HP Xw8400 HP xw8400 Service and Technical Reference Guide - Page 73

Hood sensor (Smart Cover Sensor), Front panel I/O device assembly,

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Hood sensor (Smart Cover Sensor) To remove the hood sensor: 1. Disconnect power from the system ( Pre-disassembly procedures on page 55) and remove the access panel (Access panel on page 60). Lay the workstation on its side with the system board facing up. 2. Disconnect the white 1 x 3 hood sensor connector from the inline connector attached to the front panel harness. 3. Slide the hood sensor forward. 4. Push the hood sensor down and remove it from the chassis. Figure 4-8 Removing the hood sensor To replace the hood sensor, reverse the previous steps. Front panel I/O device assembly To remove the front panel I/O device assembly: 1. Disconnect power from the system ( Pre-disassembly procedures on page 55). Remove the access panel (Access panel on page 60) and the front bezel (Front bezel on page 61). 2. Unlatch the plastic snap that secures the cables inside the chassis and, disconnect the front panel I/O device assembly cables from the system board. 3. Remove the screws that hold the front panel I/O device assembly and bracket to the chassis, and remove the screws that hold the front panel I/O device assembly to the bracket. 4. Pull the front panel I/O device assembly out about two inches away from the chassis. ENWW Removing and replacing components 63

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Hood sensor (Smart Cover Sensor)
To remove the hood sensor:
1.
Disconnect power from the system (
Pre-disassembly procedures
on page
55
) and remove the
access panel (
Access panel
on page
60
). Lay the workstation on its side with the system board
facing up.
2.
Disconnect the white 1 x 3 hood sensor connector from the inline connector attached to the front
panel harness.
3.
Slide the hood sensor forward.
4.
Push the hood sensor down and remove it from the chassis.
Figure 4-8
Removing the hood sensor
To replace the hood sensor, reverse the previous steps.
Front panel I/O device assembly
To remove the front panel I/O device assembly:
1.
Disconnect power from the system (
Pre-disassembly procedures
on page
55
). Remove the access
panel (
Access panel
on page
60
) and the front bezel (
Front bezel
on page
61
).
2.
Unlatch the plastic snap that secures the cables inside the chassis and, disconnect the front panel
I/O device assembly cables from the system board.
3.
Remove the screws that hold the front panel I/O device assembly and bracket to the chassis, and
remove the screws that hold the front panel I/O device assembly to the bracket.
4.
Pull the front panel I/O device assembly out about two inches away from the chassis.
ENWW
Removing and replacing components
63