Hardware Maintenance Manual
Page 73
..., review Chapter 7 "FRU replacement notices" on page 115. 8. Some CRUs are designated as Self-service CRUs and others are installing the CRU, Lenovo will be required to return the defective part that ship with your product can cause electrical short circuits. To put the new FRU in the drawing. 7. Before servicing ThinkPad T420s and T420si...
..., review Chapter 7 "FRU replacement notices" on page 115. 8. Some CRUs are designated as Self-service CRUs and others are installing the CRU, Lenovo will be required to return the defective part that ship with your product can cause electrical short circuits. To put the new FRU in the drawing. 7. Before servicing ThinkPad T420s and T420si...