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Dell Inspiron 1121, Service Manual

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 System Board  

Dell™ Inspiron™ 1121 Service Manual 

 

  

Removing the System Board 

 

  

Replacing the System Board 

 

 

 

Removing the System Board  

 

 

1.

Follow the instructions in 

Before You Begin

.  

 

 

  

2.

Remove the battery (see 

Removing the Battery

).  

 

 

  

3.

Remove the memory module(s) (see 

Removing the Memory Module(s)

).  

 

 

  

4.

Remove the keyboard (see 

Removing the Keyboard

).  

 

 

  

5.

Follow the instructions from 

step 4

 to 

step 6

 in 

Removing the Hard Drive

.  

 

 

  

6.

Remove the palm rest (see 

Removing the Palm Rest

).  

 

 

  

7.

Remove the Mini-Card(s) (see 

Removing the Mini-Card(s)

).  

 

 

  

8.

Remove the display assembly (see 

Removing the Display Assembly

).  

 

 

  

9.

Remove the middle cover (see 

Removing the Middle Cover

).  

 

 

  

10.

Disconnect the audio cable from the connectors on the system board and the audio board.  
 

  

 

 

11.

Remove the coin-cell battery (see 

Removing the Coin-Cell Battery

).  

 

 

  

12.

Remove the screw that secures the system board to the computer base.  
 

 

  

13.

Lift the system board up slightly and disconnect the AC adapter connector cable from the system board.  
 

 

  

14.

Lift the system board completely off the computer base.  
 

 

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

) before working inside the 

computer. 

1 

system board connector 

2 

audio cable 

3 

audio board connector  

Summary of Contents for Inspiron 1121

Page 1: ...er license Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products Dell Inc disclaims any proprietary interest in trademarks and trade names other than its own December 2010 Rev A00 Regulatory model P07T series Regulatory type P07T001 Before You Begin Battery Memory Module s Keyboard Hard Drive Palm Rest Power But...

Page 2: ...the AC adapter connector cable from the connector on the system board 11 Make note of the cable routing and carefully dislodge the AC adapter connector cable from the routing guides 12 Lift the AC adapter connector off the computer base WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Re...

Page 3: ...acing the Audio Board 6 Replace the middle cover see Replacing the Middle Cover 7 Replace the display assembly see Replacing the Display Assembly 8 Replace the palm rest see Replacing the Palm Rest 9 Follow the instructions from step 5 to step 7 in Replacing the Hard Drive 10 Replace the keyboard see Replacing the Keyboard 11 Replace the battery see Replacing the Battery Back to Contents Page 1 AC...

Page 4: ...ter base Replacing the Audio Board 1 Follow the instructions in Before You Begin 2 Align the connectors on the audio board with the slots on the computer base 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 Onl...

Page 5: ...tenna cables to the Mini Card s 6 Replace the palm rest see Replacing the Palm Rest 7 Follow the instructions from step 5 to step 7 in Replacing the Hard Drive 8 Replace the keyboard see Replacing the Keyboard 9 Replace the battery see Replacing the Battery Back to Contents Page CAUTION Before turning on the computer replace all screws and ensure that no stray screws remain inside the computer Fai...

Page 6: ...rmation 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 usi...

Page 7: ...rk surface is flat and clean to prevent the computer cover from being scratched 2 Turn off your computer see Turning Off Your Computer and all attached devices 3 Disconnect all telephone or network cables from the computer CAUTION To avoid losing data save and close all open files and exit all open programs before you turn off your computer WARNING Before working inside your computer read the safe...

Page 8: ...ir electrical outlets 6 Disconnect all attached devices from your computer 7 Remove the battery see Removing the Battery 8 Turn the computer top side up open the computer and press the power button to ground the system board Back to Contents Page CAUTION To help prevent damage to the system board remove the main battery see Removing the Battery before working inside the computer ...

Page 9: ... list b Select the product brand in the Select Your Product Line list c Select the product model number in the Select Your Product Model list d Click Confirm 5 A list of results appear on the screen Click BIOS 6 Click Download Now to download the latest BIOS file The File Download window appears 7 Click Save to save the file on your desktop The file downloads to your desktop 8 Click Close if the D...

Page 10: ...gin 2 Align the connector on the Bluetooth module with the connector on the system board and press the Bluetooth module until it is fully seated 3 Replace the screw that secures the Bluetooth module to the system board WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Complianc...

Page 11: ... Rest 5 Replace the keyboard see Replacing the Keyboard 6 Replace the battery see Replacing the Battery Back to Contents Page 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 ...

Page 12: ...You Begin 2 Place the camera module on the display back cover using the alignment posts 3 Press down on the camera module to secure it to the display back cover 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 O...

Page 13: ...y Assembly 7 Replace the palm rest see Replacing the Palm Rest 8 Follow the instructions from step 5 to step 7 in Replacing the Hard Drive 9 Replace the keyboard see Replacing the Keyboard 10 Replace the battery see Replacing the Battery Back to Contents Page CAUTION Before turning on the computer replace all screws and ensure that no stray screws remain inside the computer Failure to do so may re...

Page 14: ...tem board 3 Connect the coin cell battery cable to the connector on the system board 4 Replace the palm rest see Replacing the Palm Rest 5 Follow the instructions from step 5 to step 7 in Replacing the Hard Drive 6 Replace the keyboard see Replacing the Keyboard 7 Replace the battery see Replacing the Battery WARNING Before working inside your computer read the safety information that shipped with...

Page 15: ...database on UserManuals info Back to Contents Page 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 ...

Page 16: ...e 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 before working inside the computer C...

Page 17: ... Processor Heat Sink 5 Replace the palm rest see Replacing the Palm Rest 6 Replace the keyboard see Replacing the Keyboard 7 Replace the battery see Replacing the Battery Back to Contents Page 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 pro...

Page 18: ...see the Regulatory Compliance Homepage at www dell com regulatory_compliance WARNING If you remove the processor heat sink from the computer when the heat sink is hot do not touch the metal housing of the processor heat sink 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 CAUT...

Page 19: ...Great user manuals database on UserManuals info Back to Contents Page ...

Page 20: ... 9 Remove the two screws one on each side that secure the display assembly to the computer base 10 Lift and remove the display assembly off the computer base 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...

Page 21: ...eyboard see Replacing the Keyboard 9 Replace the battery see Replacing the Battery Display Bezel Removing the Display Bezel 1 Follow the instructions in Before You Begin 2 Remove the display assembly see Removing the Display Assembly 3 Remove the two rubber pads covering the screws on the display bezel 4 Remove the two screws that secure the display bezel to the display back cover 5 Using your fin...

Page 22: ... the Display Assembly Display Panel Removing the Display Panel 1 Follow the instructions in Before You Begin 2 Remove the display assembly see Removing the Display Assembly 3 Remove the display bezel see Removing the Display Bezel 4 Remove the four screws that secure the display panel to the display back cover 5 Disconnect the camera cable from the connector on the camera module 1 rubber pads 2 2 ...

Page 23: ...ng the Display Panel 1 Follow the instructions in Before You Begin 2 Connect the display cable to the display cable connector and secure it with the tape 3 Place the display cable on the back of the display panel and secure it with the tape 4 Turn the display panel over and place it on the display back cover 5 Connect the camera cable to the connector on the camera module 6 Replace the four screws...

Page 24: ...s to the display back cover 7 Lift the display panel brackets off the display back cover Replacing the Display Panel Brackets 1 Follow the instructions in Before You Begin 2 Place the display panel brackets on the display back cover 3 Replace the four screws that secure the display panel brackets to the display back cover 4 Adhere the aluminum foil over the display panel bracket screws 5 Replace t...

Page 25: ...database on UserManuals info Back to Contents Page 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 ...

Page 26: ...ve 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 prevent data loss turn off your c...

Page 27: ...drive assembly into the connector on the system board 7 Replace the two screws that secure the hard drive assembly to the computer base 8 Replace the keyboard see Replacing the Keyboard 9 Replace the battery see Replacing the Battery 10 Install the operating system for your computer as needed See Restoring Your Operating System in the Setup Guide 11 Install the drivers and utilities for your compu...

Page 28: ... the computer over 9 Gently pry out the middle cover and remove it from the computer base 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 To avoid electrostatic discharge ground yourself by using a wrist ground...

Page 29: ...he computer base 5 Replace the display assembly see Replacing the Display Assembly 6 Replace the palm rest see Replacing the Palm Rest 7 Follow the instructions from step 5 to step 7 in Replacing the Hard Drive 8 Replace the keyboard see Replacing the Keyboard 9 Replace the battery see Replacing the Battery Back to Contents Page 1 middle cover CAUTION Before turning on the computer replace all scr...

Page 30: ... Slide the power button module under the latch and align the screw hole on the power button module with the screw hole on the palm rest 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 t...

Page 31: ... the palm rest 5 Replace the palm rest see Replacing the Palm Rest 6 Replace the keyboard see Replacing the Keyboard 7 Replace the battery see Replacing the Battery Back to Contents Page 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 ...

Page 32: ...ty 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 u...

Page 33: ...the keyboard cable into the connector on the system board and press down on the connector latch to secure the keyboard cable 3 Align the tabs at the bottom of the keyboard with the slots on the palm rest and lower the keyboard into place 4 Gently press around the edges of the keyboard to secure the keyboard under the tabs on the palm rest 5 Close the display and turn the computer over 6 Replace th...

Page 34: ...database on UserManuals info Back to Contents Page 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 ...

Page 35: ... memory module connector until the memory module pops up 6 Remove the memory module from the memory module connector 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 pe...

Page 36: ...ighten the screw that secures the memory module cover to the computer base 6 Replace the battery see Replacing the Battery 7 Connect the AC adapter to your computer and an electrical outlet 8 Turn on the computer As the computer boots it detects the memory module s and automatically updates the system configuration information To confirm the amount of memory installed in the computer click Start C...

Page 37: ...Great user manuals database on UserManuals info Back to Contents Page ...

Page 38: ... 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 g...

Page 39: ... the palm rest see Replacing the Palm Rest 8 Follow the instructions from step 5 to step 7 in Replacing the Hard Drive 9 Replace the keyboard see Replacing the Keyboard 10 Replace the battery see Replacing the Battery 11 Install the drivers and utilities for your computer as required 1 antenna cables 2 2 screw 3 Mini Card CAUTION Use firm and even pressure to slide the card into place If you use e...

Page 40: ...Great user manuals database on UserManuals info Back to Contents Page NOTE If you are installing a wireless Mini Card from a source other than Dell you must install the appropriate drivers and utilities ...

Page 41: ...al drive to the computer base 4 Replace the keyboard see Replacing the Keyboard 5 Replace the battery see Replacing the Battery 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 technicia...

Page 42: ...database on UserManuals info Back to Contents Page 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 ...

Page 43: ...cable and the power button board cable from their connectors on the system board 11 Slide a plastic scribe between the computer base and the palm rest and pry out the palm rest off the computer base 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 de...

Page 44: ... instructions from step 5 to step 7 in Replacing the Hard Drive 6 Replace the keyboard see Replacing the Keyboard 7 Close the display and turn the computer over 8 Replace the four screws that secure the palm rest to the computer base 9 Replace the two rubber caps that cover the palm rest screws on the computer base 10 Replace the battery see Replacing the Battery Back to Contents Page 1 power butt...

Page 45: ...the palm rest 3 Replace the screw that secures the power button board to the palm rest 4 Replace the palm rest see Replacing the Palm Rest 5 Follow the instructions from step 5 to step 7 in Replacing the Hard Drive 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 Ho...

Page 46: ...rd see Replacing the Keyboard 7 Replace the battery see Replacing the Battery Back to Contents Page 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 ...

Page 47: ...ck latch to the lock position Back to Contents Page 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 no...

Page 48: ...Great user manuals database on UserManuals info ...

Page 49: ...oard see Replacing the System Board 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 ...

Page 50: ...Great user manuals database on UserManuals info Back to Contents Page ...

Page 51: ...he Coin Cell Battery 12 Remove the screw that secures the system board to the computer base 13 Lift the system board up slightly and disconnect the AC adapter connector cable from the system board 14 Lift the system board completely off the computer base WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices info...

Page 52: ... the audio board 8 Replace the middle cover see Replacing the Middle Cover 9 Replace the display assembly see Replacing the Display Assembly 10 Replace the Mini Card s see Replacing the Mini Card s 11 Replace the palm rest see Replacing the Palm Rest 12 Follow the instructions from step 5 to step 7 in Replacing the Hard Drive 13 Replace the keyboard see Replacing the Keyboard 14 Replace the memory...

Page 53: ... user manuals database on UserManuals info b Press F2 during POST to enter the system setup program c Navigate to the Security tab and enter the Service Tag in the Set Service Tag field Back to Contents Page ...

Page 54: ...dows Vista start button logo are either trademarks or registered trademarks of Microsoft Corporation in the United States and or other countries Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products Dell Inc disclaims any proprietary interest in trademarks and trade names other than its own June 2010 Rev A00 Bac...

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