Lenovo 183822U, 183825U manual Safety information, General safety, Electrical safety

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Chapter 1. Safety information

This chapter presents following safety information that you need to be familiar with before you service a ThinkPad Tablet.

“General safety” on page 1

“Electrical safety” on page 1

“Safety inspection guide” on page 3

“Handling devices that are sensitive to electrostatic discharge” on page 3

“Grounding requirements” on page 4

“Safety notices (multilingual translations)” on page 4

General safety

Follow these rules to ensure general safety:

Observe good housekeeping in the area of the machines during and after 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.

4.Lift by standing or by pushing up with your leg muscles; this action removes 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 equipment unsafe.

Before you start the machine, make sure that other service technicians and the customer's personnel are not in a hazardous position.

Place removed covers and other parts in a safe place, away from all personnel, while you are servicing the machine.

Keep your toolcase away from walk areas so that other people will not trip over it.

Do not wear loose clothing that can be trapped in the moving parts of a 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 a 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 might 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 other parts that you have removed.

Electrical safety

Observe the following rules when working on electrical equipment.

Important:

© Copyright Lenovo 2011

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Contents ThinkPad Tablet Hardware Maintenance ManualFirst Edition August Copyright Lenovo Contents Ii Hardware Maintenance Manual About this manual Iv Hardware Maintenance Manual General safety Safety informationElectrical safety Hardware Maintenance Manual Safety inspection guide Grounding requirements Safety notices multilingual translationsSafety information Hardware Maintenance Manual Perigo Perigo Safety information Vorsicht Vorsicht Hardware Maintenance Manual Safety information Hardware Maintenance Manual Safety information Hardware Maintenance Manual Safety information Hardware Maintenance Manual Important notice for replacing a system board Important service informationBefore replacing parts Strategy for replacing FRUsCustom Model Variant CMV Dynamic Configure To Order CTOUsing PEW FRU identification for CTO, CMV, and GAV productsImportant service information Hardware Maintenance Manual Be careful not to replace a non-defective FRU Following are not covered under warrantyGeneral checkout What to do firstChecking the internal battery Power system checkoutChecking the internal battery condition Checking the ThinkPad Tablet AC Charger Checking the internal battery statusHardware Maintenance Manual Locking the screen Related service informationResetting a tablet preload to the factory condition Touch Factory data resetTouch the Screen lock sounds icon Changing the password, PIN, or patternTouch Location & Security Configure lock screen Enabling the screen unlock functionScreen blank mode Power managementDisabling the screen lock function Touch Wireless & network Wi-Fi settings Wireless network disconnect policyHot key Description Hardware Maintenance Manual Plastic to plastic FRU replacement noticesScrew notices External CRU statement to customersRetaining serial numbers, MTM, UUID, and Asset ID Before servicing the ThinkPad Tablet Removing and replacing a FRURemoval steps of ThinkPad Tablet Pen ThinkPad Tablet PenThinkPad Tablet Pen on M2 × 4 mm, flat-head, nylon-coated Silver 181 Nm Kgfcm Step Screw quantity Color Torque Speaker assembly Removal steps of speaker assembly PCI Express Mini Card for wireless WANRemoval steps of PCI Express Mini Card for wireless WAN M2 × 3 mm, flat-head, nylon-coated Black 181 Nm Step Screw quantity Color Torque Removal steps of LCD module assembly LCD module assemblyRemoval steps of microphone assembly Microphone assemblyRemoval steps of system board and base cover System board, base cover, and LCD cableApplying labels to the base cover Removal steps of LCD cable Locating the controls and hardware components Hardware Maintenance Manual External CRU statement to customers Parts listOverall FRU FRU ThinkPad Tablet Keyboard Folio Case CRU ID Miscellaneous partsThinkPad Tablet AC Charger ThinkPad Tablet AC ChargerMicro-USB cable ThinkPad Tablet Dock power cord cableTool Common service toolsTrademarks Electronic emission noticesPage 0A96158
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