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Dell Inspiron N7110 Service Manual - Page 98

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2 Align the screw holes on the display-panel bracket with the screw holes on the display panel and replace the six screws (three on each side). 3 Replace the display panel (see "Replacing the Display Panel" on page 94). 4 Replace the display bezel (see "Replacing the Display Bezel" on page 93). 5 Replace the display assembly (see "Replacing the Display Assembly" on page 91). 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. Hinge Caps Removing the Hinge Caps 1 Follow the instructions in "Before You Begin" on page 9. 2 Remove the display assembly (see "Removing the Display Assembly" on page 89). 3 Remove the display bezel (see "Removing the Display Bezel" on page 92). 4 Remove the display panel (see "Removing the Display Panel" on page 94). 5 Remove the display-panel brackets (see "Removing the Display-Panel Brackets" on page 97). 6 Press both sides of each hinge cap and lift the hinge caps out of the display hinges. 98 Display

Section	Page
Dell™ Inspiron™ N7110 Service Manual	1
Notes, Cautions, and Warnings	2
Contents	3
Before You Begin	9
Recommended Tools	9
Turning Off Your Computer	9
Before Working Inside Your Computer	10
2	13
Top Cover	13
Removing the Top Cover	13
1 Follow the instructions in \	13
2 Press and hold the release button that secures the top cover to the display back cover.	13
3 Slide and lift the top cover.	13
Replacing the Top Cover	14
1 Follow the instructions in \	14
2 Align the top cover with the display back cover.	14
3 Slide the top cover until it clicks into place. Ensure that there are no gaps between the top cover and display back cover.	14
3	15
Battery	15
Removing the Battery	15
1 Follow the instructions in \	15
2 Shut down the computer and turn it over.	15
3 Slide the battery release latch and the battery lock latch to the unlock positions.	15
4 Slide and lift the battery out of the battery bay.	15
Replacing the Battery	16
1 Follow the instructions in \	16
2 Slide the battery into the battery bay until it clicks into place.	16
3 Slide the battery lock latch to the lock position.	16
Optical Drive	17
Removing the Optical Drive	17
Replacing the Optical Drive	19
Module Cover	21
Removing the Module Cover	21
Replacing the Module Cover	22
Memory Module(s)	23
Removing the Memory Module(s)	23
Replacing the Memory Module(s)	24
7	27
Keyboard	27
Removing the Keyboard	27
1 Follow the instructions in \	27
2 Remove the battery (see \	27
3 Turn the computer over and open the display as far as possible.	27
4 Slide a plastic scribe between the slots on the keyboard and release the tabs on the plam rest.	27
5 Pry and lift the keyboard to disengage it from the tabs on the palm rest.	27
6 Ease the keyboard up until it clears off the palm rest.	28
7 Carefully turn the keyboard over and place it on the palm rest assembly.	28
8 Lift the connector latch that secures the keyboard cable to the connector on the system board and remove the keyboard cable.	28
9 Lift the keyboard off the computer.	28
Replacing the Keyboard	29
1 Follow the instructions in \	29
2 Slide the keyboard cable into the connector on the system board. Press down on the connector latch to secure the keyboard cable to the connector on the system board.	29
3 Slide the tabs on the keyboard into the slots on the palm rest.	29
4 Gently press around the edges of the keyboard and slide it upwards to secure the keyboard under the tabs on the palm rest.	29
5 Close the display and turn the computer over.	29
6 Replace the battery (see \	30
8	31
Palm-Rest Assembly	31
Removing the Palm-Rest Assembly	31
1 Follow the instructions in \	31
2 Remove the battery (see \	31
3 Follow the instructions from step 3 to step 4 in \	31
4 Remove the 11 screws that secure the palm-rest assembly to the computer base.	31
5 Remove the keyboard (see \	31
6 Remove the four screws on the palm-rest assembly.	32
7 Disconnect the power-button board cable, touch-pad cable, and hot-key board cable from the connectors on the system board.	32
8 Using a plastic scribe, carefully pry out the palm-rest assembly along the rear edge and then ease the palm-rest assembly from the computer base.	34
9 Lift the palm-rest assembly off the computer base.	34
10 Turn the palm-rest assembly over.	34
11 Remove the hot-key board (see \	34
12 Remove the power-button board (see \	34
Replacing the Palm-Rest Assembly	35
1 Follow the instructions in \	35
2 Replace the hot-key board (see \	35
3 Replace the power-button board (see \	35
4 Align the tabs on the palm rest assembly with the slots on the computer base and gently snap the palm rest assembly in place.	35
5 Slide the touch-pad cable, power-button board cable, and hot-key board cable into the connectors on the system board and press down on the connector latches to secure them.	35
6 Replace the four screws on the palm-rest assembly.	35
7 Replace the keyboard (see \	35
8 Close the display and turn the computer over.	35
9 Replace the 11 screws that secure the palm-rest assembly to the computer base.	35
10 Follow the instructions from step 4 to step 5 in \	35
11 Replace the battery (see \	35
Hot-Key Board	37
Removing the Hot-Key Board	37
Replacing the Hot-Key Board	38
Power-Button Board	41
Removing the Power-Button Board	41
Replacing the Power-Button Board	42
11	45
Wireless Mini-Card(s)	45
Removing the Mini-Card(s)	45
1 Follow the instructions in \	45
2 Remove the battery (see \	45
3 Follow the instructions from step 3 to step 4 in \	45
4 Remove the keyboard (see \	45
5 Remove the palm-rest assembly (see \	45
6 Disconnect the two antenna cables from the Mini-Card(s).	46
7 Remove the screw that secures the Mini-Card(s) to the system board.	46
8 Lift the Mini-Card(s) out of the system-board connector.	46
Replacing the Mini-Card(s)	47
1 Follow the instructions in \	47
2 Remove the new Mini-Card(s) from its packaging.	47
3 Insert the Mini-Card connector at a 45-degree angle into the system-board connector.	48
4 Press the other end of the Mini-Card down into the slot on the system board and replace the screw that secures the Mini-Card to the system board.	48
5 Connect the appropriate antenna cables to the Mini-Card you are installing. The following table provides the antenna cable color scheme for the Mini-Cards supported by your computer.	48
6 Replace the palm-rest assembly (see \	48
7 Replace the keyboard (see \	48
8 Follow the instructions from step 4 to step 5 in \	48
9 Replace the battery (see \	48
10 Install the drivers and utilities for your computer, as required.	48
12	49
Hard Drive	49
Removing the Hard Drive	49
1 Follow the instructions in \	49
2 Remove the battery (see \	49
3 Follow the instructions from step 3 to step 4 in \	49
4 Remove the keyboard (see \	49
5 Remove the palm-rest assembly (see \	50
6 Remove the three screws that secure the hard-drive assembly to the computer base.	50
7 Slide the hard-drive assembly to disconnect it from the connector on the system board.	50
8 Lift the hard-drive assembly out of the computer base.	50
9 Remove the four screws that secure the hard-drive bracket to the hard drive.	51
10 Lift the hard-drive bracket off the hard drive.	51
Replacing the Hard Drive	51
1 Follow the instructions in \	51
2 Remove the new hard drive from its packaging.	51
3 Place the hard drive in the hard-drive bracket.	51
4 Replace the four screws that secure the hard-drive bracket to the hard drive.	51
5 Place the hard-drive assembly on the computer base.	51
6 Slide the hard-drive assembly to connect it to the connector on the system board.	51
7 Replace the three screws that secure the hard-drive assembly to the computer base.	52
8 Replace the palm-rest assembly (see \	52
9 Replace the keyboard (see \	52
10 Follow the instructions from step 4 to step 5 in \	52
11 Replace the battery (see \	52
Subwoofer	53
Removing the Subwoofer	53
Replacing the Subwoofer	54
14	57
Status Light Board	57
Removing the Status Light Board	57
1 Follow the instructions in \	57
2 Remove the battery (see \	57
3 Follow the instructions from step 3 to step 4 in \	57
4 Remove the keyboard (see \	57
5 Remove the palm-rest assembly (see \	57
6 Lift the connector latch that secures the status-light-board cable to the connector on the system board and disconnect the status-light-board cable.	57
7 Remove the screw that secures the status light board to the computer base.	57
8 Lift the status light board away from the computer.	57
Replacing the Status Light Board	58
1 Follow the instructions in \	58
2 Place the status-light board on the computer base.	58
3 Slide the status-light-board cable into the connector on the system board and press down on the connector latch to secure the status-light-board cable to the connector on the system board.	58
4 Replace the screw that secures the status light board to the computer base.	58
5 Replace the palm-rest assembly (see \	59
6 Replace the keyboard (see \	59
7 Follow the instructions from step 4 to step 5 in \	59
8 Replace the battery (see \	59
15	61
Speakers	61
Removing the Speakers	61
1 Follow the instructions in \	61
2 Remove the battery (see \	61
3 Follow the instructions from step 3 to step 4 in \	61
4 Remove the keyboard (see \	61
5 Remove the palm-rest assembly (see \	61
6 Remove the status light board (see \	61
7 Disconnect the speaker cable from the connector on the system board.	61
8 Make a note of the speakers cable routing and lift the speakers along with the cable off the computer base.	61
Replacing the Speakers	62
1 Follow the instructions in \	62
2 Place the speakers on the computer base and route the speakers cable through the routing guides.	62
3 Connect the speaker cable to the connector on the system board.	62
4 Replace the status light board (see \	62
5 Replace the palm-rest assembly (see \	63
6 Replace the keyboard (see \	63
7 Follow the instructions from step 4 to step 5 in \	63
8 Replace the battery (see \	63
Thermal Fan	65
Removing the Thermal Fan	65
Replacing the Thermal Fan	66
17	69
System Board	69
Removing the System Board	69
1 Follow the instructions in \	69
2 Remove any installed card or blank from the Media Card Reader.	69
3 Remove the battery (see \	69
4 Follow the instructions from step 3 to step 4 in \	69
5 Remove the module cover (see \	69
6 Remove the memory module(s) (see \	69
7 Remove the keyboard (see \	69
8 Remove the palm-rest assembly (see \	69
9 Follow the instructions from step 6 to step 8 in \	70
10 Remove the thermal fan (see \	70
11 Disconnect the speaker cable, subwoofer cable, status-light board cable, camera cable, and AC-adapter connector cable from the connectors on the system board.	70
12 Lift the connector latch that secures the display cable to the connector on the system board and disconnect the display cable.	70
13 Remove the six screws that secure the system board to the computer base.	70
14 Lift the system board to disconnect the connector on the system board from the connector on the I/O board.	71
15 Turn the system-board assembly over.	71
16 Remove the coin-cell battery (see \	72
17 Remove the thermal cooling assembly (see \	72
18 Remove the processor (see \	72
Replacing the System Board	72
1 Follow the instructions in \	72
2 Replace the processor (see \	72
3 Replace the thermal cooling assembly (see \	72
4 Replace the coin-cell battery (see \	72
5 Turn the system board assembly over.	72
6 Slide the connectors on the system board into the slots on the computer base.	72
7 Gently press the system board to connect the connector on the system board to the connector on the I/O board.	72
8 Replace the six screws that secure the system board to the computer base.	72
9 Connect the speaker cable, subwoofer cable, status-light board cable, camera cable, and AC-adapter cable to the connectors on the system board.	72
10 Slide the display cable into the connector on the system board and press down on the connector latch to secure the display cable to the connector on the system board.	72
11 Replace the thermal fan (see \	72
12 Follow the instructions from step 5 to step 7 in \	72
13 Replace the palm-rest assembly (see \	72
14 Replace the keyboard (see \	72
15 Replace the memory module (see \	73
16 Follow the instructions from step 4 to step 5 in \	73
17 Replace the battery (see \	73
18 Replace any blank or card you removed from the Media Card Reader.	73
19 Turn on the computer.	73
20 Enter the service tag (see \	73
Entering the Service Tag in the BIOS	73
1 Ensure that the AC adapter is plugged in and that the main battery is installed properly.	73
2 Turn on the computer.	73
3 Press <F2> during POST to enter the system setup program.	73
4 Navigate to the security tab and enter the service tag in the Set Service Tag field.	73
18	75
Coin-Cell Battery	75
Removing the Coin-Cell Battery	75
1 Follow the instructions in \	75
1 Follow the instructions from step 2 to step 15 in \	75
2 Use a plastic scribe and gently pry the coin-cell out of the battery socket on the system board.	75
3 Lift the coin-cell battery out of the battery socket on the system board.	75
Replacing the Coin-Cell Battery	76
1 Follow the instructions in \	76
2 With the positive side up, snap the coin-cell battery into the battery socket on the system board.	76
3 Follow the instructions from step 5 to step 18 in \	76
I/O Board	79
Removing the I/O Board	79
Replacing the I/O Board	80
20	81
Thermal Cooling Assembly	81
Removing the Thermal Cooling Assembly	81
1 Follow the instructions in \	81
2 Follow the instructions from step 2 to step 15 in \	81
3 In sequential order (indicated on the thermal cooling assembly), loosen the six captive screws that secure the thermal cooling assembly to the system board.	81
4 Lift the thermal cooling assembly off the system board.	81
Replacing the Thermal Cooling Assembly	82
1 Follow the instructions in \	82
2 Place the thermal cooling assembly on the system board.	82
3 Align 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).	82
4 Follow the instructions from step 5 to step 18 in \	82
21	85
Processor Module	85
Removing the Processor Module	85
1 Follow the instructions in \	85
2 Follow the instructions from step 2 to step 15 in \	85
3 Remove the thermal cooling assembly (see \	85
4 To 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.	85
5 Lift the processor module from the ZIF socket.	86
Replacing the Processor Module	86
1 Follow the instructions in \	86
2 Align the pin-1 corner of the processor module with the pin-1 corner of the ZIF socket, then insert the processor module.	87
3 Tighten the ZIF socket by turning the cam screw clockwise to secure the processor module to the system board.	87
4 Replace the thermal cooling assembly (see \	87
5 Follow the instructions from step 5 to step 18 in \	87
22	89
Display	89
Display Assembly	89
Removing the Display Assembly	89
1 Follow the instructions in \	89
2 Remove the battery (see \	89
3 Follow the instructions from step 3 to step 4 in \	89
4 Remove the two screws that secure the display assembly to the computer base.	89
5 Remove the keyboard (see \	90
6 Remove the palm-rest assembly (see \	90
7 Disconnect the display cable and camera cable from the connectors on the system board.	90
8 Disconnect the Mini-Card antenna cables from the connectors on the Mini-Card(s) (see \	90
9 Note the routing of display cable, camera cable, and Mini-Card antenna cables and remove the cables from the routing guides.	90
10 Remove the four screws that secure the display assembly to the computer base.	90
11 Lift and remove the display assembly away from the computer base.	91
Replacing the Display Assembly	91
1 Follow the instructions in \	91
2 Place the display assembly in position and replace the four screws that secure the display assembly to the computer base.	91
3 Route the display cable, camera cable, and Mini-Card antenna cables through the routing guides.	92
4 Connect the display cable and camera cable to the connectors on the system board.	92
5 Connect the Mini-Card antenna cables to the Mini-Card(s) (see \	92
6 Replace the palm-rest assembly (see \	92
7 Replace the keyboard (see \	92
8 Replace the two screws that secure the display assembly to the computer base.	92
9 Follow the instructions from step 4 to step 5 in \	92
10 Replace the battery (see \	92
Display Bezel	92
Removing the Display Bezel	92
1 Follow the instructions in \	92
2 Remove the top cover (see \	92
3 Remove the display assembly (see \	92
4 Using your fingertips, carefully pry up the inside edge of the display bezel.	92
5 Remove the display bezel.	92
Replacing the Display Bezel	93
1 Follow the instructions in \	93
2 Realign the display bezel over the display panel and gently snap into place.	93
3 Replace the display assembly (see \	93
4 Replace the top cover (see \	93
Display Panel	94
Removing the Display Panel	94
1 Follow the instructions in \	94
2 Remove the display assembly (see \	94
3 Remove the display bezel (see \	94
4 Remove the eight screws that secure the display panel to the display back cover.	94
5 Lift the display panel off the display back cover.	94
Replacing the Display Panel	94
1 Follow the instructions in \	94
2 Align the screw holes on the display panel with the screw holes on the display back cover and replace the eight screws.	95
3 Route the display cable and Mini-Card antenna cables through the routing guides on the display back cover.	95
4 Replace the display bezel (see \	95
5 Replace the display assembly (see \	95
Display Cable	95
Removing the Display Cable	95
1 Follow the instructions in \	95
2 Remove the display assembly (see \	95
3 Remove the display bezel (see \	95
4 Remove the display panel (see \	95
5 Turn the display panel over and place it on a clean surface.	95
6 Lift the tape that secures the display cable to the display-board connector and disconnect the display cable.	95
Replacing the Display Cable	96
1 Follow the instructions in \	96
2 Connect the display cable to the display-board connector and secure it with the tape.	96
3 Turn the display panel over and place it on the display back cover.	96
4 Replace the display panel (see \	96
5 Replace the display bezel (see \	96
6 Replace the display assembly (see \	96
Display-Panel Brackets	97
Removing the Display-Panel Brackets	97
1 Follow the instructions in \	97
2 Remove the display assembly (see \	97
3 Remove the display bezel (see \	97
4 Remove the display panel (see \	97
5 Remove the six screws (three on each side) that secure the display-panel brackets to the display panel.	97
6 Remove the display-panel brackets off the display panel.	97
Replacing the Display-Panel Brackets	97
1 Follow the instructions in \	97
2 Align the screw holes on the display-panel bracket with the screw holes on the display panel and replace the six screws (three on each side).	98
3 Replace the display panel (see \	98
4 Replace the display bezel (see \	98
5 Replace the display assembly (see \	98
Hinge Caps	98
Removing the Hinge Caps	98
1 Follow the instructions in \	98
2 Remove the display assembly (see \	98
3 Remove the display bezel (see \	98
4 Remove the display panel (see \	98
5 Remove the display-panel brackets (see \	98
6 Press both sides of each hinge cap and lift the hinge caps out of the display hinges.	98
Replacing the Hinge Caps	99
1 Follow the instructions in \	99
2 Place the hinge caps on the display hinges and snap them into place.	99
3 Replace the display panel (see \	99
4 Replace the display bezel (see \	99
5 Replace the display assembly (see \	99
Camera Module	101
Removing the Camera Module	101
Replacing the Camera Module	102
Hinge Cover	105
Removing the Hinge Cover	105
Replacing the Hinge Cover	108
25	111
AC-Adapter Connector	111
Removing the AC-Adapter Connector	111
1 Follow the instructions in \	111
2 Remove the battery (see \	111
3 Follow the instructions from step 3 to step 4 in \	111
4 Remove the keyboard (see \	111
5 Remove the palm-rest assembly (see \	111
6 Remove the display assembly (see \	111
7 Remove the thermal fan (see \	111
8 Remove the hinge cover (see \	111
9 Disconnect the AC-adapter connector cable from the connector on the system board.	111
10 Make note of the AC-adapter connector cable routing and remove the cable from the routing guide.	111
11 Remove the screw that secures the AC-adapter connector to the computer base.	112
12 Lift the AC-adapter connector off the computer base.	112
Replacing the AC-Adapter Connector	112
1 Follow the instructions in \	112
2 Place the AC-adapter connector on the computer base and replace the screw that secures the AC-adapter connector to the computer base.	112
3 Route the AC-adapter connector cable through the routing guide.	112
4 Connect the AC-adapter connector cable to the connector on the system board.	112
5 Replace the display assembly (see \	112
6 Replace the thermal fan (see \	112
7 Replace the hinge cover (see \	113
8 Replace the palm-rest assembly (see \	113
9 Replace the keyboard (see \	113
10 Follow the instructions from step 4 to step 5 in \	113
11 Replace the battery (see \	113
26	115
Flashing the BIOS	115
1 Turn on the computer.	115
2 Go to support.dell.com/support/downloads.	115
3 Locate the BIOS update file for your computer:	115
a Click Enter a Tag.	115
b Enter your computer’s Service Tag in the Enter a service tag: field, click Go, and proceed to step 4.	115
a Click Select Model.	115
b Select the type of product in the Select Your Product Family list.	115
c Select the product brand in the Select Your Product Line list.	115
d Select the product model number in the Select Your Product Model list.	115
e Click Confirm.	115
4 A list of results appear on the screen. Click BIOS.	115
5 Click Download Now to download the latest BIOS file. The File Download window appears.	115
6 Click Save to save the file on your desktop. The file downloads to your desktop.	115
7 Click Close if the Download Complete window appears. The file icon appears on your desktop and is titled the same as the downloaded BIOS update file.	115