Lenovo B470e Notebook- User Manual

About this manual This manual contains service and reference information for the following Lenovo ® products. Product Machine type (MT) Lenovo B470 4315, 20087 Lenovo B470e 3499, 20172 Use this manual to troubleshoot problems. The manual is divided into the following sections: • The common sections ...

Chapter 1. Safety information This chapter presents following safety information that you need to be familiar with before you service aLenovo Notebook.• “General safety” on page 1 • “Electrical safety” on page 2 • “Safety inspection guide” on page 3 • “Handling devices that are sensitive to electros...

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 materialthat does not insulate you when working with live electrical currents.Many customers have, near their eq...

2. Make sure that the ESD protective devices you use have been certified (ISO 9000) as fully effective. When handling ESD-sensitive parts: • Keep the parts in protective packages until they are inserted into the product. • Avoid contact with other people. • Wear a grounded wrist strap against your s...

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 19

Chapter 2. Important service information This chapter presents following important service information that applies to all machine types supported bythis manual:• “Strategy for replacing FRUs” on page 27 – “Strategy for replacing a hard disk drive” on page 27 – “Important notice for replacing a syst...

Attention: The drive startup sequence in the computer you are servicing may have been changed. Be extremely careful during write operations such as copying, saving, or formatting. If you select an incorrectdrive, data or programs can be overwritten. Important notice for replacing a system board Some...

Chapter 3. General checkout This chapter presents following information:• “What to do first” on page 29 • “Power system checkout” on page 30 Before you go to the checkout guide, be sure to read the following important notes. Important notes: • Only certified trained personnel should service the comp...

• If the problem persists, go to Chapter 5 “Lenovo B470 and B470e” on page 37. Note: Noise from the ac power 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 batterypack that ha...

Chapter 4. Related service information This chapter presents following information:• “Restoring the factory contents by using OneKey Recovery” on page 33 • “Passwords” on page 33 • “Power management” on page 34 Restoring the factory contents by using OneKey Recovery Restore of factory default The Le...

Supervisor password A supervisor password (SVP) protects the system information stored in the BIOS. The user must enter theSVP in order to get access to the BIOS and change the system configuration. Attention: If the SVP has been forgotten and cannot be made available to the service technician, ther...

Chapter 5. Lenovo B470 and B470e This chapter presents the following product-specific service references and parts information: • “Specifications” on page 37 • “Status indicators” on page 38 • “Fn key combinations” on page 40 Specifications This topic presents the physical specifications of the comp...

Table 1. Specifications (continued) Feature Description Hard disk drive • 9.5mm HDD: – 1TB 7200rpm&5400rpm – 750GB 7200rpm – 500GB 7200rpm&5400rpm – 320GB 7200rpm&5400rpm • 7mm HDD: – 500GB 7200rpm&5400rpm – 320GB 7200rpm&5400rpm I/O port • Stereo headphone jack • Microphone jack...

Fn key combinations The following table shows the function of each combination of Fn with a function key. Table 3. Function key combinations Key combination Description Fn+Esc Turn on or turn off the integrated camera. Fn+F1 Put your computer into sleep mode. To return to normal operation, pressany ...

Chapter 6. FRU replacement notices This chapter presents notices related to removing and replacing parts. Read this chapter carefully beforereplacing any FRU. External CRU statement to customers: Some problems with your product can be resolved with a replacement part you can install yourself, called...

• Torque driver If you have a torque driver, refer to the “Torque” column for each step. • Make sure that you use the correct screw. If you have a torque screwdriver, tighten all screws firmly to the torque shown in the table. Never use a screw that you removed. Use a new one. Make sure that all of ...

Chapter 7. Removing and replacing a FRU This chapter presents directions and drawings for use in removing and replacing a FRU. Be sure to observethe following general rules: 1. Do not try to service any computer unless you have been trained and certified. An untrained person runs the risk of damagin...

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 igniteor explode. Unlock the battery latch 1 . Holding the battery lock lever in the unlocked position 2 , remove the battery pack in the direction shown...

Removal steps of dummy cards Remove the dummy card in the direction shown by the arrows 1 and 2 . 1 2 1030 Bottom slot cover For access, remove this FRU:• “1010 Battery pack” on page 44 Removal steps of hard disk drive, memory module, and mini PCI Express Card slot compartment cover Loosen screws 1 ...

Attention: • Do not drop the drive or apply any physical shock to it. The drive is sensitive to physical shock. Improper handling can cause damage and permanent loss of data. • Before removing the drive, have the user make a backup copy of all the information on it if possible. • Never remove the dr...

Removal steps of the optical drive Remove the screw 1 , insert a screwdriver into the screw hole and push the optical drive in the direction shown by the arrow 2 . Pull the optical drive out in the direction shown by the arrow 3 . 1 Step Screw (quantity) Color Torque 1 M2 × 5 mm, flat-head, nylon-co...

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 1 , and then unplug the DIMM in the direction shown by the arrow 2 . b a a Note: If only one memory module is used on the computer you are servicing, the card mus...

Removal steps of PCI Express Mini Card for wireless LAN/WAN Disconnect the two wireless LAN cables (black, white) 1 , and then remove the screw 2 . 1 2 In step 1 , unplug the jacks by using the removal tool antenna RF connector (P/N: 08K7159) or pick the connectors with your fingers and gently unplu...

Removal steps of keyboard Remove screws 1 . 1 1 1 When installing: Make sure the screws have been fastened to secure to keyboard. Step Screw (quantity) Color Torque 1 M2.5 × 7 mm, flat-head, nylon-coated (3) Black 3.0 kgfcm Carefully lift the keyboard until you can see how it’s connected. Hold the k...

1090 Keyboard bezel For access, remove these FRUs in order:• “1010 Battery pack” on page 44 • “1030 Bottom slot cover” on page 45 • “1050 Optical drive” on page 46 • “1080 Keyboard” on page 49 Removal steps of keyboard bezel Remove screws 1 and 2 that secure the keyboard bezel. 1 1 1 1 1 1 1 2 1 2 2...

Remove the screw 9 and then remove the power board 10 . 10 9 Step Screw (quantity) Color Torque 9 M2 × 3 mm, flat-head, nylon-coated (1) Black 1.6 kgfcm 1100 System board assembly Important notices for handling the system board: When handling the system board, bear the following in mind. • Be carefu...

Removal steps of system board Remove screws 1 . Unplug the microphone connectors in the direction shown by arrows 2 . 2 2 1 1 Step Screw (quantity) Color Torque 1 M2 × 7 mm, flat-head, nylon-coated (2) Black 3.0 kgfcm When installing: Make sure that all the connectors are attached firmly. 54 Hardwar...

Removal steps of LCD unit Release the antenna cables from the cable guides in the direction shown by the arrows 1 . Then remove the screws 2 . 1 1 1 2 2 2 2 Step Screw (quantity) Color Torque 2 M2 × 5 mm, flat-head, nylon-coated (4) Black 1.6 kgfcm When installing: • Route the antenna cables along t...

1120 Fan assembly and heat sink assembly For access, remove these FRUs in order:• “1010 Battery pack” on page 44 • “1020 Dummy card” on page 44 • “1030 Bottom slot cover” on page 45 • “1040 Hard disk drive” on page 45 • “1050 Optical drive” on page 46 • “1060 Memory modules” on page 47 • “1070 PCI E...

Removal steps of CPU Rotate the head of the screw in the direction shown by the arrow 1 to release the lock, then remove the CPU 2 . 2 2 a b 1 When installing: Place the CPU above the CPU socket, and then rotate the head of the screw in the direction shown by arrow b to secure the CPU. 1140 Base cov...

Applying labels to the base cover The new base cover FRU is shipped with a kit containing labels of several kinds. If the Windows Certificate of Authentication label (COA) b is attached to a part that is replaced, return the old part with the label attached to the customer, or provide a letter to th...

Removal steps of LCD bezel Remove the screws 1 . 1 1 Step Screw (quantity) Color Torque 1 M2.5 × 4 mm, flat-head, nylon-coated (2) Black 3.0 kgfcm Remove the LCD front bezel in the direction shown by the arrows 2 . 2 2 2 2 When installing: Make sure that all the latches are attached firmly. Then sec...

• “1050 Optical drive” on page 46 • “1060 Memory modules” on page 47 • “1070 PCI Express Mini Card for wireless LAN/WAN” on page 48 • “1080 Keyboard” on page 49 • “1090 Keyboard bezel” on page 51 • “1100 System board assembly” on page 53 • “1110 LCD unit” on page 55 • “1150 LCD front bezel” on page ...

Removal steps of integrated camera Remove the integrated camera from the LCD cover 1 . Note: The integrated camera is stuck on the top center of the LCD cover. 1 When installing: Stick the integrated camera to the top center of the LCD cover and adjust the placement to make sure the connector is att...

Removal steps of antenna assembly and LCD cover Release the antenna cables from the cable guides of the LCD rear cover assembly and from the hinges inthe direction shown by the arrows 1 .. Cable routing: Route the antenna cables along the cable guides and secure the antenna boards with adhesive tape...

Chapter 8. Locations This chapter presents the locations of Lenovo B470 and B470e hardware components. Front view 5 4 3 6 8 2 2 9 1 8 7 10 11 12 3 1 Integrated camera (on some models) 7 Graphics Processing Unit (GPU) switch (on some models) 2 Wireless module antennas (on some models) 8 System status...

Right-side view 1 2 3 4 3 1 Headphone jack 3 USB connectors 2 Microphone jack 4 Optical drive (on some models) Bottom and left-side view 9 11 10 12 13 1 2 3 4 7 8 6 5 1 Security keyhole 8 USB port 2 Power jack 9 Battery latch (spring loaded) 3 Fan louvers 10 Battery pack 4 VGA port 11 Battery latch ...

Chapter 9. Parts list This chapter contains following lists of the service parts.• “Overall” on page 72 • “LCD FRUs” on page 75 • “Keyboard” on page 77 • “Miscellaneous parts” on page 78 • “ac power adapters” on page 78 • “Power cords” on page 78 External CRU statement to customers: Some problems wi...

Overall 1 11 h 12 13 16 c 17 7 15 b 18 10 3 5 a e d f 4 i 6 2 g 8 9 14 72 Hardware Maintenance Manual

Table 4. Parts list—Overall (continued) No. FRU (Overall) FRU no. 15 Hard disk drive, 500G 5400rpm SATA, Seagate ST9500325AS 500G 9NB 16004189 15 Hard disk drive, 500G 5400rpm SATA, WD5000BPVT-24HXZT1 5400RPM 500G 16004846 15 Hard disk drive, 500G 5400rpm SATA, Hitachi HTS545050B9A300 500G 9NB 16004...

Table 5. Parts list - LCD (continued) No. FRU FRU no. 5 LB47 CAMEAR VGA CHICONY/LITEON/BISON 31049002 5 LZ57 CAMEAR 0.3M VGA 10P2SF016B LITEON 31049300 5 LB47L Camera 0.3M VGA 10P2SF016 LITEON 90200212 6 LB47 LCD CABLE 31049000 6 LB47L LCD Cable 50.4VD01.001 90200211 7 LB47 LCD COVER FOR WIMAX W/ANT...

Table 6. Parts list - Keyboard (continued) Language FRU no.(Dafon) FRU no.(Chicony) FRU no.(Sunrex) Traditional Chinese 25012658 25012598 25012598 Turkish 25012648 25012592 25012592 U.K. English 25012642 25012589 25012589 U.S. English 25012640 25012588 25012588 U.S. English (International, with a Eu...

Trademarks The following terms are trademarks of Lenovo in the United States, other countries or both: LenovoOneKey Rescue Windows is a trademark of the Microsoft group of companies. Intel is a trademark of Intel Corporation or its subsidiaries in the United States, other countries, or both. Other c...