Dell PowerVault 735N Service Manual page 50

Removing and Replacing Parts: Dell PowerVault 735N Systems Service Manual
Control Panel Assembly
Figure 4. Control Panel Assembly Removal
To remove the control panel assembly, perform the following steps.
NOTICE: See "Protecting Against Electrostatic
1. Remove the front bezel.
2. Open the system doors.
3. Disconnect the control panel cable from the P4 connector on the left side of the interposer board.
4. Remove the SCSI ID 4
5. Loosen the thumbscrew securing the peripheral cage and slide the peripheral cage back 12.5 mm (0.5 inch). It is not necessary to
remove the peripheral cage or the hard-disk drives installed in or on top of the peripheral cage.
6. Remove the screw holding the control panel assembly to the front of the system chassis (see
securing the replacement control panel assembly.
7. Push the left side of the control panel assembly back 12.5 mm (0.5 inch) and then slide it to the right to free the control panel from its
chassis slot.
8. Remove the control-panel assembly ribbon cable from its retaining bracket inside the chassis.
To install a replacement control panel, slide the control panel into its slot above the hard-disk drive cage, and then swing the free end forward.
Ensure that the two LEDs are in their position in the front panel, and secure the control panel with the screw removed in step 6. Slide the
peripheral cage forward and secure it with its thumbscrew. Reconnect the control panel cable to the interposer board P4 connector, and place
the ribbon cable under its bracket.
Chassis Intrusion Switch
Figure 5. Chassis Intrusion Switch Removal
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Discharge" for information on protecting the system from electrostatic discharge.
hard-disk drive, located below the floppy diskette drive.
1 Screw
2 Control panel
3 Control panel cable
4 Fifth hard drive (SCSI ID 4)
1 Chassis intrusion switch
2 Screw
Figure 4). Retain this screw for use in