Lenovo B550 Hardware Maintenance Manual
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Lenovo B550 Hardware Maintenance Manual

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  • Page 1: Lenovo B550

    Lenovo B550 Hardware Maintenance Manual...
  • Page 2 First Edition (March 2010) © Copyright Lenovo 2010. All rights reserved. LENOVO products, data, computer software, and services have been developed exclusively at private expense and are sold to governmental entities as commercial items as defined by 48 C.F.R. 2.101 with limited and restricted rights to use, reproduction and disclosure.

  • Page 3: Table Of Contents

    Supervisor password ........24 Power management ........25 Screen blank mode ...........25 Sleep (standby) mode ........25 Hibernation mode ..........26 Lenovo B550 ..........27 Specifications ..........27 Status indicators ........... 29 Fn key combinations........31 FRU replacement notices ......32 Screw notices ..........32 Removing and replacing an FRU ....

  • Page 4: About This Manual

    The product-specific section includes service, reference, and product-specific parts information. Important: 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...

  • 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 B550 computer: • “General safety” on page 2 • “Electrical safety” on page 3 • “Safety inspection guide” on page 5 •...

  • Page 6: General Safety

    Lenovo B550 Hardware Maintenance Manual General safety Follow these rules below 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.
  • Page 8 Lenovo B550 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 B550 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 B550 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 B550 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. Si le panneau d’affichage à...
  • Page 16 Lenovo B550 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 B550 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://consumersupport.lenovo.com/. 2. Enter a serial number or select a product or use Lenovo smart downloading. 3. Select the BIOS/Driver/Applications and download. 4. Follow the directions on the screen and install the necessary software.

  • Page 21: Strategy For Replacing A Hard Disk Drive

    Important service information Use the following strategy to prevent unnecessary expense for replacing and servicing FRUs: • If you are instructed to replace an FRU, but the replacement does not solve the problem, reinstall the original FRU before you continue. •...

  • Page 22: Important Information About Replacing Rohs Compliant Frus

    FRU part numbers. Lenovo plans to transit to RoHS compliance well before the implementation date and expects its suppliers to be ready to support Lenovo’s requirements and schedule in the EU. Products sold in 2005 and 2006 will contain some RoHS compliant FRUs.

  • 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: • Only certified trained personnel can service the computer.

  • Page 24: What To Do First

    Lenovo B550 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

    Replace the system board. • If the problem continues, go to “Lenovo B550” on page 27. Note: Noise from the AC adapter does not always indicate a defect. Checking operational charging To check whether the battery charges properly during operation, use a discharged battery pack or a battery pack that has less than 50% of the total power remaining when installed in the computer.

  • Page 26: Checking The Battery Pack

    Lenovo B550 Hardware Maintenance Manual Perform operational charging. If the battery status indicator or icon does not light on, remove the battery pack and let it return to room temperature. Reinstall the battery pack. If the charge indicator or icon is still off, replace the battery pack.

  • Page 27: Related Service Information

    In order to save application files and the initial backed up files of the system, the hard disk in a Lenovo computer includes a hidden partition when it is shipped. If you need to restore the system to the point of your first boot up, just enter Lenovo OneKey Rescue System and run Restore to factory default.

  • Page 28: Passwords

    The recovery process might take up to 2 hours. Passwords As many as two passwords may be needed for any Lenovo computer: the power-on password (POP) 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 mode If the time set on the “Turn off monitor” timer in the operating system expires, the LCD backlight turns off.

  • Page 30: Hibernation Mode

    Lenovo B550 Hardware Maintenance Manual Hibernation mode In hibernation mode, the following occurs: • The system status, RAM, VRAM, and setup data are stored on the hard disk. • The system is powered off. To cause the computer to enter hibernation mode, follow the steps below: •...

  • Page 31: Lenovo B550

    • “FRU replacement notices” on page 32 • “Removing and replacing an FRU” on page 33 • “Locations” on page 71 • “Parts list” on page 73 Specifications The following table lists the specifications of the Lenovo B550 : Table 1. Specifications Feature Description Processor •...
  • Page 32 Lenovo B550 Hardware Maintenance Manual Table 1. Specifications (continued) Feature Description Keyboard • 6-row Lenovo Keyboard Touch pad • Yes with two buttons Integrated • 0.3M camera Battery • 53Wh/57Wh/48Wh, 6 cell Li-ion Battery or 35Wh, 4 cell Li-ion Battery AC adapter •...

  • Page 33: Status Indicators

    Lenovo B550 Status indicators The system status indicators below show the computer status: Table 2. Status indicators Indicator Meaning White: Caps Lock mode is enabled. You can enter all Caps lock alphabetic characters (A-Z) in uppercase without pressing the Shift key. To enable or disable Caps Lock mode, press the CapsLk key.
  • Page 34 Lenovo B550 Hardware Maintenance Manual Table 2. Status indicators (continued) Indicator Meaning Power on White: System is enabled. Blinking white: System is in sleep mode. Off: System is in hibernate mode or shut down. Blinking amber: (500ms off/ 1s on)

  • Page 35: Fn Key Combinations

    Lenovo B550 Fn key combinations The following table shows the function of each combination of Fn with a function key. Table 4. Fn key combinations Key combination Description Fn + F1: Enter sleep mode. Fn + F2: Turn on/off the backlight of the LCD screen.

  • Page 36: 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 37: Removing And Replacing An Fru

    Lenovo B550 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 38: 1010 Battery Pack

    Lenovo B550 Hardware Maintenance Manual 1010 Battery pack DANGER Only use the battery specified in the parts list for your computer. Any other battery could ignite or explode. Figure 1. Removal steps of battery pack Unlock the battery release lever .

  • Page 39: 1020 Hard Disk Drive (Hdd) Slot Cover And Hdd

    Lenovo B550 1020 Hard disk drive (HDD) slot cover and HDD For access, remove this FRU: • “1010 Battery pack” on page 34 Attention: • Do not drop the hard disk drive or apply any physical shock to it. The hard disk drive is sensitive to physical shock. Improper handling can cause damages and permanent loss of data.
  • Page 40 Lenovo B550 Hardware Maintenance Manual Figure 2. Removal steps of HDD slot cover and HDD (continued) Pull the tab up in the direction shown by arrows to remove the hard disk drive from the slot. When installing: Make sure that the HDD connector is attached firmly.

  • Page 41: 1030 Memory/Wireless Module/Cpu (Central Processing Unit) Compartment Cover

    Lenovo B550 1030 Memory/Wireless module/CPU (central processing unit) compartment cover For access, remove this FRU: • “1010 Battery pack” on page 34 Figure 3. Removal steps of Memory/Wireless module/CPU compartment cover Note: Loosen the screws , but do not remove them.

  • Page 42: 1040 Optical Drive

    Lenovo B550 Hardware Maintenance Manual 1040 Optical drive For access, remove these FRUs in order: • “1010 Battery pack” on page 34 • “1030 Memory/Wireless module/CPU (central processing unit) compartment cover” on page 37 Figure 4. Removal steps of optical drive...

  • Page 43: 1050 Dimm

    Lenovo B550 1050 DIMM For access, remove these FRUs in order: • “1010 Battery pack” on page 34 • “1030 Memory/Wireless module/CPU (central processing unit) compartment cover” on page 37 Figure 5. Removal steps of DIMM Release the two latches on both edges of the socket at the same time in the...

  • Page 44: 1060 Fan Assembly And Heat Sink Assembly

    Lenovo B550 Hardware Maintenance Manual 1060 Fan assembly and Heat Sink assembly For access, remove these FRUs in order: • “1010 Battery pack” on page 34 • “1030 Memory/Wireless module/CPU (central processing unit) compartment cover” on page 37 Figure 6. Removal steps of fan assembly and heat sink assembly...
  • Page 45 Lenovo B550 Figure 6. Removal steps of fan assembly and heat sink assembly (continued) Lift the fan assembly and heat sink assembly in the direction shown by arrow Be careful not to damage the connector. Attention: Do not handle the heat sink assembly roughly. Improper handling...
  • Page 46 Lenovo B550 Hardware Maintenance Manual Figure 6. Removal steps of fan assembly and heat sink assembly (continued) When installing: • Before you attach the fan assembly to the computer, apply thermal grease, at an amount of 0.2 grams, to the part shown in the figure above.

  • Page 47: 1070 Cpu

    Lenovo B550 1070 CPU For access, remove these FRUs in order: • “1010 Battery pack” on page 34 • “1030 Memory/Wireless module/CPU (central processing unit) compartment cover” on page 37 • “1060 Fan assembly and Heat Sink assembly” on page 40 Attention: CPU is extremely sensitive.

  • Page 48: 1080 Pci Express Mini Card For Wireless Lan/Wan

    Lenovo B550 Hardware Maintenance Manual 1080 PCI Express Mini Card for wireless LAN/WAN For access, remove these FRUs in order: • “1010 Battery pack” on page 34 • “1030 Memory/Wireless module/CPU (central processing unit) compartment cover” on page 37 Figure 8. Removal steps of PCI Express Mini Card for wireless LAN/WAN...
  • Page 49 Lenovo B550 Figure 8. Removal steps of PCI Express Mini Card for wireless LAN/WAN (continued) Remove the wireless LAN card in the direction shown by arrow When installing: • Plug the black cable into the jack labeled MAIN, and the white cable into the...

  • Page 50: 1090 Keyboard Cover And Power Board

    Lenovo B550 Hardware Maintenance Manual 1090 Keyboard cover and power board For access, remove this FRU: • “1010 Battery pack” on page 34 Note: Power board is attached to the keyboard cover. Figure 9. Removal steps of Keyboard cover and power board...
  • Page 51 Lenovo B550 Figure 9. Removal steps of Keyboard cover and power board (continued) Open the LCD at an angle about 120°. Lift the keyboard cover with fingers in the direction shown by arrows...
  • Page 52 Lenovo B550 Hardware Maintenance Manual Figure 9. Removal steps of Keyboard cover and power board (continued) Turn the keyboard cover over in the direction shown by arrow , disconnect the FPC connector in the direction shown by arrows , and then remove the keyboard cover.

  • Page 53: 1100 Keyboard

    Lenovo B550 1100 Keyboard For access, remove these FRUs in order: • “1010 Battery pack” on page 34 • “1090 Keyboard cover and power board” on page 46 Figure 10. Removal steps of keyboard Remove the screws Step Screw (quantity)
  • Page 54 Lenovo B550 Hardware Maintenance Manual Figure 10. Removal steps of keyboard (continued) Lift the keyboard a little , unlock the FPC connector and then detach the connector in the direction shown by arrows When installing: Make sure that the FPC connector is attached firmly and then...

  • Page 55: 1110 Lcd Unit

    Lenovo B550 1110 LCD unit For access, remove these FRUs in order: • “1010 Battery pack” on page 34 • “1030 Memory/Wireless module/CPU (central processing unit) compartment cover” on page 37 • “1080 PCI Express Mini Card for wireless LAN/WAN” on page 44 •...
  • Page 56 Lenovo B550 Hardware Maintenance Manual Figure 11. Removal steps of LCD unit (continued) Pull out the LCD cable and the two antenna cables from the guide hole and release them from the cable guides in the direction shown by arrows .
  • Page 57 Lenovo B550 Figure 11. Removal steps of LCD unit (continued) Remove two screws Step Screw (quantity) Color Torque M2.5 × 8 mm, flat-head, nylon-coated (2) Black 2.0~2.5 kgf·cm...
  • Page 58 Lenovo B550 Hardware Maintenance Manual Figure 11. Removal steps of LCD unit (continued) Remove the LCD unit in the direction shown by arrows...

  • Page 59: 1120 Keyboard Bezel

    Lenovo B550 1120 Keyboard bezel For access, remove these FRUs in order: • “1010 Battery pack” on page 34 • “1030 Memory/Wireless module/CPU (central processing unit) compartment cover” on page 37 • “1040 Optical drive” on page 38 • “1080 PCI Express Mini Card for wireless LAN/WAN” on page 44 •...
  • Page 60 Lenovo B550 Hardware Maintenance Manual Figure 12. Removal steps of keyboard bezel (continued) Remove three screws and one screw Step Screw (quantity) Color Torque M2.5 × 6 mm, flat-head, nylon-coated (3) Black 2.0~2.5 kgf·cm M2.0 × 3 mm, flat-head, nylon-coated (1) Silver 2.0~2.5 kgf·cm...
  • Page 61 Lenovo B550 Figure 12. Removal steps of keyboard bezel (continued) Detach two FPC connectors in the direction shown by arrows When installing: Make sure that all the FPC connectors are attached firmly.
  • Page 62 Lenovo B550 Hardware Maintenance Manual Figure 12. Removal steps of keyboard bezel (continued) Remove the keyboard bezel in the direction shown by arrow...

  • Page 63: 1130 System Board

    Lenovo B550 1130 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 64 Lenovo B550 Hardware Maintenance Manual Figure 13. Removal steps of system board (continued) Unplug two connectors (bluetooth connector and speakers connector) in the direction shown by arrow , and remove two screws When installing: Make sure that the connectors are attached firmly.
  • Page 65 Lenovo B550 Figure 13. Removal steps of system board (continued) Remove the system board in the direction shown by arrow When installing: When attaching the system board to the base cover, adjust the placement of the wireless radio switch as shown in...

  • Page 66: 1140 Bluetooth Daughter Card, Speakers And Base Cover

    Lenovo B550 Hardware Maintenance Manual 1140 Bluetooth daughter card, speakers and base cover For access, remove these FRUs in order: • “1010 Battery pack” on page 34 • “1020 Hard disk drive (HDD) slot cover and HDD” on page 35 •...
  • Page 67 Lenovo B550 Figure 14. Removal steps of Bluetooth daughter card, speakers and base cover (continued) Remove four screws , release the speaker cables from the cable guides, and then remove the speakers Step Screw (quantity) Color Torque M2.5 × 5.7 mm, flat-head, nylon-coated (4) Black 1.5~2.0 kgf·cm...
  • Page 68 Lenovo B550 Hardware Maintenance Manual Figure 14. Removal steps of Bluetooth daughter card, speakers and base cover (continued) Remove the power assembly in the direction shown by arrows When installing: Make sure that the power connector is attached firmly.
  • Page 69 Lenovo B550 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 label: The following labels need to be peeled off from the old base cover, and need to be put on the new base cover.

  • Page 70: 1150 Lcd Front Bezel

    Lenovo B550 Hardware Maintenance Manual 1150 LCD front bezel For access, remove these FRUs in order: • “1010 Battery pack” on page 34 • “1030 Memory/Wireless module/CPU (central processing unit) compartment cover” on page 37 • “1080 PCI Express Mini Card for wireless LAN/WAN” on page 44 •...

  • Page 71: 1160 Lcd Panel And Hinges

    Lenovo B550 1160 LCD panel and hinges For access, remove these FRUs in order: • “1010 Battery pack” on page 34 • “1030 Memory/Wireless module/CPU (central processing unit) compartment cover” on page 37 • “1080 PCI Express Mini Card for wireless LAN/WAN” on page 44 •...
  • Page 72 Lenovo B550 Hardware Maintenance Manual Figure 16. Removal steps of LCD panel and hinges (continued) Remove the LCD panel in the direction shown by arrow Note: The LCD circuit is attached to the LCD panel, and is connected with the LCD cable by an FPC connector.

  • Page 73: 1170 Integrated Camera

    Lenovo B550 1170 Integrated camera For access, remove these FRUs in order: • “1010 Battery pack” on page 34 • “1030 Memory/Wireless module/CPU (central processing unit) compartment cover” on page 37 • “1080 PCI Express Mini Card for wireless LAN/WAN” on page 44 •...

  • Page 74: 1180 Antenna Assembly And Lcd Cover

    Lenovo B550 Hardware Maintenance Manual 1180 Antenna assembly and LCD cover For access, remove these FRUs in order: • “1010 Battery pack” on page 34 • “1030 Memory/Wireless module/CPU (central processing unit) compartment cover” on page 37 • “1080 PCI Express Mini Card for wireless LAN/WAN” on page 44 •...

  • Page 75: Locations

    Lenovo B550 Locations Front view Integrated camera Array microphones (bulit-in) Wireless LAN antennas System status indicators Note: For the description of each indicator, see “Status indicators” on page 29. OneKey Rescue System button Power button Built-in microphone Stereo speakers Touch pad...

  • Page 76: Right-Side View

    Lenovo B550 Hardware Maintenance Manual Right-side view USB port Optical drive AC power adapter jack Bottom and Left-side view Battery latch - manual Battery pack Battery latch - spring loaded Memory/Wireless module/CPU compartment Kensington slot Fan louvers RJ-45 port VGA port...

  • Page 77: Parts List

    Lenovo B550 Parts list This section presents the following service parts: • “Overall” on page 74 • “LCD FRUs” on page 78 • “Keyboard” on page 80 • “Miscellaneous parts” on page 82 • “AC adapters” on page 83 • “Power cords” on page 84 Notes: •...

  • Page 78: Overall

    Lenovo B550 Hardware Maintenance Manual Overall...
  • Page 79 Lenovo B550 Table 5. Parts list—Overall No. FRU FRU no. LCD unit (see “LCD FRUs” on page 78.) NIWAB STRIP COVER-TEXTURE 15.6 71ER 2038201 NIWAB POWER BOARD W/FFC LOWEND 15.6 71ER 2138201 Keyboard (see “Keyboard” on page 80.) Touch Pad, ALPS,KGDFF0014A KGDFF0014 NIWAB LOGIC UPPER ASSY-TEXTURE 15.6 71ER...
  • Page 80 Lenovo B550 Hardware Maintenance Manual Table 5. Parts list—Overall (continued) No. FRU FRU no. DDRIII 1066 1GB,Elpida,EBJ10UE8BDS0-AE-F (Rev D / 11011281 1Gb/65nm) DDRIII 1066 1GB, Micron, MT8JSF12864HZ-1G1F1 11010924 (V58B/1Gb/68nm) DDRIII 1066 1GB, Hynix, HMT112S6BFR6C-G7 N0 11010904 (Orion/1Gb/54nm) DDRIII 1066 2GB, Samsung,M471B5673FH0-CF8...
  • Page 81 Lenovo B550 Table 5. Parts list—Overall (continued) No. FRU FRU no. Hard disk drive, 250G 5400rpm SATA, Seagate ST9250315AS 16004186 250G 9NB HDD Hard disk drive, 250G 5400rpm SATA, Toshiba MK2565GSX 16004641 5400RPM 250G HDD Hard disk drive, 320G 5400rpm SATA, WD3200BEVT-...

  • Page 82: Lcd Frus

    Lenovo B550 Hardware Maintenance Manual LCD FRUs In Lenovo B550, there are following types of LCDs. • “15.6-in. HD TFT”...
  • Page 83 Lenovo B550 15.6-in. HD TFT Table 6. Parts list—15.6-in. HD TFT No. FRU FRU no. NIWAB LCD BEZEL W/CMOS-TEXTURE 15.6 31042983 KIWA7 LCD BRACKET L&R 31038408 LCD panel, 15.6 HD LED Panel,AUO,B156XW02 V2 18003797 LCD panel, 15.6 HD LED Panel,LGD,LP156WH2-TLAA 18003819 LCD panel, 15.6 HD LED Panel,SEC,LTN156AT05-J01...

  • Page 84: Keyboard

    Lenovo B550 Hardware Maintenance Manual Keyboard Table 7. Parts list—Keyboard Language English 25008409 U.K. English 25008420 Italian 25008611 Spanish 25008510 Turkish 25008607 Thai 25008408 Portuguese 25008509 Latin 25008603 Canadian 25008602 Korean 25008599 Traditional Chinese 25008407 Russian 25008405 French 25008404 German...
  • Page 85 New KB, add NM KB Chicony (continued) Brazilian 25008511 Czech 25008665 Danish 25008659 Dutch 25008655 Greek 25008650 Hebrew 25008647 Hungarian 25008642 Norwegian 25008638 Swedish 25008634 Belgian 25008631 Icelandic 25008627 Slovak 25008624 Slovenian 25008620 Swiss 25008617 International English 25008424 B550 Low Cost KB Dafon...

  • Page 86: Miscellaneous Parts

    Lenovo B550 Hardware Maintenance Manual Miscellaneous parts Table 8. Parts list—Miscellaneous parts System miscellaneous parts: • (a) KIWA7 T/P BRACKET EC07Q000500 31038373 • (b) KIWA7 HDD BRACKET AM040000300 31038374 • (c) KIWA7 ODD BRACKET EC02C000D00 31038393 • (d) NIWAB LCD SCREW RUBBER-TEXTURE 31042987 •...

  • Page 87: Ac Adapters

    Lenovo B550 AC adapters Table 9. Parts list—3-pin AC adapters 65W, Delta ADP-65KH B adapter 36001646 65W, Liteon PA-1650-56LC adapter 36001651 65W, Brazil PA-1650-52LB adapter 36001714 65W, Chicony CPA-A065 20V3.25A adapter 36001792 90W, Delta ADP-90DD B adapter 36001647 90W, Liteon PA-1900-56LC adapter 36001652 90W, Chicony CPA-A090 20V4.5A adapter...

  • Page 88: Power Cords

    Lenovo B550 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 145000602 • SSD YD-118-1+IEC53RVV+SSD-3-2B-1 1m 145000600 • LINETEK PC323+RVV300/300+LS15 1m...
  • Page 89 Lenovo B550 Table 10. Parts list—3-pin power cords (continued) Region Switzerland 145000565 • Longwell LP-37+H03VV-F+LS-18 1m Brazil 145000564 • Longwell LP-46+H03VV-F+LS-18 1m Israel 145000563 • Longwell LP-41+H03VV-F+LS-18 1m 145000562 • Longwell LP-30B+SPT-2 18AWG+LS-18 1m 145000633 • Longwell LP-30B+SPT-2+LS-18 1.5m Longwell 145000561 •...

  • Page 90: 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 91: Trademarks

    Actual results may vary. Users of this document should verify the applicable data for their specific environment. Trademarks The following terms are either registered trademarks or trademarks of Lenovo in the United States and/or other countries: ® Lenovo ®...

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