Removing/replacing the audio pwb assembly, 14 removing/replacing the audio pwb assembly – Texas Instruments 660 User Manual
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6-24 Field Service
6.5.14 Removing/Replacing the Audio PWB Assembly
The procedure for removing and replacing the Power Supply PWB 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 Heat Sink Assembly as described in Paragraph 6.5.7.
5.
Remove the Cover-Display Assembly as described in Paragraph 6.5.9.
6.
Remove the Top Cover Assembly as described in Paragraph 6.5.10.
7.
Remove two screws securing the Audio PWB to the Main PWB and disconnect
three connectors (CN15, CN27 and CN28). Remove the PWB from the unit.
8.
Reassembly is the reverse of Steps 1 through 7.
Figure 6-18 Removing/Replacing the Audio PWB Assembly