• The product-specific section includes service, reference, and product-specific parts information. Important: • This manual is intended only for trained service technicians who are familiar with Lenovo products. Use this manual to troubleshoot problems effectively. • Before servicing a Lenovo product, be sure to read all the information under Chapter 1 “Safety information”...
Electrical safety Observe the following rules when working on electrical equipment. Important: Use only approved tools and test equipment. Some hand tools have handles covered with a soft material that does not insulate you when working with live electrical currents. Many customers have, near their equipment, rubber floor mats that contain small conductive fibers to decrease electrostatic discharges.
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.
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. •...
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 BIOS is installed to the system board before completing the service action. To download software fixes, drivers, and BIOS, do the following: 1. Go to http://www.lenovo.com/support. 2. Click Download Drivers & Software. The Web site offers three options to begin your search: • Search by product number •...
Note: RoHS and non-RoHS FRU part numbers with the same fit and function are identified by the unique FRU part numbers. Lenovo plans to transit to RoHS compliance before the implementation date and expects its suppliers to be ready to meet Lenovo’s requirements and schedule in the European Union. Products sold between 2005 and 2006 might contain some RoHS compliant FRUs.
3. If the voltage is not correct, replace the ac power adapter. 4. If the voltage is acceptable, do the following: • Replace the system board. • If the problem persists, go to Chapter 5 “Lenovo B480” on page 37. Hardware Maintenance Manual...
• Windows 7: Launch the Power Manager program and click the Battery tab. • Windows 8: – Press the recovery button to launch the Lenovo Solution Center program, and then click Battery. – Press Fn+Esc to launch the Lenovo Experience program, and then click Battery Health.
If any of these passwords has been set, a prompt for it will be displayed on the screen whenever the computer is turned on. The computer does not start until the password is entered. Note: If only a supervisor password is set, the password prompt will not be displayed when the operating system is started.
Also, when the time set on the resume timer elapses, the computer automatically returns from sleep mode and resumes operation. Note: The computer does not accept any input immediately after it enters sleep mode. Wait a few seconds before taking any action to reenter operation mode. Hibernation mode In hibernation mode, the following occurs: •...
• “Fn key combinations” on page 39 Specifications This topic lists the physical features for the Lenovo B480 models. Processor • To view the processor information of your computer, do either of the following: – Windows 7: Click Start, right-click Computer. Then click Properties.
• HDMI port • External monitor connector • 4-in-1 digital media card reader slot Optical drive • 12.7 mm Rambo optical drive Wireless features • Integrated wireless LAN • 100/1000 Mbps Ethernet communication Security feature • Fingerprint reader Status indicators This chapter presents the system status indicators that show the status of the computer.
Skip to the previous track. Fn+F12 Skip to the next track. Fn+PgUp Enable or disable the scroll lock function. Fn+PrtSc Activate the system request. Fn+Home Activate the pause function. Fn+End Activate the break function. Fn+PgDn Activate the insert function. Chapter 5 Lenovo B480...
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Table 2. Function key combinations (continued) Key combination Description Fn + up/down arrow Increase or decrease the display brightness level. Fn + left/right arrow Increase or decrease the sound volume. 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/UserManuals.
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• Torque driver If you have a torque screwdriver, refer to the Torque column in the screw information table for each step. • Make sure 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.
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/UserManuals.
1010 Battery pack Removal steps of battery pack DANGER Use only the battery specified in the parts list for your computer. Any other battery could ignite or explode. Unlock the spring-loaded battery latch . Holding the manual battery latch in the unlocked position, remove the battery pack in the direction shown by the arrow When installing: Install the battery pack in the slot.
Removal steps of bottom slot cover Remove the screws , and then remove the cover Step Screw (quantity) Color Torque Black 1.85 kgf-cm M2 × 3 mm, flat-head, nylon-coated (2) 1030 Optical drive For access, remove these FRUs in order: •...
Insert a screwdriver into the screw hole and push the optical drive in the direction shown by the arrow Then remove the optical drive. Removal steps of optical drive bezel and optical drive bracket Remove the screws and then remove the optical drive bracket. Step Screw (quantity) Color...
Removal steps of memory modules Release the two latches on both edges of the socket at the same time in the direction shown by the arrows , and then unplug the memory module in the direction shown by the arrow Note: If only one memory module is used on the computer you are servicing, the card must be installed in SLOT-0 ( : lower slot), but not in SLOT-1 (...
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Removal steps of hard disk drive assembly Remove the screw , then pull the tab in the direction shown by the arrow Step Screw (quantity) Color Torque M2 × 3 mm, flat-head, nylon-coated (1) Black 1.85 kgf-cm Remove the hard disk drive from the slot When installing: Make sure that the hard disk drive connector is attached firmly.
Remove the hard disk drive bracket as shown by the arrow 1060 PCI Express Mini Card for wireless LAN For access, remove these FRUs in order: • “1010 Battery pack” on page 44 • “1020 Bottom slot cover” on page 44 Removal steps of PCI Express Mini Card for wireless LAN In steps , disconnect the cables from the card using the removal tool antenna RF connector (P/N: 08K7159)
Remove the card in the direction shown by the arrow When installing: Plug the black cable (MAIN) into the jack labeled A, and the white cable (AUX) into the jack labeled B on the card. 1070 mSATA solid-state drive For access, remove these FRUs in order: •...
Remove the mSATA solid-state drive 1080 Backup battery For access, remove these FRUs in order: • “1010 Battery pack” on page 44 • “1020 Bottom slot cover” on page 44 Removal steps of backup battery DANGER Use only the battery specified in the parts list for your computer. Any other battery could ignite or explode.
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Removal steps of keyboard Remove the screws When installing: Make sure that the screws have been fastened to secure the keyboard. Step Screw (quantity) Color Torque Black M2.5 × 8 mm, flat-head, nylon-coated (3) 4.0 kgf-cm Carefully lift the keyboard until you can see how it’s connected. Hold the keyboard above the computer, and then detach the keyboard connector.
1100 Keyboard bezel For access, remove these FRUs in order: • “1010 Battery pack” on page 44 • “1020 Bottom slot cover” on page 44 • “1030 Optical drive” on page 45 • “1090 Keyboard” on page 51 Removal steps of keyboard bezel Remove the screws that secure the keyboard bezel.
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Remove the screw Torque Step Screw (quantity) Color M2 × 6 mm, flat-head, nylon-coated (1) Black 1.85 kgf-cm Detach the connectors. When installing: Make sure that all the connectors are attached firmly. Hardware Maintenance Manual...
Remove the keyboard bezel. 1110 Fingerprint board and LED board For access, remove these FRUs in order: • “1010 Battery pack” on page 44 • “1020 Bottom slot cover” on page 44 • “1030 Optical drive” on page 45 • “1090 Keyboard”...
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Removal steps of LED board Peel off the mylar tape . Then remove the LED board Hardware Maintenance Manual...
Removal steps of fingerprint board Remove the screw and the fingerprint board bracket . Then remove the fingerprint board Step Screw (quantity) Color Torque M2 × 3 mm, flat-head, nylon-coated (1) Silver 1.85 kgf-cm 1120 Power board For access, remove these FRUs in order: •...
1130 Microphone assembly For access, remove these FRUs in order: • “1010 Battery pack” on page 44 • “1020 Bottom slot cover” on page 44 • “1030 Optical drive” on page 45 • “1090 Keyboard” on page 51 • “1100 Keyboard bezel” on page 53 Removal steps of microphone assembly Detach the connector , and then remove the microphone assembly in the direction shown by the arrow...
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Removal steps of I/O board Remove the screws , and then detach the cable. Step Screw (quantity) Color Torque Black M2 × 6 mm, flat-head, nylon-coated (2) 1.85 kgf-cm When installing: Make sure that the cable is attached firmly to the system board. Chapter 7 Removing and replacing a FRU...
Remove the I/O board 1150 System board assembly and USB 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. •...
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Removal steps of system board assembly and USB board Remove the screws , and then detach the connectors as shown in the following illustration. Step Screw (quantity) Color Torque M2 × 6 mm, flat-head, nylon-coated (2) Black 1.85 kgf-cm When installing: Make sure that all the connectors are attached firmly. Remove the system board in the direction shown by the arrow .
Remove the USB board as shown in the following illustration. 1160 Thermal module For access, remove these FRUs in order: • “1010 Battery pack” on page 44 • “1020 Bottom slot cover” on page 44 • “1030 Optical drive” on page 45 •...
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Loosen the screws Lift the fan assembly in the direction shown by the arrow Note: Be careful not to damage the connector. Chapter 7 Removing and replacing a FRU...
When installing: Before you attach the thermal module to the computer, apply thermal grease, at an amount of 0.2 grams, on the part marked as shown in the following illustration. Either too much or too less application of grease can cause a thermal problem due to imperfect contact with a component. For models with a discrete thermal module For models with an integrated thermal module 1170 CPU...
• “1100 Keyboard bezel” on page 53 • “1130 Microphone assembly” on page 58 • “1150 System board assembly and USB board” on page 60 • “1160 Thermal module” on page 62 Attention: The CPU is extremely sensitive. When you service the CPU, avoid any kind of rough handling. Removal steps of CPU Rotate the head of the screw in the direction shown by the arrow to release the lock, then remove the...
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• “1140 I/O board” on page 58 • “1150 System board assembly and USB board” on page 60 Removal steps of LCD unit Release the antenna cables from the cable guides. Then remove the screws Step Screw (quantity) Color Torque M2.5 ×...
Remove the LCD unit in the direction shown by the arrow 1190 Speaker assembly For access, remove these FRUs in order: • “1010 Battery pack” on page 44 • “1020 Bottom slot cover” on page 44 • “1030 Optical drive” on page 45 •...
Removal steps of speaker assembly Remove the screws . Then remove the speaker assembly Torque Step Screw (quantity) Color M2.5 × 5.7 mm, flat-head, nylon-coated (4) Black 4.0 kgf-cm 1200 DC-in connector and base cover For access, remove these FRUs in order: •...
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Removal steps of DC-in connector and base cover Remove the screws , and then remove the DC-in connector in the direction shown by the arrow Step Screw (quantity) Color Torque M2 × 3 mm, flat-head, nylon-coated (2) Black 1.85 kgf-cm Applying labels to the base cover The new base cover is shipped with a kit containing labels of several kinds.
Indonesia D side label Israel label WWAN IMEI barcode label Israel label Brazil Bluetooth label or Bluetooth label for United Malaysia SIRIM label States/Canade/Taiwan China label, KCC label, or MAC label Vodafone label Brazil WLAN label or WLAN label for United Rating label I States/Canade/Taiwan PPT label...
Removal steps of LCD front bezel Remove the screws Step Screw (quantity) Color Torque M2 × 3.5 mm, flat-head, nylon-coated (2) Black 1.85 kgf-cm Remove the LCD front bezel in the direction shown by the arrows When installing: Make sure that all the latches are attached firmly. Then secure the bezel with the screws. 2020 Integrated camera For access, remove these FRUs in order: •...
Removal steps of integrated camera Remove the integrated camera from the LCD cover as shown in the following illustration. Note: The integrated camera is stuck on the top center of the LCD cover. When installing: Stick the integrated camera to the top center of the LCD cover and adjust the placement to make sure that the connector is attached firmly.
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Removal steps of LCD panel and LCD cable Remove the screws . Then remove the LCD panel in the direction shown by the arrow Torque Step Screw (quantity) Color M2 × 3.5 mm, flat-head, nylon-coated (4) White 1.85 kgf-cm Remove the LCD cable. When installing: Make sure that the connector is attached firmly.
Removal steps of hinges Remove the screws . Then remove the hinges Torque Step Screw (quantity) Color M2 × 3.5 mm, flat-head, nylon-coated (4) White 1.85 kgf-cm 2040 Antenna assembly and LCD rear cover For access, remove these FRUs in order: •...
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Removal steps of antenna assembly and LCD rear cover Release the antenna cables from the cable guides of the LCD rear cover assembly and from the hinges in the direction shown by the arrows Cable routing: Route the antenna cables along the cable guides and secure the antenna boards with adhesive tapes.
Chapter 8. Locations This chapter presents the locations of the Lenovo B480 hardware components. Front view Figure 1. Lenovo B480 front view Integrated camera (on some models) Touch pad Wireless module antennas Power and battery indicator Status indicators Power button...
— ac power adapter (see “ac power adapters” on page 88) LCD FRUs In Lenovo B480 models, the type of LCD is 14-inch high definition (HD) TFT LCD (Table 4 “Parts list - LCD” on page 84). Chapter 9 Parts list...
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Table 4. Parts list - LCD No. FRU FRU No. CRU ID 90200762 LB48 LCD Bezel W/Camera Hole LB48 Hinge R+L 6K.4TFCS.001 90200760 90000224 LB48 Camera 0.3M 56.18011.472 LB48 Antenna R 25.90AAL.001 90200764 LB48 LCD Cover 60.4TF01.001 90200761 LB48 Antenna L 25.90AAK.001 90200763 Panel, 14.0 HD Flat Glossy, AUO, B140XW01 V8 18200207...
Table 8. Parts list - Miscellaneous parts (continued) FRU No. CRU ID (j) LB48 LCD Cable 50.4TF01.001 90200757 N 90200537 N LA48 LCD Mylar 40.4TD03.001 LA48 Microphone Rubber 23.42383.001 90200538 N Note: Italicized letters in parentheses are references to the exploded view in “Overall” on page 80. ac power adapters Table 9.
36200032 Chicony Power HP-BT090E13LF, EPA model Power cords A Lenovo power cord for a specific country or region is usually available only in that country or region. Table 13. Parts list - 3-pin power cords (Linetek) FRU No. Country or region...
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Table 13. Parts list - 3-pin power cords (Linetek) (continued) FRU No. Country or region CRU ID U.K. 145000593 • LINETEK LP-61L+ H03VV-F+ LS15 1 m 145000594 • LINETEK LP-30B + SPT-2 + LS15 1 m Table 14. Parts list - 3-pin power cords (Longwell) FRU No.
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Table 15. Parts list - 3-pin power cords (Volex) FRU No. Country or region CRU ID Argentina 145000528 • VOLEX VA2073+H03VV-F+VAC5S 1 m Australia, New Zealand 145000532 • VOLEX AU10S3+H03VV-F+VAC5S 1 m Brazil 145000527 • VOLEX CH10S3+H03VV-F+VAC5S 1 m 145000525 •...
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Table 16. Parts list - 2-pin power cords (Linetek) (continued) FRU No. Country or region CRU ID Australia 145500023 • LINETEK LP15A+H03VVH2-F+LS7 1 m Brazil 145500028 • LINETEK LP25+H03VVH2-F+LS7H 1 m 145500018 • LINETEK PC205+RVV 0.75/2C+COC03 1 m 145500022 • LINETEK LP21+H03VVH2-F+ LS7 1 m India 145500020 •...
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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 OneKey Windows is the trademark of the Microsoft group of companies.
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Part Number: Printed in China (1P) P/N: *1P*...