Disassembly and Reassembly 3-11System Board and Support Plate AssemblyRemovalRemove the system board and support plate assembly as follows.Note: The system board and support plate assemblymust be removed from the system unit to remove thenetwork board, processor, CPU fan, PC card bay, CMOSbattery, or LCD panel.1. Remove the system unit bottom cover (see “Bottom Cover Removal” earlierin this section).2. Remove the CD-ROM drive and diskette drive (see “CD-ROM DriveRemoval” and “Diskette Drive Removal” earlier in this section).3. Remove any PC cards or PC card slot covers that might be installed.! Press the PC card eject button(s) to eject the cards or slot covers.! Remove the cards or slot covers from the system unit.! Press in the eject buttons so that they are not in the extended position.4. Unplug the interface cable from the hard drive (see “Hard Drive Removal”earlier in this section). It is not necessary to remove the hard drive.5. Remove seven screws and one standoff securing the system board andsupport plate assembly to the system unit chassis (see the following figure).6. Carefully pull the system board and support plate assembly out just enoughto access the LCD panel interface cable and speaker cable on the oppositeside of the assembly.You might need to pull out on the right side of the system unit chassis torelease the volume control from its slot in the side of the chassis.7. Carefully unplug the LCD panel interface cable from connector P11 on thesystem board. Use a steady pull on each end of the connector. Do not pull onthe cable.8. Carefully unplug the LCD speaker cable from connector P12 on the systemboard. Use a steady pull on each end of the connector. Do not pull on thecable.9. Remove the system board and support plate assembly from the system unitchassis and set the assembly on a clean, smooth static free surface.
