compaq prosignia 150 User Manual

							MAINTENANCE & SERVICE GUIDE
for Prosignia 150 Series Computer
Index PagePreface -or- NoticeSpecificationsBattery Pack
Product DescriptionIllustrated Parts CatalogTroubleshootingRemoval & Replacement
Electrostatic Discharge
A sudden discharge of static electricity from a finger or other conducto\
r can destroy 
static-sensitive devices or microcircuitry. Often the spark is neither f\
elt nor heard, but 
damage occurs. An electronic device exposed to electrostatic discharge (\
ESD) may not 
be affected at all and will work perfectly throughout a normal cycle. Al\
though, it may 
function normally for a while, then degrade in the internal layers, redu\
cing its life 
expectancy. 
Networks built into many integrated circuits provide some protection, bu\
t in many 
cases, the discharge contains enough power to alter device parameters or\
 melt silicon 
junctions.
Generating Static
The table shows how different activities generate static electricity and\
 at different 
electrostatic voltage levels.
 
Typical Electrostatic Voltages
EventRelative Humidity
10%40%55%
Walking across
carpet35,000 V15,000V7,500 V
Walking across vinyl floor12,000 V5,000V3,000 V
Motions of bench worker6,000 V800 V400 V
Removing DIPS fromplastic tubes2,000 V700 V400 V
Removing DIPS from vinyl trays11,500 V4,000V2,000 V
Removing DIPS from Styrofoam14,500 V5,000V3,500 V
Removing bubblepack from PCBs26,000 V20,000 V7,000 V
Packing PCBs infoam-lined box21,000 V11,000 V5,000 V
NOTE:   700 volts can degrade a product.
Continue Preliminary pages:
Service Considerations
Cables & Connectors
Preparing Computer for Disassembly
 
 
Revised: September 16, 1999 
						

							MAINTENANCE & SERVICE GUIDE
for Prosignia 150 Series Computer
Index PagePreface -or- NoticeSpecificationsBattery Pack
Product DescriptionIllustrated Parts CatalogTroubleshootingRemoval & Replacement
Removal & Replacement
Service Considerations
Listed below are some of the considerations that you should keep in mind\
during the disassembly and assembly of the computer:
 
Tool and Software Requirements
To service the computer, you need the following: Compaq screwdriver kit (Spare Part No. 161946-001)
l   
Torx T-9 screwdriverSl   
3/16-inch and 5mm nut drivers (for screwlocks and standoffs)l   
Small, standard screwdriverl   
Small, Phillips screwdriverl   
Diagnostics softwarel   
Screws
The screws used in the computer are not interchangeable. If an incorrect\
 screw is used 
during the reassembly process, it can damage the unit. Compaq strongly r\
ecommends 
that all screws removed during disassembly be kept with the part that wa\
s removed, 
then returned to their proper locations.
IMPORTANT:   As each subassembly is removed from the computer, it should be 
placed away from the work area to prevent damage.
Continue Preliminary pages:
Cables & Connectors
Preparing Computer for Disassembly
 
 
Revised: September 16, 1999 
						

							MAINTENANCE & SERVICE GUIDE
for Prosignia 150 Series Computer
Index PagePreface -or- NoticeSpecificationsBattery Pack
Product DescriptionIllustrated Parts CatalogTroubleshootingRemoval & Replacement
Removal & Replacement
Cables & Connectors
Most cables used throughout the unit are ribbon cables. Cables must be h\
andled with extreme care to avoid
damage. Apply only the tension required to seat or unseat the cables dur\
ing insertion or removal from the
connector. Handle cables by the connector whenever possible. In all case\
s, avoid bending, twisting, or tearing
the cables, and ensure that the cables are routed in such a way that the\
y cannot be caught or snagged by parts being removed or replaced.
 
Cables
Use the following precautions when handling cables to avoid damage to th\
e cable or computer:
Always handle cables by their connectors.
l   
Avoid bending, twisting, or pulling on the cables.l   
Apply minimum required force when seating or unseating the cables from t\
heir connectors.l   
Place the cables in such a manner that they cannot be caught or snagged \
by parts being removed or 
replaced.l   
Handle flex cables with extreme care; they can tear easily.l   
 
CAUTION: When servicing these computers, ensure that cables are placed in the\
ir proper location during
the reassembly process. Improper cable placement can cause severe damage\
 to the unit.
  
Select the desired illustration:
Removing a Cable from a  ZIF Connector.
The ribbon cable position for the  4.3-GB and 6.4-GB hard drive.
The ribbon cable position for the  CD or DVD drive.
The ribbon cable position for the diskette drive.
The cable position for the  speaker assembly.
 
Plastic Parts
Plastic parts can be damaged by the use of excessive force during disass\
embly and reassembly. When handling 
the plastic parts, use care. Apply pressure only at the points designate\
d in the maintenance instructions.
 
Continue with last Preliminary page:
Preparing Computer for Disassembly
 
 
Revised: September 16, 1999 
						

							MAINTENANCE & SERVICE GUIDE
for Prosignia 150 Series Computer
Index PagePreface -or- NoticeSpecificationsBattery Pack
Product DescriptionIllustrated Parts CatalogTroubleshootingRemoval & Replacement
Removal & Replacement
ZIF Connector
 
The computer uses a zero insertion force (ZIF) 
connector for the keyboard cable to the system board. 
To remove a cable from a ZIF connector, lift both 
corners of the ZIF connector and slide simultaneously 
with constant light force.
 
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.
 
CAUTION:  When servicing this
computer, ensure that cables are placed 
in their proper location during the 
reassembly process. Improper cable 
placement can damage the computer.
Back to  Cables and Connectors .
 
 
Revised: September 16, 1999 
						

							MAINTENANCE & SERVICE GUIDE
for Prosignia 150 Series Computer
Index PagePreface -or- NoticeSpecificationsBattery Pack
Product DescriptionIllustrated Parts CatalogTroubleshootingRemoval & Replacement
Removal & Replacement
Cable Position for the 4.3 or 6.4 GB Drives
Back to  Cables and Connectors .
 
 
Revised: September 16, 1999 
						

							MAINTENANCE & SERVICE GUIDE
for Prosignia 150 Series Computer
Index PagePreface -or- NoticeSpecificationsBattery Pack
Product DescriptionIllustrated Parts CatalogTroubleshootingRemoval & Replacement
Removal & Replacement
Cable Position for the CD or DVD Drive
 
Back to  Cables and Connectors .
 
 
Revised: September 16, 1999 
						

							MAINTENANCE & SERVICE GUIDE
for Prosignia 150 Series Computer
Index PagePreface -or- NoticeSpecificationsBattery Pack
Product DescriptionIllustrated Parts CatalogTroubleshootingRemoval & Replacement
Removal & Replacement
Cable Position for the Diskette Drive
 
Back to  Cables and Connectors .
 
 
Revised: September 16, 1999 
						

							MAINTENANCE & SERVICE GUIDE
for Prosignia 150 Series Computer
Index PagePreface -or- NoticeSpecificationsBattery Pack
Product DescriptionIllustrated Parts CatalogTroubleshootingRemoval & Replacement
Removal & Replacement
Cable Position for the Speaker Assembly
 
Back to  Cables and Connectors .
 
 
Revised: September 16, 1999 
						

							MAINTENANCE & SERVICE GUIDE
for Prosignia 150 Series Computer
Index PagePreface -or- NoticeSpecificationsBattery Pack
Product DescriptionIllustrated Parts CatalogTroubleshootingRemoval & Replacement
Removal & Replacement
Preparing the computer for Disassembly
Before beginning removal and replacement procedures, complete the follow\
ing 
procedures: 
1. Disconnect AC power and any external devices. 
2. Remove the battery pack. 
3. Remove any PC Cards.
 
IMPORTANT: The battery pack should be removed before performing any internal 
maintenance on the computer.
 
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 objects to touch the battery contacts. Place only the batter\
y pack 
for the Compaq Prosignia Series Portable Computers into the battery 
compartment. Do not force the battery pack into the bay if insertion doe\
s not 
occur easily.
CAUTION:  Do not crush, puncture, or incinerate the battery pack. Do not
open a battery pack, as this damages the pack, makes it unusable, and 
exposes potentially harmful battery components. There are no 
field-serviceable parts located inside the battery pack.
 
NOTE: The Compaq Prosignia Series Portable Computers have several screws of 
various sizes which are 
not interchangeable. Care must be taken during
reassembly to ensure that the correct screws are used in their correct l\
ocation. 
During removal please keep respective screws with their associated 
sub-assembly.
Go to  Removal & Replacement Procedures .
 
Revised: September 16, 1999 
						

							MAINTENANCE & SERVICE GUIDE
for Prosignia 150 Series Computer
Index PagePreface -or- NoticeSpecificationsBattery Pack
Product DescriptionIllustrated Parts CatalogTroubleshootingRemoval & Replacement
Removal & Replacement
Removing the Battery Pack
*
>Preliminaries
>Serial
Number
Location
>Battery Pack
>Touchpad
Assembly
>Keyboard
>Heatspreader
>Processor
>Hard Drive
>CD/DVD
Drive
>Battery
Charger Board
>Modem
>Display
>CPU cover
>Speakers
>Diskette
Drive
>Fan
Assembly
>System
Board
>Dipswitch
Settings
>Memory
Module
*
   
To remove 
the battery 
pack, 
complete the 
following 
steps: 
1. Slide the 
battery pack 
compartment 
door down 
and remove 
it from the 
battery pack.
Next Step
 
Revised: September 16, 1999