Dell 7746 Manuel de service

Inspiron 177000 Series Service ManualComputer model: Inspiron 7746Regulatory model: P24ERegulatory type: P24E002book.book Page 1 Wednesday, November

10 | Removing the BatteryRemoving the Battery WARNING: Before working inside your computer, read the safety information that shipped with your com

Removing the Battery | 115 Remove the screws that secure the battery to the computer base.6 Using the pull tab, lift the battery out of the comp

12 | Replacing the BatteryReplacing the Battery WARNING: Before working inside your computer, read the safety information that shipped with your c

Removing the Memory Module(s) | 13Removing the Memory Module(s) WARNING: Before working inside your computer, read the safety information that shi

14 | Removing the Memory Module(s)2 Carefully spread apart the securing clips on each end of the memory-module slot until the memory module pops up.

Replacing the Memory Module(s) | 15Replacing the Memory Module(s) WARNING: Before working inside your computer, read the safety information th

16 | Removing the Optical DriveRemoving the Optical Drive WARNING: Before working inside your computer, read the safety information that shipped w

Removing the Optical Drive | 172 Remove the screw that secures the optical-drive assembly to the computer base.3 Using a plastic scribe, push th

18 | Replacing the Optical DriveReplacing the Optical Drive WARNING: Before working inside your computer, read the safety information that shipped

Removing the Hard Drive | 19Removing the Hard Drive WARNING: Before working inside your computer, read the safety information that shipped wit

Notes, Cautions, and Warnings NOTE: A NOTE indicates important information that helps you make better use of your computer. CAUTION: A CAUTION indic

20 | Removing the Hard Drive4 Remove the screws that secure the hard-drive cage to the hard drive assembly.5 Using the pull-tab, lift the hard-drive

Replacing the Hard Drive | 21Replacing the Hard Drive WARNING: Before working inside your computer, read the safety information that shipped w

22 | Removing the KeyboardRemoving the Keyboard WARNING: Before working inside your computer, read the safety information that shipped with your c

Removing the Keyboard | 233 Using a plastic scribe, gently release the keyboard from the tabs on the palm-rest assembly.1 tabs (5) 2 plastic scribe3

24 | Removing the Keyboard4 Carefully turn the keyboard over and place it on the palm rest.5 Lift the latch and disconnect the keyboard cable from t

Replacing the Keyboard | 25Replacing the Keyboard WARNING: Before working inside your computer, read the safety information that shipped with your

26 | Removing the Base CoverRemoving the Base Cover WARNING: Before working inside your computer, read the safety information that shipped with yo

Removing the Base Cover | 27Procedure1 Remove the screws that secure the base cover to the computer base2 Close the display and turn the computer ov

28 | Removing the Base Cover3 Remove the screws that secure the base cover to the computer base.4 Pry the base cover away from the computer base.1 s

Replacing the Base Cover | 29Replacing the Base Cover WARNING: Before working inside your computer, read the safety information that shipped with

Contents | 3ContentsBefore Working Inside Your Computer . . . . . . . . . 7Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . .

30 | Removing the Coin-Cell BatteryRemoving the Coin-Cell Battery WARNING: Before working inside your computer, read the safety information that s

Replacing the Coin-Cell Battery | 31Replacing the Coin-Cell Battery WARNING: Before working inside your computer, read the safety information

32 | Removing the Wireless CardRemoving the Wireless Card WARNING: Before working inside your computer, read the safety information that shipped w

Removing the Wireless Card | 333 Slide and remove the wireless card from the mini-card connector.1 antenna cables (2) 2 wireless mini-card 3 w

34 | Replacing the Wireless CardReplacing the Wireless Card WARNING: Before working inside your computer, read the safety information that shipped

Removing the Cooling Assembly | 35Removing the Cooling Assembly WARNING: Before working inside your computer, read the safety information that

36 | Removing the Cooling Assembly3 Disconnect the fan cable from the system board.4 In sequential order, (indicated on the cooling assembly), loose

Replacing the Cooling Assembly | 37Replacing the Cooling Assembly WARNING: Before working inside your computer, read the safety information that s

38 | Removing the USB BoardRemoving the USB Board WARNING: Before working inside your computer, read the safety information that shipped with your

Removing the USB Board | 393 Lift the connector latch and disconnect the USB-board cable from the USB board.4 Lift the USB board off the compute

4 | ContentsRemoving the Keyboard . . . . . . . . . . . . . . . . . . . . 22Prerequisites. . . . . . . . . . . . . . . . . . . . . . . . . . . .

40 | Replacing the USB BoardReplacing the USB Board WARNING: Before working inside your computer, read the safety information that shipped with yo

Removing the Speakers | 41Removing the Speakers WARNING: Before working inside your computer, read the safety information that shipped with yo

42 | Removing the Speakers3 Disconnect the speaker cable from the system board.4 Peel off the tape that secures the speaker cable to the system boar

Replacing the Speakers | 43Replacing the Speakers WARNING: Before working inside your computer, read the safety information that shipped with your

44 | Removing the System BoardRemoving the System Board WARNING: Before working inside your computer, read the safety information that shipped wit

Removing the System Board | 45Procedure CAUTION: Place the laptop on a clean and soft surface to prevent damage to the bottom part of the lapto

46 | Removing the System Board5 Turn the computer over.6 Lift the connector latch and, using the pull-tab, disconnect the USB-board cable from the s

Removing the System Board | 4713 Lift the system-board off the computer base.1 screw 2 system-board 12book.book Page 47 Wednesday, November 26, 2

48 | Replacing the System BoardReplacing the System Board WARNING: Before working inside your computer, read the safety information that shipped w

Replacing the System Board | 49Postrequisites1 Replace the cooling assembly. See "Replacing the Cooling Assembly" on page 37.2 Replace the

Contents | 5Removing the USB Board . . . . . . . . . . . . . . . . . . . 38Prerequisites. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

50 | Removing the Display AssemblyRemoving the Display Assembly WARNING: Before working inside your computer, read the safety information that

Removing the Display Assembly | 513 Place the computer on the edge of the table with the palm rest on the table so that the display assembly ext

52 | Removing the Display Assembly5 Lift the palm-rest away from the display assembly.1 display assembly1book.book Page 52 Wednesday, November 26,

Replacing the Display Assembly | 53Replacing the Display Assembly WARNING: Before working inside your computer, read the safety information that s

54 | Removing the Power-Adapter PortRemoving the Power-Adapter Port WARNING: Before working inside your computer, read the safety information that

Removing the Power-Adapter Port | 55Procedure1 Release the power-adapter port cable from the routing guides on the computer base.2 Remove the sc

56 | Replacing the Power-Adapter PortReplacing the Power-Adapter Port WARNING: Before working inside your computer, read the safety information th

Removing the Palm Rest | 57Removing the Palm Rest WARNING: Before working inside your computer, read the safety information that shipped with

58 | Removing the Palm RestProcedure 1 Note the hard-drive cable routing and remove the hard-drive cable from the routing guides along the palm

Replacing the Palm Rest | 59Replacing the Palm Rest WARNING: Before working inside your computer, read the safety information that shipped wit

6 | ContentsRemoving the Palm Rest . . . . . . . . . . . . . . . . . . . . 57Prerequisites. . . . . . . . . . . . . . . . . . . . . . . . . . . .

60 | Flashing the BIOSFlashing the BIOSYou may need to flash (update) the BIOS when an update is available or when you replace the system board. To

Getting Help and Contacting Dell | 61Getting Help and Contacting DellSelf-Help ResourcesYou can get information and help on Dell products and se

Before Working Inside Your Computer | 7Before Working Inside Your Computer CAUTION: To avoid damaging the components and cards, handle them by

8 | Before Working Inside Your ComputerSafety InstructionsUse the following safety guidelines to protect your computer from potential damage and

After Working Inside Your Computer | 9After Working Inside Your Computer CAUTION: Leaving stray or loose screws inside your computer may severe