Toshiba Satellite A40 Series Maintenance Manual page 276

4.25 Hinge
4. Pull out the LCD latch hook.
5. Remove the LCD latch knob.
Figure 4-47 Removing the LCD latch hook and LCD latch knob
NOTE: Be careful not to lose the spring.
Satellite A40 Maintenance Manual (960-458)
LCD latch knob
LCD latch hook
4 Replacement Procedures
4-67