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Hardware Maintenance Manual
Lenovo PB1-750M
Lenovo PB1-750N
Lenovo PB1-750P

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   Summary of Contents for Lenovo PB1-750M

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    Lenovo PHAB Hardware Maintenance Manual Lenovo PB1-750M Lenovo PB1-750N Lenovo PB1-750P...

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    First Edition (Oct 2015) © Copyright Lenovo 2015. 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.

  • Page 3: Table Of Contents

    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 ..............

  • Page 4: About This Manual

    This manual is intended only for trained servicers who are familiar with Lenovo products. Use this manual to troubleshoot problems effectively. Before servicing a Lenovo product, make sure to read all the information under “Safety information” on page 1 and “Important service information”...

  • Page 5: Safety 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 •...

  • Page 6: General Safety

    Lenovo PHAB 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.

  • Page 7: Electrical Safety

    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.

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    Lenovo PHAB 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.

  • Page 9: Safety Inspection Guide

    4. Check for cracked or bulging batteries. 5. Remove the cover. 6. Check for any obvious non-Lenovo alterations. Use good judgment as to the safety of any non-Lenovo alterations. 7. Check inside the unit for any obvious unsafe conditions, such as metal filings, contamination, water or other liquids, or signs of fire or smoke damage.

  • Page 10: Handling Devices That Are Sensitive To Electro Static Discharge

    Lenovo PHAB 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.

  • Page 11: Safety Notices: Multilingual Translations

    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.

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    Lenovo PHAB 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.

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    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.

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    Lenovo PHAB 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.

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    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.

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    Lenovo PHAB 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.

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    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.

  • Page 18: Laser Compliance Statement

    Lenovo PHAB 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.

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    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.

  • Page 20: Important Service Information

    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.

  • Page 21: Important Notice For Replacing A System Board

    Important service information Important notice for replacing a system board Some components mounted on a system board are very sensitive. Improper handling can cause damage to those components, and may cause a system malfunction. Attention: When handling a system board: •...

  • Page 22: Compliant Frus

    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.

  • Page 23: General Checkout

    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: •...

  • Page 24: What To Do First

    Lenovo PHAB 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.

  • Page 25: Power System Checkout

    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.

  • Page 26: Checking The Internal Battery Status

    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 and then touch Settings.

  • Page 27: Related Service Information

    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 (LTE version only), PASSWORDS, DEVICE ADMINISTRATION and CREDENTIAL STORAGE.

  • Page 28: Lenovo Phab

    • “Parts list” on page 28 • “FRU replacement notices” on page 32 • “Removing and replacing an FRU” on page 33 Specifications The following table lists the specifications of the Lenovo PHAB. Table 1. Specifications Feature Description Size & Weight Size •...

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    Lenovo PHAB Ports • Micro-USB (USB 2.0), 5-pin • Combo audio jack, 3.5mm (with audio and microphone) • Dual micro SIM card slot Communication • WiFi: 802.11a/b/g/n dual-band • GSM/EDGE: Band 2/3/5/8 • WCDMA: Band 1/2/5/8 • CDMA/EVDO: Band CO (China Market only) •...

  • Page 30: Components Location

    Lenovo PHAB Hardware Maintenance Manual Components location Front view Microphone Receiver Front camera Audio jack...

  • Page 31: Rear View

    Lenovo PHAB Rear view Rear camera LED Flash Volume key Power key Speaker Microphone Micro-USB connection Dual micro SIM card slot...

  • Page 32: Parts List, Frus List

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

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    Lenovo PHAB...

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    Lenovo PHAB Hardware Maintenance Manual Table 1. FRUs list–Overall No. FRU FRU No. CRU ID Lenovo PHAB rear cover 5S58C03731 (ebony) 5S58C03732 (white) 5S58C03733 (blue) 5S58C03752 (red) Lenovo PHAB front housing (TP 5D68C03728 (ebony/red) LCM assembly) 5D68C03729 (white/blue) Lenovo PHAB battery pack...

  • Page 35: Screws List

    Lenovo PHAB Screws list Table 2. Parts list–Screw CRU ID Phillips cross head screw, M1.4 × 2.4 5M88C03748 Phillips cross head screw, S1.4 × 3.5 5M88C03749...

  • Page 36: 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 Lenovo computers, this problem is addressed with special nylon-coated screws that have the following characteristics: •...

  • Page 37: Removing And Replacing An Fru

    Lenovo PHAB 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.

  • Page 38: Rear Cover And Side Key

    Lenovo PHAB Hardware Maintenance Manual 1010 Rear cover and side key Insert a SIM eject tool or an uncoiled paperclip to eject the SIM card tray from slot. Figure 1-1. Inserting a SIM eject tool into SIM card tray hole 2.

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    Lenovo PHAB 3. Hold the tablet in one hand 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.

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    Lenovo PHAB Hardware Maintenance Manual 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.

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    Lenovo PHAB Figure 1-7. The removed rear cover and side key...

  • Page 42: Battery Pack

    Lenovo PHAB Hardware Maintenance Manual 1020 Battery pack For access, remove the following FRU: • Rechargeable Battery Notice 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.

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    Lenovo PHAB 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...

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    Lenovo PHAB Hardware Maintenance Manual 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...

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    Lenovo PHAB Figure 2-6. The removed battery pack...

  • Page 46: Rear Camera

    Lenovo PHAB Hardware Maintenance Manual 1030 Rear camera For access, remove the following FRUs in order: • “1010 Rear cover and side key” on page 34 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”)

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    Lenovo PHAB 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...

  • Page 48: Front Camera

    Lenovo PHAB Hardware Maintenance Manual 1040 Front camera For access, remove the following FRUs in order: • “1010 Rear cover and side key” on page 34 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”)

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    Lenovo PHAB 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...

  • Page 50: Vibrator Motor

    Lenovo PHAB Hardware Maintenance Manual 1050 Vibrator motor For access, remove the following FRUs in order: • “1010 Rear cover and side key” on page 34 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”)

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    Lenovo PHAB 2. Detach the vibrator motor from its seat. Figure 5-2. Detaching the vibrator motor Figure 5-3. The removed vibrator motor...

  • Page 52: Antenna Board

    Lenovo PHAB Hardware Maintenance Manual 1060 Antenna board For access, remove the following FRUs in order: • “1010 Rear cover and side key” on page 34 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”)

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    Lenovo PHAB 2. Detach the antenna board from its seat. Figure 6-2. Detaching the antenna board Figure 6-3. The removed antenna board...

  • Page 54: Speaker

    Lenovo PHAB Hardware Maintenance Manual 1070 Speaker For access, remove the following FRUs in order: • “1010 Rear cover and 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.

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    Lenovo PHAB Figure 7-3. The removed speaker box...

  • Page 56: Usb Board

    Lenovo PHAB Hardware Maintenance Manual 1080 USB board For access, remove the following FRUs in order: • “1010 Rear cover and side key” on page 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.

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    Lenovo PHAB 3. Unlock the connector 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.

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    Lenovo PHAB Hardware Maintenance Manual 5. Desolder the wires of the speaker from the USB board 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.

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    Lenovo PHAB 7. Remove the USB bard. Figure 8-7. Removing the USB board Figure 8-8. The removed USB board...

  • Page 60: Main Fpc

    Lenovo PHAB Hardware Maintenance Manual 1090 Main FPC For access, 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.

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    Lenovo PHAB 2. Detach the speaker box from the front housing 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.

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    Lenovo PHAB Hardware Maintenance Manual 4. Unlock 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.

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    Lenovo PHAB 6. Remove the conductive tape on the connector of the main 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.

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    Lenovo PHAB Hardware Maintenance Manual 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...

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    Lenovo PHAB Figure 9-11. The removed main FPC...

  • Page 66: Sim Board

    Lenovo PHAB Hardware Maintenance Manual 1100 SIM Board For access, remove the following FRUs in order: • “1010 Rear cover and side key” on page 34 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”)

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    Lenovo PHAB 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...

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    Lenovo PHAB Hardware Maintenance Manual Figure 10-4. The removed SIM board...

  • Page 69: Main Board Assembly (with Side Key Fpc)

    Lenovo PHAB 1110 Main board assembly (with side key FPC) For access, remove the following FRUs in order: • “1010 Rear cover and side key” on page 34 • “1020 Battery pack” on page 38 • “1030 Rear camera” on page 42 •...

  • Page 70

    Lenovo PHAB Hardware Maintenance Manual 2. Detach the side key FPC 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.

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    Lenovo PHAB 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...

  • Page 72: Receiver

    Lenovo PHAB Hardware Maintenance Manual 1120 Receiver For access, remove the following FRUs in order: • “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 •...

  • Page 73: Notices

    The result obtained in other operating environments may vary. Lenovo may use or distribute any of the information you supply in any way it believes appropriate without incurring any obligation to you.

  • Page 74: Trademarks

    Users of this document should verify the applicable data for their specific environment. Trademarks Lenovo and the Lenovo logo are trademarks of Lenovo in the United States or other countries, or both. Other company, product, or service names may be trademarks or service marks...

This manual also for:

Pb1-750n, Pb1-750p

Comments to this Manuals

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Latest comments:
  • Ernesto Cartajena Nov 17, 2017 08:22:
    pls i need sub assy board usb charging system
  • macstan51@gmail.com Aug 08, 2017 06:35:
    Microphon don't work??? Small signals aren't recordable​. What is to do?