Compaq Presario 1200XL series User manual

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIES REMOVAL SEQUENCE 1
Presario 1200XL Series
Model XL300, XL300A, and XL300B
Removal Sequence
This chapter provides details for removing and replacing each component of the Presario
1200XL units.
Electrostatic Discharge
When removing or replacing parts, be careful to discharge static electricity before touching
the internal Notebook 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 to be affected and continue to 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.
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CAUTION: As little as 700 Volts can degrade Notebook components. Be sure to
ground yourself before touching the Notebook or its subassemblies.
Electrostatic Voltage
Event Relative Humidity
10% 40% 50%
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
Motion 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

2 REMOVAL SEQUENCE PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIES
Presario 1200XL Series
Model XL300, XL300A, and XL300B
Tool and Software Requirements
The following items are required to service the Notebook:
•Torx T-9 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.
Important: As each subassembly is removed from the Notebook, place it away from the
work area to prevent damage.
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. Most of the connectors in these Notebooks are
ZIF Connectors.

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIES REMOVAL SEQUENCE 3
Presario 1200XL Series
Model XL300, XL300A, and XL300B
ZIF Connector
The 1200XL Series Notebooks use zero insertion force (ZIF) connectors on the system
board.
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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
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 pressure.
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CAUTION: When servicing this Notebook, ensure that cables are placed in their
proper location during the reassembly process. Improper cable placement can
damage the Notebook.

4 REMOVAL SEQUENCE PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIES
Presario 1200XL Series
Model XL300, XL300A, and XL300B
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 the Notebook:
•Always handle cables by their connectors.
•In all cases avoid bending, twisting, pulling, or tearing cables.
•Apply only the minimum pressure required to seat or unseat cables from their
connectors.
•Place the cables so that they are not caught or snagged by parts being removed or
replaced.
•Handle flex cables with extreme care; they can tear easily.
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CAUTION: When servicing these Notebooks, ensure that cables are placed in their
proper location during the reassembly process. Improper cable placement can
cause severe damage to the unit.
The following illustrations show the proper placement for each cable:
•Diskette Drive Ribbon Cable •Keyboard Ribbon Cable
•Speaker Assembly Cable •Hard Drive Ribbon Cable

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIES REMOVAL SEQUENCE 5
Presario 1200XL Series
Model XL300, XL300A, and XL300B
Diskette Drive Ribbon Cable
The ribbon cable position for the diskette drive is shown below.
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CAUTION: When servicing this Notebook, ensure that cables are placed in their
proper location during the reassembly process. Improper cable placement can
damage the Notebook.

6 REMOVAL SEQUENCE PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIES
Presario 1200XL Series
Model XL300, XL300A, and XL300B
Speaker Assembly Cable
The cable position for the speaker assembly is shown below. The cable is routed under the
battery charger board and under the edge of the system board.
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CAUTION: When servicing this Notebook, ensure that cables are placed in their
proper location during the reassembly process. Improper cable placement can
damage the Notebook.

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIES REMOVAL SEQUENCE 7
Presario 1200XL Series
Model XL300, XL300A, and XL300B
Keyboard Ribbon Cable
The ribbon cable position for the keyboard is shown below.
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CAUTION: When servicing this Notebook, ensure that cables are placed in their
proper location during the reassembly process. Improper cable placement can
damage the Notebook.

8 REMOVAL SEQUENCE PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIES
Presario 1200XL Series
Model XL300, XL300A, and XL300B
Hard Drive Ribbon Cable
The ribbon cable position for the hard drive is shown below.
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CAUTION: When servicing the Notebook, ensure that cables are placed in their
proper location during the reassembly process. Improper cable placement can
damage the Notebook.
Note:

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIES REMOVAL SEQUENCE 9
Presario 1200XL Series
Model XL300, XL300A, and XL300B
Preparing the Notebook for Disassembly
Before beginning Removal and Replacement procedures, complete the following steps:
1. Disconnect AC power and any external devices.
2. Remove the battery pack (pg 10).
3. Remove any PC cards.
Important: The battery pack should be removed before performing any internal
maintenance on the Notebook.
ÅWARNING: 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 1200XL Series Portable Notebooks into the battery compartment. Do not
force the battery pack into the bay if insertion is difficult.
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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
potentially harmful battery components. No field-serviceable parts are located
inside the battery pack.
Note: Compaq Presario 1200XL 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 associated respective subassembly.

10 REMOVAL SEQUENCE PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIES
Presario 1200XL Series
Model XL300, XL300A, and XL300B
Removing the Battery
To remove the battery pack, complete the following steps:
1. Slide 1the battery compartment door down and remove it from the chassis.
2. Pull 2the battery from the chassis by the tab located on the end of the battery pack
and slide battery 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.
ÅWARNING: 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 Compaq
Presario 1200XL Series Portable Notebooks in the battery compartment. Do not
force the battery pack into the bay if insertion does not occur easily.
ÄCAUTION: Do not crush, puncture, or incinerate the battery pack. Do not open a
battery pack; this damages the pack, makes it unusable, and exposes potentially
harmful battery components. No field-serviceable parts are located inside the
battery pack.