Lenovo B50-50 Hardware Maintenance Manual
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Lenovo B50-50 Hardware Maintenance Manual

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  • Page 1 Lenovo B50-50 Hardware Maintenance Manual...
  • Page 2 “Notices” on page 75. First Edition (November 2015) © Copyright Lenovo 2015. All rights reserved. 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.

  • Page 3: Table Of Contents

    Supervisor password ........24 Power management .......... 25 Screen blank state ........25 Putting your computer to sleep....25 Shutting down the computer..... 26 Lenovo B50-50 ..........27 Specifications ............. 27 Status indicators ..........29 Hotkeys ............... 30 FRU replacement notices........31 Screw notices..........

  • Page 4: About This Manual

    This manual is intended only for trained servicers who are familiar with Lenovo products. Use this manual to troubleshoot problems effectively. Before servicing a Lenovo product, make sure to read all the information under “Safety information” on page 1 and “Important service information”...

  • Page 5: Safety Information

    Safety information Safety information This chapter presents the following safety information that you need to get familiar with before you service a Lenovo B50-50 computer: • “General safety” on page 2 • “Electrical safety” on page 3 • “Safety inspection guide” on page 5 •...

  • Page 6: General Safety

    Lenovo B50-50 Hardware Maintenance Manual General safety Follow the following rules to ensure general safety: • Observe a good housekeeping in the area where the machines are put during and after the maintenance. • When lifting any heavy object: 1. Make sure that you can stand safely without slipping.

  • Page 7: Electrical Safety

    Safety information Electrical safety Observe the following rules when working on electrical equipments. Important: Use only approved tools and test equipments. Some hand tools have handles covered with a soft material that does not insulate you when working with live electrical currents. Many customers have rubber floor mats near their machines that contain small conductive fibers to decrease electrostatic discharges.
  • Page 8 Lenovo B50-50 Hardware Maintenance Manual • 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.

  • Page 9: Safety Inspection Guide

    4. Check for cracked or bulging batteries. 5. Remove the cover. 6. Check for any obvious non-Lenovo alterations. Use good judgment as to the safety of any non-Lenovo 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.

  • Page 10: Handling Devices That Are Sensitive To Electrostatic Discharge

    Lenovo B50-50 Hardware Maintenance Manual 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.

  • Page 11: Safety Notices: Multilingual Translations

    Safety information Safety notices: multilingual translations The safety notices in this section are provided in English, French, German, Hebrew, Italian, Japanese, and Spanish. Safety notice 1 Before the computer is powered on after FRU replacement, make sure all screws, springs, and other small parts are in place and are not left loose inside the computer.
  • Page 12 Lenovo B50-50 Hardware Maintenance Manual Safety notice 2 DANGER Some standby batteries contain a small amount of nickel and cadmium. Do not disassemble a standby battery, recharge it, throw it into fire or water, or short-circuit it. Dispose of the battery as required by local ordinances or regulations.
  • Page 13 Safety information Safety notice 3 DANGER The battery pack contains small amounts of nickel. Do not disassemble it, throw it into fire or water, or short-circuit it. Dispose of the battery pack as required by local ordinances or regulations. Use only the battery in the appropriate parts listing when replacing the battery pack.
  • Page 14 Lenovo B50-50 Hardware Maintenance Manual Safety notice 4 DANGER The lithium battery can cause a fire, an explosion, or a severe burn. Do not recharge it, remove its polarized connector, disassemble it, heat it above 100°C (212°F), incinerate it, or expose its cell contents to water. Dispose of the battery as required by local ordinances or regulations.
  • Page 15 Safety information Safety notice 5 If the LCD breaks and the fluid from inside the LCD gets into your eyes or on your hands, immediately wash the affected areas with water at least for 15 minutes. Seek medical care if any symptoms caused by the fluid are present after washing.
  • Page 16 Lenovo B50-50 Hardware Maintenance Manual Safety notice 6 DANGER To avoid shock, do not remove the plastic cover that protects the lower part of the inverter card. Afin d’éviter tout risque de choc électrique, ne retirez pas le cache en plastique protégeant la partie inférieure de la carte d’alimentation.
  • Page 17 Safety information Safety notice 8 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. Avant de retirer une unité remplaçable en clientèle, mettez le système hors tension, débranchez tous les cordons d’alimentation des socles de prise de courant, retirez la batterie et déconnectez tous les cordons d’interface.

  • Page 18: Laser Compliance Statement

    Lenovo B50-50 Hardware Maintenance Manual Laser compliance statement Some models of Lenovo computer are equipped from the factory with an optical storage device such as a CD-ROM drive or a DVD-ROM drive. Such devices are also sold separately as options. If one of these drives is installed, it is certified in the U.S.
  • Page 19 Safety information A CD-ROM drive, a DVD-ROM drive, or any other storage device installed may contain an embedded Class 3A or Class 3B laser diode. Note the following: DANGER Emits visible and invisible laser radiation when open. Do not stare into the beam, do not view directly with optical instruments, and avoid direct exposure to the beam.

  • Page 20: Important Service Information

    To download software fixes, drivers, and BIOS, follow the steps below: 1. Go to http://support.lenovo.com 2. Enter the serial number or select a product or use Lenovo smart downloading. 3. Select the BIOS/Driver/Applications and download.

  • Page 21: Strategy For Replacing A Hard Disk Drive

    Important service information Strategy for replacing a hard disk drive Always try to run a low-level format before replacing a hard disk drive. This will cause all customer data on the hard disk to be lost. Make sure that the customer has a current backup of the data before performing this action.

  • Page 22: Important Information About Replacing Rohs Compliant Frus

    Electronic Equipment Directive (2002/95/EC) is a European Union legal requirement affecting the global electronics industry. RoHS requirements must be implemented on Lenovo products placed on the market after June 2006. Products on the market before June 2006 are not required to have RoHS compliant parts.

  • Page 23: General Checkout

    General checkout General checkout This chapter presents the following information: • “What to do first” on page 20 • “Power system checkout” on page 21 Before you go to the checkout, make sure to read the following important notes: Important notes: •...

  • Page 24: What To Do First

    Lenovo B50-50 Hardware Maintenance Manual What to do first When you do return an 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 servicer 2.

  • Page 25: Power System Checkout

    3. If the voltage is not correct, replace the AC adapter. 4. If the voltage is acceptable, do the following: • Replace the system board. • If the problem persists, go to “Lenovo B50-50” on page 27. Note: Noise from the AC adapter does not always indicate a defect.

  • Page 26: Checking Operational Charging

    Lenovo B50-50 Hardware Maintenance Manual Checking operational charging To check whether the battery charges properly during operation, use a discharged battery pack or a battery pack that has less than 50% of the total power remaining when installed in the computer.

  • Page 27: Related Service Information

    Related service information Related service information This chapter presents the following information: • “Restoring the factory contents by using Recovery Disc Set” on page 23 • “Passwords” on page 24 • “Power management” on page 25 Restoring the factory contents by using Recovery Disc Set Restore of factory default This topic provides information about the recovery programs that are available for you to recover the computer settings.

  • Page 28: Passwords

    Lenovo B50-50 Hardware Maintenance Manual Passwords As many as three passwords may be needed for any Lenovo computer: the power-on password (POP), the hard disk password (HDP), and the supervisor password (SVP). If any of these passwords has been set, a prompt for it appears on the screen whenever the computer is turned on.

  • Page 29: Power Management

    Related service information Power management Note: Power management modes are not supported for APM operating system. To reduce power consumption, the computer has three power management modes: screen blank, sleep (standby), and hibernation. Screen blank state If the time set on the “Turn off monitor” timer in the operating system expires, the LCD backlight turns off.

  • Page 30: Shutting Down The Computer

    Lenovo B50-50 Hardware Maintenance Manual Shutting down the computer If you are not going to use your computer for a long time, shut it down. To shut down the computer, do one of the following: Windows 7: Click Start Shut down.

  • Page 31: Lenovo B50-50

    • “FRU replacement notices” on page 31 • “Removing and replacing an FRU” on page 32 • “Locations” on page 58 • “Parts list” on page 61 Specifications The following table lists the specifications of the Lenovo B50-50: Table 1. Specifications Feature Description Processor See the system properties of your computer.

  • Page 32: Specifications

    Lenovo B50-50 Hardware Maintenance Manual Table 1. Specifications (continued) Feature Description WLAN Non-Intel Wifi 1x1 bgn, mini-PCIE WWAN Bluetooth Option Keyboard 6-row Lenovo Keyboard Touch pad One piece touch pad Integrated camera 0.3 M Battery Li-Cylinder AC adapter • 45 W, 20 V for integrated graphic model •...

  • Page 33: Status Indicators

    Lenovo B50-50 Status indicators The system status indicators below show the computer status: Table 2. Status indicators Indicator Indicator Meaning status On (solid The battery has more than 20% charge. white) Solid The battery has between 5% and 20% charge.

  • Page 34: Hotkeys

    Lenovo B50-50 Hardware Maintenance Manual Hotkeys The hotkeys are located in the function key row of the keyboard. By pressing the appropriate hotkey, you can change system settings instantly. The following describes the function of each hotkey. Table 3. Hotkeys Enables/disables Airplane Mutes/unmutes the sound.

  • Page 35: Fru Replacement Notices

    This section presents notices related to removing and replacing parts. Read this section carefully before replacing any FRU. Screw notices Loose screws can cause a reliability problem. In the Lenovo computer, this problem is addressed with special nylon-coated screws that have the following characteristics: •...

  • Page 36: Removing And Replacing An Fru

    Lenovo B50-50 Hardware Maintenance Manual Removing and replacing an FRU This section presents exploded figures with the instructions to indicate how to remove and replace the FRU. Make sure to observe the following general rules: 1. Do not attempt to service any computer unless you have been trained and certified.

  • Page 37: 1010 Keyboard

    Lenovo B50-50 1010 Keyboard Figure 1. Removal steps of keyboard Remove three screws Step Screw (quantity) Color Torque M2 x 5 mm, Phillips head, nylok-coated (3) Black 1.85±0.15kgf.cm Pull to unsnap the keyboard in the directions shown by arrows...
  • Page 38 Lenovo B50-50 Hardware Maintenance Manual Figure 1. Removal steps of keyboard (continued) Lift up the keyboard and disconnect the connector in the directions shown by arrows . Be careful not to damage the connector. When installing: Make sure that the keyboard connector is attached firmly to...

  • Page 39: 1020 Optical Drive

    Lenovo B50-50 1020 Optical drive For access, remove this FRU: “1010 Keyboard” on page 33 Figure 2. Removal steps of optical drive Remove the screw . Then remove the optical drive in the direction shown by arrow Step Screw (quantity)
  • Page 40 Lenovo B50-50 Hardware Maintenance Manual Figure 2. Removal steps of optical drive (continued) Unsnap to remove the optical drive bezel in the direction shown by arrow...

  • Page 41: 1030 Base Cover

    Lenovo B50-50 1030 Base cover For access, remove these FRUs in order: • “1010 Keyboard” on page 33 • “1020 Optical drive” on page 35 Figure 3. Removal steps of base cover Remove eight screws Step Screw (quantity) Color Torque M2 x 5 mm, Phillips head, nylok-coated (8) Black 1.85±0.15kgf.cm...
  • Page 42 Lenovo B50-50 Hardware Maintenance Manual Figure 3. Removal steps of base cover (continued) Remove the two screws Step Screw (quantity) Color Torque M2 x 8 mm, Phillips head, nylok-coated (2) Black 1.85±0.15kgf.cm Remove the base cover in the direction shown by arrow...

  • Page 43: 1040 Battery Pack

    Lenovo B50-50 1040 Battery pack For access, remove these FRUs in order: • “1010 Keyboard” on page 33 • “1020 Optical drive” on page 35 • “1030 Base cover” on page 37 DANGER • Only use the battery specified in the parts list for your computer. Any other battery could ignite or explode.

  • Page 44: 1050 Hard Disk Drive

    Lenovo B50-50 Hardware Maintenance Manual 1050 Hard disk drive For access, remove these FRUs in order: • “1010 Keyboard” on page 33 • “1020 Optical drive” on page 35 • “1030 Base cover” on page 37 • “1040 Battery pack” on page 39 Attention: •...
  • Page 45 Lenovo B50-50 Figure 5. Removal steps of hard disk drive (continued) Remove four screws and detach the hard disk drive from the metal frame in the direction shown by arrow Step Screw (quantity) Color Torque M3 x 3 mm, Phillips head, nylok-coated (4) Silver 3.0±0.3kgf.cm...

  • Page 46: 1060 Dimm

    Lenovo B50-50 Hardware Maintenance Manual 1060 DIMM For access, remove these FRUs in order: • “1010 Keyboard” on page 33 • “1020 Optical drive” on page 35 • “1030 Base cover” on page 37 • “1040 Battery pack” on page 39 •...

  • Page 47: 1070 Pci Express Mini Card For Wireless Lan/Wan

    Important: The preinstalled WLAN module may only be replaced with a Lenovo approved module in order to comply with FCC and IC regulations. Refer to Table 4. Parts list—Overall on page 63 for Lenovo part numbers for the approved modules.
  • Page 48 Lenovo B50-50 Hardware Maintenance Manual Figure 7. Removal steps of PCI Express Mini Card for wireless LAN/WAN (continued) Remove the card in the direction shown by arrow When installing: Plug the black cable into the jack labeled AUX and the white...

  • Page 49: 1080 Fan And Heat Sink Assembly

    Lenovo B50-50 1080 Fan and heat sink assembly For access, remove these FRUs in order: • “1010 Keyboard” on page 33 • “1020 Optical drive” on page 35 • “1030 Base cover” on page 37 • “1040 Battery pack” on page 39 •...

  • Page 50: 1090 System Board

    Lenovo B50-50 Hardware Maintenance Manual 1090 System board Important notices for handling the system board: When handling the system board, bear the following in mind. • Be careful not to drop the system board on a bench top that has a hard surface, such as metal, wood, or composite.
  • Page 51 Lenovo B50-50 Figure 9. Removal steps of system board (continued) Detach the ODD transfer board connector in the directions shown by arrows , disconnect the EDP connector in the direction shown by arrow then unplug backup battery connector and speaker connector in the direction...

  • Page 52: 1100 Odd Transfer Board

    Lenovo B50-50 Hardware Maintenance Manual 1100 ODD transfer board For access, remove these FRUs in order: • “1010 Keyboard” on page 33 • “1020 Optical drive” on page 35 • “1030 Base cover” on page 37 • “1040 Battery pack” on page 39 •...

  • Page 53: 1110 Lcd Unit And Upper Cover

    Lenovo B50-50 1110 LCD unit and upper cover For access, remove these FRUs in order: • “1010 Keyboard” on page 33 • “1020 Optical drive” on page 35 • “1030 Base cover” on page 37 • “1040 Battery pack” on page 39 •...
  • Page 54 Lenovo B50-50 Hardware Maintenance Manual Figure 11. Removal steps of LCD unit and upper cover (continued) Open the hinges. Remove the upper case from the LCD unit in the direction shown by arrow...
  • Page 55 Lenovo B50-50 Note: Applying labels to the base cover The new base cover FRU is shipped with a kit containing labels of several kinds. When you replace the base cover, you need to apply the following labels: The following labels need to be peeled off from the old base cover, and put on the new base cover.

  • Page 56: 1120 Lcd Front Bezel

    Lenovo B50-50 Hardware Maintenance Manual 1120 LCD front bezel For access, remove these FRUs in order: • “1010 Keyboard” on page 33 • “1020 Optical drive” on page 35 • “1030 Base cover” on page 37 • “1040 Battery pack” on page 39 •...

  • Page 57: 1130 Lcd Panel

    Lenovo B50-50 1130 LCD panel For access, remove these FRUs in order: • “1010 Keyboard” on page 33 • “1020 Optical drive” on page 35 • “1030 Base cover” on page 37 • “1040 Battery pack” on page 39 • “1050 Hard disk drive” on page 40 •...
  • Page 58 Lenovo B50-50 Hardware Maintenance Manual Figure 13. Removal steps of LCD panel (continued) Turn over the LCD module in the direction shown by arrow . Disconnect the connector by arrow to remove the LCD panel. When installing: Make sure that the LCD panel connector is attached firmly.

  • Page 59: 1140 Lcd Hinges

    Lenovo B50-50 1140 LCD hinges For access, remove these FRUs in order: • “1010 Keyboard” on page 33 • “1020 Optical drive” on page 35 • “1030 Base cover” on page 37 • “1040 Battery pack” on page 39 • “1050 Hard disk drive” on page 40 •...

  • Page 60: 1150 Antenna, Lcd Cable, And Integrated Camera

    Lenovo B50-50 Hardware Maintenance Manual 1150 Antenna, LCD cable, and integrated camera For access, remove these FRUs in order: • “1010 Keyboard” on page 33 • “1020 Optical drive” on page 35 • “1030 Base cover” on page 37 • “1040 Battery pack” on page 39 •...
  • Page 61 Lenovo B50-50 Figure 15. Removal steps of Antenna, LCD cable, and integrated camera (continued) Release two antenna cables and one LCD cable from the cable guide. Detach the adhesive of the antenna to remove them in the direction shown by arrows When installing: •...

  • Page 62: Locations

    Lenovo B50-50 Hardware Maintenance Manual Locations Top and front view Integrated camera Wireless LAN antennas Computer display Speakers Built-in microphone Touch pad Power status indicator Battery status indicator Memory card slot...

  • Page 63: Right-Side View

    Lenovo B50-50 Right-side view Optical disc drive Kensington slot...

  • Page 64: Bottom And Left-Side View

    Lenovo B50-50 Hardware Maintenance Manual Bottom and left-side view Power button Combo audio jack USB 3.0 port USB 2.0 port HDMI port RJ-45 port AC power adapter jack Novo button Ventilation slots...

  • Page 65: Parts List

    Attention: Do not attempt to replace an FRU on your own. If an FRU is damaged, contact a Lenovo authorized servicer or a marketing representative for replacement or repair. Only qualified technicians can inspect or repair this product.

  • Page 66: Overall

    Lenovo B50-50 Hardware Maintenance Manual Overall...
  • Page 67 Lenovo B50-50 Table 4. Parts list—Overall FRU no. CRU ID. See “Miscellaneous parts” on page 69 LCD unit (see “LCD FRUs” on page 66.) Keyboard (see “Keyboard” on page 68.) UPPER COVER L80S2 W/SPEAKER 5CB0K85575 RTC BATTERYL5W/CDB 100-15IBD 5B10K25422 ODD BOARD LW/FFC 100-15IBD 5C50K25457 SSD, Samsung MZYLF128HCHP 2.5‘’...
  • Page 68 Lenovo B50-50 Hardware Maintenance Manual Table 4. Parts list—Overall (continued) FRU no. CRU ID. MB L80S2 UMA 3825U100MWIN 5B20K85573 MB L80S2 V2G 3215U100M2GWIN 5B20K85585 MB L80S2 V2G 3215U100MWIN 5B20K85616 MB L80S2 UMA 3215U100M2GWIN 5B20K85612 MB L80S2 V2G I3-5020U100M2GWIN 5B20K85614 MB L80S2 V2G I3-5020U100MWIN...
  • Page 69 Lenovo B50-50 Table 4. Parts list—Overall (continued) FRU no. CRU ID. ODD, HLDS GUC0N 9.0mm Slim Tray Rambo 5DX0F85915 ODD, PLDS DA-8A6SH 9.0mm Slim Tray Rambo 5DX0F86404 ODD, PSN UJ8HC 9.0mm Slim Tray Rambo ODD 5DX0G86787 ODD, TSST SU-228GB 9.0 Rambo ODD...

  • Page 70: Lcd Frus

    Lenovo B50-50 Hardware Maintenance Manual LCD FRUs In Lenovo B50-50, the type of LCD is 15.6-inch high definition (HD).
  • Page 71 Lenovo B50-50 Table 5. Parts list—15.6-in. HD LED FRU no. CRU ID. LCD BEZEL L80S2 5B30K85619 Panel, INX N156BGE-EA2 HD AG S NB 5D10G94547 Panel, LG LP156WHB-TPGB HDT AG F NB 5D10H91341 Panel, BOE NT156WHM-N22 HD AG F NB 5D10G74898 Panel, AUO B156XTN04.6 1A HD AG F NB...

  • Page 72: Keyboard

    Lenovo B50-50 Hardware Maintenance Manual Keyboard Table 6. Parts list—Keyboard Language CRU ID. English 5N20K25394 U.K. English 5N20K25408 Italian 5N20K25395 Spanish 5N20K25452 Turkish 5N20K25430 Thailand 5N20K25416 Portugue 5N20K25399 Latin 5N20K25406 Canada English &French 5N20K25392 Korean 5N20K25448 Tradational Chinese 5N20K25434 Russian...

  • Page 73: Miscellaneous Parts

    Lenovo B50-50 Miscellaneous parts Table 7. Parts list—Miscellaneous parts CRU ID. System miscellaneous parts: • 5B40K25389 (a) ODD BRACKET L 100-15IBD 5B30K25417 • (b) ODD BEZEL L 100-15IBD 5B40K41693 • (c) HDDBRACKET L100IBD 7mm 5B40K41694 • (c) HDDBRACKET L100IBD 9.5 mm Note: Italicized letters in parentheses are references to the exploded view in “Overall”...

  • Page 74: Ac Adapters

    Lenovo B50-50 Hardware Maintenance Manual AC adapters Table 8. Parts list—AC adapters CRU ID. Adapter, Delta ADP-45DW AA 20V2.25A adapter 5A10H43620 Adapter, Delta ADP-45DW JA 20V2.25A adapter 5A10H43623 Adapter, Delta ADP-45DW BA 20V2.25A adapter 5A10H43630 Adapter, Delta ADP-45DW DA 20V2.25A adapter 5A10H43621 Adapter, Delta ADP-45DW HA 20V2.25A adapter...

  • Page 75: Screws

    Lenovo B50-50 Screws Table 9. Parts list—Screws CRU ID. SCREW L MM1.98D3LK4.5DNINL0.4T 5S10K25435 SCREW L MM2D5LK4.6D ZKNL CR3+ 5S10K25418 ViennaSCREW M M3.0D3.0L K 4.0D0.4T 90204955 Screw L Y700-15ACZ Hinge 3 5S10K26863 Screw L Rescuer 14 2.0D 5.5D ZK NL 5S10J46651...

  • Page 76: Power Cords

    Lenovo B50-50 Hardware Maintenance Manual Power cords A Lenovo power cord for a specific country or region is usually available only in that country or region: Table 10. Parts list—3-pin power cords Region CRU ID. 145000600 • LINETEK PC323+RVV300/300+LS15 1m...
  • Page 77 Lenovo B50-50 Table 10. Parts list—3-pin power cords (continued) Region CRU ID. 145000561 • Longwell LP-61L+H03VV-F+LS-18 1m India 145000560 • Longwell LP-67+BIS+LS-18 1m Italy 145000559 • Longwell LP-22+H03VV-F+LS-18 1m Korea 145000558 • Longwell LP-486+KTLH03VV-F+LS-5 1m Australia 145000557 • Longwell LP-23A+LFC-3R+LS-18 1m...
  • Page 78 Lenovo B50-50 Hardware Maintenance Manual Table 10. Parts list—3-pin power cords (continued) Region CRU ID. Denmark 145500014 • lux 0048+H03VV-F 0.75/3C+0011 1m Switzerland 145500013 • lux 0027+H03VV-F 0.75/3C+0011 1m Brazil 145500011 • lux 0034+H03VV-F 0.75/3C+0011 1m Israel 145500012 • lux 0041+H03VV-F 0.75/3C+0011 1m 145500002 •...

  • Page 79: Notices

    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.

  • Page 80: Trademarks

    Lenovo B50-50 Hardware Maintenance Manual Trademarks The following terms are trademarks or registered trademarks of Lenovo in the United States, other countries, or both. Lenovo OneKey Microsoft and Windows are trademarks of Microsoft Corporation in the United States, other countries, or both.

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