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Lenovo Yoga S940, Hardware Maintenance Manual

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Lenovo IdeaPad S940 and Lenovo Yoga S940  
Hardware Maintenance Manual

Summary of Contents for Yoga S940

Page 1: ...Lenovo IdeaPad S940 and Lenovo Yoga S940 Hardware Maintenance Manual ...

Page 2: ...First Edition September 2019 Copyright Lenovo 2019 ...

Page 3: ...ing FRUs CRUs 23 Locate FRUs and CRUs 23 Chapter 4 Removing a FRU or CRU 27 Service tools 27 General guidelines 27 Remove the lower case 28 Remove the battery pack 29 Remove the solid state drive 30 Remove the solid state drive board with cable 31 Remove the touch pad with cable 32 Remove the speakers 34 Remove the heat sink with fans 35 Remove the I O board brackets 36 Remove the I O board with c...

Page 4: ...ii Lenovo IdeaPad S940 and Lenovo Yoga S940 Hardware Maintenance Manual ...

Page 5: ...ine type MT Lenovo IdeaPad S940 14IIL 81R1 Lenovo Yoga S940 14IIL 81Q8 Important This manual is intended only for trained service technicians who are familiar with Lenovo products Before servicing a Lenovo product be sure to read all the information under Chapter 1 Safety information on page 1 Copyright Lenovo 2019 iii ...

Page 6: ...iv Lenovo IdeaPad S940 and Lenovo Yoga S940 Hardware Maintenance Manual ...

Page 7: ...e clothing or fasten it with a non conductive clip about 8 centimeters 3 inches from the end Do not wear jewelry chains metal frame eyeglasses or metal fasteners for your clothing Attention Metal objects are good electrical conductors Wear safety glasses when you are hammering drilling soldering cutting wire attaching springs using solvents or working in any other conditions that might be hazardou...

Page 8: ...hazards in your work area Examples of these hazards are moist floors non grounded 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 Do not service the following parts with the power on when they are removed fr...

Page 9: ...d 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 Use product specific ESD procedures when they exceed the requirements noted here 2 Make sure that the ESD protective devi...

Page 10: ...utlet can be verified by a certified electrician Safety notices multilingual translations The safety notices in this section are provided in the following languages English Arabic Brazilian Portuguese French German Hebrew Japanese Korean Spanish Traditional Chinese DANGER DANGER DANGER 4 Lenovo IdeaPad S940 and Lenovo Yoga S940 Hardware Maintenance Manual ...

Page 11: ...DANGER DANGER DANGER DANGER DANGER Chapter 1 Safety information 5 ...

Page 12: ...6 Lenovo IdeaPad S940 and Lenovo Yoga S940 Hardware Maintenance Manual ...

Page 13: ...PERIGO PERIGO PERIGO Chapter 1 Safety information 7 ...

Page 14: ...PERIGO PERIGO PERIGO PERIGO PERIGO 8 Lenovo IdeaPad S940 and Lenovo Yoga S940 Hardware Maintenance Manual ...

Page 15: ...DANGER DANGER DANGER DANGER Chapter 1 Safety information 9 ...

Page 16: ...DANGER DANGER DANGER DANGER VORSICHT 10 Lenovo IdeaPad S940 and Lenovo Yoga S940 Hardware Maintenance Manual ...

Page 17: ...VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1 Safety information 11 ...

Page 18: ...VORSICHT VORSICHT VORSICHT 12 Lenovo IdeaPad S940 and Lenovo Yoga S940 Hardware Maintenance Manual ...

Page 19: ...Chapter 1 Safety information 13 ...

Page 20: ...14 Lenovo IdeaPad S940 and Lenovo Yoga S940 Hardware Maintenance Manual ...

Page 21: ...Chapter 1 Safety information 15 ...

Page 22: ...16 Lenovo IdeaPad S940 and Lenovo Yoga S940 Hardware Maintenance Manual ...

Page 23: ...Chapter 1 Safety information 17 ...

Page 24: ...18 Lenovo IdeaPad S940 and Lenovo Yoga S940 Hardware Maintenance Manual ...

Page 25: ...Chapter 1 Safety information 19 ...

Page 26: ...20 Lenovo IdeaPad S940 and Lenovo Yoga S940 Hardware Maintenance Manual ...

Page 27: ...hen you return a 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 service technician 2 Date of service 3 Date on which the machine failed 4 Date of purchase 5 Failure symptoms error codes appearing on the display and beep symptoms 6 Procedure index and page number in which the failing FRU was detected 7 ...

Page 28: ...toms might indicate damage caused by non warranted activities Missing parts might be a symptom of unauthorized service or modification Check for obvious damage to a hard disk drive If the spindle of a hard disk drive becomes noisy the hard disk drive might have been dropped or subject to excessive force CRU list Table 1 Model Lenovo IdeaPad S940 14IIL Machine type 81R1 CRU Type ac power adapter se...

Page 29: ...detifying FRUs CRUs Locate FRUs and CRUs The exploded illustrations help Lenovo service technicians identify FRUs or CRUs that they may need to replace when servicing a customer s computer Copyright Lenovo 2019 23 ...

Page 30: ...o IdeaPad S940 14IIL Lenovo Yoga S940 14IIL exploded view Table 3 FRU CRU categories No FRU CRU category 1 LCD module 2 Upper case with keyboard 24 Lenovo IdeaPad S940 and Lenovo Yoga S940 Hardware Maintenance Manual ...

Page 31: ... Left I O board bracket 6 Solid state drive SSD 7 Solid state drive board with cable 8 Lower case 9 Speakers 10 Battery pack 11 Right I O board bracket 12 I O board with cable 13 Touch pad with cable a Power cord b AC power adapter c Screw kit Chapter 3 Idetifying FRUs CRUs 25 ...

Page 32: ...26 Lenovo IdeaPad S940 and Lenovo Yoga S940 Hardware Maintenance Manual ...

Page 33: ...ctrical tape Double sided tape Conductive tape Eraser Heat gun Brown brush Notes T30 screw drivers are used to service the new Intel Xeon CPUs Hexagonal sockets are used to remove antenna connectors Silicone grease is applied to the CPU and heatsink surfaces to eliminate air gaps General guidelines When removing or replacing a FRU ensure that you observe the following general guidelines 1 Do not t...

Page 34: ...FRU or CRU shut down the computer and unplug all power cords from electrical outlets Attention After replacing a FRU do not turn on the computer until you have ensured that all screws springs and other small parts are in place and none are loose inside the computer Verify this by shaking the computer gently and listening for rattling sounds Metallic parts or metal flakes can cause electrical short...

Page 35: ...p the Lenovo part numbers of the following replacement part Lower case Remove the battery pack Make sure the following FRUs or CRUs have been removed Remove the lower case on page 28 Step 1 Disconnect the cable from the system board Attention Use your fingernail to pull the connector to unplug it Do not pull the cable Step 2 Remove five screws and then remove the battery pack Chapter 4 Removing a ...

Page 36: ... solid state drive Make sure the following FRUs or CRUs have been removed Remove the lower case on page 28 Step 1 Disconnect the battery pack cable from the system board Attention Use your fingernail to pull the connector to unplug it Do not pull the cable Step 2 Remove one screw and remove the solid state drive by pulling it away from the slot 30 Lenovo IdeaPad S940 and Lenovo Yoga S940 Hardware ...

Page 37: ...t Solid state drive Remove the solid state drive board with cable Make sure the following FRUs or CRUs have been removed Remove the lower case on page 28 Remove the battery pack on page 29 Remove the solid state drive on page 30 Step 1 Disconnect the cable of the solid state drive board from the system board Then peel off the film on the solid state drive board Chapter 4 Removing a FRU or CRU 31 ...

Page 38: ...le Screw specifications Number of screws M2 x L2 2 Go to https support lenovo com partslookup to look up the Lenovo part numbers of the following replacement part solid state drive board with cable Remove the touch pad with cable Make sure the following FRUs or CRUs have been removed Remove the lower case on page 28 32 Lenovo IdeaPad S940 and Lenovo Yoga S940 Hardware Maintenance Manual ...

Page 39: ... remove two screws Figure 8 Disconnect the touch pad cable and remove screws Screw specifications Number of screws M2 x L3 2 Step 2 Pivot the upper case with keyboard and remove the touch pad with cable as shown Figure 9 Remove the touch pad with cable Go to https support lenovo com partslookup to look up the Lenovo part numbers of the following replacement part Chapter 4 Removing a FRU or CRU 33 ...

Page 40: ...nect the left speaker cable from the system board Disconnect the cable of the solid state drive board and the cable of the touch pad from the system board Then disconnect the right speaker cable from the I O board Figure 10 Disconnect cables Step 2 Carefully remove the speakers Figure 11 Remove speakers 34 Lenovo IdeaPad S940 and Lenovo Yoga S940 Hardware Maintenance Manual ...

Page 41: ...Us or CRUs have been removed Remove the lower case on page 28 Step 1 Peel off the two acetate tapes and retain them for reuse when installing the new heat sink Figure 12 Peel off the acetate tapes Step 2 Loosen three screws in alphabetical order and remove the heat sink with fans Figure 13 Loosen three screws and remove the heat sink with fans Chapter 4 Removing a FRU or CRU 35 ...

Page 42: ... the following FRUs or CRUs have been removed Remove the lower case on page 28 Step 1 Remove four screws and remove the left I O board bracket Figure 14 Remove the left I O board bracket Screw specifications Number of screws M2 x L3 4 Step 2 Remove three screws and remove the right I O board bracket 36 Lenovo IdeaPad S940 and Lenovo Yoga S940 Hardware Maintenance Manual ...

Page 43: ...O board bracket Right I O board bracket Remove the I O board with cable Make sure the following FRUs or CRUs have been removed Remove the lower case on page 28 Remove the I O board brackets on page 36 Step 1 Remove two screws and disconnect the cable of the I O board from the system board Then disconnect the keyboard cable and the right speaker cable from the I O board as shown Chapter 4 Removing ...

Page 44: ...move the I O board with cable Screw specifications Number of screws M2 x L3 2 Go to https support lenovo com partslookup to look up the Lenovo part numbers of the following replacement part I O board with cable Remove the system board Make sure the following FRUs or CRUs have been removed Remove the lower case on page 28 38 Lenovo IdeaPad S940 and Lenovo Yoga S940 Hardware Maintenance Manual ...

Page 45: ... connected to the system board and disconnect the antenna cables from the wireless module Figure 18 Disconnect cables Step 2 Remove six screws and disconnect the cable of the I O board from the system board Figure 19 Remove six screws Chapter 4 Removing a FRU or CRU 39 ...

Page 46: ...s of the following replacement part System board Remove the LCD module Make sure the following FRUs CRUs have been removed Remove the lower case on page 28 Step 1 Disconnect the battery pack cable and LCD cable from the system board Attention Use your fingernail to pull the connector to unplug it Do not pull the cable 40 Lenovo IdeaPad S940 and Lenovo Yoga S940 Hardware Maintenance Manual ...

Page 47: ...e the LCD module to an angle of more than 90 degrees and place the computer on a flat surface as shown Then remove six screws Figure 22 Rotate the LCD module and remove six screws Screw specifications Number of screws M2 x L3 5 6 Step 3 Remove the LCD module Chapter 4 Removing a FRU or CRU 41 ...

Page 48: ...n page 30 Remove the solid state drive board with cable on page 31 Remove the touch pad with cable on page 32 Remove the speakers on page 34 Remove the heat sink with fans on page 35 Remove the I O board brackets on page 36 Remove the I O board with cable on page 37 Remove the system board on page 38 Remove the LCD module on page 40 Go to https support lenovo com partslookup to look up the Lenovo ...

Page 49: ...Trademarks LENOVO and the LENOVO logo are trademarks of Lenovo All other trademarks are the property of their respective owners 2019 Lenovo ...

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