About this manual ® This manual contains service and reference information for the following ThinkPad products: ThinkPad Edge E431 Machine Types (MT) 6277 and 6886 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.
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. •...
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: http://www.lenovo.com/serviceparts-lookup. c. Insulation must not be frayed or worn. 4. Check for cracked or bulging batteries.
Notes: 1. Use product-specific ESD procedures when they exceed the requirements noted here. 2. Ensure 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. •...
Laser compliance statement (multilingual translations) The laser compliance statements in this section are provided in the following languages: • English • Arabic • Brazilian Portuguese • French • German • Hebrew • Japanese • Korean • Spanish • Traditional Chinese Chapter 1 Safety information...
After a system board is replaced, ensure that the latest UEFI BIOS is loaded to the system board before you complete the service action. To download and install software fixes, drivers, and UEFI BIOS, go to http://www.lenovo.com/ThinkPadDrivers and follow the instructions on the screen.
Dynamic Configure To Order (CTO) This provides the ability for a customer to configure a Lenovo solution from an eSite, 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-digit MT and 3-digit model, where model = “CTO”...
4-digit MT and 3-digit model, where model = a “fixed part number”, not “CTO” (Example: 1829-F1U). Also, eSupport will list these products under the same fixed model number. FRU identification Lenovo eSupport is the information resource used to identify which FRUs are used to support CTO, CMV, and GAV products. Using eSupport •...
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Use the Hardware Maintenance Manual to view the complete list of FRUs at the MT model level. Hardware Maintenance Manual...
This chapter presents following information: • “What to do first” on page 27 • “Checkout guide” on page 28 – “Lenovo Solution Center” on page 28 – “Quick test programs” on page 28 – “UEFI diagnostic program” on page 29 –...
The Lenovo Solution Center program is available for download at http://www.lenovo.com/diags To run the Lenovo Solution Center program, go to Control Panel and click System and Security ➙ Lenovo ➙ System Health and Diagnostics, and then follow the instructions on the screen.
• Microsoft Windows Server 2003 • Microsoft Windows Server 2008 To download and install a quick test program, go to http://www.lenovo.com/diags and follow the instructions on the Web site. To run a test using a quick test program, do the following: 1.
To create a bootable diagnostic medium, do the following: 1. Go to http://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: •...
To check for detailed battery status information, do the following: • For Windows 7: Open the Power Manager program and click the Battery tab. • For Windows 8: Open the Lenovo Support program and click Battery Health, or open the Lenovo Settings program and click Power.
To check the battery pack, do the following: 1. Power off the computer. 2. Remove the battery pack and measure the voltage between battery terminals 1 (+) and 7 (-). See the following figure: Terminal Voltage (V dc) + 0 to + 12.6 7(-) Ground (-) 6(-)
Service Web site: When the latest maintenance diskette and the system program service diskette become available, they will be posted on http://www.lenovo.com/support. Restoring the factory contents by using the Recovery Disc Set When the main storage drive is replaced because of a failure, no product recovery program is on the new drive.
9. When the recovery process completes, the Welcome to Microsoft Windows screen is displayed. Follow the instructions on the screen to complete the Windows setup. 10. After you have completed the Windows setup, you might want to restore the original startup sequence. Start the ThinkPad Setup program and then press F9 to restore the default settings.
If a master hard disk password has been set, it can be used to access 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 hard disk password 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. 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.
Screen blank mode (for the Windows 7 operating system only) If the time set on the “Turn off monitor” timer in the operating system expires, the LCD backlight turns off. To put the computer into screen blank mode, do the following: 1.
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.
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Table 2. Numeric error codes (continued) FRU or action, in sequence Symptom or error (beeps, if any) 0187 Replace the system board. EAIA data access error - The access to EEPROM is failed. 0188 Replace the system board. Invalid RFID Serialization Information Area. 0189 Replace the system board.
The battery installed is not supported by this system Replace the battery. and will not charge. Please replace the battery with the correct Lenovo battery for this system. Press the ESC key to continue. This system does not support batteries that are not Replace the battery.
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.
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.
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Table 7. Status indicators (continued) Indicator Meaning System status Blinking three times: The computer is initially connected to power. indicator On: The computer is in use. Off: The computer is off or in hibernation mode. Slow blinking: The computer is in sleep mode. Fast blinking: The computer is entering hibernation mode.
Rear view System status indicator HDMI port Combo audio jack VGA connector USB 3.0 connectors Security-lock slot : For the description of the system status indicator, see Chapter 5 “Status indicators” on page 43. Bottom view Small bottom cover Large bottom cover Battery pack latches Built-in stereo speakers Battery pack...
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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.
Major FRUs and CRUs Hardware Maintenance Manual...
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Backup battery Wireless WAN card M.2 solid-state drive Wireless LAN card Battery pack Lenovo OneLink connector cover DC-in bracket and DC-in support bracket DC-in connector with RJ45 sub card Optical drive or blank bezel Card reader with USB connector sub card...
Microphone combo card LCD cables Touch panel control board cable Hinge kit Wireless LAN antenna assembly LCD cover kit Looking up FRU information For detailed FRU information, including part numbers, descriptions, and substitution part numbers, go to http://www.lenovo.com/serviceparts-lookup. Chapter 7 Locations...
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 http://www.lenovo.com/support.
If you replace the system board, you must restore the serial number of the system unit to its original value. Before replacing the system board, save the original serial number by doing the following: 1. Install the latest version of LENOVO ThinkPad Hardware Maintenance Diskette or Maintenance Key, and then restart the computer.
When you replace the system board, follow the following steps to create new UUID for the system board if the system board does not have a UUID: 1. Install the latest version of LENOVO ThinkPad Hardware Maintenance Diskette or Maintenance Key, and then restart the computer.
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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. Hardware Maintenance Manual...
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 http://www.lenovo.com/support.
Removing the SIM card The computer you are servicing might have a SIM card that the customer has installed. In such situations, remove the SIM card before you start the servicing. To remove the SIM card, you need to remove the battery pack first. See “1020 Battery pack” on page 63. After you finish the servicing, ensure that you insert the card back into the slot firmly.
The only exception to this is if the battery pack is physically damaged or a customer is reporting a possible safety issue. If Lenovo Solution Center is not installed in the computer, the customer should download this program before a non-physically damaged battery pack is replaced.
Unlock the battery latch . Hold the battery lock lever in the unlocked position, and remove the battery pack When installing: Install the battery pack into the slot. Ensure that the battery latch is in the locked position. 1030 Large bottom cover For access, remove this FRU: •...
When installing: Attach the large bottom cover as shown in the following illustration. 1040 Small bottom cover For access, remove this FRU: • “1020 Battery pack” on page 63 Removal steps of the small bottom cover Loosen the screws and then remove the small bottom cover When installing: Attach the small bottom cover as shown in the following illustration.
1050 Optical drive or blank bezel For access, remove these FRUs in order: • “1020 Battery pack” on page 63 • “1030 Large bottom cover” on page 64 Removal steps of the optical drive or blank bezel Torque Step Screw (quantity) Color M2 ×...
Removal steps of the memory modules When installing: Note: If only one memory module is to be installed on the computer you are servicing, the memory module must be installed in the in the lower memory slot (SLOT-0), not the upper memory slot (SLOT-1).
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Removal steps of the hard disk drive assembly or solid-state drive assembly Torque Step Screw (quantity) Color M2 × 3.5 mm, wafer-head, nylon-coated (4) Black 0.181 Nm (1.85 kgf-cm) When installing: Ensure that the hard disk drive assembly or solid-state drive assembly is attached firmly. Hardware Maintenance Manual...
Removal steps of hard disk drive bracket or the solid-state drive bracket Step Screw (quantity) Color Torque M3 × 3 mm, wafer-head, nylon-coated (4) Silver 0.181 Nm (1.85 kgf-cm) 1080 Wireless WAN card or M.2 solid-state drive For access, remove these FRUs in order: •...
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Removal steps of the wireless WAN card In step , unplug the connectors by using the antenna RF connector removal tool or pick the connectors with your fingers and gently unplug them as shown. When installing: Plug the red cable into the connector marked MAIN, and the blue cable into the connector marked AUX on the card.
• Ensure that you partition the M.2 solid-state drive after installing it on the computer you are servicing. Otherwise, the M.2 solid-state drive will not function correctly. For instructions on on how to partition an M.2 solid-state drive, go to http://www.lenovo.com/support/msata-fru. Step...
Removal steps of the wireless LAN card In step , unplug the connectors by using the antenna RF connector removal tool or pick the connectors with your fingers and gently unplug them as shown. Step Screw (quantity) Color Torque M2 × 3.5 mm, wafer-head, nylon-coated (1) Black 0.181 Nm (1.85 kgf-cm)
• “1040 Small bottom cover” on page 65 Removal steps of the backup battery DANGER Use only the authorized battery specified for your computer. Any other battery could ignite or explode. When installing: Ensure that the connector is attached firmly. 1110 Thermal fan assembly For access, remove these FRUs in order: •...
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Removal steps of the thermal fan assembly 1. Detach the connector. When installing: Ensure that the connector is attached firmly to the system board. 2. Loosen the screws in ascending alphabetical order as illustrated. Note: Different models might have different numbers of screws. 3.
When installing: • Do not press the top of the fan cover and the fan hub. • Before you attach the thermal fan assembly to the computer, apply thermal grease, at an amount of 0.2 grams, on the part marked as shown in the following illustrations.
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Keyboard multi-tool When you remove the keyboard, use the keyboard multi-tool. The following illustration shows a keyboard multi-tool. Removal steps of the keyboard 1. Unlock the keyboard frame. 2. To reveal the screw heads beneath the keyboard frame, slide the keyboard frame forward by 2.5 mm (0.1 inch) with the keyboard multi-tool.
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3. Loosen the screws that secure the keyboard with the keyboard multi-tool. 4. Pivot the keyboard slightly upward until you can see the connectors on the bottom side of the keyboard. Then turn over the keyboard. Chapter 9 Removing or replacing a FRU...
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5. Gently put the keyboard on the palm rest and detach the connectors. Then remove the keyboard. Installation steps of the keyboard 1. Attach the connectors and then turn over the keyboard. Hardware Maintenance Manual...
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2. Insert the keyboard into the space under the frame of the keyboard bezel. 3. Reveal the screw heads by sliding the keyboard frame forward with the keyboard multi-tool. Ensure that the screw heads are exposed completely. Chapter 9 Removing or replacing a FRU...
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4. Tighten the screws with the keyboard multi-tool to secure the keyboard in place. 5. Slide the keyboard frame backward by 2.5 mm (0.1 inch) with the keyboard multi-tool. Hide the latches of the keyboard frame under the keyboard bezel by pushing the latches with your finger as shown. Hardware Maintenance Manual...
6. Adjust the keyboard frame in place with the keyboard multi-tool and ensure that all the latches are secured under the keyboard bezel. 7. Turn the computer over and lock the keyboard frame. 1130 Keyboard bezel For access, remove these FRUs in order: •...
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Removal steps of the keyboard bezel assembly Step Screw (quantity) Color Torque Black 0.181 Nm M2 × 7 mm, wafer-head, nylon-coated (12) (1.85 kgf-cm) M2 × 2.5 mm, wafer-head, nylon-coated (3) Black 0.181 Nm (1.85 kgf-cm) Step Screw (quantity) Color Torque M2 ×...
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When installing: Ensure that the connectors are attached firmly to the system board. When installing: Ensure that the connectors are attached firmly to the system board. Chapter 9 Removing or replacing a FRU...
In step , release the keyboard bezel from the frame using a plastic pry tool. 1140 Microprocessor For access, remove these FRUs in order: • “1020 Battery pack” on page 63 • “1030 Large bottom cover” on page 64 • “1110 Thermal fan assembly”...
Removal steps of the microprocessor Rotate the head of the screw in the direction shown by the arrow to release the lock; then remove the microprocessor When installing: Place the microprocessor above the microprocessor socket, and then rotate the head of the screw in the direction shown by the arrow to secure the microprocessor.
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• “1050 Optical drive or blank bezel” on page 66 • “1060 Memory modules” on page 66 • “1070 Hard disk drive assembly or solid-state drive assembly” on page 67 • “1080 Wireless WAN card or M.2 solid-state drive” on page 69 •...
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When installing: Ensure that the connectors are attached firmly to the system board. When installing: Ensure that the connectors are attached firmly to the system board. Chapter 9 Removing or replacing a FRU...
Step Screw (quantity) Color Torque M2 × 7 mm, wafer-head, nylon-coated (1) Black 0.181 Nm (1.85 kgf-cm) M2 × 3.5 mm, wafer-head, nylon-coated (2) Black 0.181 Nm (1.85 kgf-cm) 1160 Card reader with USB connector sub card For access, remove these FRUs in order: •...
1170 DC-in bracket, DC-in connector with RJ45 sub card, and DC-in support bracket For access, remove these FRUs in order: • “1010 Lenovo OneLink connector cover” on page 63 • “1020 Battery pack” on page 63 • “1030 Large bottom cover” on page 64 •...
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• “1130 Keyboard bezel” on page 81 Removal steps of the DC-in bracket Step Screw (quantity) Color Torque M2 × 3.5 mm, wafer-head, nylon-coated (1) Black 0.181 Nm (1.85 kgf-cm) Removal steps of the DC-in connector with RJ45 sub card Hardware Maintenance Manual...
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Removal steps of the DC-in support bracket Chapter 9 Removing or replacing a FRU...
1180 Speaker assembly For access, remove these FRUs in order: • “1020 Battery pack” on page 63 • “1030 Large bottom cover” on page 64 • “1040 Small bottom cover” on page 65 • “1050 Optical drive or blank bezel” on page 66 •...
M2 × 3.5 mm, wafer-head, nylon-coated (1) (1.85 kgf-cm) 1200 LCD unit For access, remove these FRUs in order: • “1010 Lenovo OneLink connector cover” on page 63 • “1020 Battery pack” on page 63 • “1030 Large bottom cover” on page 64 •...
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• “1070 Hard disk drive assembly or solid-state drive assembly” on page 67 • “1080 Wireless WAN card or M.2 solid-state drive” on page 69 • “1090 Wireless LAN card” on page 71 • “1100 Backup battery” on page 72 •...
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In step , release the wireless antenna cables from the cable guides. Chapter 9 Removing or replacing a FRU...
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In step and step , release wireless antenna cables from the cable guides. Hardware Maintenance Manual...
1210 Base cover assembly For access, remove these FRUs in order: • “1010 Lenovo OneLink connector cover” on page 63 • “1020 Battery pack” on page 63 • “1030 Large bottom cover” on page 64 • “1040 Small bottom cover” on page 65 •...
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Applying labels to the base cover The new base cover FRU is shipped with a kit containing labels of several kinds. The following illustration shows the correct location of each label. If the Windows Certificate of Authentication (COA) label is attached to a part that is replaced, return the old part with the label attached to the customer, or provide a letter to the customer stating what the label was originally on the computer and what the label part number, serial number, and product key were.
For models with non-touch panel 2010 LCD bezel assembly For access, remove these FRUs in order: • “1010 Lenovo OneLink connector cover” on page 63 • “1020 Battery pack” on page 63 • “1030 Large bottom cover” on page 64 •...
When installing: Ensure that all the latches are attached firmly. Then secure the bezel with the screws. 2020 LCD non-touch panel and hinges For access, remove these FRUs in order: • “1010 Lenovo OneLink connector cover” on page 63 • “1020 Battery pack” on page 63 •...
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Removal steps of the LCD non-touch panel Step Screw (quantity) Color Torque M2 × 2.5 mm, wafer-head, nylon-coated, small head (4) Black 0.181 Nm (1.85 kgf-cm) When installing: Ensure that the LCD connector is attached firmly. Hardware Maintenance Manual...
(1.85 kgf-cm) 2030 Camera with microphone combo card and LCD cables For access, remove these FRUs in order: • “1010 Lenovo OneLink connector cover” on page 63 • “1020 Battery pack” on page 63 • “1030 Large bottom cover” on page 64 •...
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• “1120 Keyboard” on page 75 • “1130 Keyboard bezel” on page 81 • “1150 System board assembly” on page 85 • “1170 DC-in bracket, DC-in connector with RJ45 sub card, and DC-in support bracket” on page 89 • “1200 LCD unit” on page 93 •...
Cable routing: When you install the wireless antenna assembly, route the cables as shown in the following illustration. 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. Antenna locations Wireless LAN AUX antenna (black) Wireless WAN AUX antenna (blue)
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• “1010 Lenovo OneLink connector cover” on page 63 • “1020 Battery pack” on page 63 • “1030 Large bottom cover” on page 64 • “1040 Small bottom cover” on page 65 • “1050 Optical drive or blank bezel” on page 66 •...
0.392 Nm (4 kgf-cm) 2020 Camera with microphone combo card For access, remove these FRUs in order: • “1010 Lenovo OneLink connector cover” on page 63 • “1020 Battery pack” on page 63 • “1030 Large bottom cover” on page 64 •...
When installing: Ensure that the camera with microphone combo card is attached firmly. 2030 LCD cables and touch panel control board cable For access, remove these FRUs in order: • “1010 Lenovo OneLink connector cover” on page 63 • “1020 Battery pack” on page 63 •...
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• “2020 Camera with microphone combo card” on page 108 Removal steps of the LCD cables Removal steps of the touch panel control board cable When installing: Ensure that the connector is attached firmly. Hardware Maintenance Manual...
2040 Hinges For access, remove these FRUs in order: • “1010 Lenovo OneLink connector cover” on page 63 • “1020 Battery pack” on page 63 • “1030 Large bottom cover” on page 64 • “1040 Small bottom cover” on page 65 •...
2050 Wireless LAN antenna assembly and LCD rear cover assembly For access, remove these FRUs in order: • “1010 Lenovo OneLink connector cover” on page 63 • “1020 Battery pack” on page 63 • “1030 Large bottom cover” on page 64 •...
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Cable routing: When you install the wireless antenna assembly, route the cables as shown in the following illustration. 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. Antenna locations Wireless LAN AUX antenna (black) Wireless LAN MAIN antenna (gray)
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.
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 ThinkPad TrackPoint Ultrabay Microsoft, Windows, and Windows Server are trademarks of the Microsoft group of companies.
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Abbreviation Term Personal Computer Platform Controller Hub Product Entitlement Warehouse Power-on self-test POST Random Access Memory Radio frequency RFID Radio-frequency identification Ring indicator Registered jack SATA Serial Advanced Technology Attachment Subscriber Identity Module Supervisor password TFTs Thin-film transistors UEFI Unified Extensible Firmware Interface Universal Serial Bus UUID Universally Unique Identifier...
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Part Number: 0C10928 Printed in China (1P) P/N: 0C10928 *1P0C10928*...