Texas Instruments 660 - Manual (Page 111)

Field Service 6-17
6.5.7 Removing/Replacing the Heat Sink Assembly
The procedure for removing and replacing the Heat Sink Assembly is as follows:
1. Turn off the computer; disconnect the AC power adapter (if attached), and
remove the battery packs as described in Paragraphs 6.5.1 and 6.5.2.
2. Press the Cover Release Latch and open the notebook to a full 180 degree
position.
3. Remove the Keyboard Assembly as described in Paragraph 6.5.6.
4. Remove the four screws securing the Heat Sink Assembly to the Main Board
and carefully lift the Heat Sink Assembly from the base assembly.
5. Replacement is the reverse of Steps 1 through 4.
Figure 6-11 Removing/Replacing the Heat Sink Assembly
Keyboard Assembly Heat Sink
Assembly