Lenovo A3500 Hardware Maintenance Manual
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Lenovo A3500 Hardware Maintenance Manual

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  • Page 1: Lenovo A3500

    Lenovo A3500 Hardware Maintenance Manual...
  • Page 2 First Edition (January 2014) © Copyright Lenovo 2014. 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 A3500..........24 Specifications ............. 24 FRU replacement notices........26 Screw notices..........26 Removing and replacing an FRU....27 1010 Rear cover and side key..... 28 1020 Battery pack.........

  • 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 A3500 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.
  • Page 8 Lenovo A3500 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

    Lenovo A3500 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.
  • Page 12 Lenovo A3500 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.
  • Page 13 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.
  • Page 14 Lenovo A3500 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.
  • Page 15 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.
  • Page 16 Lenovo A3500 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.
  • Page 17 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 A3500 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.
  • Page 19 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: Important Information About Replacing Rohs 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 A3500 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 (3G version only), PASSWORDS, DEVICE ADMINISTRATION and CREDENTIAL STORAGE.

  • Page 28: Lenovo A3500

    • “Removing and replacing an FRU” on page 27 • “Locations” on page 65 • “Parts list” on page 67 Specifications The following table lists the specifications of the Lenovo A3500 tablet. Table 1. Specifications Feature Description Size & Weight Size •...
  • Page 29 Lenovo A3500 Ports • Micro-USB (USB 2.0), 5-pin • Earphone, 3.5mm • SIM card slot • T-flash card slot Communication • WiFi, 802.11b/g/n • WiFi Direct • WiFi display, Miracast support, HDCP 1.X • A-GPS (supporting GPS) • Bluetooth 4.0 •...

  • Page 30: 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 31: Removing And Replacing An Fru

    Lenovo A3500 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 32: 1010 Rear Cover And Side Key

    Lenovo A3500 Hardware Maintenance Manual 1010 Rear cover and side key 1. Open the card slot cover on the rear cover using a guitar pick. Figure 1-1. Opening the card slot cover 2. Remove screw in the card slot recess.
  • Page 33 Lenovo A3500 3. Hold the tablet in one hand and use a guitar pick to unlock the rear cover from the tablet along the joint line as shown in the figure below. Figure 1-3. Unlocking the rear cover along the joint line 4.
  • Page 34 Lenovo A3500 Hardware Maintenance Manual 5. Detach the side key from the rear cover using a pair of tweezers. Figure 1-5. Detaching the side key 6. Remove the side key. Figure 1-6. The removed side key...

  • Page 35: 1020 Battery Pack

    Lenovo A3500 1020 Battery pack For access, remove the following FRU: • “1010 Rear cover and side key” on page 28 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.
  • Page 36 Lenovo A3500 Hardware Maintenance Manual 2. Remove the steel frame from the front module as shown in the figure below. Figure 2-2. Removing the steel frame...
  • Page 37 Lenovo A3500 3. Detach the battery FPC from its connector on the PCBA using a guitar pick. Figure 2-3. Detaching the battery FPC 4. Detach the battery pack from its seat by inserting a guitar pick into the joint surface and then cutting along the joint line in the direction shown in the figure below.
  • Page 38 Lenovo A3500 Hardware Maintenance Manual 5. Remove the battery pack from the front module of the tablet. Figure 2-5. The removed battery pack...

  • Page 39: 1030 Rear Camera

    Lenovo A3500 1030 Rear camera For access, remove the following FRUs: • “1010 Rear cover and side key” on page 28 • “1020 Battery pack” on page 31 1. Detach the FPC of the rear camera from its connector on the PCBA using a guitar pick.
  • Page 40 Lenovo A3500 Hardware Maintenance Manual 3. Remove the rear camera from the tablet. Figure 3-3. The removed rear camera...

  • Page 41: 1040 Pcba

    Lenovo A3500 1040 PCBA 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 surface, such as surface made of metal, wood, or composite materials.
  • Page 42 Lenovo A3500 Hardware Maintenance Manual 2. Peel off the mylar on the TP FPC connector on the PCBA. Figure 4-2. Position of the mylar 3. Unlock the TP FPC connector using a guitar pick. Figure 4-3. Unlocking the TP FPC connector...
  • Page 43 Lenovo A3500 4. Detach the TP FPC from the PCBA surface using a thin flat blade while at the same time pulling out the FPC from its connector. Figure 4-4. Detaching the TP FPC 5. Peel off the mylar on the main FPC connector on the PCBA.
  • Page 44 Lenovo A3500 Hardware Maintenance Manual 7. Pull out the main FPC from its connector using a pair of tweezers. Figure 4-7. Pulling out the main FPC 8. Detach the RF cable of the speaker and antenna assembly from its connector on the PCBA.
  • Page 45 Lenovo A3500 9. Detach the power key FPC from the front module of the tablet using a guitar pick or a thin flat blade. Figure 4-9. Detaching the power key FPC 10. Detach the volume key FPC from the front module of the tablet using a guitar pick or a thin flat blade.
  • Page 46 Lenovo A3500 Hardware Maintenance Manual 11. Detach the reset key FPC from the front module of the tablet using a guitar pick or a thin flat blade. Figure 4-11. Detaching the reset key FPC 12. Remove screws and screw for fixing the PCBA onto the front module of the tablet.
  • Page 47 Lenovo A3500 13. Slowly detach the PCBA (with other parts connected to it at this stage of the removal procedure) from the front module of the tablet, while taking care not to damage the FPCs that have been disconnected from it.
  • Page 48 Lenovo A3500 Hardware Maintenance Manual 15. Desolder the power key FPC from the PCBA using a soldering iron and a solder sucker. Figure 4-15. Position of desoldering the power key FPC 16. Remove the power key FPC from the PCBA.
  • Page 49 Lenovo A3500 17. Desolder the volume key FPC from the PCBA using a soldering iron and a solder sucker. Figure 4-17. Position of desoldering the volume key FPC 18. Remove the volume key FPC from the PCBA. Figure 4-18. The removed volume key FPC 19.
  • Page 50 Lenovo A3500 Hardware Maintenance Manual 20. Desolder the reset key FPC from the PCBA using a soldering iron and a solder sucker. Figure 4-20. Position of desoldering the reset key FPC 21. Remove the reset key FPC from the PCBA.
  • Page 51 Lenovo A3500 23. Desolder the FPC of the front camera from the PCBA using a soldering iron and a solder sucker. Figure 4-23. Position of desoldering the front camera 24. Detach the front camera from its seat on the PCBA using a guitar pick or a thin flat blade.

  • Page 52: 1050 Receiver

    Lenovo A3500 Hardware Maintenance Manual 1050 Receiver For access, remove the following FRUs: • “1010 Rear cover and side key” on page 28 • “1020 Battery pack” on page 31 detach the following FRUs: • Rear camera (Step 1 in “1030 Rear camera” on page 35) •...

  • Page 53: 1060 Power Key Fpc

    Lenovo A3500 1060 Power key FPC For access, remove the following FRUs: • “1010 Rear cover and side key” on page 28 • “1020 Battery pack” on page 31 detach the following FRUs: • Rear camera (Step 1 in “1030 Rear camera” on page 35) •...

  • Page 54: 1070 Volume Key Fpc

    Lenovo A3500 Hardware Maintenance Manual 1070 Volume key FPC For access, remove the following FRUs: • “1010 Rear cover and side key” on page 28 • “1020 Battery pack” on page 31 detach the following FRUs: • Rear camera (Step 1 in “1030 Rear camera” on page 35) •...

  • Page 55: 1080 Reset Key Fpc

    Lenovo A3500 1080 Reset key FPC For access, remove the following FRUs: • “1010 Rear cover and side key” on page 28 • “1020 Battery pack” on page 31 detach the following FRUs: • Rear camera (Step 1 in “1030 Rear camera” on page 35) •...

  • Page 56: 1090 Front Camera

    Lenovo A3500 Hardware Maintenance Manual 1090 Front camera For access, remove the following FRUs: • “1010 Rear cover and side key” on page 28 • “1020 Battery pack” on page 31 detach the following FRUs: • Rear camera (Step 1 in “1030 Rear camera” on page 35) •...

  • Page 57: 1100 Speaker And Antenna Assembly

    Lenovo A3500 1100 Speaker and antenna assembly For access, remove the following FRUs: • “1010 Rear cover and side key” on page 28 • “1020 Battery pack” on page 31 1. Peel off the mylar on the soldering points of the speaker and antenna assembly, the microphone, and the vibrator motor.
  • Page 58 Lenovo A3500 Hardware Maintenance Manual 3. Detach the RF cable of the speaker and antenna assembly from its connector on the PCBA. Figure 10-3. Detaching the RF cable 4. Move out the RF cable from the cable duct in the front module of the tablet.
  • Page 59 Lenovo A3500 5. Remove screws for fixing the speaker and antenna assembly onto the front module of the tablet. Figure 10-5. The screws on the speaker and antenna assembly Part No. Screw (quantity) Color Torque Phillips flat head screw, M1.4 x 3.0 (3) Silver 6.
  • Page 60 Lenovo A3500 Hardware Maintenance Manual 7. Remove the speaker and antenna assembly from the front module of the tablet. Figure 10-7. The removed speaker and antenna assembly...

  • Page 61: 1110 Microphone

    Lenovo A3500 1110 Microphone For access, remove the following FRUs: • “1010 Rear cover and side key” on page 28 • “1020 Battery pack” on page 31 1. Remove screws for fixing the speaker and antenna assembly onto the front module of the tablet.
  • Page 62 Lenovo A3500 Hardware Maintenance Manual 3. Desolder the wires of the microphone from the small PCB of the main FPC using a soldering iron and a solder sucker. Figure 11-3. Position of desoldering the microphone wires 4. Detach the speaker and antenna assembly from the front module and then remove the rubber socket covering the microphone.

  • Page 63: 1120 Vibrator Motor

    Lenovo A3500 1120 Vibrator motor For access, remove the following FRUs: • “1010 Rear cover and side key” on page 28 • “1020 Battery pack” on page 31 1. Remove screws for fixing the speaker and antenna assembly onto the front module of the tablet.
  • Page 64 Lenovo A3500 Hardware Maintenance Manual 3. Desolder the wires of the vibrator motor from the small PCB of the main FPC using a soldering iron and a solder sucker. Figure 12-3. Position of desoldering the wires of the vibrator motor 4.

  • Page 65: 1130 Main Fpc

    Lenovo A3500 1130 Main FPC For access, remove the following FRUs: • “1010 Rear cover and side key” on page 28 • “1020 Battery pack” on page 31 desolder the following FRUs: • Speaker and antenna assembly (Step 2 in “1100 Speaker and antenna assembly”...
  • Page 66 Lenovo A3500 Hardware Maintenance Manual 3. Unlock the main FPC connector in the front module using a guitar pick. Figure 13-2. Unlocking the main FPC connector 4. Peel off the main FPC from the front module of the tablet as shown in the figure below.
  • Page 67 Lenovo A3500 5. Pull out the main FPC from its connector using a pair of tweezers. Figure 13-4. Pulling out the main FPC 6. Detach the small PCB of the main FPC from the front module of the tablet using a guitar pick or a thin flat blade.
  • Page 68 Lenovo A3500 Hardware Maintenance Manual 7. Remove the main FPC from the tablet. Figure 13-6. The removed main FPC...

  • Page 69: Locations

    Lenovo A3500 Locations Front view Receiver Front camera Speaker...
  • Page 70 Lenovo A3500 Hardware Maintenance Manual Rear view Micro-USB connection Rear camera Earphone socket SIM card slot T-flash card slot Microphone Volume key Power key...
  • Page 71 Lenovo A3500 Parts list This section presents the following service parts: • “Overall” on page 67 • “Screw” on page 69 Overall...
  • Page 72 Lenovo A3500 Hardware Maintenance Manual Table 1. Parts list–Overall FRU No. CRU ID A3500 battery pack 89503039 A3500 side key A3500 vibrator motor 26220115 A3500 speaker and antenna assembly 46362046 A3500 PCBA 62038027 A3500 microphone 26214566 A3500 front camera 26402319...
  • Page 73 Lenovo A3500 Screw Table 2. Parts list–Screw CRU ID Phillips flat head screw, M1.4 46104009 Phillips flat head screw (wide), M1.4 46100071...
  • Page 74 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 75 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...

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