Compaq XL240 Operating manual

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).
Å
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.
Ä
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.
Å
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.
Ä
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.
Å
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.
Ä
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.

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES REMOVAL SEQUENCE 11
Presario 1400 Series
Model XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340,
XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356
Extended Memory Card
To remove the Extended Memory Card, complete the following steps:
1. Prepare the Notebook for disassembly (pg 4).
2. Turn the Notebook upside down.
3. Remove the Modem/Memory Access door (pg 9).
4. Pull the tab 1on each side of the Extended Memory Card.
5. Lift and remove the Extended Memory Card 2from the connectors.
To replace the Extended Memory Card, reverse these procedures.

12 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
DVD, CD-Rom, or CD-RW Drive
To remove the DVD, CD-Rom, or CD-RW Drive, complete the following steps:
1. Prepare the Notebook for disassembly (pg 4).
2. Remove the right cosmetic side cover (pg 7).
Note: It is not necessary to remove the left cosmetic side cover to remove the
DVD, CD-Rom, or CD-RW Drive.
3. Turn the Notebook upside down.
4. Remove two screws from underneath the unit on the left side.
Note: The illustration may show extra components removed that are
not necessary for this step. Complete only the written steps that are
provided.
Continued

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES REMOVAL SEQUENCE 13
Presario 1400 Series
Model XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340,
XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356
5. Turn the Notebook over.
6. Slide the DVD, CD-Rom, or CD-RW Drive out to remove.
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 DVD, CD-Rom, or CD-RW Drive, reverse these procedures.

14 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
Hard Drive
To remove the Hard Drive, complete the following steps:
1. Prepare the Notebook for disassembly (pg 4).
2. Remove the left cosmetic side cover (pg 7).
Note: It is not necessary to remove the right cosmetic side cover to remove the Hard
Drive.
3. Turn the Notebook upside down.
4. Remove one screw from underneath the unit.
Continued

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES REMOVAL SEQUENCE 15
Presario 1400 Series
Model XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340,
XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356
5. Turn the unit over.
6. Slide the Hard Drive out and remove.
To replace the Hard Drive, reverse the procedure.

16 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
The Service Removable Parts
Serial Number
When customers request information or order spare parts, be sure to ask them for their Notebook’s
serial number 1. It is located on the underside of the unit.
Before servicing the unit, refer to Preparing the Notebook for Disassembly (pg 4).
ÅWARNING: Before servicing the 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.

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES REMOVAL SEQUENCE 17
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 it may function normally for a period of time, it
may have been degraded in the internal layers, reducing 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 their 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.

18 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
Service Considerations
During the disassembly and assembly of the Notebook, please keep in mind the considerations listed
below.
Tool and Software Requirements
To service the Notebook, the following items are required:
•Torx T-8 or T-9 screwdriver
•5mm nut drivers (for screwlocks and standoffs)
•Small standard screwdriver
•Small Phillips screwdriver
•Diagnostics software
Screws
The 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.
As each subassembly is removed from the Notebook, place it away from the work area to prevent
damage.

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES REMOVAL SEQUENCE 19
Presario 1400 Series
Model XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340,
XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356
Cables and Connectors
Most of the cables inside the Notebook are ribbon cables. Handle cables with extreme care to avoid
damage. During insertion or removal from the connector, apply only the amount of pressure
required to seat or unseat the cable, handling it by the connector whenever possible. In all cases,
avoid bending, twisting, or tearing the cables. Route cables in such a way that they cannot be
caught or snagged by parts being removed or replaced.
Cables
To avoid damage to the cable or the Notebook, the following precautions should be taken when
handling cables:
•Always handle cables by their connectors.
•Avoid bending, twisting, or pulling on the cables.
•Apply minimum required force when seating or unseating the cables from their connectors.
•Place the cables in such a manner that they cannot be caught or snagged by parts being
removed or replaced.
•Handle flex cables with extreme care; they can tear easily.
Ä
ÄÄ
Ä
CAUTION: When servicing Notebooks, place cables in their proper location during
the reassembly process. Improper cable placement can cause severe damage to
the Notebook.
Cable Illustrations
The following illustrations show the proper placement for each cable:
•Zif Cable
•Speaker Assembly Cable
•Keyboard Ribbon Cable
•NIC Cable

20 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
Connectors and Plastic Parts
Plastic parts can be damaged by the use of excessive force during disassembly and reassembly.
Handle with care when disassembling and assembling plastic parts. As recommended in the
maintenance instructions, apply pressure only at the designated points.
ZIF Connectors
The Notebook uses zero insertion force (ZIF) connectors on the system board.
Ä
ÄÄ
Ä
CAUTION: A ZIF connector and its attached cable can be easily damaged. Handle
only the connector slide when removing or replacing a cable. Never pull or twist on
a cable while it is connected.
To remove a cable from a ZIF connector, lift both corners of the ZIF connector and slide
simultaneously with constant light pressure.
Ä
ÄÄ
Ä
CAUTION: When servicing a Notebook, place cables in their proper location during
the reassembly process. Improper cable placement can cause severe damage to
the Notebook.
To view other cables, click Cable Illustrations.