Lenovo T420 - Manual (Page 119)

2020 LED board
For access, remove these FRUs in order:
•
“1010 Battery pack” on page 63
• “2010 LCD bezel assembly” on page 112
Removal steps of LED board
1
Step Screw (quantity) Color Torque
1 M2 × 3 mm, flat-head, nylon-coated (1) Black 0.181 Nm
(1.85 kgfcm)
Chapter 8 . Removing and replacing a FRU 113