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Lenovo PHAB Hardware Maintenance Manual

16

This chapter presents the following important service information:
• “Strategy for replacing FRUs” on page 16

—

“Important notice for replacing a system board” on page 17

• “Important information about replacing RoHS compliant FRUs” on page 18

Before replacing parts:

Make sure that all software fixes, drivers, and BIOS downloads are installed
before replacing any FRUs listed in this manual.

After a system board is replaced, ensure that the latest BIOS is loaded to the
system board before completing the service action.

To download software fixes, drivers, and BIOS, follow the steps below:

1.

Go to http://consumersupport.lenovo.com/.

2.

Enter a serial number or select a product or use Lenovo smart downloading.

3.

Select the BIOS/Driver/Applications and download.

4.

Follow the directions on the screen and install the necessary software.

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 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 of more than one FRU, any of the FRUs may

be the cause of the error. Before replacing the adapter or device, remove the
FRUs one by one to see if the symptoms change. Replace only the FRU that
changed the symptoms.

Attention:

The setup configuration on the computer you are servicing may have

been customized. Running Automatic Configuration may alter the settings. Note
the current configuration settings (using the View Configuration option); then,
when service has been completed, verify that those settings remain in effect.

Important service information

Important:

BIOS and device driver fixes are customer-installable. The BIOS and device
drivers are posted on the customer support site:
http://consumersupport.lenovo.com/.

Strategy for replacing FRUs

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Содержание PB1-750M

Страница 1: ...Lenovo PHAB Hardware Maintenance Manual Lenovo PB1 750M Lenovo PB1 750N Lenovo PB1 750P ...

Страница 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...

Страница 3: ...checkout 21 Checking the Computer AC Charger 21 Checking the internal battery status 22 Related service information 23 Security 23 Power management 23 Activating Deactivating the Display 23 Lenovo PHAB 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 Rea...

Страница 4: ... information required 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...

Страница 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 ...

Страница 6: ...rom 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 the...

Страница 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...

Страница 8: ... 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 Caut...

Страница 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 ...

Страница 10: ...t 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 outsi...

Страница 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...

Страница 12: ...n 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 conte...

Страница 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...

Страница 14: ...s 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 Einsat...

Страница 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...

Страница 16: ...tery 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 Erdu...

Страница 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 ...

Страница 18: ...ice 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 res...

Страница 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...

Страница 20: ...ervicing 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 of...

Страница 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 ...

Страница 22: ...uppliers 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 rep...

Страница 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...

Страница 24: ...ing 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 the ...

Страница 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...

Страница 26: ...urate 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 bar...

Страница 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 ...

Страница 28: ... lists the specifications of the Lenovo PHAB Table 1 Specifications Feature Description Size Weight Size 188mm x 97 7mm x 8 9mm Weight 258g System CPU 1 2GHz Hardware Platform Qualcomm MSM8916 RAM 1GB 2GB Storage Capacity 16GB 32GB LCD 6 98 1 280 x 720 pixels IPS Integrated Camera Rear camera 13 0Mega pixels Auto Focus Front camera 5 0Mega pixels Fixed Focus Battery Li ion battery 4 250mAh Operati...

Страница 29: ... Market only TD SCDMA Band 34 39 China Market only FDD LTE Band 1 3 7 China Market only FDD LTE Band 1 2 3 4 7 8 20 ROW TDD LTE Band 38 39 40 41 Band 41 narrow band 100M China Market only TDD LTE Band 38 40 ROW Bluetooth 4 0 A GPS support GPS Glonass Beidou Voice call FM radio Others Flash light Speaker Microphone Gravity sensor Proximity senor Light sensor E compass Hall sensor Vibration Dolby At...

Страница 30: ...Lenovo PHAB Hardware Maintenance Manual 26 Front view Microphone Receiver Front camera Audio jack Components location ...

Страница 31: ...Lenovo PHAB 27 Rear view Rear camera LED Flash Volume key Power key Speaker Microphone Micro USB connection Dual micro SIM card slot j k l ...

Страница 32: ...Lenovo PHAB Hardware Maintenance Manual 28 This section presents the following service parts FRUs list on page 28 Screws list on page 31 FRUs list Parts list ...

Страница 33: ...Lenovo PHAB 29 ...

Страница 34: ...AB main board assembly with side key FPC and vibrator 5B28C03730 RAM 1G Storage 16G N Lenovo PHAB side key FPC 5F78C03745 N Lenovo PHAB vibrator 5M78C03742 N 8 Lenovo PHAB antenna PCB 5P68C03747 N 9 Lenovo PHAB rear camera SC28C03593 N 10 Lenovo PHAB front camera SC29A6N34S N 11 Lenovo PHAB metal piece for fixing battery FPC 5M88C03734 N 12 Lenovo PHAB USB board 5P68C03744 N 13 Lenovo PHAB speaker...

Страница 35: ...Lenovo PHAB 31 Screws list Table 2 Parts list Screw FRU P N CRU ID Phillips cross head screw M1 4 2 4 5M88C03748 N Phillips cross head screw S1 4 3 5 5M88C03749 N ...

Страница 36: ...g 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 that ...

Страница 37: ... 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 t...

Страница 38: ...de key 1 Insert a SIM eject tool or an uncoiled paperclip to eject the SIM card tray from its slot Figure 1 1 Inserting a SIM eject tool into SIM card tray hole 2 Remove the SIM card try from its slot as shown in the figure below Figure 1 2 Removing the SIM card try ...

Страница 39: ...and and use a triangle paddle to unlock the rear cover from the tablet along the joint line as shown in the figure below Figure 1 3 The screws on the rear cover 4 Slowly remove the rear cover Figure 1 4 The removed rear cover side key attached ...

Страница 40: ...36 To further remove the side key continue with the following steps 5 Detach the volume key using a pair of pointed tweezers as shown in the figure below Figure 1 5 Detaching the side key 6 Remove the side key Figure 1 6 Removing the side key ...

Страница 41: ...Lenovo PHAB 37 Figure 1 7 The removed rear cover and side key ...

Страница 42: ...Part No Screw quantity Color Torque M1 4 2 4 2 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 The battery contains lithium and can explode if not properly used handled or disposed of Dispose of the used battery according to the instructions Do n...

Страница 43: ...ovo PHAB 39 2 Remove the metal piece using a pair of tweezers Figure 2 2 Removing the metal piece 3 Disconnect the battery FPC from its connector on the main board Figure 2 3 Disconnecting the battery FPC ...

Страница 44: ...o PHAB Hardware Maintenance Manual 40 4 Detach the battery pack from the front housing using a flat blade Figure 2 4 Detaching the battery pack 5 Remove the battery pack Figure 2 5 Removing the battery pack ...

Страница 45: ...Lenovo PHAB 41 Figure 2 6 The removed battery pack ...

Страница 46: ... in order 1010 Rear cover and side key on page 34 and Detach the following FPC from the main board Battery FPC see Step 1 on page 38 to Step 3 on page 39 in 1020 Battery pack 1 Detach the connector of the rear camera FPC from the main board Figure 3 1 Detaching the connector of the rear camera FPC ...

Страница 47: ...Lenovo PHAB 43 2 Remove the rear camera from its seat as shown in the figure below Figure 3 2 Removing the rear camera Figure 3 3 The removed rear camera ...

Страница 48: ...owing FRUs in order 1010 Rear cover and side key on page 34 and Detach the following FPC from the main board Battery FPC see Step 1 on page 38 to Step 3 on page 39 in 1020 Battery pack 1 Detach the connector of the front camera FPC from the main board Figure 4 1 Removing the front camera ...

Страница 49: ...Lenovo PHAB 45 2 Remove the front camera from its seat as shown in the figure below Figure 4 2 Removing the front camera Figure 4 3 The removed front camera ...

Страница 50: ...r and side key on page 34 and Detach the following FPC from the main board Battery FPC see Step 1 on page 38 to Step 3 on page 39 in 1020 Battery pack 1 Desolder the wires of the vibrator motor from the main board at the positions shown in the figure below Figure 5 1 Positions for desoldering the wires of the vibrator motor ...

Страница 51: ...Lenovo PHAB 47 2 Detach the vibrator motor from its seat Figure 5 2 Detaching the vibrator motor Figure 5 3 The removed vibrator motor ...

Страница 52: ...ear cover and side key on page 34 and Detach the following FPC from the main board Battery FPC see Step 1 on page 38 to Step 3 on page 39 in 1020 Battery pack 1 Detach the antenna cable from its connector on the antenna board using a pair of pointed tweezers Figure 6 1 Detaching the antenna cable antenna board side ...

Страница 53: ...Lenovo PHAB 49 2 Detach the antenna board from its seat Figure 6 2 Detaching the antenna board Figure 6 3 The removed antenna board ...

Страница 54: ... side key on page 34 1020 Battery pack on page 38 1 Desolder the wires of the speaker from the USB board at the positions shown in the figure below Figure 7 1 Positions for desoldering the wires of the speaker 2 Remove the speaker box using a triangle paddle as shown in the figure below Figure 7 2 Removing the speaker box ...

Страница 55: ...Lenovo PHAB 51 Figure 7 3 The removed speaker box ...

Страница 56: ...ge 34 1020 Battery pack on page 38 1 Detach the speaker box from the front housing using a triangle paddle as shown in the figure below Figure 8 1 Detaching the speaker box 2 Remove the conductive tape on the connector of the main FPC at the USB board side as shown in the figure below Figure 8 2 Removing the conductive tape USB board side ...

Страница 57: ...or of the main FPC on the USB board using a triangle paddle Figure 8 3 Unlocking the connector of the main FPC USB board side 4 Pull out the main FPC from its connector on the USB board Figure 8 4 Pulling out the main FPC USB board side ...

Страница 58: ...oard at the positions shown in the figure below to remove the speaker Figure 8 5 Positions for desoldering the wires of the speaker 6 Remove screws on the USB board as shown in the figure below Figure 8 6 The screws on the USB board Part No Screw quantity Color Torque S1 4 3 5 2 Silver N A a a ...

Страница 59: ...Lenovo PHAB 55 7 Remove the USB bard Figure 8 7 Removing the USB board Figure 8 8 The removed USB board ...

Страница 60: ...ess remove the following FRUs in order 1010 Rear cover and side key on page 34 1020 Battery pack on page 38 1 Detach the connector of the main FPC from the main board Figure 9 1 Detaching the main FPC main board side Figure 9 2 Detaching the main FPC main board side ...

Страница 61: ...ing using a triangle paddle as shown in the figure below Figure 9 3 Detaching the speaker box 3 Remove the conductive tape on the connector of the main FPC at the USB board side as shown in the figure below Figure 9 4 Removing the conductive tape USB board side ...

Страница 62: ...ck the connector of the main FPC on the USB board using a triangle paddle Figure 9 5 Unlocking the connector of the main FPC USB board side 5 Pull out the main FPC from its connector on the USB board Figure 9 6 Pulling out the main FPC USB board side ...

Страница 63: ...n FPC at the front housing side as shown in the figure below Figure 9 7 Removing the conductive tape front housing side 7 Unlock the connector of the main FPC on the front housing using a triangle paddle Figure 9 8 Unlocking the connector of the main FPC front housing side ...

Страница 64: ...HAB Hardware Maintenance Manual 60 8 Pull out the main FPC from its connector on the front housing Figure 9 9 Pulling out the main FPC front housing side 9 Remove the main FPC Figure 9 10 Removing the main FPC ...

Страница 65: ...Lenovo PHAB 61 Figure 9 11 The removed main FPC ...

Страница 66: ... in order 1010 Rear cover and side key on page 34 and Detach the following FPC from the main board Battery FPC see Step 1 on page 38 to Step 3 on page 39 in 1020 Battery pack 1 Detach the connector of the SIM board FPC from the main board Figure 10 1 Detaching the connector of the SIM board FPC ...

Страница 67: ...Lenovo PHAB 63 2 Detach the SIM board from the front housing Figure 10 2 Detaching the SIM board 3 Remove the SIM board Figure 10 3 Removing the SIM board ...

Страница 68: ...Lenovo PHAB Hardware Maintenance Manual 64 Figure 10 4 The removed SIM board ...

Страница 69: ...34 1020 Battery pack on page 38 1030 Rear camera on page 42 1040 Front camera on page 44 1050 Vibrator motor on page 46 and Detach the following FPC from the main board SIM board FPC see Step 1 on page 62 in 1100 SIM Board 1 Detach the antenna cable from its connector on the main board Figure 11 1 Detaching the antenna cable main board side ...

Страница 70: ...C from the side of the front housing as shown in the figure below Figure 11 2 Detaching the side key FPC 3 Remove screws at the positions as shown in the figure below Figure 11 3 The screws on the main board Part No Screw quantity Color Torque M1 4 2 4 2 Silver N A a a ...

Страница 71: ...Lenovo PHAB 67 4 Lift up the main board assembly and remove it as shown in the figure below Figure 11 4 Removing the main board assembly Figure 11 5 The removed the main board assembly ...

Страница 72: ...r 1010 Rear cover and side key on page 34 1020 Battery pack on page 38 1030 Rear camera on page 42 1040 Front camera on page 44 1110 Main board assembly with side key FPC on page 65 1 Remove the receiver using a pair of pointed tweezers Figure 12 1 Removing the receiver Figure 12 2 The removed receiver ...

Страница 73: ... 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 ...

Страница 74: ...d 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 pr...

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