Toshiba M7 - page 306

4 Replacement Procedures 4.26 LCD mask
CAUTION: When installing the LCD mask, be sure to keep the following steps (order)
referring to the figure below.
1. Engage the latches on the left side while fiting the LCD mask to the
correct position.
2. Engage the latches on the top from the left to the right.
3. Engage the latches on the right side from the top to the bottom.
4. Engage the latches on the bottom from the right to the left.
4-64 [CONFIDENTIAL] Satellite R20/TECRA M7 Maintenance Manual (960-572)