IBM 6643 - Manual (Page 33)

Speaker assembly removal
1. Remove the upper base cover, see “Upper base cover and base cover wing
removal” on page 22.
2. Remove both left and right base cover wings.
3. Remove two side screws that secure the metal speaker grill.
4. Place the LCD down on a soft covered flat surface.
5. Remove the bottom plate stand (6 screws).
6. Remove the rear bucket housing, see “Rear bucket housing (rear cover)
removal” on page 21.
7. Remove the rear EMC cover, see “Rear EMC cover assembly removal” on
page 23.
8. Remove the two speaker cables from the system board.
9. Remove two side screws holding the speaker assembly.
10. Pull speaker assembly out through the front opening.
Battery removal and installation
1. Turn off the computer and all attached devices.
2. Unplug the power cord.
3. Remove the rear bucket housing, see “Rear bucket housing (rear cover)
removal” on page 21.
4. Locate the battery.
5. Remove the old battery.
6. Insert the new battery.
Chapter 4. FRU replacements 25