NEC POWERMATE 2000, Инструкция по обслуживанию и справочник

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Disassembly and Reassembly 3-11
System Board and Support Plate Assembly
Removal
Remove the system board and support plate assembly as follows.
Note
:
The system board and support plate assembly
must be removed from the system unit to remove the
network board, processor, CPU fan, PC card bay, CMOS
battery, or LCD panel.
1.
Remove the system unit bottom cover (see “Bottom Cover Removal” earlier
in this section).
2.
Remove the CD-ROM drive and diskette drive (see “CD-ROM Drive
Removal” 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 and
support plate assembly to the system unit chassis (see the following figure).
6.
Carefully pull the system board and support plate assembly out just enough
to access the LCD panel interface cable and speaker cable on the opposite
side of the assembly.
You might need to pull out on the right side of the system unit chassis to
release the volume control from its slot in the side of the chassis.
7. Carefully unplug the LCD panel interface cable from connector P11 on the
system board. Use a steady pull on each end of the connector. Do not pull on
the cable.
8.
Carefully unplug the LCD speaker cable from connector P12 on the system
board. Use a steady pull on each end of the connector. Do not pull on the
cable.
9.
Remove the system board and support plate assembly from the system unit
chassis and set the assembly on a clean, smooth static free surface.