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A1-07 HMM_EN.book Page 1 Wednesday, September 28, 2011 5:06 PM IdeaPad Tablet A1-07 Hardware Maintenance Manual

A1-07 HMM_EN.book Page 1 Wednesday, September 28, 2011 5:06 PM Note: Before using this information and the product it supports, be sure to read the general information under “Notices” on page 45. First Edition (September 2011) © Copyright Lenovo 2011. 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. LIMITED AND RESTRICTED RIGHTS NOTICE: If products, data, computer software, or services are delivered pursuant a General Services Administration “GSA” contract, use, reproduction, or disclo- sure is subject to restrictions set forth in Contract No. GS-35F-05925. © 2011 Lenovo

A1-07 HMM_EN.book Page iii Wednesday, September 28, 2011 5:06 PM Contents About this manual........................................iv Safety information.........................................1 General safety ...................................................... 2 Electrical safety .................................................... 3 Safety inspection guide ...................................... 5 Handling devices that are sensitive to electrostatic discharge......................................... 6 Grounding requirements ................................... 6 Safety notices: multilingual translations.......... 7 Laser compliance statement............................. 14 Important service information ...................16 Strategy for replacing FRUs............................. 16 Important notice for replacing a system board ............................................................. 17 Important information about replacing RoHS compliant FRUs ................................................. 18 General checkout........................................19 What to do first .................................................. 20 Power system checkout .................................... 21 Checking the AC adapter........................... 21 Checking operational charging ................. 21 Checking the battery pack ......................... 22 Related service information.......................23 Passwords........................................................... 23 Power management .......................................... 23 Turning Screen Backlight On/Off ............ 23 Lenovo IdeaPad Tablet A1-07 ....................24 Specifications ..................................................... 24 FRU replacement notices.................................. 26 Screw notices................................................ 26 Removing and replacing an FRU.................... 27 1010 Battery pack......................................... 28 1020 Micro SD card ..................................... 30 1030 System board....................................... 31 1040 GPS antenna........................................ 34 1050 Back camera ........................................ 35 Locations............................................................. 36 Front view .................................................... 36 Right-side view............................................ 37 Top and Bottom view ................................. 37 Parts list .............................................................. 38 Overall........................................................... 39 AC adapters ................................................. 41 USB Cable..................................................... 41 SD Card......................................................... 41 Power cords.................................................. 42 Notices .........................................................45 Trademarks......................................................... 46 iii

A1-07 HMM_EN.book Page iv Wednesday, September 28, 2011 5:06 PM About this manual This manual contains service and reference information for the following Lenovo product: Lenovo IdeaPad Tablet A1-07 Use this manual to troubleshoot problems. The manual is divided into the following sections: The common sections provide general information, guidelines, and safety information required for servicing computers. The product-specific section includes service, reference, and product-specific parts information. Important: 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” on page 16. iv

A1-07 HMM_EN.book Page 1 Wednesday, September 28, 2011 5:06 PM 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 “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 1

A1-07 HMM_EN.book Page 2 Wednesday, September 28, 2011 5:06 PM Lenovo IdeaPad Tablet A1-07 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. 2. Distribute the weight of the object equally between your feet. 3. Use a slow lifting force. Never move suddenly or twist when you attempt to lift it. 4. Lift it by standing or pushing up with your leg muscles; this action could avoid the strain from the muscles in your back. Do not attempt to lift any object that weighs more than 16 kg (35 lb) or that you think is too heavy for you. Do not perform any action that causes hazards to the customer, or that makes the machine unsafe. Before you start the machine, make sure that other service representatives and the customer are not in a hazardous position. Place removed covers and other parts in a safe place, keeping them away 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 the nonconductive clip, about 8 centimeters (3 inches) from the end. Do not wear jewelry, chains, metal-frame eyeglasses, or metal fasteners for your clothing. Attention: Metal objects are good electrical conductors. Wear safety glasses when you are hammering, drilling, soldering, cutting wire, attaching springs, using solvents, or working in any other conditions that may be hazardous to your eyes. After service, reinstall all safety shields, guards, labels, and ground wires. Replace any safety device that is worn or defective. Reinstall all covers correctly before returning the machine to the customer. Fan louvers on the machine help to prevent the overheating of internal components. Do not obstruct fan louvers or cover them with labels or stickers. 2

A1-07 HMM_EN.book Page 3 Wednesday, September 28, 2011 5:06 PM 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. Do not use such kind of mat to protect yourself from electrical shock. Find the room emergency power-off (EPO) switch, disconnecting the switch or electrical outlet. If an electrical accident occurs, you can then operate the switch or unplug the power cord quickly. Do not work alone under hazardous conditions or near the equipment that has hazardous voltages. Disconnect all power before: – Performing a mechanical inspection – Working near power supplies – Removing or installing main units Before you start to work on the machine, unplug the power cord. If you cannot unplug it, ask the customer to power-off the wall box that supplies power to the machine, and to lock the wall box in the off position. If you need to work on a machine that has exposed electrical circuits, observe the following precautions: – Ensure that another person, familiar with the power-off controls, is near you. Attention: Another person must be there to switch off the power, if necessary. – Use only one hand when working with powered-on electrical equipment; keep the other hand in your pocket or behind your back. 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 machine frames. Observe the special safety precautions when you work with very high voltages; instructions for these precautions are in the safety sections of maintenance information. Be extremely careful when you measure the high voltages. Regularly inspect and maintain your electrical hand tools for safe operational condition. Do not use worn or broken tools and testers. Never assume that power has been disconnected from a circuit. First, check it to make sure that it has been powered off. 3

A1-07 HMM_EN.book Page 4 Wednesday, September 28, 2011 5:06 PM Lenovo IdeaPad Tablet A1-07 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. 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: – Caution: do not become a victim yourself. – Switch off the power. – Send the victim to get medical aid. 4

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