YOGA BOOK Lenovo YB1-X90F Lenovo YB1-X90L Hardware Maintenance Manual
Note: Before using this information and the product it supports, be sure to read the general information under “Notices” on page 60. First Edition (August 2016) © Copyright Lenovo 2016. 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.
Contents About this manual........................................iv Safety information.........................................1 General safety ...................................................... 2 Electrical safety .................................................... 3 Safety inspection guide ...................................... 5 Handling devices that are sensitive to electrostatic discharge .................................... 6 Grounding requirements ...................................
About this manual This manual contains service and reference information for the following Lenovo product: Lenovo YOGA BOOK Use this manual to troubleshoot problems. The manual is divided into the following sections: • The common sections provide general information, guidelines, and safety information required for servicing computers. • The product‐specific section includes service, reference, and product‐specific parts information.
Safety information Safety information This chapter presents the following safety information that you need to get familiar with before you service a Lenovo computer: • “General safety” on page 2 • “Electrical safety” on page 3 • “Safety inspection guide” on page 5 • “Handling devices that are sensitive to electrostatic discharge” on page 6 • “Grounding requirements” on page 6 • “Safety notices: multilingual translations” on page 7 • “Laser compliance statement” on page 14 1
Lenovo YOGA BOOK 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. 2. Distribute the weight of the object equally between your feet. 3. Use a slow lifting force. Never move suddenly or twist when you attempt to lift it. 4.
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. Do not use such kind of mat to protect yourself from electrical shock.
Lenovo YOGA BOOK 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. The surface is conductive; such touching can cause personal injury and machine damage.
Safety information Safety inspection guide The purpose of this inspection guide is to assist you in identifying potential unsafe conditions. As each machine was designed and built, required safety items were installed to protect users and service personnel from injury. This guide addresses only those items. You should use good judgment to identify potential safety hazards according to the attachment of non‐Lenovo features or options not covered by this inspection guide.
Lenovo YOGA BOOK 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. Notes: 1.
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. Verify this by shaking the computer and listening for rattling sounds. Metallic parts or metal flakes can cause electrical shorts.
Lenovo YOGA BOOK 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. Use only the battery in the appropriate parts listing. Use of an incorrect battery can result in ignition or explosion of the battery. Certaines batteries de secours contiennent du nickel et du cadmium.
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. Use of an incorrect battery can result in ignition or explosion of the battery. La batterie contient du nickel. Ne la démontez pas, ne l’exposez ni au feu ni à l’eau.
Lenovo YOGA BOOK 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. Use only the battery in the appropriate parts listing. Use of an incorrect battery can result in ignition or explosion of the battery.
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 cristaux liquides se brise et que vous recevez dans les yeux ou sur les mains une partie du fluide, rincez‐les abondamment pendant au moins quinze minutes.
Lenovo YOGA BOOK 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. Aus Sicherheitsgründen die Kunststoffabdeckung, die den unteren Teil der Spannungswandlerplatine umgibt, nicht entfernen.
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.
Lenovo YOGA BOOK 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. to conform to the requirements of the Department of Health and Human Services 21 Code of Federal Regulations (DHHS 21 CFR) Subchapter J for Class 1 laser products.
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. Radiação por raio laser ao abrir. Não olhe fixo no feixe de luz, não olhe diretamente por meio de instrumentos óticos e evite exposição direta com o feixe de luz.
Lenovo YOGA BOOK Hardware Maintenance Manual Important service information This chapter presents the following important service information: • “Strategy for replacing FRUs” on page 16 – “Important notice for replacing a main board” on page 17 • “Important information about replacing RoHS compliant FRUs” on page 18 Important: BIOS and device driver fixes are customer‐installable. The BIOS and device drivers are posted on the customer support site: http://support.lenovo.com/.
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. • Some computers have both a processor board and a main board. If you are instructed to replace either of them, and replacing one of them does not solve the problem, reinstall that board, and then replace the other one.
Lenovo YOGA BOOK Hardware Maintenance Manual Important information about replacing RoHS compliant FRUs RoHS, The Restriction of Hazardous Substances in Electrical and 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.
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. • Before replacing any FRU, read the entire page on removing and replacing FRUs. • When you replace FRUs, use new nylon-coated screws.
Lenovo YOGA BOOK 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. Date of service 3. Date on which the machine failed 4. Date of purchase 5. Procedure index and page number in which the failing FRU was detected 6. Failing FRU name and part number 7. Machine type, model number, and serial number 8.
General checkout Power system checkout To verify a symptom, follow the steps below: 1. Turn off the computer. 2. Remove the battery pack. 3. Connect the AC adapter. 4. Make sure that power is supplied when you turn on the computer. 5. Turn off the computer. 6. Disconnect the AC adapter and install the charged battery pack. 7. Make sure that the battery pack supplies power when you turn on the computer.
Lenovo YOGA BOOK Hardware Maintenance Manual 1.Open the Android Settings screen. To open the Android Settings screen, do either of the following: – – From the main Home screen, touch the Android Settings icon on Lenovo Launch Zone. The Android Settings screen is displayed. Touch the application icon from the action bar and then touch Settings. The Android Settings screen is displayed. 2.Touch About Tablet on the Android Settings screen. 3.
Related service information Related service information This chapter presents the following information: • “Security” on page 23 • “Power management” on page 23 Security Security settings include: SCREEN SECURITY, SIM CARD LOCK (3G version only), PASSWORDS, DEVICE ADMINISTRATION and CREDENTIAL STORAGE. Power management Note: Power management modes are not supported for APM operating system.
Lenovo YOGA BOOK Hardware Maintenance Manual Lenovo YOGA BOOK This chapter presents the following product‐specific service references and product‐specific parts information: • “FRU replacement notices” on page 25 • “Removing and replacing an FRU” on page 26 • “Locations” on page 53 • “Parts list” on page 54 24
Lenovo YOGA BOOK 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: • They maintain tight connections. • They do not easily come loose, even with shock or vibration. • They are harder to tighten.
Lenovo YOGA BOOK 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. An untrained person runs the risk of damaging parts. 2. Before replacing any FRU, review “FRU replacement notices” on page 25. 3.
Lenovo YOGA BOOK 1010 Keyboard Assembly Figure 1. Removal steps of Keyboard assembly Heat the 5mm adhesive surface to 60‐70°C all the way around for about ten minutes. Place suction cups in the position shown in the photo and slowly lift up the secondary display TP. Once there is a gap, insert the piece for disassembly to 5mm. Do this on all four sides to open it up, and then lift up the secondary display.
Lenovo YOGA BOOK Hardware Maintenance Manual Figure 1. Removal steps of Keyboard assembly (continued) Remove the black Mylar. Use tweezers to disconnect the Keyboard assembly and the main board connected to the FPC interface. Gently pull the FPC, so the main board and the Keyboard assembly are completely separated. Note: 1. The power key’s FPC can be easily broken in disassembly. 2. When open, the right side of the motor and the EMR are bonded together. Be careful not to break the motor’s lead wire. 3.
Lenovo YOGA BOOK 1020 Battery DANGER Only use the battery specified in the parts list for your computer. Any other battery could ignite or explode. For access, remove this FRU: • “1010 Keyboard Assembly” on page 27 Figure 2. Removal steps of battery Use a screwdriver to remove the black screws from the battery’s silver sheeting, then remove the sheeting. Step 1 Screw (quantity) Color Torque M1.4X2.5 (1) Black 0.7N Use tweezers to open the interface between the battery FPC and the main board.
Lenovo YOGA BOOK Hardware Maintenance Manual Figure 2. Removal steps of battery (continued) Use a blade to pry open the black cover on either side of the battery, and remove the covers. Note: There is adhesive under the covers. When separating, be careful not to damage the cover or the components.
Lenovo YOGA BOOK Figure 2. Removal steps of battery (continued) After the covers are completely separated, you will see four pieces of blue adhesive. Pull out the four pieces of adhesive, and gently remove the battery.
Lenovo YOGA BOOK Hardware Maintenance Manual 1030 D-cover Hinge Stand For access, remove these FRUs in order: • “1010 Keyboard Assembly” on page 27 • “1020 Battery” on page 29 Figure 3. Removal steps of D‐cover hinge stand Use a screwdriver to remove the 11 screws in the stand, and remove the D‐cover hinge stand. Step 1 32 Screw (quantity) Color Torque M1.4X2.5 (11) Black 0.
Lenovo YOGA BOOK 1040 A-cover and Hinge For access, remove these FRUs in order: • “1010 Keyboard Assembly” on page 27 • “1020 Battery” on page 29 • “1030 D‐cover Hinge Stand” on page 32 Figure 4. Removal steps of A‐cover and hinge Remove the black Mylar and the silver conductive material on the interfaces of the two cables connecting the A‐cover and the D‐cover. Disconnect the two cable interfaces, and gently pull the cable out.
Lenovo YOGA BOOK Hardware Maintenance Manual Figure 4. Removal steps of A‐cover and hinge (continued) Use the card pin to remove the card slot. Use a screwdriver to remove the 4 black screws on the card slot bracket, and remove the USB‐SD‐Frame. Step 1 34 Screw (quantity) Color Torque M1.4X2.5 (4) Black 0.
Lenovo YOGA BOOK Figure 4. Removal steps of A‐cover and hinge (continued) Use a screwdriver to remove the 9 black screws from the hinge lock on the D‐cover, as well as the 1 black screw from the silver Earphone‐SUS‐Frame‐R. Remove the Earphone‐SUS‐Frame‐R. Step Screw (quantity) Color Torque 1 M1.4*4*1.9 (9) Black 0.7N 2 M1.4*2.5 (1) Black 0.7N Remove the hinge and A‐cover components from the D‐cover.
Lenovo YOGA BOOK Hardware Maintenance Manual 1050 Speaker For access, remove these FRUs in order: • “1010 Keyboard Assembly” on page 27 • “1020 Battery” on page 29 • “1030 D‐cover Hinge Stand” on page 32 • “1040 A‐cover and Hinge” on page 33 Figure 5. Removal steps of speaker Use a screwdriver to remove the 2 black screws from the silver sheeting, and remove the sheeting. Step 1 Screw (quantity) Color Torque M1.4*2.5 (2) Black 0.7N Remove the transparent yellow Mylar.
Lenovo YOGA BOOK Figure 5. Removal steps of speaker (continued) Disconnect the interface between the speakers (left and right) and the main board.
Lenovo YOGA BOOK Hardware Maintenance Manual Figure 5. Removal steps of speaker (continued) Use a screwdriver to remove the black screws from the left and right speaker boxes, then remove the speaker boxes. Step 1 38 Screw (quantity) Color Torque M1.4*2.5 (4) Black 0.
Lenovo YOGA BOOK 1060 USB FPC For access, remove these FRUs in order: • “1010 Keyboard Assembly” on page 27 • “1020 Battery” on page 29 • “1030 D‐cover Hinge Stand” on page 32 • “1040 A‐cover and Hinge” on page 33 • “1050 Speaker” on page 36 Figure 6. Removal steps of USB FPC Remove the black Mylar on the interface of the USB FPC and the main board. Then disconnect the interface between the FPC and the main board, and pull the FPC out of the interface.
Lenovo YOGA BOOK Hardware Maintenance Manual Figure 6. Removal steps of USB FPC (continued) Use a blade to scratch the glue off the FPC reinforcement and the side wall of the housing. Then remove the entire component. Note: Be careful not to damage the FPC component when scratching off the glue.
Lenovo YOGA BOOK 1070 Sub Board For access, remove these FRUs in order: • “1010 Keyboard Assembly” on page 27 • “1020 Battery” on page 29 Figure 7. Removal steps of sub board Use a screwdriver to remove the 11 silver screws from the DIV WIFI1&GPS ANT Stand and the WIFI2&Main ANT Stand. Then remove these two ANT Stands. Step 1 Screw (quantity) Color Torque M1.4*2.5*1.7 (11) Silver 0.
Lenovo YOGA BOOK Hardware Maintenance Manual Figure 7. Removal steps of sub board (continued) Use tweezers to gently pull the cable heads from the interfaces of the 4 sub boards, and slowly guide the cables out the narrow cable pathways. Be careful not to damage the cables. Disconnect the ANT FPC and MAIN SB interface, pulling the FPC out of the interface. Use a screwdriver to remove the silver screws of the 4 sub boards and respectively dismantle the 4 sub boards.
Lenovo YOGA BOOK Figure 7. Removal steps of sub board (continued) Step 1 Screw (quantity) Color Torque D4.0*M1.4*1.60 (6) Silver 0.
Lenovo YOGA BOOK Hardware Maintenance Manual 1080 Camera For access, remove these FRUs in order: • “1010 Keyboard Assembly” on page 27 • “1020 Battery” on page 29 • “1050 Speaker” on page 36 Figure 8. Removal steps of camera Use tweezers to disconnect the FPC and main board interface of the camera. Pull the FPC from the interface and remove the camera component.
Lenovo YOGA BOOK 1090 EP FPC For access, remove these FRUs in order: • “1010 Keyboard Assembly” on page 27 • “1020 Battery” on page 29 • “1050 Speaker” on page 36 Figure 9. Removal steps of EP FPC Use tweezers to disconnect the EP FPC and motherboard interface. Gently pry out the headphone jack component. Then gently grip the component and pull. Pull the FPC from the interface, and remove the component.
Lenovo YOGA BOOK Hardware Maintenance Manual 1100 SK FPC For access, remove these FRUs in order: • “1010 Keyboard Assembly” on page 27 • “1020 Battery” on page 29 • “1050 Speaker” on page 36 Figure 10. Removal steps of SK FPC Use tweezers to disconnect the SK FPC and main board interface. Pull the FPC from the interface. Use tweezers to pull the silver key piece out of the slot.
Lenovo YOGA BOOK Figure 10. Removal steps of SK FPC (comtinued) Use tweezers to remove the black volume key.
Lenovo YOGA BOOK Hardware Maintenance Manual 1110 PWRK FPC For access, remove these FRUs in order: • “1010 Keyboard Assembly” on page 27 • “1020 Battery” on page 29 • “1050 Speaker” on page 36 Figure 11. Removal steps of PWRK FPC Use tweezers to gently lift out the left and right motors. Use tweezers to peel off the black Mylar.
Lenovo YOGA BOOK Figure 11. Removal steps of PWRK FPC (continued) Disconnect the PWRK FPC and main board interface. Gently pull out the FPC from the interface. Use tweezers to pull the power key’s silver metal button from its slot.
Lenovo YOGA BOOK Hardware Maintenance Manual Figure 11. Removal steps of PWRK FPC (continued) Use tweezers to remove the black power key.
Lenovo YOGA BOOK 1120 Main Board Important notices for handling the main board: When handling the main board, bear the following in mind. • Be careful not to drop the main board on a bench top that has a hard surface, such as metal, wood, or composite. • Avoid rough handling of any kind. • Throughout the process, make sure not to drop or stack the main board. • If you put the main board down, make sure to put it only on a padded surface such as an ESD mat or conductive corrugated material.
Lenovo YOGA BOOK Hardware Maintenance Manual Figure 12. Removal steps of main board (continued) Use a screwdriver to remove the 2 silver screws on the main board and the black screw on the silver sheeting. Remove the metallic silver sheeting covering the cables. Step Screw (quantity) Color Torque 1 D4.0*M1.4*1.60 (2) Silver 0.7N 2 M1.4*2.5 (1) Black 0.7N Remove the main board from the assembly. Note: A soldering iron can be used to detach the vibration motors from the main board.
Lenovo YOGA BOOK Locations Model Version Lenovo YB1‐X90F WLAN Lenovo YB1‐X90L WLAN + LTE 1 2 1 3 8 9 10 11 4 5 6 12 13 14 15 9 7 1 Microphone 2 Front‐facing camera 3 Touch screen 4 Pen button 5 Main camera 6 Halo Keyboard/Create Pad 7 Touchpad 8 On/Off button 9 Speakers 10 Volume buttons 11 Headset jack 12 Micro USB connector 13 Indicator 14 Card tray 15 Micro HDMI connector Notes: The WLAN model (Lenovo YB1‐X90F) does not have a Nano‐SIM card slot.
Lenovo YOGA BOOK Hardware Maintenance Manual Parts list This section presents the following service parts: • “Overall” on page 55 • “AC Adapter” on page 58 • “USB Cable” on page 58 • “Screw” on page 58 • “Label” on page 58 • “Others” on page 59 Notes: • Each FRU is available for all types or models, unless specific types or models are specified.
Lenovo YOGA BOOK Overall 1 15 14 23 16 6 17 22 8 18 24 19 9 20 30 28 11 7 10 27 21 12 31 13 25 26 36 35 32 29 33 34 2 3 4 5 55
Lenovo YOGA BOOK Hardware Maintenance Manual Table 1. Parts list—Overall No. FRU FRU no. CRU ID 1 1 1 2 3 MB, YB1‐X90L ROW MB_4+64G CS MB, YB1‐X90F ROW MB_4+64G CS MB, YB1‐X90F ROW MB_4+32G CS Battery, CPT‐A L15C2P31 3.8V32.3Wh 2cell bty Mechanical parts, Yeti House‐D ASSY MG 10.1 PPS+GF Mg Mechanical parts, Yeti House‐D ASSY GOLD 10.
Lenovo YOGA BOOK Table 1. Parts list—Overall (continued) No. FRU FRU no. CRU ID 11 12 Camera, CCM L8858A20 8M OV8858 COB 31PIN ZIF Speaker, SPK;DMSP1217N01ASM‐C‐10‐ L;0.7W;L70.2;AAC Speaker, SPK;DMSP1217N01ASM‐C‐10‐ R;0.7W;L70.2;AAC Sub board, Yeti;MAIN;ANT SB Sub board, Yeti;GPS_WIFI1;ANT SB Sub board, Yeti;WIFI2;LTE Only;ANT SB Sub board, Yeti;WIFI2;WIFI Only;ANT SB Sub board, Yeti;DIV;ANT SB Mechanical parts, Yeti USB‐SD‐Frame MG Metal, Yeti Batt‐CONN‐SUS‐Frame SUS 304 T=0.
Lenovo YOGA BOOK Hardware Maintenance Manual AC Adapter Table 2. Parts list—AC Adapters FRU FRU no. CRU ID AC Adapter;SC‐12;5.2V/7V/9V/12V 2A;US;B AC Adapter;SC‐13;5.2V/7V/9V/12V 2A;EU;B AC Adapter;SC‐14;5.2V/7V/9V/12V 2A;UK;B AC Adapter;SC‐15;5.2V/7V/9V/12V 2A;IN;B AC Adapter;SC‐16;5.2V/7V/9V/12V 2A;AU;B AC Adapter;SC‐17;5.2V/7V/9V/12V 2A;AR;B AC Adapter;SC‐18;5.2V/7V/9V/12V 2A;SK;B SA18C02164 SA18C02165 SA18C02166 SA18C02167 SA18C02168 SA18C02169 SA18C02170 N N N N N N N FRU FRU no.
Lenovo YOGA BOOK Others Table 6. Parts list—Others FRU FRU no. CRU ID Yeti LCD FPC Conductive tape 18*4*0.05 Yeti 51pin ZIF Film 16*8 Yeti PCB FILM 3M7412B 51.4*22.14 Yeti 8pin ZIF Film 6*12 Yeti film‐EMR‐R 109.5*14.5*0.6mm Yeti foam conn spk 8*14*1.45 Yeti film‐EMR‐L 103.5*37*0.
Lenovo YOGA BOOK Hardware Maintenance Manual Notices Lenovo may not offer the products, services, or features discussed in this document in all countries. Consult your local 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.
Notices Any performance data contained herein was determined in a controlled environment. Therefore, the result obtained in other operating environments may vary significantly. Some measurements may have been made on development‐level systems and there is no guarantee that these measurements will be the same on generally available systems. Furthermore, some measurements may have been estimated through extrapolation. Actual results may vary.
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