Dell Precision 330 - Manual (Page 8)

Replacing the Control Panel (Desktop Chassis)
To replace the control panel, perform the removal procedure in reverse.
Mini Tower Chassis
l Removing the control panel
l Replacing the control panel
Removing the Control Panel (Mini Tower Chassis)
1. Turn off the computer and peripherals, disconnect them from their electrical outlets, wait at least 5 seconds, and then remove the computer cover .
2. Remove the front panel .
3. Remove the AGP card brace .
4. Remove all expansion cards .
5. Remove the expansion-card guide .
6. Disconnect the control-panel cable from the control-panel (PANEL) connector on the system board. To locate the control-panel connector, see " System Board
Components " or " Interior Service Label ."
7. Feed the control-panel ribbon cable through the routing holes in the bottom and front wall of the chassis.
8. Disconnect the speaker and chassis intrusion switch cables from the control-panel connectors. To locate these connectors, see " Control Panel Components ."
9. Remove the mounting screw.
10. Lift the control panel and control-panel ribbon cable away from the chassis.
Removing the Control Panel (Mini Tower Chassis)
NOTE: When mounting the control panel on the chassis, ensure that the control-panel alignment hole is positioned over the guide pin. See " Removing the
Control Panel (Desktop Chassis) ."
CAUTION: Before you perform this procedure, see " Precautionary Measures ."
NOTICE: Before disconnecting a peripheral from the system or removing a component from the system board, verify that the standby power indicator on the
system board has turned off. To locate this indicator, see " System Board Components " or " Interior Service Label ."
NOTE: You must open the drive door and free the control-panel cable from the clasp on the drive door.