4.14 REMOVING/REPLACING THE SYSTEM PCB
1.
Confirm that the POWER switch is off and unplug the ac cord.
2.
Remove the power supply unit, the FOO base and the expansion
bus PCB as directed in part 4.9, 4.10 and 4.12.
3.
Disconnect the speaker cable (A) from the system PCB (B).
4.
Remove the thirteen screws (C) and three spacer (D) on the
system PCB.
If the system has optional memory card, remove the optional
memory card from the system PCB after removing the system
PCB. (Refer to part 4.15.)
(D)
FIGURE 4-18 Removing the System PCB
5.
To install a new system PCB, follow the above procedures in
reverse.
4-18