Dell Inspiron 15 7558 Service Manual - Page 68

Removing the system board, Prerequisites, Procedure

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Removing the system board WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. NOTE: Your computer's Service Tag is stored in the system board. You must enter the Service Tag in the BIOS setup program after you replace the system board. NOTE: Replacing the system board removes any changes you have made to the BIOS using the BIOS setup program. You must make the desired changes again after you replace the system board. NOTE: Before disconnecting the cables from the system board, note the location of the connectors so that you can reconnect them correctly after you replace the system board. Prerequisites 1 Remove the base cover. 2 Remove the battery. 3 Remove the memory module. 4 Remove the fan. 5 Remove the heat sink. Procedure 1 Remove the screws that secure the display-cable bracket to the system board. 2 Lift the display-cable bracket off the system board. 3 Using the pull tab, disconnect the display cable from the system board. 4 Peel off the tape that secures the Windows-button board cable to the system board. 5 Lift the latches and disconnect the Windows-button board cable and keyboard-backlight cable from the system board. 68

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Removing the system board
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer
. After working inside your
computer, follow the instructions in
After working inside your
computer
. For more safety best practices, see the Regulatory
Compliance home page at dell.com/regulatory_compliance.
NOTE:
Your computer’s Service Tag is stored in the system board. You
must enter the Service Tag in the BIOS setup program after you replace
the system board.
NOTE:
Replacing the system board removes any changes you have
made to the BIOS using the BIOS setup program. You must make the
desired changes again after you replace the system board.
NOTE:
Before disconnecting the cables from the system board, note the
location of the connectors so that you can reconnect them correctly
after you replace the system board.
Prerequisites
1
Remove the
base cover
.
2
Remove the
battery
.
3
Remove the
memory module
.
4
Remove the
fan
.
5
Remove the
heat sink
.
Procedure
1
Remove the screws that secure the display-cable bracket to the system
board.
2
Lift the display-cable bracket off the system board.
3
Using the pull tab, disconnect the display cable from the system board.
4
Peel off the tape that secures the Windows-button board cable to the
system board.
5
Lift the latches and disconnect the Windows-button board cable and
keyboard-backlight cable from the system board.
68