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Before You Begin: Dell Inspiron 9400 Service Manual

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Before You Begin

Dell™ Inspiron™ 9400 Service Manual

  Recommended Tools

  Turning Off Your Computer

  Before Working Inside Your Computer

  Computer Orientation

  Screw Identification


This section provides procedures for removing and installing the components in your computer. Unless otherwise noted, each procedure assumes that the following conditions exist:


Recommended Tools

The procedures in this document may require the following tools:

  • Small flat-blade screwdriver

  • Phillips screwdriver

  • Small plastic scribe

  • Flash BIOS update program CD


Turning Off Your Computer

NOTICE: To avoid losing data, save and close any open files and exit any open programs before you turn off your computer.
  1. Shut down the operating system:

Save and close any open files, exit any open programs, and click Start® Shut Down® Shut down.

The computer turns off after the operating system shutdown process finishes.

  1. Ensure that the computer and any attached devices are turned off. If your computer and attached devices did not automatically turn off when you shut down your operating system, press and hold the power button for 4 seconds.


Before Working Inside Your Computer

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

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
NOTICE: 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.
NOTICE: 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.
NOTICE: When you disconnect a cable, pull on its connector or on its strain-relief loop, not on the cable itself. Some cables have a connector 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.
NOTICE: To help prevent damage to the computer, perform the following steps before you begin working inside the computer.
  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).

NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network device.
  1. Disconnect any telephone or network cables from the computer.

  2. Disconnect your computer and all attached devices from their electrical outlets.

  3. Close the display and turn the computer upside down on a flat work surface.

NOTICE: To help prevent damage to the system board, remove the main battery before working inside the computer.
  1. Slide the battery-bay latch release on the bottom of the computer and remove the battery from the bay.

  2. Turn the computer top-side up.

1

battery-bay latch release

2

battery


Computer Orientation

1

front

2

left

3

back

4

right

 

 

 

 


Screw Identification

When you are removing and replacing components, print the screw identification chart as a tool to lay out and keep track of the screws. The chart provides the number of screws and their sizes.

Optical Drive:

(1 each)

Hard Drive:

(2 each)

Modem:

(1 each)

Internal Card With Bluetooth® Wireless Technology:

(1 each)

 

Keyboard:

(2 each)

 

Display Assembly:

(4 each)

 

Display Bezel:

(4 each, under rubber display bumpers)

(4 each, shoulder type, under 2 screw covers and 2 rubber bumpers)

 

Display Panel:

(8 each)

 

Palm Rest:

(6 each – top side)

(12 each – bottom side)

 

Speakers:

(4 total — 2 per speaker)

 

USB Port Board:

(1 each)

 

Fans (2):

(4 total — 2 per fan)

 

System Board:

(4 each)

 

Hard Drive Bay:

(4 each)

 

ExpressCard Cage:

(4 each)

 

Battery Latch Assembly:

(1 each)


   



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