Lenovo 183822U, 183825U About this manual

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About this manual

This manual contains service and reference information for the following ThinkPad® products.

Machine

Machine type (MT)

ThinkPad Tablet

1838, 1839

Important:

•This manual is intended only for trained service technicians who are familiar with ThinkPad products. Use this manual along with the advanced diagnostic tests to troubleshoot problems effectively.

•Before servicing a ThinkPad product, be sure to read all the information under Chapter 1 “Safety information” on page 1 and Chapter 2 “Important service information” on page 19.

© 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 Electrical safety Safety informationGeneral 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 Before replacing parts Important service informationStrategy for replacing FRUs Important notice for replacing a system boardUsing PEW Dynamic Configure To Order CTOFRU identification for CTO, CMV, and GAV products Custom Model Variant CMVImportant service information Hardware Maintenance Manual General checkout Following are not covered under warrantyWhat to do first Be careful not to replace a non-defective FRUChecking the internal battery condition Power system checkoutChecking the internal battery Checking the ThinkPad Tablet AC Charger Checking the internal battery statusHardware Maintenance Manual Resetting a tablet preload to the factory condition Related service informationTouch Factory data reset Locking the screenTouch Location & Security Configure lock screen Changing the password, PIN, or patternEnabling the screen unlock function Touch the Screen lock sounds iconDisabling the screen lock function Power managementScreen blank mode Touch Wireless & network Wi-Fi settings Wireless network disconnect policyHot key Description Hardware Maintenance Manual Screw notices FRU replacement noticesExternal CRU statement to customers Plastic to plasticRetaining 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 PCI Express Mini Card for wireless WAN PCI Express Mini Card for wireless WANRemoval steps of speaker assembly 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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