Technical data

19
Speaker
A speaker is not installed in systems with the MSMT378 system board.
To replace the speaker:
1. Remove the face plate. Six screws on the front and one screw on each lower side secure the face
plate to the system.
2. Remove the two screws securing the floppy drive to the power supply, and set the drive aside
carefully.
3. Note the position of the red wire and disconnect the speaker cable connector from the system
board.
4. Remove the screws that secure the speaker retaining ring to the power supply, and remove the
ring and speaker. Access holes are provided on top of the power supply housing.
5. Place the retaining ring on top of the new speaker, insert the assembly into the power supply
housing, and secure the ring with the screws.
6. Connect the speaker cable.
7. Attach the floppy disk drive.
8. Attach the face plate.
Lithium (CMOS/Clock) Battery
On the MSMT353 or MSMT359 system board, the battery is located to the right of the riser card,
near the back. On the MSMT378 system board, the battery is located near the memory modules on
the left side.
WARNING There is a danger of explosion if the battery is incorrectly replaced.
WARNING Replace the battery with the same or equivalent type only, as recommended by the manufacturer.
Dispose of used batteries according to the manufacturer’s instructions.
To replace the battery (on MSMT353 or MSMT359 system board):
1. Remove the ISA cards, if installed. (You must remove the internal drive bay if ISA cards are
installed. Refer to “Installing an Option Board ” in Chapter 3 for details).
2. Note the positive orientation of the battery. Carefully remove the discharged battery by grasping
it firmly and lifting upward.
3. Install the new battery in the same orientation as the old battery.
4. Install the ISA cards and install the internal drive bay.
5. Dispose of the battery according to the manufacturer’s instructions.