Dell Inspiron 7500 Guida utente

Dell™Inspiron™7500SystemReference

Information in this document is subject to change without notice.

Reproduction in any manner whatsoever without the written permission of Dell Computer Corporation is strictly forbidden. Trademarks used in this text: Dell, the DELL logo,

MegaBay, and Inspiron are trademarks of Dell Computer Corporation; Microsoft, Windows, MS-DOS, and WindowsNT are registered trademarks of Microsoft Corporation;

Intel and Pentium are registered trademarks, and Celeron is a trademark of Intel Corporation; Adobe is a trademark of Adobe Systems Incorporated, which may be registered

in certain jurisdictions.

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 Computer Corporation

disclaims any proprietary interest in trademarks and trade names other than its own.

Initial release: 20 Sep 1999

Last revised: 17 Aug 2000

Conventions

Technical Overview

Using the Computer

Utilities and Drivers for Windows 98

Utilities and Drivers for Windows NT

Technical Specifications

Setup Program

System Codes and Messages

Passwords and Security

Ports and Connectors

Power Sources

Power Conservation

Removing and Replacing Parts

Documentation

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13.3-InchLCDBracketsandCarrierTrayRemoval:Dell™Inspiron™7500

This procedure assumes that you have removed the front bezel and the 13.3-inch LCD panel. To remove the brackets from the LCD panel, follow

these steps:

1. Detach the LCD wire harness from connector CN1 on the top left side of the inverter board.

2. Remove the (4) 6-mm screws from the sides of the mounting brackets.

3. Remove the brackets from the LCD panel.

To remove the 13.3-inch LCD panel from the carrier tray, follow these steps:

1. Remove any Kapton tape covering the CCFL cable.

2. Gently pull the cable out of its connector.

3. Remove any Kapton tape from the LCD wire harness.

4. Disconnect the LCD wire harness from the LCD panel.

5. Lift the LCD panel out of carrier tray.

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NOTICE: The metal on the carrier tray is sharp. Be careful not to cut yourself.

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13.3-InchLCDPanelRemoval:Dell™Inspiron™7500

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This procedure assumes that you have removed the front bezel. Follow these steps to remove the 13.3-inch LCD panel:

1. Remove the (8) 6-mm screws that secure the left and right LCD brackets to the front plastic cover.

2. Detach the LCD wire harness from connector CN2 on the right side of inverter board.

3. If present, carefully remove the grounding tape between the inverter board and LCD panel.

4. Loosen the 3-mm screw securing the inverter board.

5. Lift the LCD panel, LCD brackets, and carrier tray, as a unit, out of the back cover.

Rotate upward from the bottom of the panel because the top slides underneath the plastic hooks.

6. Remove the hinges, which were previously held in place by pressure and screws.

To remove the inverter board, follow these steps:

1. Remove the 3-mm screw securing the inverter board to the back cover.

2. If you have not removed the LCD panel, disconnect the LCD wire harness from connectors CN1 and CN2 on the inverter board.

3. Remove the inverter board from the back cover.

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14.1-InchLCDPanel,Brackets,andCarrierTrayRemoval:Dell™Inspiron™7500

This procedure assumes that you have removed the front bezel. Follow these steps to remove the 14.1-inch LCD panel:

1. Remove the (8) 6-mm screws that secure the left and right LCD brackets to the front plastic cover.

2. Detach the CCFL cable from connector CN2 on the right side of inverter board.

3. Carefully remove the grounding tape between the inverter board and LCD panel.

4. Remove the 3-mm screw securing the inverter board, and unsnap the inverter board from the back cover.

5. Lift the LCD panel, LCD brackets, and inverter board as one unit out of the back cover.

Rotate upward from the bottom of the panel because the top slides underneath the plastic hooks.

6. Remove the hinges, which were previously held in place by pressure and screws.

To remove the LCD brackets from the LCD panel, follow these steps:

1. Remove the (4) 4-mm screws from the sides of the LCD brackets.

2. Remove the brackets from the LCD panel.

To remove the LCD panel from the carrier tray, follow these steps:

1. Lift the inverter board shield, pull it slightly away from the panel to expose the cabling, and detach the LCD wire harness from connector CN1 on the inverter

board.

2. Remove any Kapton tape covering the CCFL cable on the back of the LCD.

3. Gently pull the interposer board off the connector to the LCD panel.

4. Lift the LCD panel up and remove any tape between the LCD wire harness and the carrier tray.

5. Disconnect the LCD wire harness from the LCD panel.

6. Lift the LCD panel out of the carrier tray.

7. Disconnect the LCD wire harness from the LCD panel.

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NOTICE: The metal on the carrier tray is sharp. Be careful not to cut yourself.

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15-inchLCDPanelRemoval:Dell™Inspiron™7500

To remove the 15-inch LCD panel, perform the following steps:

1. Turn the computer over and remove the 4 screws from the bottom of the computer.

2. Turn the computer back over and open the display.

3. Remove the plastic hinge covers.

4. Insert a small flat-blade screwdriver or a similar plastic tool along the top-right edge of the keyboard, above the row of function keys. Working

from right to left, free the keyboard by prying it toward the front of the unit. When free, lift the top of the keyboard slightly to clear the palmrest

assembly.

5. Remove the keyboard bracket (located in the upper-right corner of the keyboard).

6. Remove the four screws that secure the two hinges.

7. Unplug the LCD wire harness and lift the assembly off the computer base.

To remove the front bezel, follow these steps:

1. Remove the two rubber screw covers and screws on the LCD near the hinge. Remove the remaining three plastic screw covers and screws,

one on either side and one in the front.

2. With all screws removed, unsnap the front bezel from the back cover and remove the bezel from the assembly.

To remove the LCD panel, hinges, and inverter board, follow these steps:

1. Remove the 4 remaining screw covers and screws on the sides of the LCD.

2. With all screws removed, lift the LCD panel out and disconnect the CCFL wire from the inverter board.

3. Detach the LCD wire harness from connector CN2 on the right side of the inverter board.

4. Carefully remove the grounding tape between the inverter board and the LCD panel.

5. Remove the two 2.5-mm screws securing the inverter board to the back cover.

6. Remove the inverter board from the back cover.

To reassemble, perform the steps in reverse order.

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ACAdapter:Dell™Inspiron™7500

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AudioJacks:Dell™Inspiron™7500

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AudioDevices:Dell™Inspiron™7500

You can connect speakers, a microphone, headphones, and record/playback devices such as cassette players, CD players, and VCRs to the

audio connectors on the computer. The connectors are located directly under the PC Card slot. Dell recommends using amplified speakers for the

best sound.

Connect headphones or speakers to the headphone connector on the right of the audio connectors. Connect a microphone to the microphone-in

connector in the middle. Connect record/playback devices such as cassette players, CD players, and VCRs to the line-in connector on the left.

See your Microsoft®Windows®98 documentation for the location of sound application programs such as mixers and volume control.

You can control the sound coming from the external speakers and the computer's integrated speakers with the volume control dial. You can also

use the keyboard to adjust the volumes. Press to lower the volume. Press to increase the volume. Press to enable or

disable both the integrated and external speakers.

See Drivers for information about reinstalling the audio drivers. The drivers are located on the Dell Inspiron 7500 System Software CD.

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NOTE: If no sound comes from the speakers, make sure that the sound is not disabled. Press and check the volume

control dial.

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AudioCardandAudioThermalShieldRemoval:Dell™Inspiron™7500

****New artwork pending

This procedure assumes that you have removed the system board from the plastic case and have removed the PC Card cage from the system

board. To remove the audio card and audio thermal shield, follow these steps:

1. Gently pull the audio card off of connectors JP12 and JP13 on the system board. Do not rock the card to remove it, because this may

damage the connectors.

2. Remove the 10-mm screw securing the audio thermal shield, and then remove the shield.

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ComponentLocations(BackView):Dell™Inspiron™7500

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