Lenovo 14ARB7 Hardware Maintenance Manual Download Page 30

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Table 1. FRU (CRU) categories

No.

FRU (CRU) category

LCD unit

Upper case (with keyboard)

Power board cable

Power board

Coin-cell battery holder

Coin-cell battery

USB board

USB board cable

Wi-Fi card

M.2 2280 solid-state drive thermal pad*

M.2 2280 solid-state drive*

M.2 2242 solid-state drive thermal pad*

M.2 2242 solid-state drive*

M.2 2242 solid-state drive bracket*

Lower case

Speakers

Battery pack

Thermal module

Fingerprint reader board cable*

Touch pad cable

System board

System board rubber

ac power adapter

Power cord

Screw kit

* for selected models

Yoga 7 (14

″

, 7) and Yoga 7i (14

″

, 7) Hardware Maintenance Manual

Summary of Contents for 14ARB7

Page 1: ...Yoga 7 14 7 and Yoga 7i 14 7 Hardware Maintenance Manual ...

Page 2: ...First Edition March 2022 Copyright Lenovo 2022 ...

Page 3: ...M 2 2242 solid state drive and bracket for selected models 33 Remove the Wi Fi card 35 Remove the thermal module 37 Remove the USB board cable 38 Remove the USB board 39 Remove the speakers 41 Remove the touch pad cable 42 Remove the fingerprint reader board cable for selected models 43 Remove the system board 44 Use a Golden Key U1 tool to flash write key id information 46 Remove the coin cell ba...

Page 4: ...ii Yoga 7 14 7 and Yoga 7i 14 7 Hardware Maintenance Manual ...

Page 5: ...ine Machine type MT Yoga 7 14ARB7 82QF Yoga 7 14IAL7 82QE 82VD 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 2022 iii ...

Page 6: ...iv Yoga 7 14 7 and Yoga 7i 14 7 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: ...sible 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 remo...

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: ...ical outlet 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 Yoga 7 14 7 and Yoga 7i 14 7 Hardware Maintenance Manual ...

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

Page 12: ...6 Yoga 7 14 7 and Yoga 7i 14 7 Hardware Maintenance Manual ...

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

Page 14: ...PERIGO PERIGO PERIGO PERIGO PERIGO 8 Yoga 7 14 7 and Yoga 7i 14 7 Hardware Maintenance Manual ...

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

Page 16: ...DANGER DANGER DANGER DANGER VORSICHT 10 Yoga 7 14 7 and Yoga 7i 14 7 Hardware Maintenance Manual ...

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

Page 18: ...VORSICHT VORSICHT VORSICHT 12 Yoga 7 14 7 and Yoga 7i 14 7 Hardware Maintenance Manual ...

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

Page 20: ...14 Yoga 7 14 7 and Yoga 7i 14 7 Hardware Maintenance Manual ...

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

Page 22: ...16 Yoga 7 14 7 and Yoga 7i 14 7 Hardware Maintenance Manual ...

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

Page 24: ...18 Yoga 7 14 7 and Yoga 7i 14 7 Hardware Maintenance Manual ...

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

Page 26: ...20 Yoga 7 14 7 and Yoga 7i 14 7 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: ... power adapter on laptop products The following symptoms 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 CRU Type ac power adapter self ser...

Page 29: ...Us 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 Figure 1 Exploded view Copyright Lenovo 2022 23 ...

Page 30: ... drive thermal pad 11 M 2 2280 solid state drive 12 M 2 2242 solid state drive thermal pad 13 M 2 2242 solid state drive 14 M 2 2242 solid state drive bracket 15 Lower case 16 Speakers 17 Battery pack 18 Thermal module 19 Fingerprint reader board cable 20 Touch pad cable 21 System board 22 System board rubber a ac power adapter b Power cord c Screw kit for selected models 24 Yoga 7 14 7 and Yoga 7...

Page 31: ...o FRU CRU category 1 LCD panel 2 Microphone rubbers 3 Camera board 4 Camera board cable 5 Sensor board 6 Sensor board cable 7 EDP cable 8 LCD cover 9 Removable tapes 10 Hinge rubbers 11 Hinges 12 Strip frame 13 Strip covers Chapter 3 Idetifying FRUs CRUs 25 ...

Page 32: ...26 Yoga 7 14 7 and Yoga 7i 14 7 Hardware Maintenance Manual ...

Page 33: ...lectrical 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...

Page 34: ...g any 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...

Page 35: ...ook up 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 battery pack cable from the system board Then remove five screws and the battery pack Attention Use your fingernail to pull the connector to unplug it Do not pull the cable Chapter 4 Removin...

Page 36: ... up the Lenovo part numbers of the following replacement part Battery pack Remove the coin cell battery 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 30 Yoga 7 14 7 and Yoga 7i 14 7 Hardware Maintenance Manua...

Page 37: ...o https support lenovo com partslookup to look up the Lenovo part numbers of the following replacement part Coin cell battery Remove the M 2 2280 solid state drive for selected models 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 Remove the solid state drive thermal pad Chapter 4 Removing a FRU...

Page 38: ...e the solid state drive thermal pad Step 2 Remove one screw and remove the solid state drive by pulling it away from the slot Figure 9 Remove one screw and the solid state drive Screw specifications Number of screws M2 0 L2 2 1 Step 3 Peel off the mylar from the solid state drive 32 Yoga 7 14 7 and Yoga 7i 14 7 Hardware Maintenance Manual ...

Page 39: ...els 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 Remove the solid state drive thermal pad Attention Use your fingernail to pull the connector to unplug it Do not pull the cable Figure 11 Disconnect the battery pack cable and remove the solid state drive thermal pad Step 2 Remove one screw and ...

Page 40: ...tep 3 Remove one screw and then remove the solid state drive Figure 13 Remove one screw and the solid state drive Screw specifications Number of screws M2 0 L2 7 1 Step 4 Peel off the mylar from the solid state drive Figure 14 Peel off the mylar 34 Yoga 7 14 7 and Yoga 7i 14 7 Hardware Maintenance Manual ...

Page 41: ...rd 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 Then lift up the thermal mylar Attention Use your fingernail to pull the connector to unplug it Do not pull the cable Figure 15 Disconnect the battery pack cable and lift up the thermal mylar Step 2 Remove one screw and then disconnect the wirele...

Page 42: ...Number of screws M2 0 L2 2 1 Step 3 Remove the Wi Fi card Figure 17 Remove the Wi Fi card Go to https support lenovo com partslookup to look up the Lenovo part numbers of the following replacement part Wi Fi card Thermal mylar 36 Yoga 7 14 7 and Yoga 7i 14 7 Hardware Maintenance Manual ...

Page 43: ...onnector to unplug it Do not pull the cable Figure 18 Disconnect battery pack cable and peel off thermal mylar Step 2 Disconnect the fan cable connector and remove the cable from fan hooks Figure 19 Disconnect the fan cable connector and remove the cable Step 3 Disconnect the fan cable Then loosen four screws in alphabetical order from the heat sink and remove two screws from the fan Then remove t...

Page 44: ...m partslookup to look up the Lenovo part numbers of the following replacement parts Thermal module Thermal mylar Remove the USB board cable 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 38 Yoga 7 14 7 and Yog...

Page 45: ...nnect and remove the USB board cable Go to https support lenovo com partslookup to look up the Lenovo part numbers of the following replacement part USB board cable Remove the USB board 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 Chapter 4 Removing a FRU or CRU 39 ...

Page 46: ...re 23 Disconnect the battery pack cable Step 2 Disconnect the power board cable coin cell battery cable USB board cable and speaker cable from the USB board Figure 24 Disconnect the cables Step 3 Remove three screws and the USB board 40 Yoga 7 14 7 and Yoga 7i 14 7 Hardware Maintenance Manual ...

Page 47: ...ok up the Lenovo part numbers of the following replacement part USB board Remove the speakers Make sure the following FRUs CRUs have been removed Remove the lower case on page 28 Remove the battery pack on page 29 Step 1 Disconnect the speaker cable from the system board Then remove eight screws and the speakers Chapter 4 Removing a FRU or CRU 41 ...

Page 48: ...ovo part numbers of the following replacement parts Speaker Remove the touch pad 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 Step 1 Disconnect the touch pad cable connectors from the system board and the touch pad Then remove the touch pad cable 42 Yoga 7 14 7 and Yoga 7i 14 7 Hardware Maintenance Manual ...

Page 49: ...ouch pad cable Remove the fingerprint reader board cable for selected models Make sure the following FRUs CRUs have been removed Remove the lower case on page 28 Remove the battery pack on page 29 Step 1 Disconnect the fingerprint reader board cable Then remove the fingerprint reader board cable Figure 28 Disconnect and remove the fingerprint reader board cable Chapter 4 Removing a FRU or CRU 43 ...

Page 50: ... lower case on page 28 Remove the M 2 2280 solid state drive for selected models on page 31 Remove the M 2 2242 solid state drive and bracket for selected models on page 33 Remove the Wi Fi card on page 35 Remove the thermal module on page 37 Step 1 Disconnect all the cables from the system board Figure 29 Disconnect cables Step 2 Remove seven screws and the system board 44 Yoga 7 14 7 and Yoga 7i...

Page 51: ... 9 5 Step 3 Remove the system board rubber and the mylar Figure 31 Remove the system board rubber and the mylar Go to https support lenovo com partslookup to look up the Lenovo part numbers of the following replacement part System board System board mylar System board rubber Chapter 4 Removing a FRU or CRU 45 ...

Page 52: ...older power board and cable Make sure the following FRUs or CRUs have been removed Remove the lower case on page 28 Remove the coin cell battery on page 30 Remove the M 2 2280 solid state drive for selected models on page 31 Remove the M 2 2242 solid state drive and bracket for selected models on page 33 Remove the Wi Fi card on page 35 Remove the thermal module on page 37 Remove the system board ...

Page 53: ... cable Screw specifications Number of screws M2 0 L5 0 3 Step 3 Disconnect and remove the power board with cable Figure 34 Disconnect and remove the power board with cable Step 4 Remove the power board cable Figure 35 Remove the power board cable Chapter 4 Removing a FRU or CRU 47 ...

Page 54: ...r case with keyboard Make sure the following FRUs CRUs have been removed Remove the lower case on page 28 Remove the system board on page 44 Step 1 Remove the cable from the hooks Figure 36 Remove the cable from the hooks Step 2 Remove six screws Then rotate the upper case with keyboard to an angle larger than 270 degrees 48 Yoga 7 14 7 and Yoga 7i 14 7 Hardware Maintenance Manual ...

Page 55: ...upper case with keyboard from the LCD module Figure 38 Remove the upper case with keyboard Go to https support lenovo com partslookup to look up the Lenovo part numbers of the following replacement part Upper case with keyboard Remove the strip covers Make sure the following FRUs CRUs have been removed Chapter 4 Removing a FRU or CRU 49 ...

Page 56: ...l Figure 39 Remove the strip covers Go to https support lenovo com partslookup to look up the Lenovo part numbers of the following replacement part Strip cover Remove the strip frame Make sure the following FRUs CRUs have been removed Remove the lower case on page 28 Remove the upper case with keyboard on page 48 Remove the strip covers on page 49 Step 1 Remove seven screws and the strip frame 50 ...

Page 57: ... support lenovo com partslookup to look up the Lenovo part numbers of the following replacement part Strip frame Remove the LCD panel Make sure the following FRUs CRUs have been removed Remove the lower case on page 28 Remove the upper case with keyboard on page 48 Remove the strip covers on page 49 Remove the strip frame on page 50 Step 1 Pull out two removable tapes Then lift the LCD panel Chapt...

Page 58: ...d sensor board cable and then remove the LCD panel Go to https support lenovo com partslookup to look up the Lenovo part numbers of the following replacement part LCD panel Removable tape Remove the hinges hinge rubbers EDP cable and sensor board cable Make sure the following FRUs or CRUs have been removed Remove the lower case on page 28 52 Yoga 7 14 7 and Yoga 7i 14 7 Hardware Maintenance Manual...

Page 59: ...and remove six screws the hinges sensor board cable and the EDP cable from the LCD cover Screw specifications Number of screws M2 0 L2 5 6 Step 2 Use fingers to pull out the EDP cable and the left hinge rubber from the hinge Figure 44 Use fingers to pull out the EDP cable and the left hinge rubber from the hinge Step 3 Use fingers to pull out the sensor board cable and the right hinge rubber Chapt...

Page 60: ...EDP cable Hinge Hinge rubber Sensor board cable Remove the camera board cable Make sure the following FRUs CRUs have been removed Remove the lower case on page 28 Remove the upper case with keyboard on page 48 Remove the LCD panel on page 51 Step 1 Disconnect the camera board cable from the camera board and remove the camera board cable 54 Yoga 7 14 7 and Yoga 7i 14 7 Hardware Maintenance Manual ...

Page 61: ...ement part Camera board cable Remove the microphone rubbers Make sure the following FRUs CRUs have been removed Remove the lower case on page 28 Remove the upper case with keyboard on page 48 Remove the LCD panel on page 51 Step 1 Remove the microphone rubbers from the camera board Figure 47 Remove the microphone rubbers Chapter 4 Removing a FRU or CRU 55 ...

Page 62: ...d remove the camera board Figure 48 Disconnect the camera board cable connector and remove the camera board Go to https support lenovo com partslookup to look up the Lenovo part numbers of the following replacement part Camera board Remove the sensor board Make sure the following FRUs CRUs have been removed Remove the lower case on page 28 Remove the upper case with keyboard on page 48 Remove the ...

Page 63: ...ensor board cable and camera board cable and remove the sensor board Go to https support lenovo com partslookup to look up the Lenovo part numbers of the following replacement part Sensor board Chapter 4 Removing a FRU or CRU 57 ...

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Page 65: ...to the replacement base cover Table 4 All base cover labels Label Label description Applied country region Label dimensions 1 Adapter label 65 mm 20 mm 2 OS label 16 mm 22 5 mm 3 Country label KCC printing label 50 mm 16 mm 4 New BIS label_India 22 mm 30 mm 5 Vietnam label 10 mm 9 mm 6 Belarus label 40 mm 8 mm 7 Malaysia label 8 mm 8 mm 8 WL BT label 35 mm 15 mm Copyright Lenovo 2022 59 ...

Page 66: ...60 Yoga 7 14 7 and Yoga 7i 14 7 Hardware Maintenance Manual ...

Page 67: ...Trademarks LENOVO the LENOVO logo and Yoga are trademarks of Lenovo All other trademarks are the property of their respective owners 2022 Lenovo ...

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