clean the drive to start the process. The process will take several hours. 4. Follow the instructions on the screen to reset your tablet to the factory default settings. Using the advanced startup options With the advanced startup options, you can change the firmware settings of the tablet, change the startup settings of the Windows operating system, start the tablet from an external device, or restore the Windows operating system from a system image.
Important: If you clear the Copy the recovery partition from the PC to the recovery drive. option, you will create recovery media without the recovery partition content. You still can start the tablet from the recovery media, but you might be unable to recover your tablet if the recovery partition on your tablet is damaged. 5. Connect a proper USB drive then tap Next. 6. Tap Create in the Recovery Drive window. The creation of the recovery media starts. 7.
3. Press the power button and the volume-up button at the same time when you turn on the tablet. 4. The ThinkPad Tablet Setup program main menu opens. 5. Tap Security. 6. In the Password submenu, tap Enter next to Supervisor Password. 7. A window opens, prompting you to enter a new password. Depending on your needs, do one of the following: • To set a password, do the following: a. Choose your supervisor password and type it in the Enter New Password field. b. Tap the next line.
Note: For a device not supported by diagnostic codes in the ThinkPad tablet computers, see the manual for that device. Numeric error codes Table 1. Numeric error codes Symptom or error FRU or action, in sequence 0183 Bad CRC of Security Settings in EFI Variable. Enter ThinkPad Tablet Setup. Checksum of the Security settings in the EFI Variable is not correct. Enter ThinkPad Tablet Setup to check Security settings, and restart the system. If you still have a problem, have the tablet serviced.
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 24. 1. Turn off the computer. 2.
Chapter 5. Locations This chapter introduces the locations of the hardware components on your tablet. Locating tablet controls, connectors, and indicators This topic introduces the locations of the tablet controls, connectors, and indicators. Front view and side view 9 10 8 1 7 2 3 6 11 11 4 13 12 5 1 Power button 2 Emergency-reset hole 3 Volume-control buttons 4 Micro USB 3.
Rear view Note: Your tablet might look slightly different from the following illustration. 2 1 3 1 Rear-facing camera with a flash 2 System-status indicator 3 Speakers Locating FRUs and CRUs This topic introduces the following service parts: • “Major FRUs” on page 35 • “Miscellaneous kits and other parts” on page 36 Notes: • Each FRU is available for all types or models, unless otherwise specified.
– Self-service CRUs: Examples of these types of CRUs include the ac power adapter and power cord. Major FRUs 1 2 3 4 5 6 7 8 16 9 10 11 15 12 14 13 No. FRU (Overall) Self-service CRU Optional-service CRU 1 Back cover assembly No No 2 Touch-sensor cable No No 3 Audio-card cable No No 4 Display cable No No 5 Built-in battery No No 6 Speakers assembly No No 7 Audio card No No 8 Touch-sensor support bracket No No 9 Wireless-WAN card No No Chapter 5.
No. FRU (Overall) Self-service CRU Optional-service CRU 10 Rear-facing camera No No 11 Front-facing camera No No 12 Wireless-WAN antenna assembly No No 13 LCD module assembly No No 14 System-board support bracket No No 15 System board No No 16 Wireless-LAN antenna assembly No No Miscellaneous kits and other parts Table 2.
Chapter 6. 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.
180 degrees more (Cross-section) 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 Instructions for retaining serial numbers, MTM, UUID, or asset ID can be found at the following Web site: http://support.
Chapter 7. 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.
Before servicing the tablet Disabling the built-in battery Before replacing any FRU, ensure that you have disabled the built-in battery. To disable the built-in battery, press the emergency-reset button in the emergency-reset hole using a straightened paper clip. Removing the SIM card Some models might have the SIM card that the customer has installed. If the tablet you are servicing has the SIM card, remove it before you start the servicing.
1010 Back cover assembly Removal steps of the back cover assembly Note: Your tablet might look slightly different from the following illustrations. 2 1 Step Screw (quantity) Color Torque 2 M1.6 × 2.5 mm, flat-head, nylon-coated (1) Black 0.098 Nm (1.00 kgf-cm) Use a plastic pry tool to detach the latches of the back cover assembly 3 . 3 3 3 3 3 4 3 3 3 3 3 3 Chapter 7.
Applying labels to the back cover assembly: The new back cover assembly is shipped with a kit containing labels of several kinds. Apply those labels when you replace the back cover assembly. For the labels that are not shipped with the new back cover assembly, peel them off from the old back cover assembly, and then adhere them to the new one. The following illustration shows the location of each label.
2 1 1 Step Screw (quantity) Color Torque 2 M1.6 × 2.5 mm, flat-head, nylon-coated (1) Black 0.098 Nm (1.00 kgf-cm) 3 When installing: Plug the red cable into the main connector, and the blue cable into the auxiliary connector. 1030 Front-facing camera For access, remove this FRU: • “1010 Back cover assembly” on page 41 Chapter 7.
Removal steps of the front-facing camera 2 1 When installing: Ensure that the connector is attached firmly to the system board. 1040 Rear-facing camera For access, remove this FRU: • “1010 Back cover assembly” on page 41 Removal steps of the rear-facing camera 2 1 When installing: Ensure that the connector is attached firmly to the system board.
Removal steps of the system board 2 3 1 5 4 6 8 10 7 10 9 11 11 12 11 11 11 12 12 13 Step Screw (quantity) Color Torque 11 M1.6 × 2.5 mm, flat-head, nylon-coated (5) Black 0.098 Nm (1.00 kgf-cm) 12 M1.6 × 3.5 mm, flat-head, nylon-coated (3) Silver 0.098 Nm (1.00 kgf-cm) When installing: Ensure that the each connector is attached firmly. 1060 Audio-card cable For access, remove this FRU: • “1010 Back cover assembly” on page 41 Chapter 7.
Removal steps of the audio-card cable 2 1 1 When installing: Ensure that the cable is attached firmly to the system board and the audio card. 1070 Audio card For access, remove this FRU: • “1010 Back cover assembly” on page 41 • “1060 Audio-card cable” on page 45 Removal steps of the audio card 1 1 2 Step Screw (quantity) Color Torque 1 M1.6 × 2.5 mm, flat-head, nylon-coated (2) Black 0.098 Nm (1.
Removal steps of the touch-sensor-card support bracket 1 2 4 3 6 5 7 7 6 7 7 7 7 7 7 7 7 7 8 8 Chapter 7.
9 10 Step Screw (quantity) Color Torque 9 M1.6 × 2.5 mm, flat-head, nylon-coated (1) Black 0.098 Nm (1.00 kgf-cm) When installing: Ensure that the connectors are attached firmly to the system board.
When installing: Ensure that the connector is attached firmly. 1100 Display cable For access, remove this FRU: • “1010 Back cover assembly” on page 41 • “1060 Audio-card cable” on page 45 • “1070 Audio card” on page 46 • “1080 Touch-sensor-card support bracket” on page 46 Removal steps of the display cable 2 1 When installing: Ensure that the cable is attached firmly with the end marked MB to the system board and the other end to the touch-sensor card.
Removal steps of the touch-sensor cable 3 1 2 When installing: Ensure that the cable is attached firmly with the end marked MB to the system board and the other end to the touch-sensor card.
a b a Wireless-LAN antenna (Main) b Wireless-LAN antenna (Auxiliary) When installing: Ensure that the connectors are attached firmly. 1130 Built-in battery For access, remove this FRU: • “1010 Back cover assembly” on page 41 • “1060 Audio-card cable” on page 45 • “1070 Audio card” on page 46 • “1080 Touch-sensor-card support bracket” on page 46 • “1100 Display cable” on page 49 • “1110 Touch-sensor cable” on page 49 DANGER Use only the authorized battery specified for your tablet.
3 When installing: Ensure that the connector is attached firmly to the system board.
• • • • • • • • “1050 System board” on page 44 “1060 Audio-card cable” on page 45 “1070 Audio card” on page 46 “1080 Touch-sensor-card support bracket” on page 46 “1100 Display cable” on page 49 “1110 Touch-sensor cable” on page 49 “1130 Built-in battery” on page 51 “1140 System-board support bracket” on page 52 Removal steps of the wireless-WAN antenna assembly Note: The wireless-WAN antenna assembly is only available on some models.
b a a Wireless-WAN antenna (Main) b Wireless-WAN antenna (Auxiliary) When installing: Ensure that the connectors are attached firmly.
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.
Electronic emission notices For electronic emission information on Class B digital devices, refer to the corresponding information in the User Guide. Trademarks The following terms are trademarks of Lenovo in the United States, other countries or both: Lenovo ThinkPad Microsoft and Windows are trademarks of the Microsoft group of companies. The terms HDMI and HDMI High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC in the United States and other countries.
Appendix B. Abbreviation and acronym table The following table lists all abbreviations and acronyms which might be used in this manual.
Abbreviation Term RF radio frequency RFID radio-frequency identification RI ring indicator RJ registered jack SATA Serial Advanced Technology Attachment SIM subscriber identity module SVP supervisor password TFTs thin-film transistors UEFI Unified Extensible Firmware Interface USB Universal Serial Bus UUID universally unique identifier VGA video graphics array VRAM video random-access memory WAN wide area network 58 Hardware Maintenance Manual
Part Number: SP40A26143_01 Printed in China (1P) P/N: SP40A26143_01 *1PSP40A26143_01*
