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122 Installing System Components
Control Panel Assembly (Service-only Procedure)
NOTE: The control panel assembly consists of two separate modules—the display
module and the control panel circuit board. Use the following instructions to
remove and install either module.
Removing the Control Panel Assembly
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.
1
If applicable, remove the bezel. See "Removing the Front Bezel" on
page 65.
2
Turn off the system and attached peripherals, and disconnect the system
from the electrical outlet and peripherals.
3
Open the system. See "Opening the System" on page 67.
4
Disconnect the control panel cable at back of the control panel board. See
Figure 3-27.
NOTICE: Do not pull on the cable to unseat the connector. Doing so can damage
the cable.
a
Squeeze the metal tabs on the ends of the cable connector.
b
Gently work the connector out of the socket.
5
Disconnect the display module cable from the control panel board. See
Figure 3-27.
6
Remove the three screws that secure the control panel board to the system
chassis and remove the board. See Figure 3-27.
7
Remove the display module:
a
Insert the end of paper clip into the hole on the right side of the
display module and gently pry off the label.
b
Using a T10 Torx driver, remove the two screws that secure the display
module to the system chassis.
c
Remove the display module from the chassis cutout.
Book.book Page 122 Monday, September 14, 2009 12:57 PM