Lenovo YOGA Tab 3 YT3-850F, Hardware Maintenance Manual

Page 1: ...YOGA Tab 3 8 Hardware Maintenance Manual Lenovo YT3 850F Lenovo YT3 850L Lenovo YT3 850M ...

Page 2: ...eloped 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 LIMITED AND RESTRICTED RIGHTS NOTICE If products data computer software or services are delivered pursuant to a General Services Administration GSA contract use reproduction or disclo sure is subject to re...

Page 3: ...nal battery status 22 Related service information 23 Security 23 Power management 23 Activating Deactivating the Display 23 Lenovo YT3 850 24 Specifications 24 Components location 26 Front view 26 Rear view 27 Parts list 28 FRUs list 28 Screws list 31 FRU replacement notices 32 Screw notices 32 Removing and replacing an FRU 33 1010 Rear cover 34 1020 Left speaker assembly unit with power key FPC 3...

Page 4: ...for servicing computers The product specific section includes service reference and product specific parts information About this manual Note The information provided in this manual is applicable to both product versions mentioned above unless otherwise specified Important This manual is intended only for trained servicers who are familiar with Lenovo products Use this manual to troubleshoot probl...

Page 5: ...ervice 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 Safety information ...

Page 6: ... from all personnel while you are servicing the machine Keep your toolcase away from walk areas so that other people will not trip it over Do not wear loose clothing that can be trapped in the moving parts of the machine Make sure that your sleeves are fastened or rolled up above your elbows If your hair is long fasten it Insert the ends of your necktie or scarf inside clothing or fasten it with t...

Page 7: ...ck Attention An electrical shock can occur only when there is a complete circuit By observing the above rule you may prevent a current from passing through your body When using testers set the controls correctly and use the approved probe leads and accessories for that tester Stand on suitable rubber mats obtained locally if necessary to insulate you from grounds such as metal floor strips and mac...

Page 8: ...f 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 from their normal operating places in a machine Power supply units Pumps Blowers and fans Motor generators and similar units This practice ensures correct grounding of the units If an electrical accident occurs Cau...

Page 9: ... determine whether there are any potential unsafe conditions use the following checklist at the beginning of every service task Begin the checks with the power off and the power cord disconnected Checklist 1 Check exterior covers for damage loose broken or sharp edges 2 Turn off the computer Disconnect the power cord 3 Check the power cord for a A third wire ground connector in good condition Use ...

Page 10: ...mat is especially useful when handling ESD sensitive devices Select a grounding system such as those listed below to provide protection that meets the specific service requirement Attach the ESD ground clip to any frame ground ground braid or green wire ground When working on a double insulated or battery operated system use an ESD common ground or reference point You can use coax or connector out...

Page 11: ... Austausch der Computer wieder angeschlossen wird muß sichergestellt werden daß keine Schrauben Federn oder andere Kleinteile fehlen oder im Gehäuse vergessen wurden Der Computer muß geschüttelt und auf Klappergeräusche geprüft werden Metallteile oder splitter können Kurzschlüsse erzeugen Prima di accendere l elaboratore dopo che é stata effettuata la sostituzione di una FRU accertarsi che tutte l...

Page 12: ...ten Sie darf nicht zerlegt wiederaufgeladen kurzgeschlossen oder Feuer oder Wasser ausgesetzt werden Bei der Entsorgung die örtlichen Bestimmungen für Sondermüll beachten Beim Ersetzen der Bereitschafts oder Systembatterie nur Batterien des Typs verwenden der in der Ersatzteilliste aufgeführt ist Der Einsatz falscher Batterien kann zu Entzündung oder Explosion führen Alcune batterie di riserva con...

Page 13: ...eschlossen oder Feuer oder Wasser ausgesetzt werden Bei der Entsorgung die örtlichen Bestimmungen für Sondermüll beachten Beim Ersetzen der Batterie nur Batterien des Typs verwenden der in der Ersatzteilliste aufgeführt ist Der Einsatz falscher Batterien kann zu Entzündung oder Explosion führen La batteria contiene piccole quantità di nichel Non smontarla gettarla nel fuoco o nell acqua né cortoci...

Page 14: ...ses Typs dürfen nicht aufgeladen zerlegt über 100 C erhitzt oder verbrannt werden Auch darf ihr Inhalt nicht mit Wasser in Verbindung gebracht oder der zur richtigen Polung angebrachte Verbindungsstecker entfernt werden Bei der Entsorgung die örtlichen Bestimmungen für Sondermüll beachten Beim Ersetzen der Batterie nur Batterien des Typs verwenden der in der Ersatzteilliste aufgeführt ist Der Eins...

Page 15: ...ten Der LCD Bildschirm besteht aus Glas und kann zerbrechen wenn er unsachgemäß behandelt wird oder der Computer auf den Boden fällt Wenn der Bildschirm beschädigt ist und die darin befindliche Flüssigkeit in Kontakt mit Haut und Augen gerät sollten die betroffenen Stellen mindestens 15 Minuten mit Wasser abgespült und bei Beschwerden anschließend ein Arzt aufgesucht werden Nel caso che caso l LCD...

Page 16: ...attery can produce enough current to burn personnel or combustible materials Bien que le voltage des batteries principales soit peu élevé le court circuit ou la mise à la masse d une batterie peut produire suffisamment de courant pour brûler des matériaux combustibles ou causer des brûlures corporelles graves Obwohl Hauptbatterien eine niedrige Spannung haben können sie doch bei Kurzschluß oder Er...

Page 17: ...et déconnectez tous les cordons d interface Die Stromzufuhr muß abgeschaltet alle Stromkabel aus der Steckdose gezogen der Akku entfernt und alle Verbindungskabel abgenommen sein bevor eine FRU entfernt wird Prima di rimuovere qualsiasi FRU spegnere il sistema scollegare dalle prese elettriche tutti i cavi di alimentazione rimuovere la batteria e poi scollegare i cavi di interconnessione Antes de ...

Page 18: ...evice could result in exposure to hazardous laser radiation There are no serviceable parts inside those drives Do not open Laser compliance statement CAUTION Use of controls or adjustments or performance of procedures other than those specified herein might result in hazardous radiation exposure O uso de controles ajustes ou desempenho de procedimentos diferentes daqueles aqui especificados pode r...

Page 19: ...luz Rayonnement laser si carter ouvert Évitez de fixer le faisceau de le regarder directement avec des instruments optiques ou de vous exposer au rayon Laserstrahlung bei geöffnetem Gerät Nicht direkt oder über optische Instrumente in den Laserstrahl sehen und den Strahlungsbereich meiden Kinyitáskor lézersugár Ne nézzen bele se szabad szemmel se optikai eszközökkel Kerülje a sugárnyalábbal való é...

Page 20: ...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 system 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 If an adapter or a device consists o...

Page 21: ...itive Improper handling can cause damage to those components and may cause a system malfunction Attention When handling a system board Do not drop the system board or apply any excessive force to it Avoid rough handling of any kind Avoid bending the system board and hard pushing to prevent cracking at each BGA Ball Grid Array chipset ...

Page 22: ...suppliers to be ready to support Lenovo s requirements and schedule in the EU Products sold in 2005 and 2006 will contain some RoHS compliant FRUs The following statement pertains to these products and any product Lenovo produces containing RoHS compliant FRUs RoHS compliant FRUs have unique FRU part numbers Before or after the RoHS implementation date failed RoHS compliant parts must always be re...

Page 23: ...ce might have been altered If you select an incorrect drive data or programs might be overwritten Replace an FRU only with another FRU of the correct model When you replace an FRU make sure that the machine model and the FRU part number are correct by referring to the FRU parts list An FRU should not be replaced just because of a single unreproducible failure Single failures can occur for a variet...

Page 24: ...rring to the following list The following are not covered under warranty LCD panel cracked from the application of excessive force or from being dropped Scratched cosmetic parts Distortion deformation or discoloration of the cosmetic parts Plastic parts latches pins or connectors that have been cracked or broken by excessive force Damage caused by liquid spilled into the system Damage caused by th...

Page 25: ...e internal battery status on page 22 Checking the Computer AC Charger When you use the computer AC Charger to charge the tablet but no power is charged see the instructions in this topic to check the computer AC Charger To check the computer AC Charger do the following 1 Disconnect the micro USB cable from the tablet 2 Measure the output voltage across the connector marked B of the micro USB cable...

Page 26: ...ccurate information about the battery status To get the accurate information about the battery status of the tablet do the following 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 Pull down the application icon from the action b...

Page 27: ...e power consumption the computer has three power management modes screen blank sleep standby and hibernation Activating Deactivating the Display With the display deactivated press the Power button on the computer to activate the display The computer display will then illuminate indicating that it has been activated If you do not need to use your computer temporarily you can press the Power button ...

Page 28: ...sion 466g LTE versions 472g System CPU N A Platform Chipset Qualcomm Sandragon APQ8009 HD edition WiFi version Qualcomm Snapdragon MSM8909 HD edition LTE versions Graphic Chipset Andero 304 RAM LP DDR3 1GB Storage Capacity 16GB LCD 8 0 IPS 800 x 1 280 pixels Camera Rotated camera 8 0Mega pixels Battery Li ion battery 6 200 6 400mAh Operating System Android 5 1 or later versions Network GSM UMTS TD...

Page 29: ...ket only WCDMA Band 1 2 4 5 8 LTE versions only ROW TD SCDMA Band 34 39 LTE versions only China Market only FDD LTE Band 1 3 7 LTE versions only China Market only FDD LTE Band 1 3 4 5 7 8 19 20 LTE versions only ROW TDD LTE Band 38 39 40 41 LTE versions only China Market only TDD LTE Band 38 40 LTE versions only ROW Bluetooth 3 0 and 4 0 GPS GLONASS AGPS LTE versions only Beidou Voice call LTE voi...

Page 30: ...Lenovo YT3 850 Hardware Maintenance Manual 26 Front view Left speaker Right speaker Components location a ...

Page 31: ...Lenovo YT3 850 27 Rear view Audio Jack Microphone SIM card slot for LTE versions only Micro SD card slot Volume key Micro USB connection Power key Rotated camera Hinge frame latch k ...

Page 32: ... parts FRUs list on page 28 Screws list on page 31 FRUs list Parts list Note The listed technical data is applicable to all versions of the product i e the WiFi version Lenovo TY3 850F the LTE data version Lenovo TY3 850L and the LTE voice version Lenovo TY3 850M unless otherwise specified ...

Page 33: ...Lenovo YT3 850 29 ...

Page 34: ...vo YT3 850 metal piece for fixing the battery FPC 5M88C02833 N 8 Lenovo YT3 850 metal piece for fastening the battery and camera FPC 5M88C02832 N 9 Lenovo YT3 850 main board Lenovo YT3 850F 5B28C02839 16G Lenovo YT3 850L 5B28C03457 16G Lenovo YT3 850M 5B28C03456 16G N 10 Lenovo YT3 850 vibrator 5M78C02825 N 11 Lenovo YT3 850 volume key 5B68C02816 N 12 Lenovo YT3 850 USB and volume key FPC 5F78C028...

Page 35: ...P N CRU ID Phillips cross head screw M1 4 1 8 wide head 5M88C02828 N Phillips cross head screw M1 4 2 0 5M88C02829 N Phillips cross head screw M1 4 4 0 5M88C02830 N Phillips cross head screw M1 4 3 0 5M89A6N1KD N Phillips cross head screw ST1 4 3 0 5M88C02831 N ...

Page 36: ...bag Always use new screws Use a torque screwdriver if you have one Tighten screws as follows Plastic to plastic Turn an additional 90 after the screw head touches the surface of the plastic part Logic card to plastic Turn an additional 180 after the screw head touches the surface of the logic card Torque driver If you have a torque screwdriver refer to the Torque column for each step Make sure tha...

Page 37: ...he arrow in the figure 7 To put the new FRU in place reverse the removal procedures and follow any of the notes that pertain to replacement For information about connecting and arranging internal cables see Components location on page 26 8 When replacing an FRU use the correct screw as specified in the procedures Attention After replacing an FRU do not turn on the computer until you have made sure...

Page 38: ...Lenovo YT3 850 Hardware Maintenance Manual 34 1010 Rear cover 1 Open the hinge frame Figure 1 1 Opening the hinge frame 2 Remove the card slot cover Figure 1 2 Removing the card slot cover ...

Page 39: ...ear cover 4 Hold the tablet in one hand and use a triangle paddle to unlock the rear cover from the top middle of the tablet along the joint line as shown in the figure below Figure 1 4 Unlocking the rear cover from the main body along the joint line Part No Screw quantity Color Torque M1 4 2 0 3 Silver N A a a ...

Page 40: ...cover Figure 1 5 The removed rear cover CAUTION Handle with care The rear cover or its locks can be damaged Do not try to lift the rear cover off the tablet when it is tightly locked or conglutinated at some places Use a thin blade to unlock or seperate these places first ...

Page 41: ...cess remove the following FRU 1010 Rear cover on page 34 1 Remove screws on the metal piece for fixing the battery FPC as shown in the figure below Figure 2 1 The screws on the metal piece for fixing the battery FPC Part No Screw quantity Color Torque M1 4 2 0 2 Silver N A a a ...

Page 42: ...Remove the metal piece using a pair of tweezers Figure 2 2 Removing the metal piece 3 Disconnect the power supply to the tablet by detaching the battery FPC from its connector on the main board Figure 2 3 Disconnecting the power supply of the tablet ...

Page 43: ...ow Figure 2 4 The screws on the holder of the rotated camera 5 Remove screws on the left speaker unit as shown in the figure below Figure 2 5 The screws on the left speaker unit Part No Screw quantity Color Torque M1 4 3 0 2 Black N A Part No Screw quantity Color Torque M1 4 4 0 2 Blue N A a a a a ...

Page 44: ... FPC connector of the rotated camera from the main board Figure 2 6 Detaching the FPC connector of the rotated camera 7 Unlock the connector of the power key FPC on the main board using a triangle paddle Figure 2 7 Unlocking the connector of the power key FPC ...

Page 45: ...ing a pair of tweezers Figure 2 8 Pulling out the power key FPC 9 Gently push the rotated camera assembly and at the same time push the left speaker unit in the direction as shown in the figure below Figure 2 9 Removing the left speaker assembly unit with power key FPC ...

Page 46: ...Lenovo YT3 850 Hardware Maintenance Manual 42 Figure 2 10 The removed left speaker assembly unit with power key FPC ...

Page 47: ...following FRU 1010 Rear cover on page 34 1 Remove screws on the metal piece for fixing the battery FPC as shown in the figure below Figure 3 1 The screws on the metal piece for fixing the battery FPC Part No Screw quantity Color Torque M1 4 2 0 2 Silver N A a a ...

Page 48: ...Remove the metal piece using a pair of tweezers Figure 3 2 Removing the metal piece 3 Disconnect the power supply to the tablet by detaching the battery FPC from its connector on the main board Figure 3 3 Disconnecting the power supply of the tablet ...

Page 49: ...ow Figure 3 4 The screws on the holder of the rotated camera 5 Remove screws on the left speaker unit as shown in the figure below Figure 3 5 The screws on the left speaker unit Part No Screw quantity Color Torque M1 4 3 0 2 Black N A Part No Screw quantity Color Torque M1 4 4 0 2 Blue N A a a a a ...

Page 50: ... FPC connector of the rotated camera from the main board Figure 3 6 Detaching the FPC connector of the rotated camera 7 Unlock the connector of the power key FPC on the main board using a triangle paddle Figure 3 7 Unlocking the connector of the power key FPC ...

Page 51: ...its connector using a pair of tweezers Figure 3 8 Pulling out the power key FPC 9 Gently push the rotated camera assembly and at the same time push the left speaker unit in the direction as shown in the figure below Figure 3 9 Removing the rotated camera ...

Page 52: ...Lenovo YT3 850 Hardware Maintenance Manual 48 Figure 3 10 The removed rotated camera ...

Page 53: ...ach the following FPC from the main board Battery FPC see Step 1 on page 37 to Step 3 on page 38 in 1020 Left speaker assembly unit with power key FPC 1 Remove screws on the hinge frame latch as shown in the figure below Figure 4 1 The screws on the hinge latch Part No Screw quantity Color Torque M1 4 2 0 4 Silver N A a a ...

Page 54: ...Lenovo YT3 850 Hardware Maintenance Manual 50 2 Remove the hinge frame latch Figure 4 2 Removing the hinge frame latch Figure 4 3 The removed hinge frame latch ...

Page 55: ...ver on page 34 and Detach the following FPC from the main board Battery FPC see Step 1 on page 37 to Step 3 on page 38 in 1020 Left speaker assembly unit with power key FPC 1 Remove screws on the right speaker as shown in the figure below Figure 5 1 The screws on the right speaker Part No Screw quantity Color Torque M1 4 4 0 2 Blue N A a a ...

Page 56: ... Manual 52 2 Detach the right speaker unit from the front module of the tablet Figure 5 2 Detaching the right speaker unit 3 Detach the microphone using a pair of tweezers as shown in the figure below Figure 5 3 Detaching the microphone ...

Page 57: ...the right speaker FPC on the main board using a triangle paddle Figure 5 4 Unlocking the connector of the right speaker FPC 5 Pull out the right speaker FPC from its connector using a pair of tweezers Figure 5 5 Pulling out the right speaker FPC ...

Page 58: ...Lenovo YT3 850 Hardware Maintenance Manual 54 Figure 5 6 The removed right speaker assembly unit with microphone and audio jack ...

Page 59: ...r fastening the battery and camera FPC as shown in the figure below Figure 6 1 The screws on the metal piece for fastening the battery and camera FPC Part No Screw quantity Color Torque M1 4 2 0 1 Silver N A CAUTION Risk of explosion if the battery is replaced with an incorrect type When replacing the lithium battery use only the same or an equivalent type that is recommended by the manufacturer T...

Page 60: ...enovo YT3 850 Hardware Maintenance Manual 56 2 Remove the metal piece Figure 6 2 Removing the metal piece 3 Slowly pull out the hinge pivot using a pair of tweezers Figure 6 3 Pulling out the hinge pivot ...

Page 61: ...ry pack clockwise around its right end so as to steer the battery FPC out through the supporting frame at the right end and then remove the battery pack from the main body of the tablet Figure 6 4 Detaching the battery pack at the left end Figure 6 5 Removing the battery pack ...

Page 62: ...nual 58 Figure 6 6 The removed battery pack To further remove the battery cell continue with the following steps 5 Peel off the foil on the battery cover at the FPC end of the hinge frame Figure 6 7 Peeling off the foil on the battery cover ...

Page 63: ... battery cover as shown in the figure below Figure 6 8 The screw on the battery cover 7 Remove the battery cover as shown in the figure below Figure 6 9 Removing the battery cover Part No Screw quantity Color Torque ST1 4 3 0 1 Black N A a a ...

Page 64: ...Lenovo YT3 850 Hardware Maintenance Manual 60 8 Remove the battery pack from the hinge frame Figure 6 10 Removing the battery cell Figure 6 11 The removed battery cell ...

Page 65: ... and Detach the following FPC from the main board Battery FPC see Step 1 on page 37 to Step 3 on page 38 in 1020 Left speaker assembly unit with power key FPC 1 Unlock the connector of the LCD FPC on the main board using a triangle paddle Figure 7 1 Unlocking the connector of the LCD FPC main board side ...

Page 66: ...s connector on the main board using a pair of tweezers Figure 7 2 Pulling out the LCD FPC from the main board side 3 Unlock the connector of the LCD FPC on the front module of the tablet using a triangle paddle Figure 7 3 Unlocking the connector of the LCD FPC front module side ...

Page 67: ...Lenovo YT3 850 63 4 Remove the LCD FPC from its connector on the front module Figure 7 4 Removing the LCD FPC from the front module side Figure 7 5 The removed LCD FPC ...

Page 68: ...board Battery FPC see Step 1 on page 37 to Step 3 on page 38 in 1020 Left speaker assembly unit with power key FPC 1 Desolder the wires of the vibrator motor from the main board at the position shown in the figure below Figure 8 1 Position for desoldering the wires of the vibrator motor 2 Detach the vibrator motor from its seat Figure 8 2 Detaching the vibrator motor ...

Page 69: ...Lenovo YT3 850 65 Figure 8 3 The removed vibrator motor ...

Page 70: ...age 62 in 1070 LCD FPC Vibrator motor wire connections see Step 1 on page 64 in 1080 Vibrator motor 1 Unlock the connector of the TP FPC on the main board using a triangle paddle as shown in the figure below Figure 9 1 Unlocking the connector of the TP FPC Important notices for handling PCB When handling PCB bear the following in mind Be careful not to drop the PCB onto a bench top that has a hard...

Page 71: ... its unlocked connector using a pair of tweezers Figure 9 2 Pulling out the TP FPC 3 Detach the connector of the USB and volume key FPC from the main board using a pair of tweezers Figure 9 3 Detaching the connector of the USB and volume key FPC ...

Page 72: ...tor on the main board at the position shown in the figure below Figure 9 4 Positions for disconnecting the antennas 5 Remove screws on the main board as shown in the figure below Figure 9 5 The screws on the main board Part No Screw quantity Color Torque M1 4 1 8 wide head 6 Silver N A a a ...

Page 73: ...Lenovo YT3 850 69 6 Remove the main board Figure 9 6 Removing the main board Figure 9 7 The removed main board ...

Page 74: ...tep 4 on page 53 to Step 5 on page 53 in 1050 Right speaker assembly unit with microphone and audio jack LCD FPC see Step 1 on page 61 and Step 2 on page 62 in 1070 LCD FPC Vibrator motor see Step 1 on page 64 in 1080 Vibrator motor TP FPC see Step 1 on page 66 to Step 2 on page 67 in 1090 Main board Antenna cables see Step 4 on page 68 in 1090 Main board 1 Detach the connector of the USB and volu...

Page 75: ...shown in the figure below Figure 10 2 The screws on the main board 3 Remove the main board attached with vibrator motor Figure 10 3 Removing the main board attached with vibrator motor Part No Screw quantity Color Torque M1 4 1 8 wide head 6 Silver N A a a ...

Page 76: ...he USB and volume key FPC from its seat as shown in the figure below Figure 10 4 Detaching the USB and volume key FPC from its seat 5 Detach the USB and volume key FPC from the side of the tablet front module Figure 10 5 Detaching the USB and volume key FPC ...

Page 77: ...Lenovo YT3 850 73 Figure 10 6 The removed USB and volume key FPC ...

Page 78: ...74 1110 Volume key For access remove the following FRU 1010 Rear cover on page 34 1 Detach the volume key at the positions shown in the figure below Figure 11 1 Detaching the volume key 2 Remove the volume key Figure 11 2 Removing the volume key ...

Page 79: ...Lenovo YT3 850 75 Figure 11 3 The removed volume key ...

Page 80: ... Maintenance Manual 76 1120 Power button For access remove the following FRU 1010 Rear cover on page 34 1 Remove the power button from the rear cover Figure 12 1 Removing the power button Figure 12 2 The removed power button ...

Page 81: ...ee Step 4 on page 53 to Step 5 on page 53 in 1050 Right speaker assembly unit with microphone and audio jack LCD FPC see Step 1 on page 61 and Step 2 on page 62 in 1070 LCD FPC Vibrator motor see Step 1 on page 64 in 1080 Vibrator motor TP FPC see Step 1 on page 66 to Step 2 on page 67 in 1090 Main board 1 Remove screws on the main antenna as shown in the figure below Figure 13 1 The screw on the ...

Page 82: ...nector on the main board at the position shown in the figure below Figure 13 2 Positions for disconnecting the antennas 3 Remove screws on the main board as shown in the figure below Figure 13 3 The screws on the main board Part No Screw quantity Color Torque M1 4 1 8 wide head 6 Silver N A a a ...

Page 83: ...Lenovo YT3 850 79 4 Detach the main board Figure 13 4 Detaching the main board 5 Remove the main antenna Figure 13 5 Removing the antenna ...

Page 84: ...Lenovo YT3 850 Hardware Maintenance Manual 80 Figure 13 6 The removed antenna ...

Page 85: ...r FPC see Step 4 on page 53 to Step 5 on page 53 in 1050 Right speaker assembly unit with microphone and audio jack LCD FPC see Step 1 on page 61 and Step 2 on page 62 in 1070 LCD FPC Vibrator motor see Step 1 on page 64 in 1080 Vibrator motor TP FPC see Step 1 on page 66 to Step 2 on page 67 in 1090 Main board 1 Disconnect the diversity antenna cable from its connector on the main board at the po...

Page 86: ...n in the figure below Figure 15 1 The screw on the antenna 3 Remove screws on the main board as shown in the figure below Figure 15 2 The screws on the main board Part No Screw quantity Color Torque M1 4 2 0 2 Silver N A Part No Screw quantity Color Torque M1 4 1 8 wide head 6 Silver N A a a a a ...

Page 87: ...Lenovo YT3 850 83 4 Detach the main board Figure 15 3 Detaching the main board 5 Remove the diversity antenna Figure 15 4 Removing the antenna ...

Page 88: ...Lenovo YT3 850 Hardware Maintenance Manual 84 Figure 15 5 The removed antenna ...

Page 89: ... information could include technical inaccuracies or typographical errors Changes are periodically made to the information herein these changes will be incorporated in new editions of the publication Lenovo may make improvements and or changes in the product s and or the program s described in this publication at any time without notice The products described in this document are not intended for ...

Page 90: ...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 Users of this document should verify the applicable data for their specific environment Lenovo and the Lenovo logo are trademarks of Lenovo in the United States or other countries or both Other company ...