Installation and Troubleshooting Guide
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Service-Only Parts Replacement Procedures
Dell™PowerEdge™6850SystemsInstallationandTroubleshootingGuide
Before You Begin
Recommended Tools
Control-Panel Assembly
Fan Interposer Board
SCSI Backplane
System Board
Power Distribution Board
Chassis Intrusion Switch
Before You Begin
The procedures in this document require that you remove the cover and work inside the system. While working inside the system, do not attempt to service
the system except as explained in this document and the User's Guide available on support.dell.com. Always follow the instructions closely, and ensure that
you review all safety precautions in the Product Information Guide.
Recommended Tools
You may need the following items to perform the procedures in this section:
l #2 Phillips screwdriver
l Wrist grounding strap
Control-Panel Assembly
Removing the Control Panel
1. Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.
2. Open the system. See "Opening the System" in "Troubleshooting Your System."
3. Remove fan 1. See "Removing a System Fan" in "Installing System Components."
4. Remove the three control-panel securing screws from the system front panel. See FigureC-1.
5. Lift the control-panel assembly out of the chassis.
6. Disconnect the control-panel cable from the control-panel assembly.
Figure C-1. Removing and Installing the Control-Panel Assembly
CAUTION: See your Product Information Guide for complete information about safety precautions, working inside the computer, and protecting
against electrostatic discharge.
CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as
authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not
authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product.