This manual contains service and reference information for the following. Lenovo product: Lenovo B50-30/B50-30 Touch/B50-45/B50-70. Use this manual to This is a service manual for a Lenovo B50 45 laptop. Manuals and user guide free PDF downloads for Lenovo B50-45. and more. Lenovo B50-45 Hardware Maintenance Manual - Lenovo B50-xx, B50-30 Lenovo B40-45. 20394, 80F5. Lenovo B50-30. 20382, 80ES. Lenovo B50-30 Touch. 20383, 80ET. Lenovo B50-70. 20384, 80EU. Lenovo B50-45. 20388, 80F0. 17 Jul 2016 7 Jan 201629 Jun 2015 Manuals and User Guides for Lenovo B50-45. We have 3 Lenovo B50-45 manuals available for free PDF download: Hardware Maintenance Manual, User Product manuals and user guides for the Lenovo B50 45 Laptop can be found below Lenovo B50 45 Laptop Hardware Maintenance Manual - Lenovo B50-xx,