Lenovo ThinkPad Tablet 2 Hardware Maintenance Manual

Also see for ThinkPad Tablet 2: Specification User guide Hardware Maintenance Manual Setup guide User guide

Chapter 7. Removing or replacing a FRUThis chapter provides instructions on how to remove or replace a FRU.CRU statement for customers:You can resolve some problems with your product with a replacement part you can install yourself, calleda “Customer Replaceable Unit” or “CRU.” Some CRUs are designated as self-service CRUs and othersare designated as optional-service CRUs. Installation of self-service CRUs is your responsibility. Foroptional-service CRUs, you can either install the CRU yourself or you can request that a Service Providerinstall the CRU according to the warranty service for your product. If you intend on installing the CRU,Lenovo will ship the CRU to you. CRU information and replacement instructions are shipped with yourproduct and are available from Lenovo at any time upon request. You can find a list of CRUs for your productin this Hardware Maintenance Manual. An electronic version of this manual is available for downloading athttp://www.lenovo.com/support. You might be required to return the defective CRU. When return is required:(1) return instructions, a prepaid shipping label, and a container will be included with the replacementCRU; and (2) you might be charged for the replacement CRU if Lenovo does not receive the defectivepart within thirty (30) days of your receipt of the replacement CRU. See your Lenovo Limited Warrantydocumentation for full details.General guidelinesWhen removing or replacing a FRU, be sure to observe the following general guidelines:1. Do not try to service any computer unless you have been trained and certified. An untrained person runsthe risk of damaging parts.2. Before replacing any FRU, review Chapter 6 “FRU replacement notices” on page 39.3. Begin by removing any FRUs that have to be removed before replacing the failing FRU. Any suchFRUs are listed at the beginning of in each FRU replacement section. Remove them in the order inwhich they are listed.4. Follow the correct sequence in the steps for removing a FRU, as given in the drawings by the numbersin square callouts.5. When turning a screw, turn it in the direction as given by the arrow in the drawing.6. When removing a FRU, remove it in the direction as given by the arrow in the drawing.7. To put the new FRU in place, reverse the removal procedure and follow any notes that pertain toreplacement.8. When replacing a FRU, use the correct screws as shown in the replacement procedures.DANGERBefore removing any FRU, turn off the computer, unplug all power cords from electrical outlets,remove the battery pack, and then disconnect any interconnecting cables.Attention: After replacing a FRU, do not turn on the computer until you have made sure that all screws,springs, and other small parts are in place and none are loose inside the computer. Verify this by shakingthe computer gently and listening for rattling sounds. Metallic parts or metal flakes can cause electricalshort circuits.Attention: The system board is sensitive to, and can be damaged by, electrostatic discharge. Beforetouching it, establish personal grounding by touching a ground point with one hand or by using anelectrostatic discharge (ESD) strap.© Copyright Lenovo 2012, 2014 41