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System unit
Notes
1. If the system cover lock is not in the locked position the system board will foul during
2. During removal the audio connector may foul on the RFI isolation tray. If so, press
7. Replacement is simply the reverse of removal.
Ensure that all the switches and jumpers on a replacement board are in the correct
position.
Removing an
The escutcheon plate at the rear of the system unit is secured by three screws to
escutcheon plate
the rear of the system unit base. To remove the escutcheon plate:
1. Remove the system board metalwork.
2. Remove the system board.
3. Remove the screw that secures the escutcheon plate to the power supply
metalwork.
4. Remove the three screws that secure the escutcheon plate to the system unit,
and lift the escutcheon plate clear.
5. Replacement is simply the reverse of removal.
Removing the
The power switch linkage mechanically links the system ON/OFF switch on the front
power switch
of the system unit to the power supply ON/OFF switch. It is located in two slots in the
linkage
system unit base plastics. The linkage must clear a rib on the side of the base plastics
during removal, and another during replacement. To remove the linkage:
1. Remove the system unit top cover, system board metalwork, hard disk drive,
power supply metalwork, fan, power supply and system board.
Warning
During the following instructions do not apply excessive pressure or the linkage may
be deformed or the plastics break.
2/14 LS PRO HARDWARE TECHNICAL REFERENCE
removal.
the isolation tray against the side of the system unit base to allow the connectors
clearance.
POWER SWITCH
LINKAGE
FRONT
SLOT
REAR
SLOT
SPRING
RIB
OPERATING
LEVER
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