Toshiba PORTEGE M780 Maintenance Manual page 402

4.31 LCD unit/Touch panel/Digitizer
Make sure to put the LCD module on the flat place. If the LCD module is put on the
uneven place, it may result to break the TAB, make scratch on the B/L or polarization
sheet and cause the display function failure.
PORTÉGÉ M780 Maintenance Manual (960-809)
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4 Replacement Procedures
[CONFIDENTIAL] 4-93