System board assembly, Figure 22 – Dell Inspiron 3800 User Manual
Page 64
3. Remove the
4. Remove the
5. Remove the 10-mm screw and washer securing the modem assembly.
Figure 22. Modem Assembly
Replacing the Modem Assembly
1. Press the RJ11 connector of the modem assembly into the hole in the bottom case assembly.
2. Carefully align and press the modem into the system board connector.
3. Replace the internal modem 10-mm screw and washer (see
).
System Board Assembly
The system board
’s basic input/output system (BIOS) chip contains the system service tag number, which is also
visible on a bar-code label on the bottom of the computer. The replacement kit for the system board assembly
includes a diskette that provides a utility for transferring the service tag number to the replacement system board
assembly.
To remove the system board assembly, perform the following steps.
NOTICE: To avoid damaging the system board, remove the power cable, the battery, and the second
battery (if installed) before you service the computer.
1. Remove the main battery.
2. Remove the device from the media bay.
3. Remove the
.
4. Remove the
5. Remove the
6. Remove the
7. Remove any PC Cards or plastic blanks from the PC Card slot.
8. Verify that the PC Card ejectors do not extend from the PC Card slot.
9. Remove the following two screws from the system board assembly (see
):
l
The 4-mm screw with captive washer located on the far left side of the computer between the hard-
disk drive assembly and the PC Card slot.
l
The 4-mm screw with captive washer located on the far right side of the computer in front of the
thermal cooling assembly (TCA) and to the right of the microprocessor module.
1 Modem
2 Case plug for modem
3 System board connector for
modem
NOTE: Locate these screws by looking for the white circles on the system board that outline the
captive washers.