Toshiba Satellite L640 Maintenance Manual page 180

Chapter 4 Replacement Procedures
Installing the keyboard
The following describes the procedure for installing the keyboard.
1. Connect the keyboard flexible cable to the connector on the mother board.
2. Slide and set the keyboard then secure it with the following screw.
 M2.03.0B
3. Install the K/B holder by pressing it from the topside.
4. Upside down the computer and secure the KB holder with the following screw.
 M2.02.0B
Satellite L640/L645, Satellite Pro L640/Pro L645 Maintenance Manual (960-Q08)
BIND screw x3
BIND screw x2