Compaq XL240 Manuale operativo

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES REMOVAL SEQUENCE 1

Presario 1400 Series

Model XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340,

XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356

Removal Sequence

This section describes the removal and replacement process for the Presario 1400 Series Notebook.

The procedures are divided into two subsections: The Customer Removable Parts and The Service

Removable Parts. The first subsection explains which parts may be removed by the customer/owner,

and the second subsection explains which parts should be serviced by the technician.

The Customer Removable Parts

Serial Number

Report your Notebook’s serial number 1to Compaq when requesting information or ordering spare

parts. The serial number is located on the underside of the Notebook as shown below.

ÅWARNING: Prior to servicing your Notebook, disconnect AC power cords and

external devices, and remove the battery pack and any PC Cards. Failure to

disconnect electrical devices may cause damage to the Notebook and loss of

human life.

2 REMOVAL SEQUENCE PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES

Presario 1400 Series

Model XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340,

XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356

Electrostatic Discharge

A sudden discharge of static electricity from a finger or other conductor can destroy static-sensitive

devices or microcircuitry. Often the spark is neither felt nor heard, but damage occurs. An electronic

device that has been exposed to electrostatic discharge (ESD) may not seem to be affected and

work perfectly throughout a normal cycle. Although the Notebook may function normally for a period

of time, it may have been degraded in the internal layers, reducing the its life expectancy.

Networks built into many integrated circuits provide some protection, but in many cases the

discharge contains enough power to alter device parameters or melt silicon junctions.

Generating Static

The table below shows activities that generate static electricity and the associated level of

electrostatic voltage.

Typical Electrostatic Voltages

Event Relative Humidity

10% 40% 55%

Walking across carpet 35,000 V 15,000 V 7,500 V

Walking across vinyl floor 12,000 V 5,000 V 3,000 V

Motions of bench worker 6,000 V 800 V 400 V

Removing DIPS from plastic tubes 2,000 V 700 V 400 V

Removing DIPS from vinyl trays 11,500 V 4,000 V 2,000 V

Removing DIPS from Styrofoam 14,500 V 5,000 V 3,500 V

Removing bubble pack from PCBs 26,000 V 20,000 V 7,000 V

Packing PCBs in foam-lined box 21,000 V 11,000 V 5,000 V

Note: 700 volts can degrade a product.

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES REMOVAL SEQUENCE 3

Presario 1400 Series

Model XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340,

XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356

Service Considerations

During the disassembly and assembly of your Notebook, please keep in mind the considerations

listed below.

Tool and Software Requirements

Customer serviceable parts only require the following items during disassembly:

•Small standard screwdriver

•Small Phillips screwdriver

•Diagnostics software

Screws

The screws used on the customer removable parts are Phillips. These screws are not

interchangeable. If an incorrect screw is applied during the reassembly process, it can damage the

unit. Compaq strongly recommends that you keep all screws with their respective parts as they are

removed during disassembly. Then replace the screws in their proper locations.

Important: As each subassembly is removed from the Notebook, place it away from the

work area to prevent damage.

Note: Screws inside the Compaq Presario 1400 Series Portable Notebooks vary in size

and are not interchangeable. During reassembly care must be taken to return the

correct screws to their original location. Keep all screws with their respective

subassembly during removal.

4 REMOVAL SEQUENCE PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES

Presario 1400 Series

Model XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340,

XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356

Notebook Disassembly

Before beginning The Removal and Replacement Procedures, complete the following steps:

1. Disconnect AC power and any external devices.

2. Remove any PC cards.

3. Remove the battery pack (pg 5).

ÅÅ

ÅWARNING: Battery pack contains harmful components when exposed. Do not

open, crush, puncture, or incinerate the battery pack. It contains no field-

serviceable parts. Dispose of battery packs properly. Failure to dispose of battery

packs properly may cause harm to humans, animals, and their environment.

ÄÄ

ÄCAUTION: Metal objects can damage the battery pack as well as the battery

contacts in the battery compartment. To prevent damage, do not allow metal

objects to touch the battery contacts. Place only the battery pack for the Compaq

Presario 1400 Series Portable Notebooks into the battery compartment. Do not

force the battery pack into the bay if insertion does not occur easily. Do not open

a battery pack; opening causes damage to the pack, making it unuseable and

exposing harmful battery components.

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES REMOVAL SEQUENCE 5

Presario 1400 Series

Model XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340,

XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356

Battery Pack

To remove the battery pack, complete the following steps:

1. Slide the battery compartment door switch 1up to release the door.

2. Simultaneously slide door 2right.

3. Lift door to remove.

Important: The battery pack should be removed before performing any

internal maintenance on the Notebook.

ÅÅ

ÅWARNING: Battery pack contains harmful components when exposed. Do not

open, crush, puncture, or incinerate the battery pack. It contains no field-

serviceable parts. Dispose of battery packs properly. Failure to dispose of battery

packs properly may cause harm to humans, animals, and their environment.

ÄÄ

ÄCAUTION: Metal objects can damage the battery pack as well as the battery

contacts in the battery compartment. To prevent damage, do not allow metal

objects to touch the battery contacts. Place only the battery pack for the Compaq

Presario 1400 Series Portable Notebooks into the battery compartment. Do not

force the battery pack into the bay if insertion does not occur easily. Do not open

a battery pack; opening causes damage to the pack, making it unuseable and

exposing harmful battery components.

Continued

6 REMOVAL SEQUENCE PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES

Presario 1400 Series

Model XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340,

XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356

4. Pull up on battery pack ribbon.

5. Disconnect battery pack from connectors.

6. Lift battery pack from compartment.

To replace the battery pack, reverse these procedures.

ÅÅ

ÅWARNING: Battery pack contains harmful components when exposed. Do not

open, crush, puncture, or incinerate the battery pack. It contains no field-

serviceable parts. Dispose of battery packs properly. Failure to dispose of battery

packs properly may cause harm to humans, animals, and their environment.

ÄÄ

ÄCAUTION: Metal objects can damage the battery pack as well as the battery

contacts in the battery compartment. To prevent damage, do not allow metal

objects to touch the battery contacts. Place only the battery pack for the Compaq

Presario 1400 Series Portable Notebooks into the battery compartment. Do not

force the battery pack into the bay if insertion does not occur easily. Do not open

a battery pack; opening causes damage to the pack, making it unuseable and

exposing harmful battery components.

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES REMOVAL SEQUENCE 7

Presario 1400 Series

Model XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340,

XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356

Cosmetic Side Covers

To remove the Cosmetic Side Covers, complete the following steps:

1. Prepare the Notebook for disassembly (pg 4).

2. Remove one screw located on the side near the back of the unit with a Phillips screwdriver

from the cosmetic side cover, left or right.

3. Slide or shift the cosmetic side cover backward to remove it from the Notebook.

4. Repeat this procedure for the other cosmetic side cover.

Note: To determine left and right sides of the Notebook, as referenced in this guide, face

the front of the unit toward you. As referenced in this guide, your left will be the same as

the Notebook’s left side, and your right will be the same as the Notebook’s right side.

To replace the Cosmetic Side Covers, reverse the procedure.

8 REMOVAL SEQUENCE PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES

Presario 1400 Series

Model XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340,

XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356

Speaker Port Covers

To remove the Speaker Port Covers, complete the following steps:

1. Prepare the Notebook for disassembly (pg 4).

2. Remove the cosmetic side covers (pg 7).

3. Remove the upper and lower Speaker Port Covers from chassis.

To replace the Speaker Port Covers, reverse these procedures.

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES REMOVAL SEQUENCE 9

Presario 1400 Series

Model XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340,

XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356

Modem/Memory Access Door

To remove the Modem/Memory Access Door, complete the following steps:

1. Prepare the Notebook for disassembly (pg 4).

2. Turn the Notebook upside down.

3. Remove the one screw 1with Phillips screwdriver from the Modem/

Memory Access Door 2.

4. Lift up and remove the Modem/Memory Access Door from the unit.

Note: The illustration may show extra components removed that are

not necessary for this step. Complete only the written steps that are

provided.

To replace the Modem/Memory Access Door, reverse these procedures.

10 REMOVAL SEQUENCE PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES

Presario 1400 Series

Model XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340,

XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356

Modem or Network/Modem Combo Card

To remove the Modem, complete the following steps:

1. Prepare the Notebook for disassembly (pg 4).

2. Turn the Notebook over.

3. Remove the Modem/Memory Access door from the unit (pg 9).

4. Pull the tab 1on each side of the Modem or Network/Modem Card.

5. Lift and remove the card 2from the chassis.

To replace the Modem, reverse these procedures.

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