Lenovo B40-70 Hardware Maintenance Manual - Lenovo B40-xx Notebook - Page 4
About this manual, Lenovo B40-30/B40-45/B40-70, Important - specification
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About this manual This manual contains service and reference information for the following Lenovo product: Lenovo B40-30/B40-45/B40-70 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
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