Dell 1745 Users Manual Studio 1745/1747 Service

Dell-Studio-1747-Service-Manual-112635 dell-studio-1747-service-manual-112635

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2015-02-09

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DellStudio™1745/1747ServiceManual 
Notes, Cautions, and Warnings 
Information in this document is subject to change without notice. 
©2009DellInc.Allrightsreserved. 
Reproduction of these materials in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden. 
Trademarks used in this text: Dell and the DELL logo are trademarks of Dell Inc.; Bluetooth is a registered trademark owned by Bluetooth SIG, Inc. and is used by Dell under 
license; Microsoft, Windows, Windows Vista, and Windows 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. 
RegulatoryModelP02ESeriesRegulatoryTypeP02E001 
August 2009 Rev. A00 
Before You Begin 
Battery 
Base Cover  
Hard Drive(s) 
Memory Module(s) 
Wireless Mini-Card 
Coin-Cell Battery 
Center Control Cover  
Keyboard 
Media Controls Board 
Display 
Camera  
Power Button Board  
Palm Rest  
Internal Card With Bluetooth®Wireless Technology  
Thermal Fan 
Media Card Reader Board  
Optical Drive 
USB Board 
Speakers  
System Board 
Processor Heat Sink 
Processor Module  
TV Antenna Cable Assembly 
Subwoofer Assembly 
AC Adapter Connector  
Battery Latch Assembly 
Flashing the BIOS 
NOTE: A NOTE indicates important information that helps you make better use of your computer. 
 
CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem. 
 
WARNING: A WARNING indicates a potential for property damage, personal injury, or death. 

Back to Contents Page

 AC Adapter Connector

DellStudio™1745/1747ServiceManual

Removing the AC Adapter Connector

Replacing the AC Adapter Connector



Removing the AC Adapter Connector



1. Follow the procedures in Before You Begin.



2. Remove the subwoofer assembly (see Removing the Subwoofer Assembly).



3. Make a note of the AC adapter connector cable routing and lift the AC adapter connector out of the computer base.

Replacing the AC Adapter Connector



1. Follow the procedures in Before You Begin.



2. Route the AC adapter connector cable and place the AC adapter connector on the computer base.



3. Replace the subwoofer assembly (see Replacing the Subwoofer Assembly).

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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.

AC adapter connector

AC adapter connector cable

Back to Contents Page

 Base Cover

DellStudio™1745/1747ServiceManual

Removing the Base Cover

Replacing the Base Cover



Removing the Base Cover



1. Follow the procedures in Before You Begin.



2. Remove the battery (see Removing the Battery).



3. Remove the six screws that secure the base cover to the computer base.



4. Lift the base cover off the computer at an angle as shown in the following illustration.

Replacing the Base Cover



1. Follow the procedures in Before You Begin.



2. Align the four tabs on the base cover with the slots on the computer base and gently snap it into place.



3. Replace the six screws that secure the base cover to the computer base.



4. Replace the battery (see Replacing the Battery).

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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.

screws (6)

base cover

tabs (4)



Back to Contents Page

 Battery Latch Assembly

DellStudio™1745/1747ServiceManual

Removing the Battery Latch Assembly

Replacing the Battery Latch Assembly



Removing the Battery Latch Assembly



1. Follow the procedures in Before You Begin.



2. Remove the subwoofer assembly (see Removing the Subwoofer Assembly).



3. Remove the three screws that secure the battery latch assembly to the computer base.



4. Using a small screwdriver, remove the latch spring on the battery latch assembly.



5. Lift the battery latch assembly out of the computer base.

Replacing the Battery Latch Assembly



1. Follow the procedures in Before You Begin.



2. Place the battery latch assembly on the computer base.



3. Using a small screwdriver, place the latch spring over the hook on the computer base.



4. Replace the three screws that secure the battery latch assembly to the computer base.



5. Replace the subwoofer assembly (see Replacing the Subwoofer 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) before working inside the

computer.

screws (3)

battery latch assembly

latch spring



Back to Contents Page



Back to Contents Page

 Before You Begin

DellStudio™1745/1747ServiceManual

Recommended Tools

Turning Off Your Computer

Before Working Inside Your Computer

This manual provides procedures for removing and installing components in your computer. Unless otherwise noted, each procedure assumes that the

following conditions exist:

lYou have performed the steps in Turning Off Your Computer and Before Working Inside Your Computer.

lYou have read the safety information that shipped with your computer.

lA component can be replaced or—if purchased separately—installed by performing the removal procedure in the reverse order.

Recommended Tools

The procedures in this document may require the following tools:

lSmall flat-blade screwdriver

lPhillips screwdriver

lPlastic scribe

lBIOS upgrade CD or the BIOS executable update program available on the Dell Support website at support.dell.com

Turning Off Your Computer



1. Save and close all open files and exit all open programs.



2. Shut down the operating system:

Windows® Vista:

Click Start , click the arrow , and then click Shut Down.

Windows® 7:

Click Start and then click Shut Down.



3. Ensure that the computer is turned off. If your computer did not automatically turn off when you shut down the operating system, press and hold the

power button until the computer turns off.

Before Working Inside Your Computer

Use the following safety guidelines to help protect your computer from potential damage and to help to ensure your own personal safety.



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 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 grounding strap or by periodically touching an unpainted metal

surface (such as a connector on your computer).

CAUTION: Handle components and cards with care. Do not touch the components or contacts on a card. Hold a card by its edges or by its metal

mounting bracket. Hold a component such as a processor by its edges, not by its pins.

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: When you disconnect a cable, pull on its connector or on its pull-tab, not on the cable itself. Some cables have connectors with locking

tabs; if you are disconnecting this type of cable, press in on the locking tabs before you disconnect the cable. As you pull connectors apart, keep

them evenly aligned to avoid bending any connector pins. Also, before you connect a cable, ensure that both connectors are correctly oriented

and aligned.



1. Ensure that the work 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.



4. Press and eject any installed cards from the ExpressCard slot or the 8-in-1 media card reader.



5. Disconnect your computer and all attached devices from their 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 display, and press the power button to ground the system board.

Back to Contents Page



CAUTION: To avoid damaging the computer, perform the following steps before you begin working inside the computer.

CAUTION: To disconnect a network cable, first unplug the cable from your computer and then unplug the cable from the network device.

CAUTION: To help prevent damage to the system board, remove the main battery (see "Removing the Battery" on page 13) before working

inside the computer.

Back to Contents Page

 Flashing the BIOS

DellStudio™1745/1747ServiceManual

Flashing the BIOS From a CD

Flashing the BIOS From the Hard Drive

If a BIOS upgrade CD is provided with the new processor or new system board, flash the BIOS from the CD. If you do not have a BIOS upgrade CD, flash the

BIOS from the hard drive.

Flashing the BIOS From a CD



1. Ensure that the AC adapter is plugged in and that the main battery is installed properly.



2. Insert the BIOS upgrade CD, and restart the computer.

Follow the procedures that appear on the screen. The computer continues to boot and updates the new BIOS. When the flash update is complete, the

computer will automatically restart.



3. Press <F2> during POST to enter the system setup program.



4. Press <Esc> and then click Load Setup Defaults and click Yes in the pop- up window to reset the computer defaults.



5. Remove the BIOS upgrade CD from the drive.



6. Select Exit Saving Changes and select Yes in the pop-up window to save configuration changes.



7. The BIOS upgrade finishes and the computer restarts automatically.

Flashing the BIOS From the Hard Drive



1. Ensure that the AC adapter is plugged in, the main battery is properly installed, and a network cable is attached.



2. Turn on the computer.



3. Go to the Dell Support website at support.dell.com.



4. Click Drivers & Downloads® Select Model.



5. Select the type of product in the Select Your Product Family list.



6. Select the product brand in the Select Your Product Line list.



7. Select the product model number in the Select Your Product Model list.



8. Click Confirm.



9. A list of results appear on the screen. Click BIOS.



10. Click Download Now to download the latest BIOS file.

The File Download window appears.



11. Click Save to save the file on your desktop. The file downloads to your desktop.



12. 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.



13. Double-click the file icon on the desktop and follow the procedures on the screen.

NOTE: If you use a BIOS upgrade CD to flash the BIOS, set up the computer to boot from a CD before inserting the CD.

NOTE: If you have selected a different model and want to start over again, click Start Over on the top right of the menu.

Back to Contents Page



Back to Contents Page

 Internal Card With Bluetooth®Wireless Technology

DellStudio™1745/1747ServiceManual

Removing the Bluetooth Card

Replacing the Bluetooth Card



If you ordered a card with Bluetooth wireless technology with your computer, it is already installed.

Removing the Bluetooth Card



1. Follow the procedures in Before You Begin.



2. Remove the battery (see Removing the Battery).



3. Remove the center control cover (see Removing the Center Control Cover).



4. Remove the keyboard (see Removing the Keyboard).



5. Remove the media controls board (see Removing the Media Controls Board).



6. Remove the palm rest (see Removing the Palm Rest).



7. Remove the screw that secures the Bluetooth card to the system board.



8. Lift the Bluetooth card to disconnect it from the system board connector.

Replacing the Bluetooth Card



1. Follow the procedures in Before You Begin.



2. Align the connector on the Bluetooth card with the connector on the system board and press the Bluetooth card until it is fully seated.



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.

Bluetooth card

system board connector

screw



3. Replace the screw that secures the Bluetooth card to the system board.  
 
 
4. Replace the palm rest (see Replacing the Palm Rest).  
 
 
5. Replace the media controls board (see Replacing the Media Controls Board).  
 
 
6. Replace the keyboard (see Replacing the Keyboard).  
 
 
7. Replace the center control cover (see Replacing the Center Control Cover).  
 
 
8. Replace the battery (see Replacing the Battery).  
 
Back to Contents Page 
 

Back to Contents Page

 Camera

DellStudio™1745/1747ServiceManual

Removing the Camera

Replacing the Camera



Removing the Camera



1. Follow the procedures in Before You Begin.



2. Remove the battery (see Removing the Battery).



3. Remove the base cover (see Removing the Base Cover).



4. Disconnect the antenna cables from the Mini-Card(s) (see Removing the Mini-Card).



5. Disconnect the subwoofer assembly cable from the subwoofer assembly cable connector on the system board (see Removing the Palm Rest).



6. Remove the center control cover (see Removing the Center Control Cover).



7. Remove the keyboard (see Removing the Keyboard).



8. Remove the media controls board (see Removing the Media Controls Board).



9. Remove the display assembly (see Removing the Display Assembly).



10. Remove the display panel (see Removing the Display Panel).



11. Remove the two screws that secure the camera module to the display cover.



12. Remove the camera module.

Replacing the Camera

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.

screws (2)

camera

camera cable connector



 
1. Follow the procedures in Before You Begin.  
 
 
2. Align the screw holes on the camera module with the screw holes on the display cover.  
 
 
3. Replace the two screws that secure the camera module to the display cover.  
 
 
4. Replace the display panel (see Replacing the Display Panel).  
 
 
5. Replace the display assembly (see Replacing the Display Assembly).  
 
 
6. Replace the media controls board (see Replacing the Media Controls Board).  
 
 
7. Replace the keyboard (see Replacing the Keyboard).  
 
 
8. Replace the center control cover (see Replacing the Center Control Cover).  
 
 
9. Connect the subwoofer assembly cable to the subwoofer assembly cable connector on the system board (see Replacing the Palm Rest).  
 
 
10. Connect the antenna cables to the Mini-Card(s) (see Replacing the Mini-Card).  
 
 
11. Replace the base cover (see Replacing the Base Cover).  
 
 
12. Replace the battery (see Replacing the Battery).  
 
Back to Contents Page 
 

Back to Contents Page

 Media Card Reader Board

DellStudio™1745/1747ServiceManual

Removing the Media Card Reader Board

Replacing the Media Card Reader Board



Removing the Media Card Reader Board



1. Follow the procedures in Before You Begin.



2. Press and eject any installed cards from the ExpressCard slot or the 8-in-1 media card reader.



3. Remove the battery (see Removing the Battery).



4. Remove the center control cover (see Removing the Center Control Cover).



5. Remove the keyboard (see Removing the Keyboard).



6. Remove the media controls board (see Removing the Media Controls Board).



7. Remove the palm rest (see Removing the Palm Rest).



8. Disconnect the media card reader board cable from the connector on the system board.



9. Remove the screw that secures the media card reader board to the computer base.



10. Lift the media card reader board out of the computer base.

Replacing the Media Card Reader Board



1. Follow the procedures in Before You Begin.



2. Place the media card reader board on the computer base and replace the screw that secures the media card reader board to 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.

screw

media card reader board

media card reader board cable connector



 
3. Connect the media card reader board cable to the connector on the system board.  
 
 
4. Replace the palm rest (see Replacing the Palm Rest).  
 
 
5. Replace the media controls board (see Replacing the Media Controls Board).  
 
 
6. Replace the keyboard (see Replacing the Keyboard).  
 
 
7. Replace the center control cover (see Replacing the Center Control Cover).  
 
 
8. Replace the battery (see Replacing the Battery).  
 
 
9. Reinstall any removed cards in the ExpressCard slot or the 8-in-1 media card reader.  
 
Back to Contents Page 
 

Back to Contents Page

 Center Control Cover

DellStudio™1745/1747ServiceManual

Removing the Center Control Cover

Replacing the Center Control Cover



Removing the Center Control Cover



1. Follow the procedures in Before You Begin.



2. Remove the battery (see Removing the Battery).



3. Remove the screw that secures the center control cover to the computer base.



4. Turn the computer over and open the display as far as it will open.



5. Pry out the center control cover with a plastic scribe starting from the back of the computer.



6. Ease the center control cover up.

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.

center control cover

plastic scribe

Replacing the Center Control Cover



1. Follow the procedures in Before You Begin.



2. Align the tabs on the center control cover with the slots on the palm rest and snap the cover in place.



3. Turn the computer over and replace the screw that secures the center control cover to the computer base.



4. Replace the battery (see Replacing the Battery).

Back to Contents Page



Back to Contents Page

 Coin-Cell Battery

DellStudio™1745/1747ServiceManual

Removing the Coin-Cell Battery

Replacing the Coin-Cell Battery



Removing the Coin-Cell Battery



1. Follow the procedures in Before You Begin.



2. Remove the battery (see Removing the Battery).



3. Remove the base cover (see Removing the Base Cover).



4. Disconnect the coin-cell battery cable from the coin-cell battery cable connector on the system board.



5. Using a plastic scribe, pry the coin-cell battery off the computer base.

Replacing the Coin-Cell Battery



1. Follow the procedures in Before You Begin.



2. Place the coin-cell battery on the computer base.



3. Connect the coin-cell battery cable to the coin-cell battery cable connector on the system board.



4. Replace the base cover (see Replacing the Base Cover).



5. Replace the battery (see Replacing the Battery).

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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.

coin-cell battery

coin-cell battery cable connector

Back to Contents Page

 Processor Module

DellStudio™1745/1747ServiceManual

Removing the Processor Module

Replacing the Processor Module



Removing the Processor Module



1. Follow the procedures in Before You Begin.



2. Remove the central processor heat sink (see Removing the Central Processor Heat Sink).



3. 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.



4. Lift the processor module from the ZIF socket.

Replacing the 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 prevent intermittent contact between the ZIF-socket cam screw and the processor when removing or replacing the processor, press

to apply slight pressure to the center of the processor while turning the cam screw.

CAUTION: To avoid damage to the processor, hold the screwdriver so that it is perpendicular to the processor when turning the cam screw.

CAUTION: To help prevent damage to the system board, remove the main battery (see Removing the Battery) before working inside the

computer.

ZIF socket

ZIF-socket cam screw

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.



1. Follow the procedures in Before You Begin.



2. Align the pin-1 corner of the processor module with the pin-1 corner of the ZIF socket, then insert the processor module.

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.



3. Tighten the ZIF socket by turning the cam screw clockwise to secure the processor module to the system board.



4. Replace the central processor heat sink (see Replacing the Central Processor Heat Sink).

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 proper installation.

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.

CAUTION: To avoid damage to the processor, hold the screwdriver perpendicular to the processor when turning the cam screw.

Back to Contents Page

 Processor Heat Sink

DellStudio™1745/1747ServiceManual

Central Processor Heat Sink

Graphic Processor Heat Sink



Central Processor Heat Sink



Removing the Central Processor Heat Sink



1. Follow the instructions in Before You Begin.



2. Remove the battery (see Removing the Battery).



3. Follow the instructions from step 2 to step 20 in Removing the System Board.



4. In sequential order (indicated on the processor heat sink), loosen the four captive screws that secure the processor heat sink to the system board.



5. Lift the central processor heat sink off the system board.



Replacing the Central Processor Heat Sink



1. Follow the procedures in Before You Begin.



2. Place the central processor heat sink on the system board.



3. Align the four captive screws on the central processor heat sink with the screw holes on the system board and tighten the screws in sequential order

(indicated on the processor heat sink).



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.

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.

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.

captive screws (4)

central processor heat sink

NOTE: This procedure assumes that you have already removed the central processor heat sink and are ready to replace it.



4. Follow the instructions from step 5 to step 21 in Replacing the System Board.



5. Replace the battery (see Replacing the Battery).

Graphic Processor Heat Sink



Removing the Graphic Processor Heat Sink



1. Follow the instructions in Before You Begin.



2. Remove the battery (see Removing the Battery).



3. Follow the instructions from step 2 to step 20 in Removing the System Board.



4. In sequential order (indicated on the processor heat sink), loosen the four captive screws that secure the processor heat sink to the system board.



5. Lift the graphic processor heat sink off the system board.



Replacing the Graphic Processor Heat Sink



1. Follow the procedures in Before You Begin.



2. Place the graphic processor heat sink on the system board.



3. Align the four captive screws on the graphic processor heat sink with the screw holes on the system board and tighten the screws in sequential order

(indicated on the processor heat sink).



4. Follow the instructions from step 5 to step 21 in Replacing the System Board.



5. Replace the battery (see Replacing the Battery).

Back to Contents Page



screws (4)

graphic processor heat sink

NOTE: This procedure assumes that you have already removed the graphic processor heat sink and are ready to replace it.

Back to Contents Page

 Display

DellStudio™1745/1747ServiceManual

Display Assembly

Display Bezel

Display Panel

Display Panel Cable



Display Assembly



Removing the Display Assembly



1. Follow the procedures in Before You Begin.



2. Remove the battery (see Removing the Battery).



3. Remove the base cover (see Removing the Base Cover).



4. Disconnect the antenna cables from the Mini-Card(s) (see Removing the Mini-Card).



5. Disconnect the subwoofer assembly cable from the subwoofer assembly cable connector on the system board (see Removing the Palm Rest).



6. Remove the two screws from the computer base.



7. Remove the center control cover (see Removing the Center Control Cover).



8. Remove the keyboard (see Removing the Keyboard).



9. Remove the media controls board (see Removing the Media Controls Board).



10. Remove the screw that secures the display cable to 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.

antenna cables

subwoofer assembly cable



11. Disconnect the display cable, camera cable, and power button cable from the respective system board connectors.



12. Make note of the antenna cable and subwoofer cable routing, and carefully dislodge the cables from the routing guides and release them through the

slot.



13. Make note of the display cable, power button cable, and camera cable routing and carefully dislodge the cables form their routing guides.



14. Remove the four screws (two on each side) that secure the display assembly to the computer base.



15. Lift and remove the display assembly from the computer base.



Replacing the Display Assembly



1. Follow the procedures in Before You Begin.



2. Place the display assembly in position and replace the four screws (two on each side) that secure the display assembly to the computer base.



3. Route the antenna cables and subwoofer cable through the slot and routing guides.



4. Route the display cable, power button cable, and camera cable through their routing guides.

display assembly

screws (4)

power button cable connector

camera cable connector

display cable connector



5. Connect the display cable, camera cable, and power button cable to the respective system board connectors.



6. Replace the screw that secures the display cable to the computer base.



7. Replace the media controls board (see Replacing the Media Controls Board).



8. Replace the keyboard (see Replacing the Keyboard).



9. Replace the center control cover (see Replacing the Center Control Cover).



10. Replace the two screws at the bottom of the computer.



11. Connect the subwoofer assembly cable to the subwoofer assembly cable connector on the system board.



12. Connect the antenna cables to the Mini-Card(s) (see Replacing the Mini-Card).



13. Replace the base cover (see Replacing the Base Cover).



14. Replace the battery (see Replacing the Battery).

Display Bezel



Removing the Display Bezel



1. Follow the procedures in Before You Begin.



2. Remove the display assembly (see Removing the Display Assembly).



3. Using your fingertips, carefully pry up the inside edge of the display bezel.



4. Remove the display bezel.



Replacing the Display Bezel



1. Follow the procedures in Before You Begin.



2. Realign the display bezel over the display panel, and gently snap into place.



3. Replace the display assembly (see Replacing the Display Assembly).

CAUTION: The display bezel is extremely fragile. Be careful when removing it to prevent damaging the bezel.

display bezel

Display Panel



Removing the Display Panel



1. Follow the procedures 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 eight screws that secure the display panel to the display cover.



5. Remove the antenna cables, power button cable, and display cable from the hinge latches.



6. Disconnect the camera cable from the connector on the camera board (see Removing the Camera).



7. Lift the display panel off the display cover.



8. Remove the eight screws (four on each side) that secure the display panel brackets to the display panel.



Replacing the Display Panel



1. Follow the procedures in Before You Begin.



2. Replace the eight screws (four on each side) that secure the display panel brackets to the display panel.



3. Connect the camera cable to the connector on the camera board (see Replacing the Camera).

screws (8)

display panel

display cover



display panel brackets (2)

screws (8)



4. Align the screw holes on the display panel with the holes on the display cover.



5. Replace the eight screws that secure the display panel to the display cover.



6. Route the antenna cables, power button cable, and display cable through the hinge latches.



7. Replace the display bezel (see Replacing the Display Bezel).



8. Replace the display assembly (see Replacing the Display Assembly).

Display Panel Cable



Removing the Display Panel Cable



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 display panel (see Removing the Display Panel).



5. Turn the display panel over and place it on a clean surface.



6. Lift the tape that secures the display cable to the display board connector and disconnect the display cable.



Replacing the Display Panel Cable



1. Follow the procedures in Before You Begin.



2. Connect the display cable to the display board connector and secure it with the tape.



3. Replace the display panel (see Replacing the Display Panel).



4. Replace the display bezel (see Replacing the Display Bezel).



5. Replace the display assembly (see Replacing the Display Assembly).

Back to Contents Page



display board connector

tape

display cable

back of the display panel

Back to Contents Page

 Thermal Fan

DellStudio™1745/1747ServiceManual

Removing the Thermal Fan

Replacing the Thermal Fan



Removing the Thermal Fan



1. Follow the procedures in Before You Begin.



2. Remove the battery (see Removing the Battery).



3. Remove the center control cover (see Removing the Center Control Cover).



4. Remove the keyboard (see Removing the Keyboard).



5. Remove the media controls board (see Removing the Media Controls Board).



6. Remove the palm rest (see Removing the Palm Rest).



7. Disconnect the thermal fan cable from the thermal fan cable connector on the system board.



8. Remove the two screws that secure the thermal fan to the computer base.



9. Lift the thermal fan along with the cable, off the computer base.

Replacing the Thermal Fan



1. Follow the procedures in Before You Begin.



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.

thermal fan cable connector

thermal fan

screws (2)



2. Place the thermal fan on the computer base and replace the two screws that secure the thermal fan to the computer base.  
 
 
3. Connect the thermal fan cable to the thermal fan cable connector on the system board.  
 
 
4. Replace the palm rest (see Replacing the Palm Rest).  
 
 
5. Replace the media controls board (see Replacing the Media Controls Board).  
 
 
6. Replace the keyboard (see Replacing the Keyboard).  
 
 
7. Replace the center control cover (see Replacing the Center Control Cover).  
 
 
8. Replace the battery (see Replacing the Battery).  
 
Back to Contents Page 
 

Back to Contents Page

 Hard Drive(s)

DellStudio™1745/1747ServiceManual

Removing the Hard Drive(s)

Replacing the Hard Drive(s)



Removing the Hard Drive(s)



1. Follow the procedures in Before You Begin.



2. Remove the battery (see Removing the Battery).



3. Remove the base cover (see Removing the Base Cover).



4. Remove the hard drive(s) from the computer base.

lFor hard drive 1:

¡Remove the four screws that secure the hard drive assembly to the computer base.

¡Using the pull-tab, slide the hard drive towards the left to disconnect the hard drive assembly from the connector on the system board.

¡Lift the hard drive assembly out of the computer base.

¡Remove the four screws that secure the hard drive cage to 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 Homepage at www.dell.com/regulatory_compliance.

WARNING: If you remove the hard drive from the computer when the drive is hot, do not touch the metal housing of the hard drive.

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 prevent data loss, turn off your computer (see Turning Off Your Computer) before removing the hard drive. Do not remove the hard

drive while the computer is On or in Sleep state.

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: Hard drives are extremely fragile. Exercise care when handling the hard drive.

CAUTION: To help prevent damage to the system board, remove the main battery (see Removing the Battery) before working inside the

computer.

NOTE: Dell does not guarantee compatibility or provide support for hard drives from sources other than Dell.

NOTE: If you are installing a hard drive from a source other than Dell, you need to install an operating system, drivers, and utilities on the new hard

drive (see the Dell Technology Guide).

CAUTION: When the hard drive is not in the computer, store it in protective antistatic packaging (see "Protecting Against Electrostatic Discharge"

in the safety instructions that shipped with your computer).

pull-tab

hard drive assembly

screws (4)



lFor hard drive 2:

¡Remove the three screws that secure the hard drive assembly to the computer base.

¡Using the pull-tab, lift the hard drive to disconnect the hard drive from the connector on the system board.

¡Lift the hard drive assembly out of the computer base.

¡Remove the four screws that secure the hard drive cage to the hard drive.

¡Pull the interposer to disconnect it from the hard drive.

hard drive

screws (4)

hard drive cage



screws (3)

hard drive assembly

pull-tab



hard drive

screws (4)

hard drive cage



5. Lift the hard drive off the hard drive cage.

Replacing the Hard Drive(s)



1. Follow the procedures in Before You Begin.



2. Remove the new drive from its packaging.

Save the original packaging for storing or shipping the hard drive.



3. Replace the hard drive(s) in the computer base.

lFor hard drive 1:

¡Replace the four screws that secure the hard drive cage to the hard drive.

¡Place the hard drive assembly in the hard drive compartment.

¡Using the pull-tab, slide the hard drive assembly to connect it to the system board connector.

¡Replace the four screws that secure the hard drive assembly to the computer base.

lFor hard drive 2:



¡Connect the interposer to the hard drive.

¡Replace the four screws that secure the hard drive cage to the hard drive.

¡Place the hard drive assembly in the hard drive compartment.

¡Align the connector on the hard drive with the connector on the system board and press the hard drive until it is fully seated.

¡Replace the three screws that secure the hard drive assembly to the computer base.



4. Replace the base cover (see Replacing the Base Cover).



5. Replace the battery (see Replacing the Battery).



6. Install the operating system for your computer, as needed. See "Restoring Your Operating System" in the Setup Guide.



7. Install the drivers and utilities for your computer, as needed. For more information, see the Dell Technology Guide.

Back to Contents Page



hard drive

interposer

CAUTION: Use firm and even pressure to slide the drive into place. If you use excessive force, you may damage the connector.

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.

Back to Contents Page

 Keyboard

DellStudio™1745/1747ServiceManual

Removing the Keyboard

Replacing the Keyboard



Removing the Keyboard



1. Follow the procedures in Before You Begin.



2. Remove the battery (see Removing the Battery).



3. Remove the center control cover (see Removing the Center Control Cover).



4. Remove the four screws that secure the keyboard to the palm rest.



5. Ease the keyboard up until it clears off the palm rest.



6. Without pulling hard on the keyboard, turn it over and place it over the palm rest.



7. Lift the connector latch that secures the keyboard cable to the system board connector and remove the cable.



8. Lift the connector latch that secures the backlit keyboard cable to the system board connector and remove the cable.



9. Lift the keyboard off the computer.

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.

CAUTION: The keycaps on the keyboard are fragile, easily dislodged, and time-consuming to replace. Be careful when removing and handling the

keyboard.

CAUTION: Be extremely careful when removing and handling the keyboard. Failure to do so could result in scratching the display panel.

screws (4)

backlit keyboard cable connector

keyboard cable connector

keyboard tabs (6)

keyboard



Replacing the Keyboard



1. Follow the procedures in Before You Begin.



2. Slide the keyboard cable into the connector on the system board. Press down on the connector latch to secure the cable to the system board connector.



3. Slide the backlit keyboard cable into the connector on the system board. Press down on the connector latch to secure the cable to the system board

connector.



4. Align the six tabs on the keyboard with the slots on the palm rest.



5. Place the keyboard on the palm rest.



6. Replace the four screws that secure the keyboard to the palm rest.



7. Replace the center control cover (see Replacing the Center Control Cover).



8. Replace the battery (see Replacing the Battery).

Back to Contents Page



Back to Contents Page

 Media Controls Board

DellStudio™1745/1747ServiceManual

Removing the Media Controls Board

Replacing the Media Controls Board



Removing the Media Controls Board



1. Follow the procedures in Before You Begin.



2. Remove the battery (see Removing the Battery).



3. Remove the center control cover (see Removing the Center Control Cover).



4. Remove the keyboard (see Removing the Keyboard).



5. Remove the three screws that secure the media controls board to the computer base.



6. Lift the connector latch to release the media controls board cable from the media controls board cable connector on the system board.



7. Lift the media controls board off the computer base.

Replacing the Media Controls Board



1. Follow the procedures in Before You Begin.



2. Align the screw holes on the media controls board with the holes on the computer base.



3. Replace the three screws that secure the media controls board to the computer base.



4. Slide the media controls board cable into the media controls board cable connector on the system board and press down on the connector latch to

secure the cable to the connector.



5. Replace the keyboard (see Replacing the Keyboard).

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.

screws (3)

media controls board

media controls board cable connector



6. Replace the center control cover (see Replacing the Center Control Cover).



7. Replace the battery (see Replacing the Battery).

Back to Contents Page



Back to Contents Page

 Memory Module(s)

DellStudio™1745/1747ServiceManual

Removing the Memory Module(s)

Replacing the Memory Module(s)



You can increase your computer memory by installing memory modules on the system board. See "Specifications" in your Setup Guide for information on the

type of memory supported by your computer.

Your computer has two user-accessible SODIMM sockets, DDR III A and DDR III B, that can be accessed from the bottom of the computer.

Removing the Memory Module(s)



1. Follow the procedures in Before You Begin.



2. Remove the battery (see Removing the Battery).



3. Remove the base cover (see Removing the Base Cover).



4. Use your fingertips to carefully spread apart the securing clips on each end of the memory module connector until the module pops up.



5. Remove the memory module from the memory module connector.

Replacing the Memory Module(s)



1. Follow the procedures in Before You Begin.

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.

NOTE: MemorymodulespurchasedfromDell™arecoveredunderyourcomputerwarranty.

CAUTION: To prevent damage to the memory module connector, do not use tools to spread the memory module securing clips.

memory module connector

securing clips (2)

memory module



CAUTION: If you need to install memory modules in two connectors, install a memory module in the connector labeled "DDR III A" before you

install a memory module in the connector labeled "DDR III B."



2. Align the notch in the memory module with the tab in the memory module connector.



3. Slide the memory module firmly into the slot at a 45-degree angle, and press the memory module down until it clicks into place. If you do not hear the

click, remove the memory module and reinstall it.



4. Replace the base cover (see Replacing the Base Cover).



5. Replace the battery (see Replacing the Battery), or connect the AC adapter to your computer and an electrical outlet.



6. 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 ® Help and Support® Dell System Information.

Back to Contents Page



NOTE: If the memory module is not installed properly, the computer may not boot.

tab

notch

Back to Contents Page

 Wireless Mini-Card

DellStudio™1745/1747ServiceManual

Removing the Mini-Card

Replacing the Mini-Card



If you ordered a wireless Mini-Card with your computer, the card is already installed.

Your computer supports one full Mini-Card slot and two half Mini-Card slots:

lOne full Mini-Card slot — Mobile broadband or Wireless Wide Area Network (WWAN)

lOne half Mini-Card slot — Wireless Local Area Network (WLAN), or Worldwide Interoperability for Microwave Access (WiMax)

lOne half Mini-Card slot — TV tuner module

Removing the Mini-Card



1. Follow the instructions in Before You Begin.



2. Remove the battery (see Removing the Battery).



3. Remove the base cover (see Removing the Base Cover).



4. Disconnect the antenna cables from the Mini-Card.

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.

CAUTION: When the Mini-Card is not in the computer, store it in protective antistatic packaging (see "Protecting Against Electrostatic Discharge"

in the safety instructions that shipped with your computer).

NOTE: Dell does not guarantee compatibility or provide support for Mini-Cards from sources other than Dell.

NOTE: Depending on the configuration of the computer when it was sold, the Mini-Card slots may or may not have Mini-Cards installed in them.

CAUTION: When you disconnect a cable, pull on its connector or on its pull-tab, not on the cable itself. Some cables have connectors with locking

tabs; if you are disconnecting this type of cable, press in on the locking tabs before you disconnect the cable. As you pull connectors apart, keep

them evenly aligned to avoid bending any connector pins. Also, before you connect a cable, ensure that both connectors are correctly oriented

and aligned.



5. Remove the screw that secures the Mini-Card to the system board connector.



6. Lift the Mini-Card out of the system board connector.

Replacing the Mini-Card



1. Follow the procedures in Before You Begin.



2. Remove the new Mini-Card from its packaging.



3. Insert the Mini-Card connector at a 45-degree angle into the appropriate system board connector. For example, the WLAN card connector is labeled

WLAN and so on.



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

connector.



5. Connect the appropriate antenna cables to the Mini-Card you are installing. The following table provides the antenna cable color scheme for each Mini-

Card supported by your computer.



6. Secure the unused antenna cables in the protective mylar sleeve.



7. Replace the base cover (see Replacing the Base Cover).



8. Replace the battery (see Replacing the Battery).



9. Install the drivers and utilities for your computer, as required. For more information, see the Dell Technology Guide.

Mini-Card

securing screw

antenna cable connectors (2)

CAUTION: Use firm and even pressure to slide the card into place. If you use excessive force, you may damage the connector.

CAUTION: The connectors are keyed to ensure correct insertion. If you feel resistance, check the connectors on the card and on the system

board, and realign the card.

CAUTION: To avoid damage to the Mini-Card, never place cables under the card.

Connectors on the Mini-Card

Antenna Cable Color Scheme

WWAN (2 antenna cables)

Main WWAN (white triangle)

Auxiliary WWAN (black triangle)



white with gray stripe

black with gray stripe

WLAN (2 antenna cables)

Main WLAN (white triangle)

Auxiliary WLAN (black triangle)



white

black

TV tuner (1 antenna cable)

black

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. For more generic

driver information, see the Dell Technology Guide.

Back to Contents Page

 Optical Drive

DellStudio™1745/1747ServiceManual

Removing the Optical Drive

Replacing the Optical Drive



Removing the Optical Drive



1. Follow the procedures in Before You Begin.



2. Remove the battery (see Removing the Battery).



3. Remove the center control cover (see Removing the Center Control Cover).



4. Remove the keyboard (see Removing the Keyboard).



5. Remove the media controls board (see Removing the Media Controls Board).



6. Remove the palm rest (see Removing the Palm Rest).



7. Remove the media card reader board (see Removing the Media Card Reader Board).



8. Remove the three screws that secure the optical drive to the computer base.



9. Lift the optical drive to disconnect the optical drive from the connector on the system board.



10. Lift the optical drive out of the computer base.



11. Disconnect the interposer from the optical 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 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.

optical drive

screws (3)

Replacing the Optical Drive



1. Follow the procedures in Before You Begin.



2. Connect the interposer to the optical drive.



3. Align the connector on the optical drive with the connector on the system board and press the optical drive until it is fully seated.



4. Replace the three screws that secure the optical drive to the computer base.



5. Replace the media card reader board (see Replacing the Media Card Reader Board).



6. Replace the palm rest (see Replacing the Palm Rest).



7. Replace the media controls board (see Replacing the Media Controls Board).



8. Replace the keyboard (see Replacing the Keyboard).



9. Replace the center control cover (see Replacing the Center Control Cover).



10. Replace the battery (see Replacing the Battery).

Back to Contents Page



interposer

Back to Contents Page

 Palm Rest

DellStudio™1745/1747ServiceManual

Removing the Palm Rest

Replacing the Palm Rest



Removing the Palm Rest



1. Follow the procedures in Before You Begin.



2. Press and eject any installed cards from the ExpressCard slot or the 8-in-1 media card reader.



3. Remove the battery (see Removing the Battery).



4. Remove the base cover (see Removing the Base Cover).



5. Disconnect the antenna cables from the Mini-Card(s) (see Removing the Mini-Card).



6. Disconnect the subwoofer assembly cable from the subwoofer assembly cable connector on the system board.



7. Remove the twelve screws from the computer base.



8. Remove the center control cover (see Removing the Center Control Cover).



9. Remove the keyboard (see Removing the Keyboard).



10. Remove the media controls board (see Removing the Media Controls Board).



11. Remove the six screws 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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.



12. Disconnect the display cable, camera cable, power button cable, and the touch pad cable from the respective system board connectors.



13. Make note of the antenna cable and subwoofer cable routing, and carefully dislodge the cables from the routing guides and release them through the

slot.



14. Make note of the display cable, power button cable, and camera cable routing and carefully dislodge the cables form their routing guides.

CAUTION: Pull on the plastic tab on top of the connectors to avoid damaging the connectors.

subwoofer assembly cable connector

routing guides

antenna cables

cable routing slot

camera cable

display cable



15. Starting at the right or left of the palm rest, use your fingers to separate the palm rest from the computer base.



16. Release the subwoofer assembly cable through the slot in the palm rest.



17. Lift the palm rest off the computer base.

Replacing the Palm Rest



1. Follow the procedures in Before You Begin.



2. Guide the subwoofer assembly cable through the slot in the palm rest.



3. Align the palm rest with the computer base and gently snap the palm rest into place.



4. Route the antenna cables, display cable, power button cable, and subwoofer assembly cable through the routing guides.



5. Connect the display cable, camera cable, power button cable, and the touch pad cable to the respective system board connectors.



6. Replace the six screws on the palm rest.



7. Replace the media controls board (see Replacing the Media Controls Board).



8. Replace the keyboard (see Replacing the Keyboard).



9. Replace the center control cover (see Replacing the Center Control Cover).



10. Replace the twelve screws at the bottom of the computer.



11. Connect the antenna cables to the Mini-Card(s) (see Replacing the Mini-Card).



12. Connect the subwoofer assembly cable to the subwoofer assembly cable connector on the system board.



13. Replace the base cover (see Replacing the Base Cover).



14. Replace the battery (see Replacing the Battery).



CAUTION: Carefully separate the palm rest from the computer base to avoid damage to the palm rest.

touch pad cable connector

palm rest

display cable connector

camera cable connector

power button cable connector

subwoofer assembly cable slot



15. Reinstall any removed cards in the ExpressCard slot or the 8-in-1 media card reader.

Back to Contents Page



Back to Contents Page

 Power Button Board

DellStudio™1745/1747ServiceManual

Removing the Power Button Board

Replacing the Power Button Board



Removing the Power Button Board



1. Follow the procedures in Before You Begin.



2. Remove the battery (see Removing the Battery).



3. Remove the base cover (see Removing the Base Cover).



4. Disconnect the antenna cables from the Mini-Card(s) (see Removing the Mini-Card).



5. Disconnect the subwoofer assembly cable from the subwoofer assembly cable connector on the system board (see Removing the Palm Rest).



6. Remove the center control cover (see Removing the Center Control Cover).



7. Remove the keyboard (see Removing the Keyboard).



8. Remove the media controls board (see Removing the Media Controls Board).



9. Remove the display assembly (see Removing the Display Assembly).



10. Remove the display panel (see Removing the Display Panel).



11. Remove the screw that secures the power button board to the display cover.



12. Release the power button board from the notch on the display cover and remove the power button board off the display 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: 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.

power button board

screw

Replacing the Power Button Board  
 
1. Follow the procedures in Before You Begin.  
 
 
2. Secure the power button board using the notch on the display cover.  
 
 
3. Replace the screw that secures the power button board to the display cover.  
 
 
4. Replace the display panel (see Replacing the Display Panel).  
 
 
5. Replace the display assembly (see Replacing the Display Assembly).  
 
 
6. Replace the media controls board (see Replacing the Media Controls Board).  
 
 
7. Replace the keyboard (see Replacing the Keyboard).  
 
 
8. Replace the center control cover (see Replacing the Center Control Cover).  
 
 
9. Connect the subwoofer assembly cable to the subwoofer assembly cable connector on the system board (see Replacing the Palm Rest).  
 
 
10. Connect the antenna cables to the Mini-Card(s) (see Replacing the Mini-Card).  
 
 
11. Replace the base cover (see Replacing the Base Cover).  
 
 
12. Replace the battery (see Replacing the Battery).  
 
Back to Contents Page 
 

Back to Contents Page

 Battery

DellStudio™1745/1747ServiceManual

Removing the Battery

Replacing the Battery



Removing the Battery



1. Shut down the computer and turn it over.



2. Slide the battery release latch until it clicks into place.



3. Slide the battery out of the battery bay.

Replacing the Battery

Slide the battery into the battery bay until it clicks into place.

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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 avoid damage to the computer, use only the battery designed for this particular Dell computer. Do not use batteries designed for

other Dell computers.

battery

battery release latch

Back to Contents Page

 Speakers

DellStudio™1745/1747ServiceManual

Removing the Speakers

Replacing the Speakers



Removing the Speakers



1. Follow the procedures in Before You Begin.



2. Remove the battery (see Removing the Battery).



3. Remove the center control cover (see Removing the Center Control Cover).



4. Remove the keyboard (see Removing the Keyboard).



5. Remove the media controls board (see Removing the Media Controls Board).



6. Remove the palm rest (see Removing the Palm Rest).



7. Disconnect the speaker cable from the speaker cable connector on the system board.



8. Remove the four screws that secure the speakers to the computer base.



9. Lift the speakers off the computer base.

Replacing the Speakers



1. Follow the procedures in Before You Begin.



2. Place the speakers on the computer base and replace the four screws that secure the speakers to 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.

speakers (2)

speaker cable connector

screws (4)



3. Connect the speaker cable to the speaker cable connector on the system board.  
 
 
4. Replace the palm rest (see Replacing the Palm Rest).  
 
 
5. Replace the media controls board (see Replacing the Media Controls Board).  
 
 
6. Replace the keyboard (see Replacing the Keyboard).  
 
 
7. Replace the center control cover (see Replacing the Center Control Cover).  
 
 
8. Replace the battery (see Replacing the Battery).  
 
Back to Contents Page 
 

Back to Contents Page

 Subwoofer Assembly

DellStudio™1745/1747ServiceManual

Removing the Subwoofer Assembly

Replacing the Subwoofer Assembly



Removing the Subwoofer Assembly



1. Follow the procedures in Before You Begin.



2. Remove the battery (see Removing the Battery).



3. Follow the instructions from step 2 to step 19 in Removing the System Board.



4. Loosen the three captive screws that secure the subwoofer assembly to the computer base.



5. Lift the subwoofer assembly out of the computer base.

Replacing the Subwoofer Assembly



1. Follow the procedures in Before You Begin.



2. Place the subwoofer assembly on the computer base.



3. Tighten the three captive screws that secure the subwoofer assembly to the computer base.



4. Follow the instructions from step 6 to step 21 in Replacing the System Board.



5. Replace the battery (see Replacing the Battery).

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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.

captive screws (3)

subwoofer assembly

Back to Contents Page

 System Board

DellStudio™1745/1747ServiceManual

Removing the System Board

Replacing the System Board

Entering the Service Tag in the BIOS



Removing the System Board



1. Follow the procedures in Before You Begin.



2. Press and eject any installed cards from the ExpressCard slot or the 8-in-1 media card reader.



3. Remove the battery (see Removing the Battery).



4. Remove the base cover (see Removing the Base Cover).



5. Remove the memory module(s) (see Removing the Memory Module(s)).



6. Remove the Mini-Card(s) (see Removing the Mini-Card).



7. Remove the hard drive(s) (see Removing the Hard Drive(s)).



8. Remove the coin-cell battery (see Removing the Coin-Cell Battery).



9. Remove the center control cover (see Removing the Center Control Cover).



10. Remove the keyboard (see Removing the Keyboard).



11. Remove the media controls board (see Removing the Media Controls Board).



12. Remove the palm rest (see Removing the Palm Rest).



13. Remove the Bluetooth card (see Removing the Bluetooth Card).



14. Remove the thermal fan (see Removing the Thermal Fan).



15. Remove the media card reader board (see Removing the Media Card Reader Board).



16. Remove the optical drive (see Removing the Optical Drive).



17. Remove the seven screws that secure the system board assembly to 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.



18. Disconnect the speaker cable, USB board cable, and the AC adapter cable from the connectors on the system board.



19. Lift the system board assembly at an angle toward the side of the computer and out of the computer base.



20. Turn the system board assembly over.



21. Remove the central processor heat sink (see Removing the Central Processor Heat Sink).



22. Remove the graphic processor heat sink (see Removing the Graphic Processor Heat Sink).



23. Remove the processor module (see Removing the Processor Module).

Replacing the System Board



1. Follow the procedures in Before You Begin.



2. Replace the processor module (see Replacing the Processor Module).



3. Replace the central processor heat sink (see Replacing the Central Processor Heat Sink).



4. Replace the graphic processor heat sink (see Replacing the Graphic Processor Heat Sink).



5. Turn the system board assembly over.



6. Place the system board assembly on the computer base.



7. Connect the speaker cable, USB board cable, and the AC adapter cable to the connectors on the system board.



8. Replace the seven screws that secure the system board assembly to the computer base.

AC adapter cable connector

USB board cable connector

speaker cable connector

system board

 
 
9. Replace the optical drive (see Replacing the Optical Drive).  
 
 
10. Replace the media card reader board (see Replacing the Media Card Reader Board).  
 
 
11. Replace the thermal fan (see Replacing the Thermal Fan).  
 
 
12. Replace the Bluetooth card (see Replacing the Bluetooth Card).  
 
 
13. Replace the palm rest (see Replacing the Palm Rest).  
 
 
14. Replace the media controls board (see Replacing the Media Controls Board).  
 
 
15. Replace the keyboard (see Replacing the Keyboard).  
 
 
16. Replace the center control cover (see Replacing the Center Control Cover).  
 
 
17. Replace the coin-cell battery (see Replacing the Coin-Cell Battery).  
 
 
18. Replace the hard drive(s) (see Replacing the Hard Drive(s)).  
 
 
19. Replace the Mini-Card(s) (see Replacing the Mini-Card).  
 
 
20. Replace the memory module(s) (see Replacing the Memory Module(s)).  
 
 
21. Replace the base cover (see Replacing the Base Cover).  
 
 
22. Replace the battery (see Replacing the Battery).  
 
 
23. Reinstall any removed cards in the ExpressCard slot or the 8-in-1 media card reader.  
 
 
 
24. Turn on the computer.  
 
 
25. Enter the service tag (see Entering the Service Tag in the BIOS).  
 
Entering the Service Tag in the BIOS  
 
1. Ensure that the AC adapter is plugged in and that the main battery is installed properly.  
 
 
2. Turn on the computer.  
 
 
3. Press <F2> during POST to enter the system setup program.  
 
 
4. Navigate to the security tab and enter the service tag in the Set Service Tag field.  
 
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.
 
NOTE: After you have replaced the system board, enter the computer Service Tag in the BIOS of the replacement system board.

Back to Contents Page

DellStudio™1745/1747ServiceManual

Information in this document is subject to change without notice.

Reproduction of these materials in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden.

Trademarks used in this text: Dell and the DELL logo are trademarks of Dell Inc.; Bluetooth is a registered trademark owned by Bluetooth SIG, Inc. and is used by Dell under

license; Microsoft, Windows, Windows Vista, and Windows 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.

August 2009 Rev. A00

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

NOTE: A NOTE indicates important information that helps you make better use of your computer.

CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.

WARNING: A WARNING indicates a potential for property damage, personal injury, or death.

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 TV Antenna Cable Assembly

DellStudio™1745/1747ServiceManual

Removing the TV Antenna Cable Assembly

Replacing the TV Antenna Cable Assembly



Removing the TV Antenna Cable Assembly



1. Follow the procedures in Before You Begin.



2. Remove the battery (see Removing the Battery).



3. Follow the instructions from step 2 to step 19 in Removing the System Board.



4. Remove the two screws that secure the TV antenna cable assembly to the computer base.



5. Release the TV antenna cable assembly from the routing guides on the computer base.



6. Lift the TV antenna cable assembly off the computer base.

Replacing the TV Antenna Cable Assembly



1. Follow the procedures in Before You Begin.



2. Route the TV antenna cable assembly through the routing guides on the computer base.



3. Replace the two screws that secure the TV antenna cable assembly to the computer base.



4. Follow the instructions from step 6 to step 21 in Replacing the System Board.



5. Replace the battery (see Replacing the Battery).

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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.

screws (2)

TV antenna cable assembly

routing guides



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 USB Board

DellStudio™1745/1747ServiceManual

Removing the USB Board

Replacing the USB Board



Removing the USB Board



1. Follow the procedures in Before You Begin.



2. Remove the battery (see Removing the Battery).



3. Remove the center control cover (see Removing the Center Control Cover).



4. Remove the keyboard (see Removing the Keyboard).



5. Remove the media controls board (see Removing the Media Controls Board).



6. Remove the palm rest (see Removing the Palm Rest).



7. Remove the media card reader board (see Removing the Media Card Reader Board).



8. Remove the optical drive (see Removing the Optical Drive).



9. Lift the latch to disconnect the USB board cable from the USB board cable connector on the system board.



10. Remove the screw that secures the USB board to the computer base.



11. Make note of the USB board cable routing and pry up the USB board cable.



12. Remove the USB board 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: 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.

USB board cable

USB board

screw

USB board cable connector

Replacing the USB Board  
 
1. Follow the procedures in Before You Begin.  
 
 
2. Align the hole on the USB board with the protrusion on the computer base.  
 
 
3. Replace the screw that secures the USB board to the computer base.  
 
 
4. Route the USB board cable and press down on the latch to connect the USB board cable to the USB board cable connector on the system board.  
 
 
5. Replace the optical drive (see Replacing the Optical Drive).  
 
 
6. Replace the media card reader board (see Replacing the Media Card Reader Board).  
 
 
7. Replace the palm rest (see Replacing the Palm Rest).  
 
 
8. Replace the media controls board (see Replacing the Media Controls Board).  
 
 
9. Replace the keyboard (see Replacing the Keyboard).  
 
 
10. Replace the center control cover (see Replacing the Center Control Cover).  
 
 
11. Replace the battery (see Replacing the Battery).  
 
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 

Dell 1745 Users Manual Studio 1745/1747 Service

Dell-Studio-1747-Service-Manual-112635 dell-studio-1747-service-manual-112635

Studio 1745 studio-1747_service manual_en-us

1745 to the manual 8b9a1a6e-8ecf-4962-852f-1a2e4a810bf9

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