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Dell Inspiron 14R Service Manual - Page 90

Replacing the Thermal Cooling Assembly

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1 2 1 thermal cooling assembly 2 captive screws (7) Replacing the Thermal Cooling Assembly NOTE: The original thermal grease can be reused if the original processor and heat sink are reinstalled together. If either the processor or the heat sink is replaced, use the thermal pad provided in the kit to ensure that thermal conductivity is achieved. 1 Follow the instructions in "Before You Begin" on page 9. 2 Place the thermal cooling assembly on the system board. 3 Align the seven 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). 4 Replace the system board (see "Replacing the System Board" on page 81). 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. 90 Thermal Cooling Assembly

Section	Page
Dell™ Inspiron™ N4110 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 to 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 lock latch until it clicks into place.	15
4 Slide the battery release latch to the unlock position.	15
5 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
Module Cover	17
Removing the Module Cover	17
Replacing the Module Cover	18
Optical Drive	19
Removing the Optical Drive	19
Replacing the Optical Drive	21
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 palm 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 disconnect 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 assembly.	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 assembly.	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 Remove the module cover (see \	31
4 Follow the instructions from step 4 to step 5 in \	31
5 Remove the ten screws from the computer base.	31
6 Remove the keyboard (see \	31
7 Remove the five screws on the palm-rest assembly.	32
8 Lift the connector latches and pull the pull-tabs to disconnect the power-button cable, touch-pad cable, and hot-key board cable from the connectors on the system board.	32
9 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
10 Lift the palm-rest assembly off the computer base.	34
11 Turn the palm-rest assembly over.	34
12 Remove the hot-key board (see \	34
13 Remove the power button board (see \	34
Replacing the Palm-Rest Assembly	35
1 Follow the instructions in \	35
2 Replace the power button board (see \	35
3 Replace the hot-key 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 power-button cable, touch-pad 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 five screws on the palm-rest assembly.	35
7 Replace the keyboard (see \	35
8 Turn the computer over and replace the ten screws at the bottom of the computer.	35
9 Follow the instructions from step 4 to step 5 in \	35
10 Replace the module cover (see \	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 Remove the module cover (see \	45
4 Follow the instructions from step 4 to step 5 in \	46
5 Remove the keyboard (see \	46
6 Remove the palm-rest assembly (see \	46
7 Disconnect the two antenna cables from the Mini-Card(s).	46
8 Remove the screw that secures the Mini-Card(s) to the system board.	46
9 Lift the Mini-Card(s) off the computer base.	46
10 If you are removing the WLAN Mini-Card, detach it from the WLAN Mini-Card bracket.	47
Replacing the Mini-Card(s)	47
1 Follow the instructions in \	47
2 Remove the new Mini-Card from its packaging.	47
3 If you are replacing the WLAN Mini-Card, attach it to the WLAN Mini-Card bracket.	47
4 Insert the Mini-Card connector at a 45-degree angle into the system-board connector.	47
5 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
6 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
7 Replace the palm-rest assembly (see \	48
8 Replace the keyboard (see \	48
9 Follow the instructions from step 4 to step 5 in \	48
10 Replace the module cover (see \	48
11 Replace the battery (see \	48
12 Install the drivers and utilities for your computer, as required.	48
12	49
Thermal Fan	49
Removing the Thermal Fan	49
1 Follow the instructions in \	49
2 Remove the battery (see \	49
3 Remove the keyboard (see \	49
4 Remove the palm-rest assembly (see \	49
5 Disconnect the display cable from the connector on the system board.	49
6 Disconnect the thermal fan cable from the connector on the system board.	49
7 Remove the screw that secures the thermal fan to the computer base.	49
8 Lift the thermal fan off the system board.	49
Replacing the Thermal Fan	50
1 Follow the instructions in \	50
2 Place the thermal fan on the computer base and replace the screw.	50
3 Connect the thermal fan cable to the connector on the system board.	50
4 Connect the display cable to the connector on the system board.	50
5 Replace the palm-rest assembly (see \	50
6 Replace the keyboard (see \	51
7 Replace the battery (see \	51
13	53
Display	53
Display Assembly	53
Removing the Display Assembly	53
1 Follow the instructions in \	53
2 Remove the battery (see \	53
3 Remove the module cover (see \	53
4 Follow the instructions from step 4 to step 5 in \	53
5 Remove the two screws from the computer base.	53
6 Remove the keyboard (see \	54
7 Remove the palm-rest assembly (see \	54
8 Loosen the display cable grounding screw.	54
9 Disconnect the display cable from the connector on the system board.	54
10 Disconnect the Mini-Card antenna cables from the connectors on the Mini-Card(s) (see \	54
11 Remove the four screws that secure the display assembly to the computer base.	55
12 Lift the display assembly off the computer base.	55
Replacing the Display Assembly	56
1 Follow the instructions in \	56
2 Place the display assembly in position and replace the four screws that secure the display assembly to the computer base.	56
3 Route the display cable and Mini-Card antenna cables through the routing guides.	56
4 Connect the display cable to the connector on the system board.	56
5 Connect the Mini-Card antenna cables to the Mini-Cards(s) (see \	56
6 Tighten the display cable grounding screw.	56
7 Replace the palm-rest assembly (see \	57
8 Replace the keyboard (see \	57
9 Replace the two screws at the bottom of the computer.	57
10 Follow the instructions from step 4 to step 5 in \	57
11 Replace the module cover (see \	57
12 Replace the battery (see \	57
Display Bezel	57
Removing the Display Bezel	57
1 Follow the instructions in \	57
2 Remove the top cover (see \	57
3 Remove the display assembly (see \	57
4 Using your fingertips, carefully pry up the inside edge of the display bezel.	57
5 Remove the display bezel.	57
Replacing the Display Bezel	58
1 Follow the instructions in \	58
2 Realign the display bezel over the display panel and gently snap it into place.	58
3 Replace the display assembly (see \	58
4 Replace the top cover (see \	58
Display Panel	58
Removing the Display Panel	58
1 Follow the instructions in \	58
2 Remove the display assembly (see \	59
3 Remove the display bezel (see \	59
4 Remove the six screws that secure the display panel to the display cover.	59
5 Note the routing of the display cable and Mini-Card(s) cables and remove the cables from the routing guides on the display cover.	59
6 Lift the display panel off the display cover.	59
Replacing the Display Panel	59
1 Follow the instructions in \	59
2 Align the screw holes on the display panel with the screw holes on the display cover and replace the six screws.	59
3 Route the display cable through the routing guides on the display cover.	59
4 Replace the display bezel (see \	59
5 Replace the display assembly (see \	59
Display Cable	60
Removing the Display Cable	60
1 Follow the instructions in \	60
2 Remove the display assembly (see \	60
3 Remove the display bezel (see \	60
4 Remove the display panel (see \	60
5 Turn the display panel over and place it on a clean surface.	60
6 Lift the tape that secures the display cable to the connector on the display panel and disconnect the display cable.	60
Replacing the Display Cable	61
1 Follow the instructions in \	61
2 Connect the display cable to the connector on the display panel and secure it with the tape.	61
3 Turn the display panel over and place it on the display cover.	61
4 Replace the display panel (see \	61
5 Replace the display bezel (see \	61
6 Replace the display assembly (see \	61
Hinge Caps	61
Removing the Hinge Caps	61
1 Follow the instructions in \	61
2 Remove the display assembly (see \	61
3 Remove the display bezel (see \	61
4 Remove the six screws that secure the display panel to the display cover.	61
5 Turn the display panel over and keep it on a clean surface.	61
6 Press both sides of each hinge cap and lift the hinge caps out of the display hinges.	61
Replacing the Hinge Caps	62
1 Follow the instructions in \	62
2 Align the tabs on the hinge caps with the slots on the display panel brackets and snap them into place.	62
3 Turn the display panel over and place it on the display cover.	62
4 Replace the six screws that secure the display panel to the display cover.	62
5 Replace the display bezel (see \	62
6 Replace the display assembly (see \	62
Display Panel Brackets	62
Removing the Display Panel Brackets	62
1 Follow the instructions in \	62
2 Remove the display assembly (see \	62
3 Remove the display bezel (see \	63
4 Remove the hinge caps (see \	63
5 Remove the four screws (two on each side) that secure the display panel brackets to the display panel.	63
Replacing the Display Panel Brackets	63
1 Follow the instructions in \	63
2 Align the screw holes on the display panel vbbrackets with the screw holes on the display panel.	63
3 Replace the four screws (two on each side) that secure the display-panel brackets to the display panel.	63
4 Replace the hinge caps (see \	63
5 Replace the display bezel (see \	63
6 Replace the display assembly (see \	64
Camera Module	65
Removing the Camera Module	65
Replacing the Camera Module	66
Hinge Cover	69
Removing the Hinge Cover	69
Replacing the Hinge Cover	71
VGA Connector Board	73
Removing the VGA Connector Board	73
Replacing the VGA Connector Board	74
17	77
System Board	77
Removing the System Board	77
1 Follow the instructions in \	77
2 Press and eject any installed cards or blanks from the 8-in-1 media card reader.	77
3 Remove the battery (see \	77
4 Remove the module cover (see \	77
5 Remove the memory module(s) (see \	77
6 Follow the instructions from step 4 to step 5 in \	77
7 Disconnect the AC-adapter connector cable from the connector on the system board.	77
8 Remove the keyboard (see \	78
9 Remove the palm-rest assembly (see \	78
10 Remove the thermal fan (see \	78
11 Loosen the display cable grounding screw.	78
12 Disconnect the display cable and speakers cable from the connectors on the system board.	78
13 Remove the five screws that secure the system board to the computer base.	78
14 Lift the system board assembly to disconnect the connector on the system board from the connector on the I/O board.	79
15 Turn the system board over.	80
16 Remove the coin-cell battery (see \	80
17 Follow the instructions from step 3 to step 5 in \	80
18 Remove the thermal cooling assembly (see \	80
19 Remove the processor module (see \	80
Replacing the System Board	81
1 Follow the instructions in \	81
2 Replace the processor module (see \	81
3 Replace the thermal cooling assembly (see \	81
4 Follow the instructions from step 5 to step 7 in \	81
5 Replace the coin-cell battery (see \	81
6 Turn the system board over.	81
7 Align the connectors on the system board with the slots on the computer base and place it in position.	81
8 Gently press the system board to connect the connector on the system board to the connector on the I/O board.	81
9 Replace the five screws that secure the system board to the computer base.	81
10 Connect the display cable and speakers cable to the connectors on the system board.	81
11 Tighten the display cable grounding screw.	81
12 Replace the thermal fan (see \	81
13 Replace the palm-rest assembly (see \	81
14 Replace the keyboard (see \	81
15 Connect the AC-adapter connector cable to the connector on the system board.	81
16 Follow the instructions from step 4 to step 5 in \	81
17 Replace the memory module(s) (see \	81
18 Replace the module cover (see \	81
19 Replace the battery (see \	81
20 Replace any cards or blanks removed from the 8-in-1 media card reader.	82
21 Turn on the computer.	82
22 Enter the service tag (see \	82
Entering the Service Tag in the BIOS	82
1 Ensure that the AC adapter is plugged in and that the main battery is installed properly.	82
2 Turn on the computer.	82
3 Press <F2> as soon as you see the Dell logo to enter the system setup program.	82
4 Navigate to the security tab and enter the service tag in the Set Service Tag field.	82
18	83
Speakers	83
Removing the Speakers	83
1 Follow the instructions in \	83
2 Follow the instructions from step 2 to step 14 in \	83
3 Note the speakers cable routing and lift the left and right speakers along with the its cable from the computer base.	83
Replacing the Speakers	84
1 Follow the instructions in \	84
2 Place the speakers on the computer base and route the speakers cable through the routing guides.	84
3 Follow the instructions from step 7 to step 20 in \	84
19	87
Coin-Cell Battery	87
Removing the Coin-Cell Battery	87
1 Follow the instructions in \	87
2 Follow the instructions from step 2 to step 15 in \	87
3 Use a plastic scribe and gently pry the coin-cell out of the battery socket on the system board.	87
4 Lift the coin-cell battery out of the system-board socket.	87
Replacing the Coin-Cell Battery	88
1 Follow the instructions in \	88
2 Hold the coin-cell battery with the positive side up.	88
3 Slide the coin-cell battery into the slot and gently press until it snaps in place.	88
4 Follow the instructions from step 6 to step 20 in \	88
Thermal Cooling Assembly	89
Removing the Thermal Cooling Assembly	89
Replacing the Thermal Cooling Assembly	90
21	91
Processor Module	91
Removing the Processor Module	91
1 Follow the instructions in \	91
2 Follow the instructions from step 2 to step 15 in \	91
3 Remove the thermal cooling assembly (see \	91
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.	91
5 Lift the processor module from the ZIF socket.	91
Replacing the Processor Module	92
1 Follow the instructions in \	92
2 Align the pin-1 corner of the processor module with the pin-1 corner of the ZIF socket, then insert the processor module.	92
3 Tighten the ZIF socket by turning the cam screw clockwise to secure the processor module to the system board.	93
4 Replace the thermal cooling assembly (see \	93
5 Follow the instructions from step 6 to step 20 in \	93
22	95
Hard-Drive Assembly	95
Removing the Hard-Drive Assembly	95
1 Follow the instructions in \	95
2 Follow the instructions from step 2 to step 15 in \	95
3 Remove the screw that secures the hard-drive assembly to the system board.	95
4 Slide the hard-drive assembly in the direction shown in the illustration to disconnect it from the connector on the system board.	96
5 Lift the hard-drive assembly off the system board.	96
6 Remove the four screws that secure the hard-drive bracket to the hard drive.	96
7 Lift the hard drive away from the hard-drive bracket.	96
Replacing the Hard-Drive Assembly	97
1 Follow the instructions in \	97
2 Remove the new hard drive from its packaging.	97
3 Place the hard drive in the hard-drive bracket.	97
4 Replace the four screws that secure the hard-drive bracket to the hard drive.	97
5 Place the hard-drive assembly on the system board.	97
6 Slide the hard-drive assembly to connect it to the connector on the system board.	97
7 Replace the screw that secures the hard-drive assembly to the system board.	97
8 Follow the instructions from step 6 to step 20 in \	98
I/O Board	99
Removing the I/O Board	99
Replacing the I/O Board	100
24	101
AC-Adapter Connector	101
Removing the AC-Adapter Connector	101
1 Follow the instructions in \	101
2 Follow the instructions from step 2 to step 14 in \	101
3 Remove the display assembly (see \	101
4 Remove the hinge cover (see \	101
5 Remove the VGA connector board (see \	101
6 Note the AC-adapter connector cable routing and remove the cable from the routing guides.	101
7 Remove the screw that secures the AC-adapter connector to the computer base.	101
8 Lift the AC-adapter connector off the computer base.	101
Replacing the AC-Adapter Connector	102
1 Follow the instructions in \	102
2 Place the AC-adapter connector on the computer base.	102
3 Replace the screw that secures the AC-adapter connector to the computer base.	102
4 Route the AC-adapter connector cable through the routing guides.	102
5 Replace the VGA connector board (see \	102
6 Replace the hinge cover (see \	102
7 Replace the display assembly (see \	102
8 Follow the instructions from step 7 to step 20 in \	102
25	105
Flashing the BIOS	105
1 Turn on the computer.	105
2 Go to support.dell.com/support/downloads.	105
3 Locate the BIOS update file for your computer:	105
a Click Enter a Tag.	105
b Enter your computer’s Service Tag in the Enter a service tag: field, click Go, and proceed to step 4.	105
a Click Select Model.	105
b Select the type of product in the Select Your Product Family list.	105
c Select the product brand in the Select Your Product Line list.	105
d Select the product model number in the Select Your Product Model list.	105
e Click Confirm.	105
4 A list of results appear on the screen. Click BIOS.	105
5 Click Download Now to download the latest BIOS file. The File Download window appears.	105
6 Click Save to save the file on your desktop. The file downloads to your desktop.	105
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.	105