HP SM 1800, XL180, XL192 Maintenance and Service Guide ch7removal
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Presario 1800 Series
Models: XL180, XL181, XL182, XL183, XL185,
and XL190, XL191, XL192
Removal and Replacement
This chapter details removing and replacing each component of the Presario 1800XL
Notebook Computers.
Electrostatic Discharge
When removing or replacing parts, be careful to discharge static electricity before touching
the Notebook’s internal components. A sudden discharge of static electricity from a finger
or other conductor can destroy static-sensitive devices and microcircuitry. Often the spark
is neither felt nor heard, but damage occurs. An electronic device exposed to an
electrostatic discharge may not seem affected and work perfectly throughout a normal
cycle. However, the discharge degrades internal layers, which reduces the operating life of
the device. 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.
The table below shows the amount of static electricity generated by common activities
associated with servicing computers.
Generated Electrostatic Voltage
Activity
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
CAUTION: As little as 700 Volts can degrade Notebook components. Be sure to
ground yourself before touching the Notebook or its subassemblies.
Ä
Relative Humidity
10% 40% 50%
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RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
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Presario 1800 Series
Models: XL180, XL181, XL182, XL183, XL185,
and XL190, XL191, XL192
Tool and Software Requirements
The following items are required to service the Notebook:
• Torx T-8 screwdriver
• 5mm nut drivers (for screwlocks and standoffs)
• Small standard screwdriver
• Small Phillips screwdriver
• Diagnostics software
Screws
The screws used in the Notebook are not interchangeable. If an incorrect screw is used
during the reassembly process, it can damage the unit. Compaq strongly recommends that
all screws removed during disassembly be kept with the part that was removed, then
returned to their proper locations.f
Connectors and Plastic Parts
Plastic parts can be damaged by the use of excessive force during disassembly and
reassembly. When handling plastic parts, use care. Apply pressure only at the points
designated in the instructions.
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RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
1800 S
ERIES
Presario 1800 Series
Models: XL180, XL181, XL182, XL183, XL185,
and XL190, XL191, XL192
ZIF Connector
The 1800XL Series Notebooks use zero insertion force (ZIF) connectors on the system
board.
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
Ä
the cable while it is connected.
To remove a cable from a ZIF connector, lift both corners of the ZIF connector and slide the
cable out simultaneously with constant light force.
CAUTION: When servicing this Notebook, ensure that cables are placed in their
proper location during the reassembly process. Improper cable placement can
Ä
damage the Notebook.
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RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
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Presario 1800 Series
Models: XL180, XL181, XL182, XL183, XL185,
and XL190, XL191, XL192
Cables
Most cables used throughout the unit are ribbon cables.
Cables must be handled with extreme care to avoid damage. Use the following precautions
when handling cables to avoid damage to the cable and Notebook:
• Always handle cables by their connectors.
• In all cases, avoid bending, twisting, pulling, or tearing cables.
• Apply only the minimum force required to seat or unseat cables from their
connectors.
• Ensure that cables are routed 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.
CAUTION: When servicing these Notebooks, ensure that cables are placed in their
proper location during the reassembly process. Improper cable placement can
Ä
cause severe damage to the unit.
The following illustrations show the proper placement for each cable:
Hard Drive Ribbon Cable
•
•
CD/DVD Ribbon Cable
•
Diskette Drive Ribbon Cable
•
Speaker Assembly Cable
•
Keyboard Ribbon Cable
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RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
1800 S
ERIES
Presario 1800 Series
Models: XL180, XL181, XL182, XL183, XL185,
and XL190, XL191, XL192
Hard Drive Ribbon Cable
The position for the hard drive ribbon cable is shown below.
CAUTION: When servicing the Notebook, ensure that cables are placed in their
proper location during the reassembly process. Improper cable placement can
Ä
damage the Notebook.
Removing the Hard Drive
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RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
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Presario 1800 Series
Models: XL180, XL181, XL182, XL183, XL185,
and XL190, XL191, XL192
CD/DVD Ribbon Cable
The ribbon cable position for the CD or DVD drive is shown below.
CAUTION: When servicing the Notebook, ensure that cables are placed in their
proper location during the reassembly process. Improper cable placement can
Ä
damage the Notebook.
Removing the CD/DVD Drive
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RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
1800 S
ERIES
Presario 1800 Series
Models: XL180, XL181, XL182, XL183, XL185,
and XL190, XL191, XL192
Diskette Drive Ribbon Cable
The ribbon cable position for the diskette drive is shown below.
CAUTION: When servicing the Notebook, ensure that cables are placed in their
proper location during the reassembly process. Improper cable placement can
Ä
damage the Notebook.
Removing the Diskette Drive
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RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
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Presario 1800 Series
Models: XL180, XL181, XL182, XL183, XL185,
and XL190, XL191, XL192
Speaker Assembly Cable
The cable position for the speaker assembly is shown below. The cable is routed under the
battery charger (voltage converter) board and under the edge of the system board.
CAUTION: When servicing the Notebook, ensure that cables are placed in their
proper location during the reassembly process. Improper cable placement can
Ä
damage the Notebook.
Removing the Speaker Assembly
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RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
1800 S
ERIES
Presario 1800 Series
Models: XL180, XL181, XL182, XL183, XL185,
and XL190, XL191, XL192
Modem Cable
The cable position for the modem is shown below.
CAUTION: When servicing the Notebook, ensure that cables are placed in their
proper location during the reassembly process. Improper cable placement can
Ä
damage the Notebook.
Removing the Modem
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RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
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Presario 1800 Series
Models: XL180, XL181, XL182, XL183, XL185,
and XL190, XL191, XL192
Keyboard Ribbon Cable
The ribbon cable position for the keyboard is shown below.
CAUTION: When servicing this Notebook, ensure that cables are placed in their
proper location during the reassembly process. Improper cable placement can
Ä
damage the Notebook.
Removing the Keyboard
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RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
1800 S
ERIES
Presario 1800 Series
Models: XL180, XL181, XL182, XL183, XL185,
and XL190, XL191, XL192
Preparing the Notebook for Disassembly
Before beginning the removal or replacement of any Notebook components, complete the
following steps:
1. Disconnect the AC power source and any external devices.
2. Remove the QuikDock (pg 12
).
3. Remove any PC Cards.
4. Remove the battery pack (pg 13
Important: The battery pack should be removed before performing any internal
maintenance on the Notebook.
WARNING: Metal objects can damage the battery pack as well as the battery
contacts in the battery compartment. To prevent damage, do not allow metal
Å
objects to touch the battery contacts. Place only the battery pack for the Compaq
Presario 1800XL Series Portable Notebooks into the battery compartment. Do not
force the battery pack into the bay if insertion is difficult.
CAUTION: Do not crush, puncture, or incinerate the battery pack. Do not open a
battery pack; this action damages the pack, makes it unusable, and exposes
Ä
potentially harmful battery components. No field-serviceable parts are located
inside the battery pack.
Note: Compaq Presario 1800XL Series Portable Notebooks have several screws of
various sizes that are not interchangeable. Care must be taken during reassembly
to ensure that the correct screws are used in their correct location. During removal
keep screws with their respective subassembly.
).
Important: As each component is removed from the Notebook, place the
components and its assosiated screws away from the work area to prevent
damage.
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RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
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Presario 1800 Series
Models: XL180, XL181, XL182, XL183, XL185,
and XL190, XL191, XL192
Disconnecting the QuikDock
To disconnect the Notebook from the QuikDock, complete the following steps:
1
1. Lift up the handle
2. Lift the Notebook
on top of the QuikDock.
2
straight up.
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RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
1800 S
ERIES
Presario 1800 Series
Models: XL180, XL181, XL182, XL183, XL185,
and XL190, XL191, XL192
Removing the Battery
To remove the battery pack, complete the following steps:
1
1. Slide the battery compartment door down
2
2. Pull the battery
from the chassis by the tab located on the end of the battery pack.
and remove it from the chassis.
To replace the battery, reverse these procedures.
Important: The battery pack should be removed before performing any internal
maintenance on the Notebook.
WARNING: Metal objects can damage the battery pack as well as the battery
contacts in the battery compartment. To prevent damage, do not allow metal
Å
objects to touch the battery contacts. Place only the battery pack for Compaq
Presario 1800XL Series Portable Notebooks in the battery compartment. Do not
force the battery pack into the bay if insertion does not occur easily.
CAUTION: Do not crush, puncture, or incinerate the battery pack. Do not open a
battery pack; this action damages the pack, makes it unusable, and exposes
Ä
potentially harmful battery components. No field-serviceable parts are located
inside the battery pack.
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RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
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Presario 1800 Series
Models: XL180, XL181, XL182, XL183, XL185,
and XL190, XL191, XL192
Removing the Palmrest Cover with TouchPad
Note: It is not necessary to remove the display panel assembly to access the interior
components of the Notebook.
To remove the Palmrest cover with TouchPad, complete the following steps:
1. Prepare the Notebook for disassembly (pg 11
).
2. Close the display and turn the Notebook upside down.
3. Remove five screws from the underside of the Notebook.
Continued on the next page.
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RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
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