Dell N7110 Service Manual

							Thermal Cooling Assembly81
20
Thermal Cooling Assembly
 WARNING: Before working inside your computer, read the safety information 
that shipped with your computer. For additional safety best practices information, 
see the Regulatory Compliance Homepage at 
www.dell.com/regulatory_compliance.
 
CAUTION: Only a certified service technician should perform repairs on your 
computer. Damage due to servicing that is not authorized by Dell is not covered by 
your warranty.
 
CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist 
grounding strap or by periodically touching an unpainted metal surface (such as a 
connector on your computer).
 
CAUTION: To help prevent damage to the system board, remove the main battery 
(see Removing the Battery on page 15) before working inside the computer.
Removing the Thermal Cooling Assembly
1Follow the instructions in Before You Begin on page 9.
2Follow the instructions from step 2 to step 15 in Removing the System 
Board on page 69.
3In sequential order (indicated on the thermal cooling assembly), loosen 
the six captive screws that secure the thermal cooling assembly to the 
system board.
4Lift the thermal cooling assembly off the system board.
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							82Thermal Cooling Assembly
Replacing the Thermal Cooling Assembly
1Follow the instructions in Before You Begin on page 9.
2Place the thermal cooling assembly on the system board.
3Align the six captive screws on the thermal cooling assembly with the 
screw holes on the system board and tighten the screws in sequential order 
(indicated on the thermal cooling assembly).
4Follow the instructions from step 5 to step 18 in Replacing the System 
Board on page 72.
 CAUTION: Before turning on the computer, replace all screws and ensure that no 
stray screws remain inside the computer. Failure to do so may result in damage to 
the computer. 1 captive screws (6) 2 thermal cooling assembly
1
2
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							Thermal Cooling Assembly83
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							84Thermal Cooling Assembly
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							Processor Module85
21
Processor Module
 WARNING: Before working inside your computer, read the safety information 
that shipped with your computer. For additional safety best practices information, 
see the Regulatory Compliance Homepage at 
www.dell.com/regulatory_compliance.
 
CAUTION: Only a certified service technician should perform repairs on your 
computer. Damage due to servicing that is not authorized by Dell is not covered by 
your warranty.
 
CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist 
grounding strap or by periodically touching an unpainted metal surface (such as a 
connector on your computer).
 
CAUTION: To help prevent damage to the system board, remove the main battery 
(see Removing the Battery on page 15) before working inside the computer.
 
CAUTION: Handle components and cards by their edges, and avoid touching pins 
and contacts.
Removing the Processor Module
1Follow the instructions in Before You Begin on page 9.
2Follow the instructions from step 2 to step 15 in Removing the System 
Board on page 69.
3Remove the thermal cooling assembly (see Removing the Thermal 
Cooling Assembly on page 81).
4To loosen the ZIF socket, use a small, flat-blade screwdriver and rotate the 
ZIF-socket cam screw counterclockwise until it comes to the cam stop.
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							86Processor Module
 CAUTION: To ensure maximum cooling for the processor, do not touch the heat 
transfer areas on the processor thermal-cooling assembly. The oils in your skin 
can reduce the heat transfer capability of the thermal pads.
 CAUTION: When removing the processor module, pull the module straight up. Be 
careful not to bend the pins on the processor module.
5Lift the processor module from the ZIF socket.
Replacing the Processor Module
1Follow the instructions in Before You Begin on page 9.
1 ZIF socket 2 processor module
3 pin-1 corner 4 ZIF-socket cam screw
1
24
3
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							Processor Module87
 NOTE: If a new processor is installed, you will receive a new thermal-cooling 
assembly, which will include an affixed thermal pad, or you will receive a new 
thermal pad along with documentation to illustrate proper installation.
2Align the pin-1 corner of the processor module with the pin-1 corner of the 
ZIF socket, then insert the processor module.
 NOTE: The pin-1 corner of the processor module has a triangle that aligns with the 
triangle on the pin-1 corner of the ZIF socket.
When the processor module is properly seated, all four corners are aligned 
at the same height. If one or more corners of the module are higher than 
the others, the module is not seated properly.
 CAUTION: To avoid damage to the processor, hold the screwdriver perpendicular 
to the processor when turning the cam screw.
3Tighten the ZIF socket by turning the cam screw clockwise to secure the 
processor module to the system board.
4Replace the thermal cooling assembly (see Replacing the Thermal 
Cooling Assembly on page 82).
5Follow the instructions from step 5 to step 18 in Replacing the System 
Board on page 72.
 CAUTION: Before turning on the computer, replace all screws and ensure that no 
stray screws remain inside the computer. Failure to do so may result in damage to 
the computer.
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							88Processor Module
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							Display89
22
Display 
 WARNING: Before working inside your computer, read the safety information 
that shipped with your computer. For additional safety best practices information, 
see the Regulatory Compliance Homepage at 
www.dell.com/regulatory_compliance.
 
CAUTION: Only a certified service technician should perform repairs on your 
computer. Damage due to servicing that is not authorized by Dell is not covered by 
your warranty.
 
CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist 
grounding strap or by periodically touching an unpainted metal surface (such as a 
connector on your computer).
 
CAUTION: To help prevent damage to the system board, remove the main battery 
(see Removing the Battery on page 15) before working inside the computer.
Display Assembly
Removing the Display Assembly
1Follow the instructions in Before You Begin on page 9.
2Remove the battery (see Removing the Battery on page 15).
3Follow the instructions from step 3 to step 4 in Removing the Optical 
Drive on page 17.
4Remove the two screws that secure the display assembly to the computer 
base.
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							90Display
5Remove the keyboard (see Removing the Keyboard on page 27).
6Remove the palm-rest assembly (see Removing the Palm-Rest Assembly 
on page 31).
7Disconnect the display cable and camera cable from the connectors on the 
system board.
8Disconnect the Mini-Card antenna cables from the connectors on the 
Mini-Card(s) (see Removing the Mini-Card(s) on page 45).
9Note the routing of display cable, camera cable, and Mini-Card antenna 
cables and remove the cables from the routing guides.
10Remove the four screws that secure the display assembly to the computer 
base.
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