Lcd Self Test - Lenovo ThinkBook 13x Gen 4 Hardware Maintenance Manual

Figure 19. Disconnect the cables
Step 2. Rotate the LCD module to an angle of more than 90 degrees and place the computer on a flat
surface as shown. Remove six screws and then remove the LCD module.
Figure 20. Remove the LCD module
Screw specifications
M2.0 x L4.0
Go to https://support.lenovo.com/partslookup
part:
LCD module

LCD Self Test

When you turn on the computer and the LCD goes black, run LCD Self Test to help you determine whether
the LCD functions normally.
To run LCD Self Test:
Ensure that the computer is connected to ac power. Then, press the power button for about seven seconds
to turn off the computer.
Number of screws
6
to look up the Lenovo part number of the following replacement
Torque force (kgf.cm)
3.0 ± 0.15
.
Chapter 4 Removing a FRU or CRU
37